ImageLayer.java

package amidst.map;

import java.awt.geom.AffineTransform;

import amidst.logging.Log;

public abstract class ImageLayer extends Layer {
	protected float alpha = 1.0f;
	protected double scale;
	protected int size;
	private AffineTransform cachedScalingMatrix = new AffineTransform();
	protected int layerId;
	
	private int[] defaultData;
	
	public ImageLayer(int size) {
		this.size = size;
		defaultData = new int[size*size];
		scale = Fragment.SIZE/(double)size;
		for (int i = 0; i < defaultData.length; i++)
			defaultData[i] = 0x00000000;
	}
	
	public int[] getDefaultData() {
		return defaultData;
	}
	
	public void load(Fragment frag) {
		drawToCache(frag);
	}
	
	public AffineTransform getMatrix(AffineTransform inMat) {
		cachedScalingMatrix.setTransform(inMat);
		return cachedScalingMatrix;
	}
	public AffineTransform getScaledMatrix(AffineTransform inMat) {
		cachedScalingMatrix.setTransform(inMat);
		cachedScalingMatrix.scale(scale, scale);
		return cachedScalingMatrix;
	}
	
	public float getAlpha() {
		return alpha;
	}
	public int getLayerId() {
		return layerId;
	}
	public void setLayerId(int id) {
		layerId = id;
	}
	public abstract void drawToCache(Fragment fragment);
}