95a2f54683
git-svn-id: https://svn.code.sf.net/p/apophysis7x/svn/trunk@1 a5d1c0f9-a0e9-45c6-87dd-9d276e40c949
131 lines
3.9 KiB
ObjectPascal
131 lines
3.9 KiB
ObjectPascal
{
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Apophysis Copyright (C) 2001-2004 Mark Townsend
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Apophysis Copyright (C) 2005-2006 Ronald Hordijk, Piotr Borys, Peter Sdobnov
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Apophysis Copyright (C) 2007-2008 Piotr Borys, Peter Sdobnov
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Apophysis "3D hack" Copyright (C) 2007-2008 Peter Sdobnov
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Apophysis "7X" Copyright (C) 2009-2010 Georg Kiehne
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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}
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unit varLoonie;
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interface
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uses
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BaseVariation, XFormMan;
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type
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TVariationLoonie = class(TBaseVariation)
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private
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sqrvar: 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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function GetNrVariables: integer; override;
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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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function ResetVariable(const Name: string): boolean; override;
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procedure Prepare; 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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///////////////////////////////////////////////////////////////////////////////
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procedure TVariationLoonie.Prepare;
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begin
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sqrvar := VVAR * VVAR;
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end;
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procedure TVariationLoonie.CalcFunction;
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var r, r2 : double;
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begin
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r2 := sqr(FTx^) + sqr(FTy^);
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if (r2 < (sqrvar)) and (r2 <> 0) then
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begin
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r := VVAR * sqrt((sqrvar) / r2 - 1.0);
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FPx^ := FPx^ + r * FTx^;
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FPy^ := FPy^ + r * FTy^;
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end else begin
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FPx^ := FPx^ + VVAR * FTx^;
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FPy^ := FPy^ + VVAR * FTy^;
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end;
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FPz^ := FPz^ + vvar * FTz^;
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end;
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///////////////////////////////////////////////////////////////////////////////
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constructor TVariationLoonie.Create;
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begin
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sqrvar := 0;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationLoonie.GetInstance: TBaseVariation;
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begin
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Result := TVariationLoonie.Create;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationLoonie.GetName: string;
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begin
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Result := 'loonie';
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationLoonie.GetVariableNameAt(const Index: integer): string;
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begin
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Result := '';
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationLoonie.SetVariable(const Name: string; var value: double): boolean;
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var temp: double;
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begin
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Result := False;
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end;
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function TVariationLoonie.ResetVariable(const Name: string): boolean;
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begin
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Result := False;
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationLoonie.GetNrVariables: integer;
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begin
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Result := 0
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationLoonie.GetVariable(const Name: string; var value: double): boolean;
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begin
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Result := False;
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end;
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///////////////////////////////////////////////////////////////////////////////
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initialization
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RegisterVariation(TVariationClassLoader.Create(TVariationLoonie), true, false);
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end. |