Spawning on Trigger

Questions & Answers
1

Hey Everyone

What I need is help to spawn a gameobject once a trigger is hit and I want to spawn in a forward motion.

Here the code that I attached to an empty game object.

var batPrefab:Transform; // Insert bat prefab

var batAmount:int = 20; // Number of bats to be spawned instantly

function OnTriggerEnter (Bats : Collider) {

for(i=0;i<batAmount;i++)
{
var obj : Transform = Instantiate(batPrefab);
obj.parent = transform;

2

Have you tried OnTriggerStay(Bats:Collider)
This one will be called every frame.
If you want it to be called only once, you could add a bool or something.

ref: http://unity3d.com/support/documentation/ScriptReference/MonoBehaviour.OnTriggerStay.html

3

I am not sure what your question is?
That code to me look like it should work. But i would personally use GameObject for the batPrefab instead of a Transform.

4

I may be wrong, but you aren’t telling it where to instantiate…

would it not be:

var obj = Instantiate(batPrefab, startingPosition,Quaternion.identity);
obj.rigidbody.addForce(forward*speedToGoForward);

//Where starting position is the position of the trigger and speedToGoForward is how fast the initial value is when it is instantiated

Hope it helps

Melissa