62 lines
1.1 KiB
ObjectPascal
62 lines
1.1 KiB
ObjectPascal
{ Apophysis AV "Phoenix Edition" Copyright (C) 2021 Alice V. Koryagina }
|
|
|
|
unit varHeart;
|
|
|
|
interface
|
|
uses
|
|
BaseVariation, XFormMan;
|
|
|
|
type
|
|
TVariationHeart = class(TBaseVariation)
|
|
private
|
|
|
|
public
|
|
constructor Create;
|
|
|
|
class function GetName: string; override;
|
|
class function GetInstance: TBaseVariation; override;
|
|
|
|
procedure CalcFunction; override;
|
|
end;
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
Math;
|
|
|
|
////////////////////////
|
|
|
|
procedure TVariationHeart.CalcFunction;
|
|
var
|
|
FAngle, r, sinr, cosr: double;
|
|
begin
|
|
FAngle := arctan2(FTx^, FTy^);
|
|
r := sqrt(sqr(FTx^) + sqr(FTy^));
|
|
Sincos(r * FAngle, sinr, cosr);
|
|
r := r * vvar;
|
|
FPx^ := FPx^ + r * sinr;
|
|
FPy^ := FPy^ - r * cosr;
|
|
end;
|
|
|
|
constructor TVariationHeart.Create;
|
|
begin
|
|
inherited Create;
|
|
end;
|
|
|
|
class function TVariationHeart.GetInstance: TBaseVariation;
|
|
begin
|
|
Result := TVariationHeart.Create;
|
|
end;
|
|
|
|
class function TVariationHeart.GetName: string;
|
|
begin
|
|
Result := 'heart';
|
|
end;
|
|
|
|
//////////////////////////////
|
|
initialization
|
|
RegisterVariation(TVariationClassLoader.Create(TVariationHeart), false, false);
|
|
|
|
end.
|