95a2f54683
git-svn-id: https://svn.code.sf.net/p/apophysis7x/svn/trunk@1 a5d1c0f9-a0e9-45c6-87dd-9d276e40c949
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
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Apophysis Plugin
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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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typedef struct
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{
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double wavesn_freqx, wavesn_freqy;
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double wavesn_scalex, wavesn_scaley;
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double wavesn_incx, wavesn_incy;
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int wavesn_power;
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int absN;
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double cN;
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} Variables;
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#include "apoplugin.h"
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APO_PLUGIN("wavesn");
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APO_VARIABLES(
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VAR_REAL(wavesn_freqx, 2.0), VAR_REAL(wavesn_freqy, 2.0),
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VAR_REAL(wavesn_scalex, 1.0), VAR_REAL(wavesn_scaley, 1.0),
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VAR_REAL(wavesn_incx, 0.0), VAR_REAL(wavesn_incy, 0.0),
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VAR_INTEGER_NONZERO(wavesn_power, 1.0)
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);
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int PluginVarPrepare(Variation* vp)
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{
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VAR(absN) = (int)abs(VAR(wavesn_power));
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if (VAR(wavesn_power) == 0) VAR(wavesn_power) = 2;
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VAR(cN) = 1.0 / VAR(wavesn_power) / 2;
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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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double angle = (atan2(FTy, FTx) + M_2PI * (rand() % (int)VAR(absN)))/ VAR(wavesn_power);
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double r = VVAR * pow(sqr(FTx) + sqr(FTy), VAR(cN));
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double sina = 0, cosa = 0;
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fsincos(angle, &sina, &cosa);
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double xn = r * cosa;
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double yn = r * sina;
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double siny = sin(VAR(wavesn_freqx) * yn); double sinx = sin(VAR(wavesn_freqy) * xn);
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double dx = xn + 0.5 * (VAR(wavesn_scalex) * siny + fabs(xn) * VAR(wavesn_incx) * siny);
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double dy = yn + 0.5 * (VAR(wavesn_scaley) * sinx + fabs(yn) * VAR(wavesn_incy) * sinx);
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FPx += VVAR * dx;
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FPy += VVAR * dy;
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return TRUE;
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}
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