Accessing parts of a model from a script

Unity Engine
1

Hello,
I’ve tried searching for this using google and via the community but can’t seem to find any reference to it.

My current situation is this:
I have a model of a spaceship (created using Maya) which also includes 2 place holders called Gun_Left and Gun_Right from which I emit my bullets whenever the “fire” button is pressed. The way the bullets are emitted is via a script which is attached to both Gun_Left and Gun_Right. i.e. 1 script attached to 2 points on the model.

My question:
Is there a way in which I can have a single script which is attached to my root spaceship model (Fighter_2_4) so that I can use just that script to fire using the position and rotation of my gun ports?

My model hierarchy is as follows:
Fighter_2_4
|group2
|group3
| Gun_Left
| Gun_Right

My current script looks like this:

// Script to shoot projectile

var Fighter : GameObject;				// The main fighter
var ProjectilePrefab : Rigidbody;		// The bullet prefab to be used
var ProjectileSpeed : int = 40;      // Speed of the bullets
private var resultantspeed : int = 0;


function Update () {
	if (Input.GetButtonDown("Fire1")) {
		// Fire1 button detected
		
		// Get the script component
		var flightcontroller : Fighter_Character = Fighter.GetComponent(Fighter_Character);
		
		resultantspeed = flightcontroller.flightspeed;
		// Get the speed of the projectile and add it to the speed of the fighter
		resultantspeed = resultantspeed + ProjectileSpeed;
		
		// Create new projectile
		var Projectile : Rigidbody = Instantiate(ProjectilePrefab, transform.position, transform.rotation);
		
		// Set the projectiles velocity in the z direction but transfrom from local to world orientation
		Projectile.velocity = transform.TransformDirection(Vector3(0,0,resultantspeed));
		
		// Make sure that the bullet does not collide with the gun muzzle object
		Physics.IgnoreCollision(Projectile.collider, transform.root.collider);
	}
		
}
2

Move your firing code out of the Update and into its own custom method, then just call that method whenever you want to fire:

on your spaceship:

function Fire()
{
	this.GetComponent("Gun_Left").Fire();
	this.GetComponent("Gun_Right").Fire();
}

On your guns:

function Update()
{
	if (Input.GetButtonDown("Fire1")) 
	{
		// Fire1 button detected
		this.Fire();
	}
}

function Fire()
{
	// Get the script component
	var flightcontroller : Fighter_Character = Fighter.GetComponent(Fighter_Character);
	
	resultantspeed = flightcontroller.flightspeed;

	// Get the speed of the projectile and add it to the speed of the fighter
	resultantspeed = resultantspeed + ProjectileSpeed;
	
	// Create new projectile
	var Projectile : Rigidbody = Instantiate(ProjectilePrefab, transform.position, transform.rotation);
	
	// Set the projectiles velocity in the z direction but transfrom from local to world orientation
	Projectile.velocity = transform.TransformDirection(Vector3(0,0,resultantspeed));
	
	// Make sure that the bullet does not collide with the gun muzzle object
	Physics.IgnoreCollision(Projectile.collider, transform.root.collider);
}

Just whipped this together, adapt it as you need to.

3

Hi,

Thanks for the info, but this is not what I’m looking for. I would like to completely take the firing script out of my guns and only have it in the script attached to my script.

4

Ok, do it that way then. What’s the problem?