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Diff of /trunk/Variations/varSeparation.pas [000000] .. [r1] Maximize Restore

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+++ b/trunk/Variations/varSeparation.pas
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+{
+     Apophysis Copyright (C) 2001-2004 Mark Townsend
+     Apophysis Copyright (C) 2005-2006 Ronald Hordijk, Piotr Borys, Peter Sdobnov
+     Apophysis Copyright (C) 2007-2008 Piotr Borys, Peter Sdobnov
+     
+     Apophysis "3D hack" Copyright (C) 2007-2008 Peter Sdobnov
+     Apophysis "7X" Copyright (C) 2009-2010 Georg Kiehne
+
+     This program is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published by
+     the Free Software Foundation; either version 2 of the License, or
+     (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+     GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with this program; if not, write to the Free Software
+     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+}
+
+unit varSeparation;
+
+interface
+
+uses
+  BaseVariation, XFormMan;
+
+type
+  TVariationSeparation = class(TBaseVariation)
+  private
+    separation_x, separation_y: double;
+    separation_xinside, separation_yinside: double;
+  public
+    constructor Create;
+
+    class function GetName: string; override;
+    class function GetInstance: TBaseVariation; override;
+
+    function GetNrVariables: integer; override;
+    function GetVariableNameAt(const Index: integer): string; override;
+
+    function SetVariable(const Name: string; var value: double): boolean; override;
+    function GetVariable(const Name: string; var value: double): boolean; override;
+    function ResetVariable(const Name: string): boolean; override;
+
+	  procedure Prepare; override;
+    procedure CalcFunction; override;
+  end;
+
+implementation
+
+uses
+  Math;
+
+///////////////////////////////////////////////////////////////////////////////
+procedure TVariationSeparation.Prepare;
+begin
+end;
+
+procedure TVariationSeparation.CalcFunction;
+begin
+  if(FTx^ > 0.0) then
+		FPx^ := FPx^ + VVAR * (sqrt(sqr(FTx^) + sqr(separation_x))- FTx^ * (separation_xinside))
+	else
+		FPx^ := FPx^ - VVAR * (sqrt(sqr(FTx^) + sqr(separation_x))+ FTx^ * (separation_xinside)) ;
+	if(FTy^ > 0.0) then
+		FPy^ := FPy^ + VVAR * (sqrt(sqr(FTy^) + sqr(separation_y))- FTy^ * (separation_yinside))
+	else
+		FPy^ := FPy^ - VVAR * (sqrt(sqr(FTy^) + sqr(separation_y))+ FTy^ * (separation_yinside)) ;
+
+  FPz^ := FPz^ + vvar * FTz^;
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+constructor TVariationSeparation.Create;
+begin
+  separation_x := 1;
+  separation_y := 1;
+  separation_xinside := 0;
+  separation_yinside := 0;
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+class function TVariationSeparation.GetInstance: TBaseVariation;
+begin
+  Result := TVariationSeparation.Create;
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+class function TVariationSeparation.GetName: string;
+begin
+  Result := 'separation';
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+function TVariationSeparation.GetVariableNameAt(const Index: integer): string;
+begin
+  case Index Of
+  0: Result := 'separation_x';
+  1: Result := 'separation_y';
+  2: Result := 'separation_xinside';
+  3: Result := 'separation_yinside';
+  else
+    Result := '';
+  end
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+function TVariationSeparation.SetVariable(const Name: string; var value: double): boolean;
+begin
+  Result := False;
+  if Name = 'separation_x' then begin
+    separation_x := Value;
+    Result := True;
+  end else if Name = 'separation_y' then begin
+    separation_y := Value;
+    Result := True;
+  end else if Name = 'separation_xinside' then begin
+    separation_xinside := Value;
+    Result := True;
+  end else if Name = 'separation_yinside' then begin
+    separation_yinside := Value;
+    Result := True;
+  end 
+end;
+function TVariationSeparation.ResetVariable(const Name: string): boolean;
+begin
+  Result := False;
+  if Name = 'separation_x' then begin
+    separation_x := 1;
+    Result := True;
+  end else if Name = 'separation_y' then begin
+    separation_y := 1;
+    Result := True;
+  end else if Name = 'separation_xinside' then begin
+    separation_xinside := 0;
+    Result := True;
+  end else if Name = 'separation_yinside' then begin
+    separation_yinside := 0;
+    Result := True;
+  end;
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+function TVariationSeparation.GetNrVariables: integer;
+begin
+  Result := 4
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+function TVariationSeparation.GetVariable(const Name: string; var value: double): boolean;
+begin
+  Result := False;
+  if Name = 'separation_x' then begin
+    Value := separation_x;
+    Result := True;
+  end else if Name = 'separation_y' then begin
+    Value := separation_y;
+    Result := True;
+  end else if Name = 'separation_xinside' then begin
+    Value := separation_xinside;
+    Result := True;
+  end else if Name = 'separation_yinside' then begin
+    Value := separation_yinside;
+    Result := True;
+  end
+end;
+
+///////////////////////////////////////////////////////////////////////////////
+initialization
+  RegisterVariation(TVariationClassLoader.Create(TVariationSeparation), true, false);
+end.