koobas.hobune.stream
Why the collisions are detected randomly?
Hi everyone,
I am trying to detect the collision between two object. Basically there are 5 spheres that will collide whit a slightly moving object. First the first sphere, than I will put the gravity to the second one and so on. Everytime I destroy the collided sphere. In the last sphere I reset the scene. I print "collision detected (name_of_the_sphere)" everytime that the collision happens. The problem is that sometimes is really random. In particular the collision detected sometimes appear twice for some sphere, sometimes only once, then 2 times..how is it possible?
ps: the object on which the spheres impact is kinematic
void OnCollisionEnter(Collision col)
{
print("Collisione center");
GameObject altodx = GameObject.Find("altodx");
Rigidbody rb = altodx.GetComponent<Rigidbody>();
rb.useGravity = true;
//play the audio
cube.GetComponent<AudioSource>().Play();
GameObject center = GameObject.Find("center");
Destroy(center);
Well, you're never using the actual game object that collides with the rigid body.
You are never using the "col" variable, ins$$anonymous$$d you are getting the "altodx" GameObject which I assume can return any of the spheres named that in any order the engine decides to get them in.
You should be using
GameObject altodx = col.gameObject;
I tried but doesn't work..it still count random numbers of collision ins$$anonymous$$d of just one
you need to check from what you are colliding so usually you either check by a tag or name, something like
void OnCollisionEnter(Collision col)
{
if(col.gameObject.CompareTag("Sphere")){
print("Collisione center");
}
}
So now it will know that yeah i collided with the Sphere and now i have to print "Collision centre".
Thank you. I tried something similar. Basically as you said I check when a sphere impact on a precise object, my kinematic object. But then I still have the same problem, sometimes it print me twice the "collision detected" and sometimes just once. And in this case I also have a delay on the collision of the first sphere (before being destroyed, that is, the sphere impact, then roll for a second on the collider and then it is destroyed)..
I also tried to put a bool variable as false, then as true inside the collision detection function, and a control that if the bool is true then print something. But again, sometimes it print twice and sometime only once. I really can not understand where the problem is!
Then under the rigidbody component of your game object change the Collision Detection property to continuous
O$$anonymous$$, I put the control you suggested and now it seems to work! YEAH! Thank you very very much! :)
Not really solved...Is still random from time to time.. I don't know what else to try. So I am trying to disable the script after the first execution and re enable it later during the execution of the scripts of the other spheres.
UPDATE: after the collision I disable the detection of the collision like this: GetComponent().detectCollisions = false;
and then I reactivate the collision detection on another sphere. BUT STILL sometime it count 2 collision instead of one! is impossible!! Theoretically after the first one the detection is disabled! how is it possible that it print two times "collision detected"????!!
