Problem OnTriggerEnter is calling more than once

Questions & Answers
1

function Update () {
if(Input.GetMouseButtonDown(0)){
StartCoroutine(blink(0.1));
}
}

function blink(time : float){
	var originalPos = transform.position;
	var targetPos = originalPos + Vector3(2.0, 0, 0);
	var originalTime = time;
	while (time > 0.0f){
		time -= Time.deltaTime;
		transform.position = Vector3.Lerp(targetPos, originalPos, time / originalTime);
		yield;
	}
}

function OnTriggerEnter(collision : Collider){
	pos = Vector3(collision.transform.position.x + 0.1,transform.position.y,transform.position.z);
	Instantiate(portal,pos,transform.rotation);
}

For some reason the instantiate is being called hundreds of times, so much so it crashes Unity. Any ideas - Caius

2

Despite coroutines and yield are always the first suspects in such cases, they seem ok. I suspect the problem is the trigger: you’re instantiating the portal object at trigger’s x position + 0.1, and z and y are the same as the owner of this script. If the portal object is a trigger, it will fire OnTriggerEnter again, which will generate another portal, which will fire OnTriggerEnter again, and so on.