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MainUnit.pas
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MainUnit.pas
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unit MainUnit;
interface
uses
System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.Effects,
FMX.Controls.Presentation, FMX.StdCtrls, FMX.Objects, FMX.Utils,
System.Math, System.DateUtils, System.Threading;
const
NUM_OF_AGENTS = 16000;
type
TAntObj = Record
x,y:Single;
direction:Single;
Gcolor:Byte;
End;
TForm1 = class(TForm)
Timer1: TTimer;
MakeScreenshotTimer: TTimer;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure FormKeyUp(Sender: TObject; var Key: Word; var KeyChar: Char;
Shift: TShiftState);
procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Single);
procedure FormKeyDown(Sender: TObject; var Key: Word; var KeyChar: Char;
Shift: TShiftState);
procedure FormMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single);
procedure MakeScreenshotTimerTimer(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
BaseBitmap:TBitmap;
Ants:Array[1..NUM_OF_AGENTS] of TAntObj;
speed:Single;
alpha_param:byte;
stillmove:boolean;
mode:byte;
respawn_mode:Boolean;
TrailKiller:boolean;
KillWeak:boolean;
settings_angle:Single;
ShowInstructions:Boolean;
InstructionsText:string;
Hint_StartTime:TDateTime;
Hint_Show:boolean;
Hint_Text:string;
function Sense(Ant:TAntObj;AngleOffset:Single;Data: TBitmapData):Byte;
procedure AgentMove(i:Integer;Data:TBitmapData;alpha_param:byte;w,h:Integer);
procedure ShowHint(hint:string);
procedure HintDraw(canvas:TCanvas);
procedure SaveScreenshot(x_count,y_count:integer;prefix:string = 'Screenshot');
procedure StartPosition;
end;
var
Form1: TForm1;
implementation
{$R *.fmx}
function TForm1.Sense(Ant:TAntObj;AngleOffset:Single;Data: TBitmapData):Byte;
var
Angle:Single;
newPosX,newPosY:Single;
begin
if TrailKiller and (Ant.x>Ants[1].x-50) and (Ant.x<Ants[1].x+50) and (Ant.y>Ants[1].y-50) and (Ant.y<Ants[1].y+50)
and(ant.x <> Ants[1].x)and(ant.y <> Ants[1].y) then begin
result:=0;
Exit;
end;
Angle:=Ant.direction + AngleOffset;
newPosX:=Ant.x+sin(Angle)*(speed+2);
newPosY:=Ant.y+cos(Angle)*(speed+2);
if newPosX>BaseBitmap.Width-1 then newPosX:=newPosX-BaseBitmap.Width+1;
if newPosX<0 then newPosX:=newPosX+BaseBitmap.Width-1;
if newPosY>BaseBitmap.Height-1 then newPosY:=newPosY-BaseBitmap.Height+1;
if newPosY<0 then newPosY:=newPosY+BaseBitmap.Height-1;
Result := TAlphaColorRec(Data.GetPixel(Round(newPosX),Round(newPosY))).R;
//if Result>100 then Result:=Result-(Result-100)*2;
if (Result<10) and (mode = 1) then Result:=50;
if (Result>100) and (mode = 1) then Result:=0;
if (Result>128) and (mode = 2) then Result:=Result-(Result-128)*2;
//if (Result<10) and (mode = 4) then Result:=TAlphaColorRec(Data.GetPixel(Round(newPosX),Round(newPosY))).B;
if (Result>220) and (mode = 3) then Result:=220-(Result-220);
end;
function ARGBtoColorChannels(A, R, G, B: Byte):TAlphaColor;
var rec:TAlphaColorRec;
begin
rec.A:=A;
rec.R:=R;
rec.G:=G;
rec.B:=B;
Result:=TAlphaColor(rec);
end;
type
PIntArray = ^TIntArray;
TIntArray = array [0 .. 0] of Integer;
procedure Diffuse(Data: TBitmapData;w,h:Integer);
var
R,B:PIntArray;
begin
GetMem(R,w * h * SizeOf(Integer));
GetMem(B,w * h * SizeOf(Integer));
TParallel.&For(0,w*h-1,
procedure(i:Integer)
