首页手记贪吃蛇简易版（第一次做）

贪吃蛇简易版（第一次做）

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Java

整体代码比较简单适合ｊａｖａ新手的练习代码，只有５个类

项目结构

ＮＵＭ这个类可以设置食物和蛇的大小
public class NUM {

static int width=15;//蛇食物的宽度

static int height=15;//蛇食物的高度
}
如果将１５换成３０
１５是这样

３０是这样

Ｓｎａｋｅ类是蛇类，定义蛇的属性及状态

蛇类中最重要的方法就是鼠标监听事件控制蛇的行动

/**
 * 蛇的移动
 * @param e键盘事件
 */
public void move(int e, Point point){
	switch(e){
	case KeyEvent.VK_LEFT:
		if (!snakeRIGHT) {
			snakeUP=false;
			snakeDOWN=false;
			snakeLEFT=true;
			snakeRIGHT=false;
			Point pl = new Point(snakePoint.get(0).x-1,snakePoint.get(0).y);
			snakePoint.add(0, pl);
			if(!isEat(point)){
				snakePoint.remove(snakeLength);
			}else{
				snakeLength++;
			}
		}
		break;
	case KeyEvent.VK_RIGHT:
		if (!snakeLEFT) {
			snakeUP=false;
			snakeDOWN=false;
			snakeLEFT=false;
			snakeRIGHT=true;
			Point pr = new Point(snakePoint.get(0).x+ 1,snakePoint.get(0).y);
			snakePoint.add(0, pr);
			if(!isEat(point)){
				snakePoint.remove(snakeLength);
			}else{
				snakeLength++;
			}
		}
		break;
	case KeyEvent.VK_UP:
		if (!snakeDOWN) {
			snakeUP=true;
			snakeDOWN=false;
			snakeLEFT=false;
			snakeRIGHT=false;
			Point pu = new Point(snakePoint.get(0).x,snakePoint.get(0).y - 1);
			snakePoint.add(0, pu);
			if(!isEat(point)){
				snakePoint.remove(snakeLength);
			}else{
				snakeLength++;
			}
		}		
		break;
	case KeyEvent.VK_DOWN:
		if (!snakeUP) {
			snakeUP=false;
			snakeDOWN=true;
			snakeLEFT=false;
			snakeRIGHT=false;
			Point pd = new Point(snakePoint.get(0).x,snakePoint.get(0).y + 1);
			snakePoint.add(0, pd);
			if(!isEat(point)){
				snakePoint.remove(snakeLength);
			}else{
				snakeLength++;
			}
		}		
		break;
	default:
		break;
	}
}

食物类中最重要的方法就是食物的出现

/**
 * 
 * @param ｐ食物
 */
public void setFoodPoint(Vector<Point> p,int width,int height) {
	Random r = new Random();
	while (true) {
		int x = r.nextInt(width/foodWidth);
		int y = r.nextInt(height/foodHeight);
		for (int i = 0; i < p.size(); i++) {
			if(x==p.get(i).x&&y==p.get(i).y){
				continue;
			}
		} 
		foodPoint.x = x;
		foodPoint.y = y;
		return ;
	}
}