How to activate a script from another script at runtime

Questions & Answers
1

Hi I need to know how to activate a script at runtime on a raycast collision heres the scripts im using now, the function update one is the one im using to find the gameobject and then find the script and then activate it on a raycast hit this one is called ZombieAIRaycast… And the one im trying to activate is the MoveForward script at the bottom. The move forward script is attached to my AI(ZombieCharacter) and the ZombieAIRaycast script is on my FirstPersonController(and no I did not get these mixed up) Please Help. The code I used is in Java.

function Update () 
{
    var forward = transform.TransformDirection(Vector3.forward);
    var hit : RaycastHit;

    Debug.DrawRay(transform.position, forward * 5, Color.blue);

    if(Physics.Raycast(transform.position, forward, hit, 5))
    {
	if(hit.collider.gameObject.name == "top")
	{		
	    if(gameObject.Find("ZombieNormalDragLeg") != null)
	    {
	        Debug.Log("ZombieNromalDragLeg object found...");
                gameObject.Find("ZombieNormalDragLeg").SendMessage("MoveForward");
	    }		
	}
    } 
}

Move Forward script

var speed : float = 5.0;
   
function Update () {
    transform.Translate(Vector3(0,0,speed) * Time.deltaTime);
}

[Edit by Berenger, code formatting]

2

SendMessage is going to check if the gameobject has a function named MoveForward and then call it (several times if there is several component implementing it). So, you need to declare that function in the Move Forward script. You should use a different name to avoid confusion between the function and a constructor.

Note that the Find function is particularly slow, and you are using it twice. You should use FindWithTag instead, and store the result before checking if it was found.