ShelvingHeightMap.java

package org.pepsoft.worldpainter.heightMaps;

import org.pepsoft.util.IconUtils;
import org.pepsoft.worldpainter.HeightMap;

import javax.swing.*;

/**
 * Created by pepijn on 28-3-16.
 */
public class ShelvingHeightMap extends DelegatingHeightMap {
    public ShelvingHeightMap(HeightMap baseHeightMap) {
        super("baseHeightMap");
        setHeightMap(0, baseHeightMap);
    }

    public int getShelveHeight() {
        return shelveHeight;
    }

    public void setShelveHeight(int shelveHeight) {
        this.shelveHeight = shelveHeight;
    }

    public int getShelveStrength() {
        return shelveStrength;
    }

    public void setShelveStrength(int shelveStrength) {
        this.shelveStrength = shelveStrength;
    }

    // HeightMap

    @Override
    public float doGetHeight(float x, float y) {
        float value = children[0].getHeight(x, y);
        return (float) (value - Math.sin(value * DOUBLE_PI / shelveHeight) * shelveStrength);
    }

    @Override
    public Icon getIcon() {
        return ICON_SHELVING_HEIGHTMAP;
    }

    @Override
    public float[] getRange() {
        float[] range0 = children[0].getRange();
        return new float[] {(float) (range0[1] - Math.sin(range0[1] * DOUBLE_PI / shelveHeight) * shelveStrength)};
    }

    private int shelveHeight = 32, shelveStrength = 8;

    private static final long serialVersionUID = 1L;
    private static final double DOUBLE_PI = Math.PI * 2;
    private static final Icon ICON_SHELVING_HEIGHTMAP = IconUtils.loadScaledIcon("org/pepsoft/worldpainter/icons/shelving.png");
}