MapImage.java

import java.awt.Color;
import java.awt.image.BufferedImage;
import org.bukkit.map.MapCanvas;

/**
 *
 * @author ECB2 (ECB2.biz)
 *
 */

public class MapImage {

private byte tag[];

    public MapImage(byte tag[])
    {
        this.tag = tag;
    }

    public MapImage(BufferedImage image)
    {
        this.tag = this.convertImage(image);
    }

    public byte getColor(int x, int y)
    {
        return tag[x + y * 128];
    }

    public void draw(MapCanvas canvas)
    {
        for(int x = 0; x < 128; x++)
        {
            for(int y = 0; y < 128; y++)
            {
                canvas.setPixel(x, y, this.getColor(x, y));
            }
        }
    }

    private byte[] convertImage(BufferedImage bi)
    {
        byte[] colorsArray = new byte[128*128];
        try{
            for(int x = 0; x < 128; x++)
            {
                for(int y = 0; y < 128; y++){
                    byte c = (byte)ColorUtil.findId(new Color(bi.getRGB(x, y)));
                    if(c==0||c==1||c==2||c==3) c = (byte)119;
                    colorsArray[x + y * 128] = c;
                }
            }
        }catch(Exception ex){
            ex.printStackTrace();
        }
        return colorsArray;
    }

}