koobas.hobune.stream
Random.Range issue
Hey guys, so I was following this pong game tutorial and every time someone scores a point the ball resets, waits 1 second, and then flies either left or right. Here is the code I'm using for that:
void GoBall() { float rand = Random.Range (0, 2); if (rand < 1) { rb2d.AddForce (new Vector2 (20, -15)); } else { rb2d.AddForce (new Vector2 (-20, -15)); } }
So it seems as though there are only 2 possible scenarios.. it ends up launching at -20, -15, or 20, -15.. However, sometimes it simply shoots straight down and then just bounces from top to bottom until I hit restart. I'm new to unity, could someone help me understand why this is happening? thank you so much!!
From your description of the behaviour, that rather sounds like you're sometimes calling GoBall() twice (once adding (-20,-15), and once adding (20,-15)). I suggest you check the code/event that calls this function.
So I tried looking through my code but I can't seem to find anything..
The first code below is the simple function that resets the ball to the middle of the screen and calls the GoBall function.
void RestartGame() {
ResetBall ();
Invoke ("GoBall", 1);
}
---- This code down here is what causes the ball to be reset after it touches either the left or right wall. I think the problem that you're talking about would probably exist within this function but I can't seem to find it. Do you see any issues?
void OnTriggerEnter2D (Collider2D hitInfo) {
if (hitInfo.name == "Ball") {
string wallName = transform.name;
Game$$anonymous$$anager.Score (wallName);
hitInfo.gameObject.Send$$anonymous$$essage ("RestartGame", 1.0f, Send$$anonymous$$essageOptions.RequireReceiver);
}
}
Thanks so much for the response!
Try adding a Debug.Log to that function that prints out each time the ball is reset.
