Instantiating by touch on iPhone/iPad

Questions & Answers
1

I am making a game for iphone/Ipad where the main character has to throw grenades against his enemies when I double tap on the screen. As I foresee very simple the situation -which is not- I choose a Javascript included in the Unity documentation:

// Instantiates a projectile whenever the user taps on the screen

var grenade : GameObject; var GrenadeForce : Float;

function Update () { 

for (var i = 0; i < Input.touchCount; ++i) {
    if (Input.GetTouch(i).phase == TouchPhase.Began){</p>

clone = Instantiate (grenade, transform.position, transform.rotation);

//add force to the grenade

grenade.rigidbody.AddForce(transform.forward * GrenadeForce);

    }
}

}

But when I tap on the screen the character drop the grenade on the floor; he do not throw the grenade away regardless the GrenadeForce that I write down on the script.

What am I doing wrong?

Someone could help me on this?

2

I was typing a long answer then realised the problem:

should be 

clone.rigidbody.AddForce(transform.forward * GrenadeForce);

(grenade is the name of the prefab slot, but clone is the variable name you give it, so use this to control it)

--I will leave the other part here incase anyone else has a similar problem---

A couple other things you can check are:

1: your prefab grenade actually has a rigidbody attached to it and you have attached it to the script

  1. forward is going to define the z axis, try ".up" for y axis, or ".right" for x axis

  2. if these don't work, try

    clone : GameObject = Instantiate (grenade, transform.position, transform.rotation) as GameObject;