/* Copyright (C) 2011 Garrett Fleenor
This library 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 3.0 of the License, or (at
your option) any later version.
This library 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 (COPYING.txt) for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
This is a port of libnoise ( http://libnoise.sourceforge.net/index.html ). Original implementation by Jason Bevins
*/
package net.royawesome.jlibnoise.module.modifier;
import net.royawesome.jlibnoise.exception.NoModuleException;
import net.royawesome.jlibnoise.module.Module;
public class ScaleBias extends Module {
/// Default bias for the noise::module::ScaleBias noise module.
public static final double DEFAULT_BIAS = 0.0;
/// Default scale for the noise::module::ScaleBias noise module.
public static final double DEFAULT_SCALE = 1.0;
/// Bias to apply to the scaled output value from the source module.
double bias = DEFAULT_BIAS;
/// Scaling factor to apply to the output value from the source
/// module.
double scale = DEFAULT_SCALE;
public ScaleBias() {
super(1);
}
public double getBias() {
return bias;
}
public void setBias(double bias) {
this.bias = bias;
}
public double getScale() {
return scale;
}
public void setScale(double scale) {
this.scale = scale;
}
@Override
public int GetSourceModuleCount() {
return 1;
}
@Override
public double GetValue(double x, double y, double z) {
if (SourceModule[0] == null)
throw new NoModuleException();
return SourceModule[0].GetValue(x, y, z) * scale + bias;
}
}