public void add_new_ball(GameObject ball)
{
var bu = new BallUnit(ball);
update_hit_pos(bu);
Debug.Log("New ball discovered: " + bu.rb.position.ToString());
Debug.Log(System.String.Format("hit_pos={0}, hit_time={1}, leave_time={2}", bu.hit_pos, bu.hit_time, bu.leave_time));
if (bu.hit_time < 0)
{
return;
}
if (ball.GetComponent <Ball>().player_id == player_id)
{
attack_queue.Add(bu);
attack_queue.Sort((x, y) => x.hit_time.CompareTo(y.hit_time));
}
else
{
defence_queue.Add(bu);
defence_queue.Sort((x, y) => x.hit_time.CompareTo(y.hit_time)); // A heap would be better
}
last_refresh_time = Time.time;
}
private void update_hit_pos(BallUnit bu)
{
if (bu.ball.gameObject == null)
{
bu.leave_time = -1;
return;
}
var v = bu.rb.velocity;
var pos = bu.rb.position;
var t = (Mathf.Abs(board_y - pos.y)) / Mathf.Abs(v.y);
var wall_width = wall_x * 2 - ball_r * 2;
var raw_x = wall_width / 2 + pos.x + t * v.x;
var n = Mathf.Floor(raw_x / wall_width);
bu.hit_time = (Mathf.Abs(board_y - pos.y) - ball_r) / Mathf.Abs(v.y);
bu.leave_time = (Mathf.Abs(board_y - pos.y) + board_thick + ball_r) / Mathf.Abs(v.y);
if (n % 2 == 0)
{
bu.hit_pos = raw_x - n * wall_width - wall_width / 2;
}
else
{
bu.hit_pos = wall_width / 2 - (raw_x - n * wall_width);
}
var r_ext = ball_r * Mathf.Abs(v.magnitude / v.y);
var b_ext = (board_thick) * Mathf.Abs(v.x / v.y);
bu.hit_ext = new float[2] {
r_ext + (v.x < 0 ? b_ext : 0),
r_ext + (v.x > 0 ? b_ext : 0)
};
}
