Add book "Занимательное программирование"
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BIN
Занимательное программирование/1/2_ideal_gas/project1.ico
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BIN
Занимательное программирование/1/2_ideal_gas/project1.ico
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Занимательное программирование/1/2_ideal_gas/project1.lpi
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77
Занимательное программирование/1/2_ideal_gas/project1.lpi
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="11"/>
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<General>
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<SessionStorage Value="InProjectDir"/>
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<MainUnit Value="0"/>
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<Title Value="Ideal gas"/>
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<Scaled Value="True"/>
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<ResourceType Value="res"/>
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<UseXPManifest Value="True"/>
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<XPManifest>
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<DpiAware Value="True"/>
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</XPManifest>
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<Icon Value="0"/>
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</General>
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<BuildModes Count="1">
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<Item1 Name="Default" Default="True"/>
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</BuildModes>
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<PublishOptions>
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<Version Value="2"/>
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<UseFileFilters Value="True"/>
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</PublishOptions>
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<RunParams>
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<FormatVersion Value="2"/>
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<Modes Count="0"/>
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</RunParams>
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<RequiredPackages Count="1">
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<Item1>
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<PackageName Value="LCL"/>
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</Item1>
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</RequiredPackages>
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<Units Count="2">
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<Unit0>
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<Filename Value="project1.lpr"/>
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<IsPartOfProject Value="True"/>
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</Unit0>
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<Unit1>
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<Filename Value="unit1.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="Form1"/>
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<ResourceBaseClass Value="Form"/>
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<UnitName Value="Unit1"/>
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</Unit1>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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<Version Value="11"/>
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<Target>
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<Filename Value="project1"/>
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</Target>
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<SearchPaths>
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<IncludeFiles Value="$(ProjOutDir)"/>
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<UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
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</SearchPaths>
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<Linking>
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<Options>
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<Win32>
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<GraphicApplication Value="True"/>
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</Win32>
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</Options>
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</Linking>
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</CompilerOptions>
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<Debugging>
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<Exceptions Count="3">
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<Item1>
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<Name Value="EAbort"/>
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</Item1>
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<Item2>
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<Name Value="ECodetoolError"/>
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</Item2>
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<Item3>
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<Name Value="EFOpenError"/>
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</Item3>
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</Exceptions>
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</Debugging>
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</CONFIG>
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23
Занимательное программирование/1/2_ideal_gas/project1.lpr
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23
Занимательное программирование/1/2_ideal_gas/project1.lpr
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program project1;
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{$mode objfpc}{$H+}
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uses
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{$IFDEF UNIX}{$IFDEF UseCThreads}
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cthreads,
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{$ENDIF}{$ENDIF}
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Interfaces, // this includes the LCL widgetset
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Forms, Unit1
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{ you can add units after this };
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{$R *.res}
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begin
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RequireDerivedFormResource:=True;
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Application.Title:='Ideal gas';
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Application.Scaled:=True;
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Application.Initialize;
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Application.CreateForm(TForm1, Form1);
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Application.Run;
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end.
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47
Занимательное программирование/1/2_ideal_gas/project1.lps
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Занимательное программирование/1/2_ideal_gas/project1.lps
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectSession>
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<Version Value="11"/>
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<BuildModes Active="Default"/>
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<Units Count="2">
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<Unit0>
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<Filename Value="project1.lpr"/>
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<IsPartOfProject Value="True"/>
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<EditorIndex Value="-1"/>
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<WindowIndex Value="-1"/>
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<TopLine Value="-1"/>
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<CursorPos X="-1" Y="-1"/>
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<UsageCount Value="20"/>
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</Unit0>
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<Unit1>
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<Filename Value="unit1.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="Form1"/>
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<ResourceBaseClass Value="Form"/>
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<UnitName Value="Unit1"/>
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<IsVisibleTab Value="True"/>
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<CursorPos Y="45"/>
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<UsageCount Value="20"/>
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<Loaded Value="True"/>
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<LoadedDesigner Value="True"/>
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</Unit1>
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</Units>
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<JumpHistory Count="3" HistoryIndex="2">
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<Position1>
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<Filename Value="unit1.pas"/>
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</Position1>
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<Position2>
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<Filename Value="unit1.pas"/>
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<Caret Line="16" Column="15"/>
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</Position2>
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<Position3>
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<Filename Value="unit1.pas"/>
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<Caret Line="48" Column="5"/>
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</Position3>
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</JumpHistory>
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<RunParams>
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<FormatVersion Value="2"/>
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<Modes Count="0" ActiveMode=""/>
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</RunParams>
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</ProjectSession>
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</CONFIG>
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BIN
Занимательное программирование/1/2_ideal_gas/project1.res
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BIN
Занимательное программирование/1/2_ideal_gas/project1.res
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Binary file not shown.