var
offsetX,offsetY,sampleX,sampleY:Integer;
x,y,sum, sumB:integer;
begin
y:=i div w;
x:=i mod w;
sum:=0;
sumB:=0;
for offsetX := -1 to 1 do begin
for offsetY := -1 to 1 do begin
SampleX := min(w-1,max(0,x+offsetX));
SampleY := min(h-1,max(0,y+offsetY));
sum:=sum+TAlphaColorRec(Data.GetPixel(SampleX,SampleY)).R;
sumB:=sumB+TAlphaColorRec(Data.GetPixel(SampleX,SampleY)).B;
end;
end;
R[i]:=sum div 9;
B[i]:=sumB div 9;
if R[i]>0 then R[i]:=R[i]-1;
if B[i]>0 then B[i]:=B[i]-1;
end);
TParallel.&For(0,w*h-1,
procedure(i:Integer)
begin
Data.SetPixel(i mod w,i div w,ARGBtoColorChannels(Form1.alpha_param,R[i],B[i] div 2,B[i]))
// if (i div w + i) mod 2 = 0 then
// Data.SetPixel(i mod w,i div w,ARGBtoColorChannels(Form1.alpha_param,R[i],B[i] div 2,B[i]))
// else
// Data.SetPixel(i mod w,i div w,ARGBtoColorChannels(Form1.alpha_param,R[i],R[i] div 2,B[i]))
// //Data.SetPixel(i mod w,i div w,ARGBtoColorChannels(255,R[i],R[i],R[i]))
end);
FreeMem(R,w * h * SizeOf(Integer));
FreeMem(B,w * h * SizeOf(Integer));
end;
procedure TForm1.AgentMove(i:Integer;Data:TBitmapData;alpha_param:byte;w,h:Integer);
var
weights:array[1..3] of Byte;
r:byte;
begin
weights[1]:=Sense(ants[i],settings_angle,Data);
weights[2]:=Sense(ants[i],0,Data);
weights[3]:=Sense(ants[i],-settings_angle,Data);
r:=TAlphaColorRec(Data.GetPixel(Round(Ants[i].x),Round(Ants[i].y))).R;
if KillWeak and (r = 0)then begin
Ants[i].x:=w div 2;
Ants[i].y:=h div 2;
r:=200;
end;
if r+20>255 then r:=255 else r:=r+20;
//Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),ARGBtoColorChannels(alpha_param,r,r,r));
if r<120 then
Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),ARGBtoColorChannels(alpha_param,r,20,255))
else
Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),ARGBtoColorChannels(alpha_param,r,Ants[i].Gcolor,Ants[i].Gcolor div 2 + 60));
//Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),ARGBtoColorChannels(alpha_param,r,Ants[i].Gcolor,(255-r) div 2 + 128 ));
if TrailKiller and (i = 1) then
Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),$FFFFFFFF);
if (weights[2]>weights[1]) and (weights[2]>weights[3]) then begin
//Ants[i].direction:=Ants[i].direction;
//Ants[i].direction:=Ants[i].direction+random*0.264-0.132;
//Ants[i].direction:=Ants[i].direction+random(3)*0.6-0.3;
end else if (weights[2]<weights[1]) and (weights[2]<weights[3]) then begin
//Ants[i].direction:=Ants[i].direction+random*0.6-0.3;
Ants[i].direction:=Ants[i].direction+random(3)*settings_angle-settings_angle;
end else if weights[3]>weights[1] then begin
Ants[i].direction:=Ants[i].direction-settings_angle;
end else if weights[3]<weights[1] then begin
Ants[i].direction:=Ants[i].direction+settings_angle;
end else Ants[i].direction:=Ants[i].direction+random(3)*0.1-0.1;
if Ants[i].direction>2*pi then Ants[i].direction:=Ants[i].direction-2*pi;
if Ants[i].direction<0 then Ants[i].direction:=Ants[i].direction+2*pi;
if stillmove then begin
Ants[i].x:=Ants[i].x+sin(Ants[i].direction)*speed;
Ants[i].y:=Ants[i].y+cos(Ants[i].direction)*speed;
end;
if respawn_mode then begin
if (Ants[i].x>w-1) or (Ants[i].x<0) or (Ants[i].y>h-1) or (Ants[i].y<0) then begin
Ants[i].x:=w div 2;
Ants[i].y:=h div 2;
end;
end else begin
if Ants[i].x>w-1 then Ants[i].x:=Ants[i].x-w+1;
if Ants[i].x<0 then Ants[i].x:=Ants[i].x+w-1;
