CODEWITHSUNDEEP
c#unity-game-engine
saif
saif

Reputation: 51

OnCollisionExit is not being called

Why is OnCollisionExit not being called? I am using both OnCollisionEnter and OnCollisionExit but unfortunately only OnCollisionEnter is being called.

public bool HandleCollided = false;

public void OnCollisionEnter(Collision col)
{
    if(col.gameObject.name == "RightHandAnchor")
    {
        HandleCollided = true;
    }
}

public void OnCollisionExit(Collision col)
{
    if(col.gameObject.name == "RightHandAnchor")
    {
        HandleCollided = false;
    }
}

Upvotes: 3

Views: 4039

Answers (5)

Nor
Nor

Reputation: 11

Try to use OnCollisionEnter() and OnTriggerExit() !!

Example: 

void OnCollisionEnter(Collision collision)
    {
      if((collision.gameObject.GetComponent<AttributeManager>().attributes & doorType) != 0)
        {
            this.GetComponent<BoxCollider>().isTrigger = true;
        }
    }


private void OnTriggerExit(Collider other)
{
    this.GetComponent<BoxCollider>().isTrigger = false;
}

Upvotes: 0

saif
saif

Reputation: 51

Unfortunately using OnCollisionExit did not work so instead I used OnTriggerEnter and OnTriggerExit. I activated "isTrigger" for both objects.

  public void OnTriggerEnter(Collider col)
{
    Debug.Log("entered");
    if (col.gameObject.name == "RightHandAnchor")
    {
        HandleCollided = true;
    }
}

public void OnTriggerExit(Collider other)
{
    Debug.Log("exit");
    if (other.gameObject.name == "RightHandAnchor")
    {

        print("No longer in contact with " + other.transform.name);
        HandleCollided = false;
    }
}

Upvotes: 1

Nicholas Bucher
Nicholas Bucher

Reputation: 440

It's impossible to tell why your code isn't working based the given snippet - this code depends on the configuration of each of the GameObjects' inspector windows in the editor.

Both the GameObject that this script is attached to and the colliding GameObject must have one Collider component attached to each of them (for example, a BoxCollider component or a SphereCollider component). Both Colliders must have their isTrigger checkboxes disabled. The GameObject that this script is attached to must also have a Rigidbody component attached.

In order to debug this situation, add Debug.Log() statements in your functions. This is generally good practice, and it might be that the function is being called but the conditional statement is not true.

Here are some additional ideas on what might be going wrong:

  • You may be changing the name of the colliding GameObject somewhere else in your code.
  • You may be destroying the GameObject.
  • It might be that neither function was being called and HandleCollided was being changed elsewhere in your code.
  • It might be that the parameter, col, is not what you expect.
public void OnCollisionEnter(Collision col)
{
    Debug.Log("Collision Enter!");
    Debug.Log(col.gameObject.name);
}
public void OnCollisionExit(Collision col)
{
    Debug.Log("Collision Exit!");
    Debug.Log(col.gameObject.name);
}

Upvotes: 3

Dimitri
Dimitri

Reputation: 119

So you said "There are two objects that collides with each other. One has sphere collider attached to it and another has box collider. One of the objects have rigidbody attached as well." On which one is the code? and yes this matters! only 1 of the objects will keep track of the exit meaning that if it's the non-kinematic it will not work.

Upvotes: 1

joreldraw
joreldraw

Reputation: 1736

You need a non-kinematic rigidbody attached to your object to get the event for OnCollisionExit

Upvotes: 0

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