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Занимательное программирование/1/2_ideal_gas/unit1.lfm
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Занимательное программирование/1/2_ideal_gas/unit1.lfm
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object Form1: TForm1
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Left = 976
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Height = 506
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Top = 800
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Width = 767
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Caption = 'Form1'
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ClientHeight = 506
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ClientWidth = 767
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DesignTimePPI = 93
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LCLVersion = '2.0.12.0'
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object Screen: TPaintBox
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Left = 11
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Height = 432
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Top = 11
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Width = 740
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OnPaint = ScreenPaint
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end
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object StartStopBtn: TButton
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Left = 336
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Height = 20
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Top = 464
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Width = 99
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Caption = 'Пуск'
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OnClick = StartStopBtnClick
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TabOrder = 0
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end
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end
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125
Занимательное программирование/1/2_ideal_gas/unit1.pas
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125
Занимательное программирование/1/2_ideal_gas/unit1.pas
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unit Unit1;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, Forms, Controls, Graphics, Dialogs, ExtCtrls, StdCtrls,
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Math;
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type
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Molecule = record
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X, Y: Integer;
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Vx, Vy: Integer;
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end;
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{ TForm1 }
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TForm1 = class(TForm)
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StartStopBtn: TButton;
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Screen: TPaintBox;
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procedure StartStopBtnClick(Sender: TObject);
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procedure ScreenPaint(Sender: TObject);
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private
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const R: Integer = 10; { Радиус молекулы }
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V: Integer = 7; { Максимальная скорость молекулы }
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N = 30; { Количество молекул }
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var Mol: array[1..N] of Molecule; { Массив молекул }
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public
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end;
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var
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Form1: TForm1;
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IsRunning: Boolean = false;
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implementation
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{$R *.lfm}
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{ TForm1 }
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procedure TForm1.ScreenPaint(Sender: TObject);
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var i: Integer;
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begin
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if not IsRunning then Exit;
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for i := 1 to N do { Цикл по всем молекулам }
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begin
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Screen.Canvas.Pen.Color := clBtnFace; { Стираем молекулу }
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Screen.Canvas.Ellipse(Mol[i].X - R, Mol[i].Y - R,
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Mol[i].X + R, Mol[i].Y + R);
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Mol[i].X := Mol[i].X + Mol[i].Vx; { Сдвигаем на новую позицию }
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Mol[i].Y := Mol[i].Y + Mol[i]. Vy;
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{ Определяем, не вышла ли молекула за границы аквариума }
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if Mol[i].X > Screen.Width - R then
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begin
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Mol[i].X := Screen.Width - R;
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Mol[i].Vx := -Mol[i].Vx;
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end;
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if Mol[i].X < R then
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begin
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Mol[i].X := R;
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Mol[i].Vx := -Mol[i].Vx;
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end;
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if Mol[i].Y > Screen.Height - R then
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begin
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Mol[i].Y := Screen.Height - R;
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Mol[i].Vy := -Mol[i].Vy;
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end;
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if Mol[i].Y < R then
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begin
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Mol[i].Y := R;
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Mol[i].Vy := -Mol[i].Vy;
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end;
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Screen.Canvas.Pen.Color := clBlue; { Рисуем молекулу на новой }
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Screen.Canvas.Ellipse(Mol[i].X - R, Mol[i].Y - R, { позиции }
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Mol[i].X + R, Mol[i].Y + R);
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end;
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end;
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procedure TForm1.StartStopBtnClick(Sender: TObject);
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var angle: Real; { Угол, задающий изначальное направление полета }
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i: Integer; { Счетчик цикла }
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CurV: Integer; { Выбранная случайная скорость молекулы }
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begin
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if IsRunning then
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begin
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IsRunning := false;
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StartStopBtn.Caption := 'Пуск';
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Exit;
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end;
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StartStopBtn.Caption := 'Стоп';
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IsRunning := true;
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Randomize;
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for i := 1 to N do { Цикл по всем молекулам }
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begin
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Mol[i].X := RandomRange(R, Screen.Width - R); { Выбор начального }
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Mol[i].Y := RandomRange(R, Screen.Height - R); { положения молекулы }
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angle := Random(360) * Pi / 180; { и ее направления }
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CurV := RandomRange(1, V); { Выбор скорости молекулы (1 - V) }
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Mol[i].Vx := Round(CurV * Sin(angle)); { Получение составляющих }
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Mol[i].Vy := Round(CurV * Cos(angle)); { скорости молекулы }
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end;
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while IsRunning do { Основной цикл }
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begin
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Screen.Invalidate;
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Sleep(10); { Пауза на 10 миллисекунд }
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Application.ProcessMessages;
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if Application.Terminated then Break;
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end;
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end;
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end.
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