com.jme3.terrain.noise.basis.Noise Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jme3-terrain Show documentation
jMonkeyEngine is a 3-D game engine for adventurous Java developers
There is a newer version: 3.7.0-stable
/*
 * 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 com.jme3.terrain.noise.Basis;
import com.jme3.terrain.noise.modulator.Modulator;
import com.jme3.terrain.noise.modulator.NoiseModulator;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.List;

/**
 * Utility base class for Noise implementations
 * 
 * @author Anthyon
 * 
 */
public abstract class Noise implements Basis {

    protected List modulators = new ArrayList<>();

    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;
    }
}