import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Face extends JComponent {
	public static final int SIZE = 26;
	public static final int HAPPY_INDEX = 0;
	public static final int SHOCKED_INDEX = 1;
	public static final int DEAD_INDEX = 2;
	public static final int COOL_INDEX = 3;
	public static final int PRESSED_INDEX = 4;

	private final Canvas GAME_CANVAS;
	private final Image[] FACES;
	private int face;
	private int unpressedFace;
	private boolean pressed;
	private boolean mouseOver;

	public Face(Canvas gameCanvas, Image[] faces) {
		FACES = faces;
		GAME_CANVAS = gameCanvas;
		face = HAPPY_INDEX;
		pressed = false;
		mouseOver = false;
		setPreferredSize(new Dimension(SIZE, SIZE));
		addMouseListener(new MouseListener() {
			@Override
			public void mousePressed(MouseEvent e) {
				pressed = true;
				unpressedFace = face;
				setFace(PRESSED_INDEX);
			}

			@Override
			public void mouseReleased(MouseEvent e) {
				pressed = false;
				if (mouseOver) {
					setFace(HAPPY_INDEX);
					GAME_CANVAS.restart();
				}
			}

			@Override
			public void mouseEntered(MouseEvent e) {
				mouseOver = true;
				if (pressed)
					setFace(PRESSED_INDEX);
			}

			@Override
			public void mouseExited(MouseEvent e) {
				mouseOver = false;
				if (pressed)
					setFace(unpressedFace);
			}

			@Override
			public void mouseClicked(MouseEvent e) {
			}
		});
	}

	public void setFace(int face) {
		this.face = face;
		repaint();
	}

	@Override
	public void paintComponent(Graphics g) {
		g.drawImage(FACES[face], 0, 0, this);
	}
}