Добавил вторую главу занимательного программирования

Занимательное программирование/2/1_horizontal_scroll/.gitignore

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+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/1_horizontal_scroll/build.gradle

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+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Modelling"
+        gdxVersion = '1.13.5'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}

Занимательное программирование/2/1_horizontal_scroll/core/build.gradle

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+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/1_horizontal_scroll/core/src/net/caraus/modelling/Modelling.java

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+package net.caraus.modelling;
+
+import java.util.Iterator;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.graphics.OrthographicCamera;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.utils.Array;
+import com.badlogic.gdx.utils.ScreenUtils;
+import com.badlogic.gdx.math.Rectangle;
+
+public class Modelling extends ApplicationAdapter {
+    private OrthographicCamera camera;
+    private SpriteBatch batch;
+    private Array<Rectangle> backgrounds;
+    private Texture backgroundImage;
+
+    static final int SCREEN_WIDTH = 609;
+    static final int SCREEN_HEIGHT = 456;
+    static final int STEP = 100;
+	
+	@Override
+	public void create () {
+        backgroundImage = new Texture(Gdx.files.internal("background.bmp"));
+
+        camera = new OrthographicCamera();
+        camera.setToOrtho(false, SCREEN_WIDTH, SCREEN_HEIGHT);
+
+        batch = new SpriteBatch();
+        backgrounds = new Array<Rectangle>();
+
+        Rectangle nextRectangle = new Rectangle();
+        nextRectangle.x = -SCREEN_WIDTH;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+	}
+
+	@Override
+	public void render () {
+		ScreenUtils.clear(0, 0, 0.2f, 1);
+
+        camera.update();
+        batch.setProjectionMatrix(camera.combined);
+
+        backgrounds.get(0).x = backgrounds.get(0).x + STEP * Gdx.graphics.getDeltaTime();
+        backgrounds.get(1).x = backgrounds.get(1).x + STEP * Gdx.graphics.getDeltaTime();
+
+        if (backgrounds.get(0).x >= 0) {
+            for (Iterator<Rectangle> iter = backgrounds.iterator(); iter.hasNext(); ) {
+                Rectangle background = iter.next();
+
+                background.x = background.x - SCREEN_WIDTH;
+            }
+        }
+		batch.begin();
+        for (Rectangle background: backgrounds) {
+            batch.draw(backgroundImage, background.x, background.y);
+        }
+		batch.end();
+	}
+	
+	@Override
+	public void dispose () {
+        backgroundImage.dispose();
+        batch.dispose();
+	}
+}

Занимательное программирование/2/1_horizontal_scroll/desktop/build.gradle

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+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.modelling.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/1_horizontal_scroll/desktop/src/net/caraus/modelling/DesktopLauncher.java

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+package net.caraus.modelling;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import net.caraus.modelling.Modelling;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+
+		config.setTitle("Drop");
+        config.setWindowedMode(800, 480);
+        config.useVsync(true);
+		config.setForegroundFPS(60);
+
+		new Lwjgl3Application(new Modelling(), config);
+	}
+}

Занимательное программирование/2/1_horizontal_scroll/gradle.properties

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+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/1_horizontal_scroll/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/1_horizontal_scroll/gradlew

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+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/1_horizontal_scroll/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/1_horizontal_scroll/settings.gradle

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+include 'desktop', 'core'

Занимательное программирование/2/2_vertical_scroll/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/2_vertical_scroll/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Modelling"
+        gdxVersion = '1.13.5'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}

Занимательное программирование/2/2_vertical_scroll/core/build.gradle

@@ -0,0 +1,5 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/DiagonalScreen.java