if Ants[i].y>h-1 then Ants[i].y:=Ants[i].y-h+1;
if Ants[i].y<0 then Ants[i].y:=Ants[i].y+h-1;
end;
//Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),ARGBtoColorChannels(alpha_param,r,Ants[i].Gcolor,255));
if TrailKiller and (i = 1) then
Data.SetPixel(Round(Ants[i].x),Round(Ants[i].y),$FFFFFFFF);
end;
procedure TForm1.Button1Click(Sender: TObject);
var
bmp:TBitmap;
Data: TBitmapData;
begin
bmp:= BaseBitmap;
//Blur(nil,bmp,1);
//if Timer1.Tag = 1 then Blur(nil,bmp,2);
//Timer1.Tag := (Timer1.Tag+1)mod 2;
bmp.Map(TMapAccess.ReadWrite, Data);
Diffuse(Data,bmp.Width,bmp.Height);
//NUM_OF_AGENTS
TParallel.&For(1,NUM_OF_AGENTS,
procedure(i:Integer)
begin
AgentMove(i,Data,alpha_param,bmp.Width,bmp.Height);
end);
//if KillWeak then KillWeak:=false;
bmp.Unmap(Data);
Canvas.BeginScene();
Canvas.DrawBitmap(bmp,RectF(0,0,bmp.Width,bmp.Height),RectF(0,0,Canvas.Width,Canvas.Height),1);
if ShowInstructions then
Canvas.FillText(RectF(100,0,Canvas.Width,Canvas.Height), InstructionsText, false, 100, [],TTextAlign.Leading, TTextAlign.taCenter);
HintDraw(Canvas);
Canvas.EndScene;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
BaseBitmap.Free;
end;
procedure TForm1.StartPosition;
var
i:word;
begin
for i := 1 to NUM_OF_AGENTS do begin
// Ants[i].x:=Random(BaseBitmap.Width);
// Ants[i].y:=Random(BaseBitmap.Height);
Ants[i].direction:=i*2*pi/NUM_OF_AGENTS;
Ants[i].x:=BaseBitmap.width div 2+sin(Ants[i].direction)*20;
Ants[i].y:=BaseBitmap.height div 2+cos(Ants[i].direction)*20;
Ants[i].Gcolor:=Random(100)+50;
end;
BaseBitmap.Canvas.BeginScene;
BaseBitmap.Canvas.Clear($FF000000);
BaseBitmap.Canvas.EndScene;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
speed:=1.3;
settings_angle:=0.3;
alpha_param:=180;
stillmove:=true;
mode:=0;
respawn_mode:=true;
TrailKiller:=false;
KillWeak:=false;
BaseBitmap:=TBitmap.Create(Canvas.Width ,Canvas.Height );
StartPosition;
Canvas.Fill.Color := TAlphaColors.White;
InstructionsText:='Physarum polycephalum simulation'#10#13 +
'by Aleshkov A.F., https://github.com/AlfAleshkov/Physarum-simulation'#10#13 +
'Shortcut keys:'#10#13 +
'"m" or "0","1","2"... - change mode of sensor calculation'#10#13 +
'"p" - Pause'#10#13 +
'Space - Agents pause, trail diffusion continues'#10#13 +
'"+","-" - change agent angle'#10#13 +
'"z","x" - change agent transparency (alpha channel)'#10#13 +
'"r" - respawn mode: when reaching edges - die and respawn at center'#10#13 +
'"k" - Enable/Disable trail-killer, one of agent (white point) turns off agents sensors around him'#10#13 +
'"e" - Kill weak lonely agents'#10#13 +
'Left click - Clear trail map within 50px radius'#10#13+
'"F1" - show/hide this instructions';
ShowInstructions:=False;
ShowHint('Press F1 to view shortcuts keys');
end;
procedure TForm1.FormKeyDown(Sender: TObject; var Key: Word; var KeyChar: Char;
Shift: TShiftState);
begin
if Key = vkF1 then ShowInstructions:= not ShowInstructions;
if Key = vkReturn then begin
StartPosition;
end;
end;
procedure TForm1.FormKeyUp(Sender: TObject; var Key: Word; var KeyChar: Char;
Shift: TShiftState);
begin
if KeyChar = 'p' then Timer1.Enabled:= not Timer1.Enabled;
if KeyChar = 'x' then
alpha_param:=alpha_param+10;
if KeyChar = 'z' then
alpha_param:=alpha_param-10;
if KeyChar = ' ' then stillmove:=not stillmove;
if KeyChar = 'm' then begin
