android 发射弹球小游戏 附完整源码下载

【实例简介】android 弹球游戏制作
【实例截图】

 【核心代码】

package wyf.ytl; //声明包语句

public class BallGoThread extends Thread {
	
	GameView father;
	boolean flag = true;

	public BallGoThread(GameView father) {
		this.father = father;
	}

	public void run() {
		
		while (flag) {
			switch (father.direction) {
			case 0:
				// 右上
				// 当在向右上角移动的时候x坐标加，y坐标减
				father.ballx = father.ballx   father.ballSpan;
				father.bally = father.bally - father.ballSpan;
				//当碰到右边的墙壁的时候,向左下飘
				if (father.ballx >= father.screenWidth - father.ballSize) {
					father.direction = 3;
				} else if (father.bally <= 0) {
					// 碰到上壁,产生反射向右下飘
					father.direction = 1;
				}
				break;
			case 3:
				// 向左上角飘，x坐标逐渐减,y坐标逐渐减
				father.ballx = father.ballx - father.ballSpan;
				father.bally = father.bally - father.ballSpan;
				if (father.ballx <= 0) {// 碰到左壁
					father.direction = 0;
				} else if (father.bally <= 0) {// 碰到上壁
					father.direction = 2;
				}
				break;
			case 1:
				// 向右下角飘
				father.ballx = father.ballx   father.ballSpan;
				father.bally = father.bally   father.ballSpan;

				if (father.bally >= father.screenHeight - father.bannerHeight
						- father.bottomSpance - father.ballSize) {// 碰到下壁
					checkCollision(1);
				} else if (father.ballx >= father.screenWidth - father.ballSize) {// 碰到右壁
					father.direction = 2;
				}
				break;
			case 2:
				// 向左下角飘
				father.ballx = father.ballx - father.ballSpan;
				father.bally = father.bally   father.ballSpan;

				if (father.bally >= father.screenHeight - father.bannerHeight
						- father.bottomSpance - father.ballSize) {// 碰到下壁
					checkCollision(2);
				} else if (father.ballx <= 0) {// 碰到左壁
					father.direction = 1;
				}
				break;
			}
			try {
				Thread.sleep(80);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}

	public void checkCollision(int direction) {
		if (father.ballx >= father.bannerX - father.ballSize
				&& father.ballx <= father.bannerX   father.bannerWidth) {// 碰到板
			switch (direction) {
			case 1:
				father.direction = 0;
				break;
			case 2:
				father.direction = 3;
				break;
			}
		} else {// 没有碰到板
				// 游戏失败
			father.tt.flag = false;
			father.bgt.flag = false;
			father.status = 2;
		}
	}
}