OnCollison

Physics
1

I’m Wondering how to get a weapon when colliding with an object.
Here’s my code

function OnTriggerEnter(theCollider : Collider) 
{
    SelectWeapon(0);
}

function Start () {
	// Select the first weapon
	SelectWeapon(1);
}

function Update () {
	// Did the user press fire?
	if (Input.GetButtonUp ("Fire1"))
		BroadcastMessage("Fire");
	}	

function SelectWeapon (index : int) {
	for (var i=0;i<transform.childCount;i++)	{
		// Activate the selected weapon
		if (i == index)
			transform.GetChild(i).gameObject.SetActiveRecursively(true);
		// Deactivate all other weapons
		else
			transform.GetChild(i).gameObject.SetActiveRecursively(false);
	}
}

It’s from the fps tutorial on how to switch weapons and i just replaced GetButtonDown With OnTriggerEnter
and nothing happens.

2

Is OnTriggerEnter() getting called? Do you have triggers on the appropriate game objects?

3

That would be the Object they are touching to get the weapons right? then yes.

4

You only answered part of my post. It takes two colliders to collide; you need both a collider on what you’ll walk into, and a collider on the player.

Add a Debug.Log() in your OnTriggerEnter() function and find out: is it getting called? If it’s not getting called, nothing’s going to happen. If it is, the bug is elsewhere.

5

Well i am using this now.

function Start () {
	// Select the first weapon
	SelectWeapon(0);
}

function Update () {
	// Did the user press fire?
	if (Input.GetButton ("Fire1"))
		BroadcastMessage("Fire");
	
	function OnTriggerEnter (other : Collider) { 
	SelectWeapon(0);
		} 
	else if (Input.GetKeyDown("2")) {
		SelectWeapon(1);
	}	
}

And i dont know were to put the "else if (Input) Stuff. Can someone please write this correctly for me?

6

You can’t put a function in the middle of another function.

function Start () {
	// Select the first weapon
	SelectWeapon(0)
}

function Update () {
	// Did the user press fire?
	if (Input.GetButton ("Fire1"))
		BroadcastMessage("Fire");
	else if (Input.GetKeyDown("2")) {
		SelectWeapon(1);
	}	
}
	
function OnTriggerEnter (other : Collider) { 
	SelectWeapon(0);
}
7

Yeah i Know.Thats what i need help with.