155 lines
3.7 KiB
ObjectPascal
155 lines
3.7 KiB
ObjectPascal
unit varPDJ;
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interface
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uses
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BaseVariation, XFormMan;
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{$define _ASM_}
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type
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TVariationPDJ = class(TBaseVariation)
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private
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FA,FB,FC,FD: double;
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public
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constructor Create;
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class function GetName: string; override;
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class function GetInstance: TBaseVariation; override;
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class function GetNrVariables: integer; override;
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class function GetVariableNameAt(const Index: integer): string; override;
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function SetVariable(const Name: string; var value: double): boolean; override;
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function GetVariable(const Name: string; var value: double): boolean; override;
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procedure CalcFunction; override;
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end;
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implementation
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uses
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Math;
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{ TVariationPDJ }
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///////////////////////////////////////////////////////////////////////////////
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procedure TVariationPDJ.CalcFunction;
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{$ifndef _ASM_}
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begin
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FPx^ := FPx^ + vvar * (sin(FA * FTy^) - cos(FB * FTx^));
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FPy^ := FPy^ + vvar * (sin(FC * FTx^) - cos(FD * FTy^));
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{$else}
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asm
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fld qword ptr [eax + vvar]
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mov edx, [eax + FTx]
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fld qword ptr [edx + 8] // FTy
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fld qword ptr [edx] // FTx
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fld st(1)
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fmul qword ptr [eax + Fa]
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fsin
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fld st(1)
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fmul qword ptr [eax + Fb]
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fcos
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fsubp st(1), st
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fmul st, st(3)
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fadd qword ptr [edx + 16] // FPx
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fstp qword ptr [edx + 16]
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fmul qword ptr [eax + Fc]
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fsin
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fxch st(1)
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fmul qword ptr [eax + Fd]
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fcos
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fsubp st(1), st
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fmulp
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fadd qword ptr [edx + 24] // FPy
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fstp qword ptr [edx + 24]
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{$endif}
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end;
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///////////////////////////////////////////////////////////////////////////////
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constructor TVariationPDJ.Create;
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begin
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FA := 6 * Random - 3;
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FB := 6 * Random - 3;
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FC := 6 * Random - 3;
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FD := 6 * Random - 3;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPDJ.GetInstance: TBaseVariation;
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begin
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Result := TVariationPDJ.Create;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPDJ.GetName: string;
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begin
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Result := 'pdj';
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPDJ.GetVariableNameAt(const Index: integer): string;
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begin
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case Index Of
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0: Result := 'pdj_a';
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1: Result := 'pdj_b';
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2: Result := 'pdj_c';
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3: Result := 'pdj_d';
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else
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Result := '';
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPDJ.SetVariable(const Name: string; var value: double): boolean;
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begin
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Result := False;
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if Name = 'pdj_a' then begin
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FA := Value;
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Result := True;
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end else if Name = 'pdj_b' then begin
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FB := Value;
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Result := True;
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end else if Name = 'pdj_c' then begin
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FC := Value;
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Result := True;
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end else if Name = 'pdj_d' then begin
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FD := Value;
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Result := True;
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPDJ.GetNrVariables: integer;
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begin
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Result := 4
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPDJ.GetVariable(const Name: string; var value: double): boolean;
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begin
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Result := False;
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if Name = 'pdj_a' then begin
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Value := FA;
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Result := True;
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end else if Name = 'pdj_b' then begin
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Value := FB;
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Result := True;
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end else if Name = 'pdj_c' then begin
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Value := FC;
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Result := True;
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end else if Name = 'pdj_d' then begin
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Value := FD;
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Result := True;
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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initialization
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RegisterVariation(TVariationPDJ);
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end.
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