package edu.trinity.cs.gamecore.basic;
import java.awt.image.*;
import java.awt.*;

import edu.trinity.cs.gamecore.Block;
import edu.trinity.cs.gamecore.Location;

/**
 * <p>This is a basic implementation of the Block interface.  Starting with assignment 2
 * you will create your own implementations of Block and this won't be used.  Notice the
 * generic structure.</p>
 * 
 * <p>The Image is static because all the blocks share the same image.  If you have different
 * images for your blocks then this shouldn't be static.  The Image is transient because
 * images can't be saved through serialization which will cause problems if you use the
 * ScreenEditor.</p>
 * 
 * @author Mark Lewis
 */
public class BasicBlock implements Block<BasicBlock,BasicEntity> {
    public BasicBlock() {
    }

    public Image getImage(){
        if(img==null) {
	        img=new BufferedImage(30,30,BufferedImage.TYPE_INT_RGB);
        	Graphics g=img.getGraphics();
    	    g.setColor(Color.lightGray);
			g.fillRect(0,0,30,30);
    	    g.setColor(Color.red);
			g.fillRect(0,0,10,10);
        }
        return img;
    }

    public Container getEditPropertiesPanel(){ return null; }

    public Location<BasicBlock,BasicEntity> getLinkLocation(){ return link; }

    public void setLinkLocation(Location<BasicBlock,BasicEntity> linkLocation){
        link=linkLocation;
    }

    private Location<BasicBlock,BasicEntity> link = null;

    /** As noted above:
     *
     * The Image is static because all the blocks share the same image.  If you
     * have different images for your blocks then this shouldn't be static.  
     * Image is transient because images can't be saved through serialization
     * which will cause problems if you use the ScreenEditor.
     */
    private static transient Image img=null;
    
    /** To make serialization work well (which is needed if you use the
     * ScreenEditor), every class you write should have a variable
     * serialVersionUID defined like this one.  The exact value is not
     * important; all that's important is that it be different for
     * every class you write.
     */
    private static final long serialVersionUID=457609283376092346l;
}