Reference Null Error with Collider

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1

I have a "first person controller" object with a "weaponsmanagemnt" script and a child object: "Graphics."

graphics has a capsule collider on it.

another object in the world has a "triggerme" script on it which I want to reference weaponsmanagement when I walk onto it. I'm using this code but its giving me a NullReferenceException error on the line after the if statement:

function OnTriggerEnter (other : Collider) 
{
    if (other.gameObject.tag == "Player"){
        other.gameObject.GetComponent("WeaponsManagement").showGui();
    }
}

the weird thing is, even though it gives me that error: "object reference not set to an instance of an object" it still seems to call the function showGui.

also, I've tried other things such as "other.gameObject.transform.parent.GetComponent" and the like. I get the same error. How do I call the script on it's parents GameObject if all I have is a collider to work with?

2 Answers

2
2

GetComponent returns a component, not a WeaponsManagement object. you will need to cast that unless you are on unity 2.x

also I would recommend to never use strings for getcomponent, use the classname without the string. that way the compiler will inform you on typos

3

just took off player tag from graphics and it was ok