/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2011 Andreas Maschke
This is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This software 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this software;
if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jwildfire.create.tina.variation;
import java.util.Random;
import org.jwildfire.base.Tools;
import org.jwildfire.create.tina.base.Layer;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class PreStabilizeFunc extends VariationFunc {
private static final long serialVersionUID = 1L;
private static final String PARAM_N = "n";
private static final String PARAM_SEED = "seed";
private static final String PARAM_P = "p";
private static final String PARAM_DC = "dc";
private static final String[] paramNames = { PARAM_N, PARAM_SEED, PARAM_P, PARAM_DC };
private int n = 4;
private int seed = (int) (Math.random() * 100000);
private double p = 0.1;
private int dc = 0;
private Random rand = new Random();
private double[] x, y, c;
private boolean start = true;
private double nextColor, colorDelta;
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
// pre_stabilize by Rick Sidwell, works as glitch repellent
if (start || pContext.random() < p / 1000) {
start = false;
int i = pContext.random(n);
pAffineTP.x = x[i];
pAffineTP.y = y[i];
pAffineTP.z = 0;
if (dc != 0) pAffineTP.color = c[i];
}
}
@Override
public String[] getParameterNames() {
return paramNames;
}
@Override
public Object[] getParameterValues() {
return new Object[] { n, seed, p, dc };
}
@Override
public void setParameter(String pName, double pValue) {
if (PARAM_N.equalsIgnoreCase(pName))
n = Tools.FTOI(pValue);
else if (PARAM_SEED.equalsIgnoreCase(pName))
seed = Tools.FTOI(pValue);
else if (PARAM_P.equalsIgnoreCase(pName))
p = pValue;
else if (PARAM_DC.equalsIgnoreCase(pName))
dc = limitIntVal(Tools.FTOI(pValue), 0, 1);
else
throw new IllegalArgumentException(pName);
}
@Override
public String getName() {
return "pre_stabilize";
}
@Override
public void init(FlameTransformationContext pContext, Layer pLayer, XForm pXForm, double pAmount) {
if (n < 1)
n = 1;
x = new double[n];
y = new double[n];
c = new double[n];
rand.setSeed(seed);
nextColor = 0.5;
colorDelta = 1.0;
for (int i = 0; i < n; i++) {
x[i] = rand.nextDouble() * 2 - 1;
y[i] = rand.nextDouble() * 2 - 1;
c[i] = nextColor;
nextColor += colorDelta;
if (nextColor >= 1) {
colorDelta /= 2;
nextColor = colorDelta / 2;
}
}
start = true;
}
@Override
public int getPriority() {
return -1;
}
}
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