@@ -0,0 +1,81 @@
+package net.caraus.modelling;
+
+import java.util.Iterator;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Input.Keys;
+import com.badlogic.gdx.utils.ScreenUtils;
+import com.badlogic.gdx.math.Rectangle;
+
+public class DiagonalScreen extends GameScreen {
+
+    public DiagonalScreen(final Modelling game) {
+        super(game);
+
+        Rectangle nextRectangle = new Rectangle();
+        nextRectangle.x = -SCREEN_WIDTH;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = -SCREEN_HEIGHT;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = -SCREEN_WIDTH;
+        nextRectangle.y = -SCREEN_HEIGHT;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+    }
+
+    @Override
+    public void render(float delta) {
+        ScreenUtils.clear(0, 0, 0.2f, 1);
+
+        camera.update();
+        batch.setProjectionMatrix(camera.combined);
+
+        float xStep = SCREEN_WIDTH / 10;
+        float yStep = SCREEN_HEIGHT / 10;
+
+        backgrounds.get(0).x = backgrounds.get(0).x + xStep * delta;
+        backgrounds.get(1).x = backgrounds.get(1).x + xStep * delta;
+        backgrounds.get(2).x = backgrounds.get(2).x + xStep * delta;
+        backgrounds.get(3).x = backgrounds.get(3).x + xStep * delta;
+
+        backgrounds.get(0).y = backgrounds.get(0).y + yStep * delta;
+        backgrounds.get(1).y = backgrounds.get(1).y + yStep * delta;
+        backgrounds.get(2).y = backgrounds.get(2).y + yStep * delta;
+        backgrounds.get(3).y = backgrounds.get(3).y + yStep * delta;
+
+        if (backgrounds.get(0).x >= 0) {
+            for (Iterator<Rectangle> iter = backgrounds.iterator(); iter.hasNext(); ) {
+                Rectangle background = iter.next();
+
+                background.x = background.x - SCREEN_WIDTH;
+            }
+        }
+        if (backgrounds.get(1).y >= 0) {
+            for (Iterator<Rectangle> iter = backgrounds.iterator(); iter.hasNext(); ) {
+                Rectangle background = iter.next();
+
+                background.y = background.y - SCREEN_HEIGHT;
+            }
+        }
+		batch.begin();
+        for (Rectangle background: backgrounds) {
+            batch.draw(backgroundImage, background.x, background.y);
+        }
+		batch.end();
+
+        if (Gdx.input.isKeyPressed(Keys.ESCAPE)) {
+            game.setScreen(new MainMenuScreen(game));
+            dispose();
+        }
+    }
+}

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/GameScreen.java

@@ -0,0 +1,59 @@
+package net.caraus.modelling;
+
+import com.badlogic.gdx.graphics.OrthographicCamera;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+import com.badlogic.gdx.utils.Array;
+import com.badlogic.gdx.math.Rectangle;
+
+public abstract class GameScreen implements Screen {
+    protected final Modelling game;
+
+    protected OrthographicCamera camera;
+    protected SpriteBatch batch;
+    protected Array<Rectangle> backgrounds;
+    protected Texture backgroundImage;
+
+    static final int SCREEN_WIDTH = 609;
+    static final int SCREEN_HEIGHT = 456;
+    static final int STEP = 100;
+	
+	public GameScreen(final Modelling game) {
+        this.game = game;
+        backgroundImage = new Texture(Gdx.files.internal("background.bmp"));
+
+        camera = new OrthographicCamera();
+        camera.setToOrtho(false, SCREEN_WIDTH, SCREEN_HEIGHT);
+
+        batch = new SpriteBatch();
+        backgrounds = new Array<Rectangle>();
+	}
+
+    @Override
+    public void resize(int width, int height) {
+    }
+
+    @Override
+    public void show() {
+    }
+
+    @Override
+    public void hide() {
+    }
+
+    @Override
+    public void pause() {
+    }
+
+    @Override
+    public void resume() {
+    }
+
+	@Override
+	public void dispose () {
+        backgroundImage.dispose();
+        batch.dispose();
+	}
+}

