fruit.java

来自「一款修改过的手机贪食蛇游戏」· Java 代码 · 共 67 行

/*
 * Fruit.java
 *
 * Created on June 19, 2007, 2:34 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package hello;

import java.util.Random;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;


/**
 *
 * @author jiabei
 */
public class Fruit {
    
    private Point point;
    public Fruit(int x, int y) {
        point = new Point(x, y);
    }
 
    
    /** Creates a new instance of Fruit */
    private static Random random = new Random();
    
    public static int getRandomInt(int min, int max) {
        return Math.abs(random.nextInt()) % (max + 1 - min) + min;
    }
    
    public static Fruit getRandomFruit(Map map) {
        boolean run = true;
        Point tmpPoint = new Point(0, 0);
        while (run) {
            tmpPoint.setX(getRandomInt(0, map.getWidth()));
            tmpPoint.setY(getRandomInt(0, map.getHeight()));
            run = false;
            for (int i = 0; i < map.getSnakeNum(); i ++) {
                if (map.getCurSnake(i).isInside(tmpPoint) >= 0) {
                    run = true; break;
                }
            }
            for (int i = 0; i < map.getFruitNum(); i ++) {
                if (map.getFruit(i).getPoint().isSame(tmpPoint)) {
                    run =true; break;
                }
            }
        }
        return new Fruit(tmpPoint.getX(), tmpPoint.getY());
    }
    
    public void drawFruit(Graphics g, int xPixels, int yPixels) {        
        g.setColor(0, 100, 0);
        g.drawRect(xPixels * point.getX(), yPixels * point.getY(), xPixels, yPixels);       
    }
    
    public Point getPoint() {
        return point;
    }
    
}