/*
 * Created on 13.09.2004
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package TUGLaby;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.util.HashMap;

import javax.swing.JPanel;

/**
 * @author user
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class DirectionChoosePanel extends JPanel {
    private HashMap brick_images_;

    /**
     *  
     */
    private Image current_image_;

    private int internal_state_;

    public final static int UP = 1;

    public final static int RIGHT = 2;

    public final static int DOWN = 3;

    public final static int LEFT = 4;

    public final static int STATE_COUNT = 4;

    public DirectionChoosePanel(HashMap brick_images) {
        super();
        // TODO Auto-generated constructor stub
        brick_images_ = brick_images;
        internal_state_ = UP;
        current_image_ = (Image) brick_images_.get("ARROW_UP");
        initMouseListener();
    }

    public DirectionChoosePanel(HashMap brick_images, int init_state) {
        super();
        // TODO Auto-generated constructor stub
        brick_images_ = brick_images;
        setInternalState(init_state);

        initMouseListener();
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        g.drawImage(current_image_, 0, 0, this);

    }

    private void setInternalState(int new_state) {

        if ((new_state >= UP) && (new_state <= LEFT))
            internal_state_ = new_state;
        paintState();
    }

    public int getInternalState() {
        return internal_state_;
    }

    private void paintState() {
        switch (internal_state_) {
        case UP:
            current_image_ = (Image) brick_images_.get("ARROW_UP");
            break;
        case RIGHT:
            current_image_ = (Image) brick_images_.get("ARROW_RIGHT");
            break;
        case DOWN:
            current_image_ = (Image) brick_images_.get("ARROW_DOWN");
            break;
        case LEFT:
            current_image_ = (Image) brick_images_.get("ARROW_LEFT");
            break;
        }
        DirectionChoosePanel.this.repaint();
    }

    private void initMouseListener() {
        this.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                internal_state_ = ((internal_state_++) % STATE_COUNT) + 1;
                //System.out.println("Internal State: "+internal_state_ );
                paintState();
            }
        });
    }
}