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/HorizontalScreen.java

@@ -0,0 +1,54 @@
+package net.caraus.modelling;
+
+import java.util.Iterator;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Input.Keys;
+import com.badlogic.gdx.utils.ScreenUtils;
+import com.badlogic.gdx.math.Rectangle;
+
+public class HorizontalScreen extends GameScreen {
+
+	public HorizontalScreen(final Modelling game) {
+        super(game);
+
+        Rectangle nextRectangle = new Rectangle();
+        nextRectangle.x = -SCREEN_WIDTH;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+	}
+
+	@Override
+	public void render(float delta) {
+		ScreenUtils.clear(0, 0, 0.2f, 1);
+
+        camera.update();
+        batch.setProjectionMatrix(camera.combined);
+
+        backgrounds.get(0).x = backgrounds.get(0).x + STEP * Gdx.graphics.getDeltaTime();
+        backgrounds.get(1).x = backgrounds.get(1).x + STEP * Gdx.graphics.getDeltaTime();
+
+        if (backgrounds.get(0).x >= 0) {
+            for (Iterator<Rectangle> iter = backgrounds.iterator(); iter.hasNext(); ) {
+                Rectangle background = iter.next();
+
+                background.x = background.x - SCREEN_WIDTH;
+            }
+        }
+		batch.begin();
+        for (Rectangle background: backgrounds) {
+            batch.draw(backgroundImage, background.x, background.y);
+        }
+		batch.end();
+
+        if (Gdx.input.isKeyPressed(Keys.ESCAPE)) {
+            game.setScreen(new MainMenuScreen(game));
+            dispose();
+        }
+	}
+}

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/MainMenuScreen.java

@@ -0,0 +1,117 @@
+package net.caraus.modelling;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+import com.badlogic.gdx.graphics.OrthographicCamera;
+import com.badlogic.gdx.scenes.scene2d.Actor;
+import com.badlogic.gdx.scenes.scene2d.Stage;
+import com.badlogic.gdx.scenes.scene2d.ui.Table;
+import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
+import com.badlogic.gdx.scenes.scene2d.ui.TextButton.TextButtonStyle;
+import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
+import com.badlogic.gdx.utils.ScreenUtils;
+import com.badlogic.gdx.graphics.g2d.BitmapFont;
+
+public class MainMenuScreen implements Screen {
+    final Modelling game;
+
+    BitmapFont font;
+    OrthographicCamera camera;
+
+    private TextButton horizontalButton;
+    private TextButton verticalButton;
+    private TextButton crossButton;
+
+    private Stage stage;
+    private Table table;
+
+    public MainMenuScreen(final Modelling game) {
+        this.game = game;
+
+        font = new BitmapFont(); // use libGDX's default Arial font.
+        camera = new OrthographicCamera();
+        camera.setToOrtho(false, 800, 480);
+
+        stage = new Stage();
+        Gdx.input.setInputProcessor(stage);
+
+        table = new Table();
+        table.setFillParent(true);
+        table.setDebug(true);
+        stage.addActor(table);
+
+        createButtons();
+    }
+
+    private void createButtons() {
+        TextButtonStyle style = new TextButtonStyle();
+        style.font = font;
+
+        table.row().width(150);
+
+        horizontalButton = new TextButton("Waagerecht", style);
+        horizontalButton.addListener(new ChangeListener() {
+            public void changed(ChangeEvent event, Actor actor) {
+                game.setScreen(new HorizontalScreen(game));
+                dispose();
+            }
+        });
+        table.add(horizontalButton);
+
+        verticalButton = new TextButton("Senkrecht", style);
+        verticalButton.addListener(new ChangeListener() {
+            public void changed(ChangeEvent event, Actor actor) {
+                game.setScreen(new VerticalScreen(game));
+                dispose();
+            }
+        });
+        table.add(verticalButton);
+
+        crossButton = new TextButton("Diagonal", style);
+        crossButton.addListener(new ChangeListener() {
+            public void changed(ChangeEvent event, Actor actor) {
+                game.setScreen(new DiagonalScreen(game));
+                dispose();
+            }
+        });
+        table.add(crossButton);
+    }
+
+    @Override
+    public void render(float delta) {
+        ScreenUtils.clear(0, 0, 0.2f, 1);
+
+        camera.update();
+        game.batch.setProjectionMatrix(camera.combined);
+
+        stage.act(delta);
+        stage.draw();
+    }
+
+    @Override
+    public void resize(int width, int height) {
+        stage.getViewport().update(width, height, true);
+    }
+
+    @Override
+    public void show() {
+    }
+
+    @Override
+    public void hide() {
+    }
+
+    @Override
+    public void pause() {
+    }
+
+    @Override
+    public void resume() {
+    }
+
+    @Override
+    public void dispose() {
+        stage.dispose();
+        font.dispose();
+    }
+}

