java课程设计-贪吃蛇代码(4)

&& (head.y + Node.H) == food.y)

return true;

else

return false;

}

// ----------是否碰撞

private boolean isCollsion() {

Node node = body.get(0);

// ------------碰壁

if (derection == Snake.RIGHT && node.x == 280)

return true;

if (derection == Snake.UP && node.y == 0)

return true;

if (derection == Snake.LEFT && node.x == 0)

return true;

if (derection == Snake.DOWN && node.y == 380)

return true;

// --------------蛇头碰到蛇身

Node temp = null;

int i = 0;

for (i = 3; i < body.size(); i++) {

temp = body.get(i);

if (temp.x == node.x && temp.y == node.y)

break;

}

if (i < body.size())

return true;

else

return false;

}

// -------在随机的地方产生食物

public void makeFood() {

Node node = new Node(0, 0);

boolean isInBody = true;

int x = 0, y = 0;

int X = 0, Y = 0;

int i = 0;

while (isInBody) {

x = (int) (Math.random() * 15);

y = (int) (Math.random() * 20);

X = x * Node.W;

Y = y * Node.H;