gamepanel.java

一个简单的贪吃蛇游戏

package cn.edu.usc.snake.view;

import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JPanel;

import cn.edu.usc.snake.entities.Food;
import cn.edu.usc.snake.entities.Ground;
import cn.edu.usc.snake.entities.Snake;
import cn.edu.usc.snake.util.ConstValue;

public class GamePanel extends JPanel{

	private Snake snake;
	private Food food;
	private Ground ground;
	
	public GamePanel() {
		this.setSize(ConstValue.PANEL_WIDTH * ConstValue.CELL_WIDTH,
				ConstValue.PANEL_HEIGHT * ConstValue.CELL_HEIGHT);
	}
	
	public void display(Snake snake, Food food, Ground ground) {
		this.snake = snake;
		this.food = food;
		this.ground = ground;
		this.repaint();
	}

	@Override
	protected void paintComponent(Graphics g) {
		Color c = g.getColor();
		g.setColor(Color.BLACK);
		g.fillRect(0, 0, this.getSize().width, this.getSize().height);
		if(null != snake) {
			g.setColor(Color.RED);
			g.drawString("Score: " + ConstValue.SCORE_PER_FOOD * snake.getEatFoodCount()
					+ "/" + snake.getEatFoodCount(), 20, 50);
		}
		g.setColor(c);
		if(null != snake && null != food && null != ground){
			snake.drawMe(g);
			food.drawMe(g);
			ground.drawMe(g);
		}
	}
	
	
}