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/Modelling.java

@@ -0,0 +1,21 @@
+package net.caraus.modelling;
+
+import com.badlogic.gdx.Game;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+
+public class Modelling extends Game {
+    public SpriteBatch batch;
+
+    public void create() {
+        batch = new SpriteBatch();
+        this.setScreen(new MainMenuScreen(this));
+    }
+
+    public void render() {
+        super.render();
+    }
+
+    public void dispose() {
+        batch.dispose();
+    }
+}

Занимательное программирование/2/2_vertical_scroll/core/src/net/caraus/modelling/VerticalScreen.java

@@ -0,0 +1,54 @@
+package net.caraus.modelling;
+
+import java.util.Iterator;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Input.Keys;
+import com.badlogic.gdx.utils.ScreenUtils;
+import com.badlogic.gdx.math.Rectangle;
+
+public class VerticalScreen extends GameScreen {
+
+	public VerticalScreen(final Modelling game) {
+        super(game);
+
+        Rectangle nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = -SCREEN_HEIGHT;
+        backgrounds.add(nextRectangle);
+
+        nextRectangle = new Rectangle();
+        nextRectangle.x = 0;
+        nextRectangle.y = 0;
+        backgrounds.add(nextRectangle);
+	}
+
+	@Override
+	public void render(float delta) {
+		ScreenUtils.clear(0, 0, 0.2f, 1);
+
+        camera.update();
+        batch.setProjectionMatrix(camera.combined);
+
+        backgrounds.get(0).y = backgrounds.get(0).y + STEP * Gdx.graphics.getDeltaTime();
+        backgrounds.get(1).y = backgrounds.get(1).y + STEP * Gdx.graphics.getDeltaTime();
+
+        if (backgrounds.get(0).y >= 0) {
+            for (Iterator<Rectangle> iter = backgrounds.iterator(); iter.hasNext(); ) {
+                Rectangle background = iter.next();
+
+                background.y = background.y - SCREEN_HEIGHT;
+            }
+        }
+		batch.begin();
+        for (Rectangle background: backgrounds) {
+            batch.draw(backgroundImage, background.x, background.y);
+        }
+		batch.end();
+
+        if (Gdx.input.isKeyPressed(Keys.ESCAPE)) {
+            game.setScreen(new MainMenuScreen(game));
+            dispose();
+        }
+	}
+}

Занимательное программирование/2/2_vertical_scroll/desktop/build.gradle

@@ -0,0 +1,46 @@
+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.modelling.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/2_vertical_scroll/desktop/src/net/caraus/modelling/DesktopLauncher.java

@@ -0,0 +1,19 @@
+package net.caraus.modelling;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import net.caraus.modelling.Modelling;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+
+		config.setTitle("Drop");
+        config.setWindowedMode(800, 480);
+        config.useVsync(true);
+		config.setForegroundFPS(60);
+
+		new Lwjgl3Application(new Modelling(), config);
+	}
+}

Занимательное программирование/2/2_vertical_scroll/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/2_vertical_scroll/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/2_vertical_scroll/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/2_vertical_scroll/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/2_vertical_scroll/settings.gradle

@@ -0,0 +1 @@
+include 'desktop', 'core'

Занимательное программирование/2/3_multi_layer/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/3_multi_layer/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Multi Layer Background"
+        gdxVersion = '1.13.5'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}

Занимательное программирование/2/3_multi_layer/core/build.gradle

@@ -0,0 +1,5 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/3_multi_layer/core/src/net/caraus/multilayer/MultiLayer.java

