// 새로운 볼 생성
static Ball Create(int x, int y, int Rad) {
Random Rnd = new Random();
Ball NewBall = new Ball();
NewBall.x = x;
NewBall.y = y;
NewBall.rad = Rad;
do {
NewBall.dx = Rnd.nextInt(11) - 5;
NewBall.dy = Rnd.nextInt(11) - 5;
} while (NewBall.dx == 0 || NewBall.dy == 0);
NewBall.count = 0;
NewBall.color = Color.rgb(Rnd.nextInt(256), Rnd.nextInt(256), Rnd.nextInt(256));
return NewBall;
}
