private void resetSnow(Snow snow) {
snow.y = 0;
snow.x = r.nextInt(width);
snow.speed = r.nextInt(maxSpeed) * 2;
snow.radius = 2;
snow.color = Color.WHITE;
}
/**
* 雪花下落
*
* @param snow Snow
*/
private void SnowDown(Snow snow) {
// 雪花的落出屏幕后又让它从顶上下落
if (snow.x > screenWidth || snow.y > screenHeight) {
snow.y = 0;
snow.x = random.nextFloat() * screenWidth;
}
snow.x += snow.offset; // 下落飘的偏移量
snow.y += snow.speed; // 下落的速度
}
private void moveSnow(Snow snow) {
snow.y = snow.y + snow.speed * 2;
if (snow.y > height) resetSnow(snow);
}