@@ -0,0 +1,61 @@
+package net.caraus.multilayer;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.utils.ScreenUtils;
+
+public class MultiLayer extends ApplicationAdapter {
+	SpriteBatch batch;
+
+	Texture clouds;
+    Texture ground;
+    Texture tree;
+
+    float cloudsPosition = 512.0f;
+    float groundPosition = 0.0f;
+    float treePosition = 0.0f;
+
+    boolean reverseDirection = false;
+	
+	@Override
+	public void create () {
+		batch = new SpriteBatch();
+
+		clouds = new Texture("clouds.jpg");
+        ground = new Texture("ground.jpg");
+        tree = new Texture("tree.png");
+	}
+
+	@Override
+	public void render () {
+		ScreenUtils.clear(0, 0, 0, 1);
+		batch.begin();
+		batch.draw(ground, 0, groundPosition);
+		batch.draw(clouds, 0, cloudsPosition);
+		batch.draw(tree, 0, treePosition);
+		batch.end();
+
+        if (reverseDirection) {
+            groundPosition += 3.0f;
+            cloudsPosition += 1.0f;
+            treePosition += 4.0f;
+        } else {
+            groundPosition -= 3.0f;
+            cloudsPosition -= 1.0f;
+            treePosition -= 4.0f;
+        }
+        if (cloudsPosition < 360 || cloudsPosition > 512) {
+            reverseDirection = !reverseDirection;
+        }
+	}
+	
+	@Override
+	public void dispose () {
+		batch.dispose();
+
+        ground.dispose();
+        tree.dispose();
+		clouds.dispose();
+	}
+}

Занимательное программирование/2/3_multi_layer/desktop/build.gradle

@@ -0,0 +1,46 @@
+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.multilayer.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/3_multi_layer/desktop/src/net/caraus/multilayer/DesktopLauncher.java

@@ -0,0 +1,17 @@
+package net.caraus.multilayer;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+
+		config.setForegroundFPS(60);
+		config.setTitle("Multi Layer Background");
+        config.setWindowedMode(1280, 1024);
+
+		new Lwjgl3Application(new MultiLayer(), config);
+	}
+}

Занимательное программирование/2/3_multi_layer/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/3_multi_layer/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/3_multi_layer/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/3_multi_layer/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/3_multi_layer/settings.gradle

@@ -0,0 +1 @@
+include 'desktop', 'core'

Занимательное программирование/2/4_fading_in/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/4_fading_in/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Fade In"
+        gdxVersion = '1.13.5'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}

Занимательное программирование/2/4_fading_in/core/build.gradle

@@ -0,0 +1,5 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/4_fading_in/core/src/net/caraus/fadein/FadeIn.java

@@ -0,0 +1,84 @@
+package net.caraus.fadein;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
+import com.badlogic.gdx.graphics.Pixmap;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.Pixmap.Format;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.utils.ScreenUtils;
+
+public class FadeIn extends ApplicationAdapter {
+	SpriteBatch batch;
+
+	Texture etalonTexture;
+    Pixmap etalon;
+
+    Pixmap pixmap;
+    Texture img;
+    int[][][] buffer;
+	
+	@Override
+	public void create () {
+		batch = new SpriteBatch();
+
+        FileHandle fileHandle = Gdx.files.internal("badlogic.bmp");
+        etalon = new Pixmap(fileHandle);
+		etalonTexture = new Texture(etalon);
+
+        pixmap = new Pixmap(etalon.getWidth(), etalon.getHeight(), Format.RGB888);
+        buffer = new int[etalon.getWidth()][etalon.getHeight()][3];
+        for (int i = 0; i < pixmap.getWidth(); ++i) {
+            for (int j = 0; j < pixmap.getHeight(); ++j) {
+                buffer[i][j][0] = 0xff;
+                buffer[i][j][1] = 0xff;
+                buffer[i][j][2] = 0xff;
+            }
+        }
+        img = new Texture(pixmap);
+	}
+
+	@Override
+	public void render () {
+		ScreenUtils.clear(1, 0, 0, 1);
+
+        for (int i = 0; i < pixmap.getWidth(); ++i) {
+            for (int j = 0; j < pixmap.getHeight(); ++j) {
+                int etalonPixel = etalon.getPixel(i, j);
+
+                int etalonRed = (etalonPixel >> 24) & 0xff;
+                int etalonGreen = (etalonPixel >> 16) & 0xff;
+                int etalonBlue = (etalonPixel >> 8) & 0xff;
+
+                if (etalonRed < buffer[i][j][0]) {
+                    --buffer[i][j][0];
+                }
+                if (etalonGreen < buffer[i][j][1]) {
+                    --buffer[i][j][1];
+                }
+                if (etalonBlue < buffer[i][j][2]) {
+                    --buffer[i][j][2];
+                }
+                pixmap.setColor((buffer[i][j][0] << 24) | (buffer[i][j][1] << 16) | (buffer[i][j][2] << 8) | 0xff);
+                pixmap.drawPixel(i, j);
+            }
+        }
+        img.draw(pixmap, 0, 0);
+
+		batch.begin();
+		batch.draw(etalonTexture, 0, 0);
+		batch.draw(img, etalon.getWidth() + 15, 0);
+		batch.end();
+	}
+	
+	@Override
+	public void dispose () {
+		batch.dispose();
+		etalonTexture.dispose();
+        etalon.dispose();
+
+        img.dispose();
+        pixmap.dispose();
+	}
+}

