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/**
* Copyright (c) 2011, Novyon Events
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @author Anthyon
*/
package com.jme3.terrain.noise.basis;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.List;
import com.jme3.terrain.noise.Basis;
import com.jme3.terrain.noise.modulator.Modulator;
import com.jme3.terrain.noise.modulator.NoiseModulator;
/**
* Utility base class for Noise implementations
*
* @author Anthyon
*
*/
public abstract class Noise implements Basis {
protected List<Modulator> modulators = new ArrayList<Modulator>();
protected float scale = 1.0f;
@Override
public String toString() {
return this.getClass().getSimpleName();
}
@Override
public FloatBuffer getBuffer(float sx, float sy, float base, int size) {
FloatBuffer retval = FloatBuffer.allocate(size * size);
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
retval.put(this.modulate((sx + x) / size, (sy + y) / size, base));
}
}
return retval;
}
public float modulate(float x, float y, float z) {
float retval = this.value(x, y, z);
for (Modulator m : this.modulators) {
if (m instanceof NoiseModulator) {
retval = m.value(retval);
}
}
return retval;
}
@Override
public Basis addModulator(Modulator modulator) {
this.modulators.add(modulator);
return this;
}
@Override
public Basis setScale(float scale) {
this.scale = scale;
return this;
}
@Override
public float getScale() {
return this.scale;
}
}
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