mode:=(mode+1) mod 4;
ShowHint('Mode No: '+IntToStr(mode));
end;
if KeyChar in ['0','1','2','3','4'] then begin
mode:=StrToInt(KeyChar);
ShowHint('Mode No: '+IntToStr(mode));
end;
if KeyChar = 'r' then begin
respawn_mode:= not respawn_mode;
if respawn_mode then
ShowHint('Respawn at center, ON') else ShowHint('Respawn mode OFF');
end;
if KeyChar = 'k' then begin
TrailKiller:= not TrailKiller;
if TrailKiller then
ShowHint('Trail-killer start hunting') else ShowHint('Trail-killer disabled');
end;
if KeyChar = 'e' then begin
KillWeak:=not KillWeak;
if KillWeak then
ShowHint('Weak agent execution') else ShowHint('Weak execution disabled');
end;
if KeyChar = '-' then begin
settings_angle:=settings_angle-0.02;
ShowHint('settings_angle: '+IntToStr(Round(settings_angle * 180/pi)));
end;
if KeyChar = '+' then begin
settings_angle:=settings_angle+0.02;
ShowHint('settings_angle: '+IntToStr(Round(settings_angle * 180/pi)));
end;
if KeyChar = 's' then SaveScreenshot(1,1);
if KeyChar = 'a' then MakeScreenshotTimer.Enabled:= not MakeScreenshotTimer.Enabled;
end;
procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Single);
var dx,dy:Integer;
begin
if Button = TMouseButton.mbLeft then begin
BaseBitmap.Canvas.BeginScene;
BaseBitmap.Canvas.Fill.Color:=$FF000000;
dx:=Round(BaseBitmap.Width*x/canvas.Width);
dy:=Round(BaseBitmap.Height*y/canvas.Height);
BaseBitmap.Canvas.FillEllipse(RectF(dx-50,dy-50,dx+50,dy+50),1);
BaseBitmap.Canvas.EndScene;
end;
end;
procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Single);
var dx,dy:Integer;
begin
if ssRight in Shift then begin
BaseBitmap.Canvas.BeginScene;
BaseBitmap.Canvas.Fill.Color:=$FFFF0000;
dx:=Round(BaseBitmap.Width*x/canvas.Width);
dy:=Round(BaseBitmap.Height*y/canvas.Height);
BaseBitmap.Canvas.FillEllipse(RectF(dx-10,dy-10,dx+10,dy+10),1);
BaseBitmap.Canvas.EndScene;
end;
end;
procedure TForm1.ShowHint(hint:string);
begin
Hint_StartTime:=Now;
Hint_Show:=true;
Hint_Text:=hint;
end;
procedure TForm1.HintDraw(canvas:TCanvas);
begin
if Hint_Show then begin
if SecondsBetween(Hint_StartTime, Now) < 2 then begin
Canvas.FillText(RectF(100,10,Canvas.Width,Canvas.Height), Hint_Text, false, 100,[],TTextAlign.Leading, TTextAlign.Leading);
end else Hint_Show:=false;
end;
end;
procedure TForm1.MakeScreenshotTimerTimer(Sender: TObject);
begin
SaveScreenshot(1,1,'Animation');
end;
procedure TForm1.SaveScreenshot(x_count,y_count:integer;prefix:string = 'Screenshot');
var
qlt:TBitmapCodecSaveParams;
i,j,w,h:integer;
bmp:TBitmap;
filename:string;
begin
ShowHint('Screenshot '+ExtractFilePath(ParamStr(0)));
qlt.Quality:=92;
if (x_count = 1) and (y_count = 1) then begin
i:=1;
filename:='';
while (FileExists(filename))or(i=1) do begin
filename:=ExtractFilePath(ParamStr(0))+prefix+Format('%.*d',[3, i])+'.jpg';
inc(i);
end;
BaseBitmap.SaveToFile(filename,@qlt);
exit;
end;
bmp:=TBitmap.Create(BaseBitmap.Width*x_count,BaseBitmap.Height*y_count);
w:=BaseBitmap.Width;
h:=BaseBitmap.Height;
bmp.Canvas.BeginScene;
for i := 0 to x_count-1 do
for j := 0 to y_count-1 do
bmp.Canvas.DrawBitmap(BaseBitmap,RectF(0,0,w,h),RectF(i*w,j*h,(i+1)*w,(j+1)*h),1);
bmp.Canvas.EndScene;
//BaseBitmap.SaveToFile(ExtractFilePath(ParamStr(0))+'Screenshot01.jpg',@qlt);
bmp.SaveToFile(ExtractFilePath(ParamStr(0))+'Texture01.jpg',@qlt);
bmp.Free
end;
end.