Занимательное программирование/2/4_fading_in/desktop/build.gradle

@@ -0,0 +1,46 @@
+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.fadein.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/4_fading_in/desktop/src/net/caraus/fadein/DesktopLauncher.java

@@ -0,0 +1,15 @@
+package net.caraus.fadein;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import net.caraus.fadein.FadeIn;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+		config.setForegroundFPS(30);
+		config.setTitle("Fade In");
+		new Lwjgl3Application(new FadeIn(), config);
+	}
+}

Занимательное программирование/2/4_fading_in/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/4_fading_in/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/4_fading_in/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/4_fading_in/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/4_fading_in/settings.gradle

@@ -0,0 +1 @@
+include 'core', 'desktop'

Занимательное программирование/2/5_change_pic/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/5_change_pic/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Fade In"
+        gdxVersion = '1.11.0'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}

Занимательное программирование/2/5_change_pic/core/build.gradle

@@ -0,0 +1,5 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/5_change_pic/core/src/net/caraus/fadein/FadeIn.java

@@ -0,0 +1,92 @@
+package net.caraus.fadein;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
+import com.badlogic.gdx.graphics.Pixmap;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.utils.ScreenUtils;
+
+public class FadeIn extends ApplicationAdapter {
+	SpriteBatch batch;
+
+	Texture etalonTexture;
+    Pixmap etalon;
+
+    Pixmap pixmap;
+    Texture img;
+    int[][][] buffer;
+	
+	@Override
+	public void create () {
+		batch = new SpriteBatch();
+
+        FileHandle etalonHandle = Gdx.files.internal("badlogic.bmp");
+        etalon = new Pixmap(etalonHandle);
+		etalonTexture = new Texture(etalon);
+
+        FileHandle imgHandle = Gdx.files.internal("background2.bmp");
+        pixmap = new Pixmap(imgHandle);
+        buffer = new int[pixmap.getWidth()][pixmap.getHeight()][3];
+        for (int i = 0; i < pixmap.getWidth(); ++i) {
+            for (int j = 0; j < pixmap.getHeight(); ++j) {
+                int pixmapPixel = pixmap.getPixel(i, j);
+
+                buffer[i][j][0] = (pixmapPixel >> 24) & 0xff; // Red.
+                buffer[i][j][1] = (pixmapPixel >> 16) & 0xff; // Green.
+                buffer[i][j][2] = (pixmapPixel >> 8) & 0xff; // Blue.
+            }
+        }
+        img = new Texture(pixmap);
+	}
+
+	@Override
+	public void render () {
+		ScreenUtils.clear(1, 0, 0, 1);
+
+        for (int i = 0; i < pixmap.getWidth(); ++i) {
+            for (int j = 0; j < pixmap.getHeight(); ++j) {
+                int etalonPixel = etalon.getPixel(i, j);
+
+                int etalonRed = (etalonPixel >> 24) & 0xff;
+                int etalonGreen = (etalonPixel >> 16) & 0xff;
+                int etalonBlue = (etalonPixel >> 8) & 0xff;
+
+                if (etalonRed < buffer[i][j][0]) {
+                    --buffer[i][j][0];
+                } else if (etalonRed > buffer[i][j][0]) {
+                    ++buffer[i][j][0];
+                }
+                if (etalonGreen < buffer[i][j][1]) {
+                    --buffer[i][j][1];
+                } else if (etalonGreen > buffer[i][j][1]) {
+                    ++buffer[i][j][1];
+                }
+                if (etalonBlue < buffer[i][j][2]) {
+                    --buffer[i][j][2];
+                } else if (etalonBlue > buffer[i][j][2]) {
+                    ++buffer[i][j][2];
+                }
+                pixmap.setColor((buffer[i][j][0] << 24) | (buffer[i][j][1] << 16) | (buffer[i][j][2] << 8) | 0xff);
+                pixmap.drawPixel(i, j);
+            }
+        }
+        img.draw(pixmap, 0, 0);
+
+		batch.begin();
+		batch.draw(etalonTexture, 0, 0);
+		batch.draw(img, etalon.getWidth() + 15, 0);
+		batch.end();
+	}
+	
+	@Override
+	public void dispose () {
+		batch.dispose();
+		etalonTexture.dispose();
+        etalon.dispose();
+
+        img.dispose();
+        pixmap.dispose();
+	}
+}

