105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
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/*
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Apophysis Plugin
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Copyright (C) 2007-2009 Joel Faber
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Copyright (C) 2007-2009 Michael Faber
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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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// Must define this structure before we include apoplugin.h
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typedef struct
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{
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double boarders2_c;
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double boarders2_left;
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double boarders2_right;
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double c, cl, cr;
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} Variables;
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#include "apoplugin.h"
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APO_PLUGIN("boarders2");
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APO_VARIABLES(
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VAR_REAL(boarders2_c, 0.5),
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VAR_REAL(boarders2_left, 0.5),
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VAR_REAL(boarders2_right, 0.5),
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);
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inline double rint(double x)
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{
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int temp; temp = (x >= 0. ? (int)(x + 0.5) : (int)(x - 0.5));
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return (double)temp;
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}
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int PluginVarPrepare(Variation* vp)
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{
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double c = fabs(VAR(boarders2_c)),
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cl = fabs(VAR(boarders2_left)),
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cr = fabs(VAR(boarders2_right));
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c = c==0?EPS:c; cl = cl==0?EPS:cl; cr = cr==0?EPS:cr;
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VAR(c) = c; VAR(cl) = c*cl; VAR(cr) = c+(c*cr);
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return TRUE;
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}
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int PluginVarCalc(Variation* vp)
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{
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const double c = vp->var.c;
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const double cl = vp->var.cl;
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const double cr = vp->var.cr;
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double roundX, roundY, offsetX, offsetY;
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roundX = rint(FTx);
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roundY = rint(FTy);
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offsetX = FTx - roundX;
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offsetY = FTy - roundY;
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if(random01() >= cr)
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{
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FPx += VVAR*(offsetX*c + roundX);
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FPy += VVAR*(offsetY*c + roundY);
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}
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else
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{
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if(fabs(offsetX) >= fabs(offsetY))
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{
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if(offsetX >= 0.0)
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{
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FPx += VVAR*(offsetX*c + roundX + cl);
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FPy += VVAR*(offsetY*c + roundY + cl * offsetY / offsetX);
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}
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else
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{
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FPx += VVAR*(offsetX*c + roundX - cl);
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FPy += VVAR*(offsetY*c + roundY - cl * offsetY / offsetX);
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}
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}
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else
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{
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if(offsetY >= 0.0)
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{
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FPy += VVAR*(offsetY*c + roundY + cl);
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FPx += VVAR*(offsetX*c + roundX + offsetX/offsetY*cl);
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}
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else
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{
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FPy += VVAR*(offsetY*c + roundY - cl);
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FPx += VVAR*(offsetX*c + roundX - offsetX/offsetY*cl);
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}
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}
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}
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return TRUE;
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}
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