Занимательное программирование/2/5_change_pic/desktop/build.gradle

@@ -0,0 +1,46 @@
+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.fadein.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/5_change_pic/desktop/src/net/caraus/fadein/DesktopLauncher.java

@@ -0,0 +1,15 @@
+package net.caraus.fadein;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import net.caraus.fadein.FadeIn;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+		config.setForegroundFPS(30);
+		config.setTitle("Fade In");
+		new Lwjgl3Application(new FadeIn(), config);
+	}
+}

Занимательное программирование/2/5_change_pic/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/5_change_pic/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/5_change_pic/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/5_change_pic/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/5_change_pic/settings.gradle

@@ -0,0 +1 @@
+include 'core', 'desktop'

Занимательное программирование/2/6_pixel/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/6_pixel/build.gradle

@@ -0,0 +1,62 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Pixel Image"
+        gdxVersion = '1.13.5'
+        roboVMVersion = '2.3.16'
+        box2DLightsVersion = '1.5'
+        ashleyVersion = '1.7.4'
+        aiVersion = '1.8.2'
+        gdxControllersVersion = '2.2.1'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}

Занимательное программирование/2/6_pixel/core/build.gradle

@@ -0,0 +1,5 @@
+[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
+
+sourceSets.main.java.srcDirs = [ "src/" ]
+
+eclipse.project.name = appName + "-core"

Занимательное программирование/2/6_pixel/core/src/net/caraus/pixelimage/PixelImage.java

@@ -0,0 +1,90 @@
+package net.caraus.pixelimage;
+
+import java.util.random.RandomGenerator;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
+import com.badlogic.gdx.graphics.Pixmap;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.Pixmap.Format;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.math.RandomXS128;
+import com.badlogic.gdx.utils.ScreenUtils;
+
+public class PixelImage extends ApplicationAdapter {
+	private SpriteBatch batch;
+	private Texture img;
+    private Pixmap canvas;
+    private Pixmap etalon;
+    private int[][][] buffer;
+    private static final int X_OFFSET = 200;
+    private static final int Y_OFFSET = 100;
+    private int iterations = 0;
+	
+	@Override
+	public void create () {
+		batch = new SpriteBatch();
+
+        FileHandle fileHandle = Gdx.files.internal("badlogic.jpg");
+        etalon = new Pixmap(fileHandle);
+
+        canvas = new Pixmap(etalon.getWidth() + X_OFFSET * 2, etalon.getHeight() + Y_OFFSET * 2, Format.RGB888);
+        buffer = new int[etalon.getWidth()][etalon.getHeight()][2];
+
+        for (int i = 0; i < buffer.length; ++i) {
+            for (int j = 0; j < buffer[i].length; ++j) {
+                buffer[i][j][0] = X_OFFSET + i;
+                buffer[i][j][1] = Y_OFFSET + j;
+            }
+        }
+        img = new Texture(canvas);
+	}
+
+	@Override
+	public void render () {
+		ScreenUtils.clear(1, 1, 1, 1);
+
+        canvas.setColor(1, 1, 1, 1);
+        canvas.fill();
+
+        // Draw the buffer.
+        for (int i = 0; i < buffer.length; ++i) {
+            for (int j = 0; j < buffer[i].length; ++j) {
+                int pixelColor = etalon.getPixel(i, j);
+
+                canvas.setColor(pixelColor);
+                canvas.drawPixel(buffer[i][j][0], buffer[i][j][1]);
+            }
+        }
+
+        if (iterations < 20) {
+            RandomGenerator randomGenerator = new RandomXS128();
+            // Change the pixel position.
+            for (int i = 0; i < buffer.length; ++i) {
+                for (int j = 0; j < buffer[i].length; ++j) {
+                    int step = 5 * iterations + 1;
+                    int moveX = randomGenerator.nextInt(step) - step / 2;
+                    int moveY = randomGenerator.nextInt(step) - step / 2;
+
+                    buffer[i][j][0] += moveX;
+                    buffer[i][j][1] += moveY;
+                }
+            }
+            ++iterations;
+        }
+		img.draw(canvas, 0, 0);
+
+		batch.begin();
+        batch.draw(img, 0, 0);
+		batch.end();
+	}
+	
+	@Override
+	public void dispose () {
+		batch.dispose();
+		img.dispose();
+        canvas.dispose();
+        etalon.dispose();
+	}
+}

Занимательное программирование/2/6_pixel/desktop/build.gradle

@@ -0,0 +1,46 @@
+sourceSets.main.java.srcDirs = [ "src/" ]
+sourceSets.main.resources.srcDirs = ["../assets"]
+
+project.ext.mainClassName = "net.caraus.pixelimage.DesktopLauncher"
+project.ext.assetsDir = new File("../assets")
+
+import org.gradle.internal.os.OperatingSystem
+
+task run(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+
+    if (OperatingSystem.current() == OperatingSystem.MAC_OS) {
+        // Required to run on macOS
+        jvmArgs += "-XstartOnFirstThread"
+    }
+}
+
+task debug(dependsOn: classes, type: JavaExec) {
+    mainClass = project.mainClassName
+    classpath = sourceSets.main.runtimeClasspath
+    standardInput = System.in
+    workingDir = project.assetsDir
+    ignoreExitValue = true
+    debug = true
+}
+
+task dist(type: Jar) {
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+    manifest {
+        attributes 'Main-Class': project.mainClassName
+    }
+    dependsOn configurations.runtimeClasspath
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+    with jar
+}
+
+
+dist.dependsOn classes
+
+eclipse.project.name = appName + "-desktop"

Занимательное программирование/2/6_pixel/desktop/src/net/caraus/pixelimage/DesktopLauncher.java

@@ -0,0 +1,15 @@
+package net.caraus.pixelimage;
+
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
+import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
+import net.caraus.pixelimage.PixelImage;
+
+// Please note that on macOS your application needs to be started with the -XstartOnFirstThread JVM argument
+public class DesktopLauncher {
+	public static void main (String[] arg) {
+		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
+		config.setForegroundFPS(60);
+		config.setTitle("Pixel Image");
+		new Lwjgl3Application(new PixelImage(), config);
+	}
+}

Занимательное программирование/2/6_pixel/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.daemon=true
+org.gradle.jvmargs=-Xms128m -Xmx1500m
+org.gradle.configureondemand=false

Занимательное программирование/2/6_pixel/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

Занимательное программирование/2/6_pixel/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

Занимательное программирование/2/6_pixel/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Занимательное программирование/2/6_pixel/settings.gradle

@@ -0,0 +1 @@
+include 'core', 'desktop'

Занимательное программирование/2/7_curtain/.gitignore

@@ -0,0 +1,114 @@
+## Java
+
+*.class
+*.war
+*.ear
+hs_err_pid*
+
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM

Занимательное программирование/2/7_curtain/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        google()
+    }
+    dependencies {
+        
+
+    }
+}
+
+allprojects {
+    apply plugin: "eclipse"
+
+    version = '1.0'
+    ext {
+        appName = "Curtain"
+        gdxVersion = '1.13.5'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        google()
+        gradlePluginPortal()
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
+        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
+        maven { url "https://jitpack.io" }
+    }
+}
+
+project(":core") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        api "com.badlogicgames.gdx:gdx:$gdxVersion"
+        
+    }
+}
+
+project(":desktop") {
+    apply plugin: "java-library"
+
+
+    dependencies {
+        implementation project(":core")
+        api "com.badlogicgames.gdx:gdx-backend-lwjgl3:$gdxVersion"
+        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
+        
+    }
+}