How to make it so only my player activates Trigger

Questions & Answers
1

Ok so I made an AI for a zombie like thing that follows you (currently a cube for testing) and I wrote this script:

var target : Transform;
var enemy : Transform;
var moveSpeed : float = 5.0;
var inRange : boolean = false;

function Start() {
moveSpeed = moveSpeed*Time.deltaTime;
}

function OnTriggerEnter() {
    inRange = true;
}

function OnTriggerExit() {
    inRange = false;
}

function Update() {
    if(inRange == true) {
	    enemy.transform.LookAt(target);
		enemy.transform.position = Vector3.Lerp(
		enemy.position, target.position,
		Time.deltaTime * moveSpeed);
	}
}

So the cube follows me but whenever I shoot my gun it just freezes the cube in place. I supposed this was caused by the bullet (currently an invisible sphere) glitching the trigger. Can someone help me find out whats wrong please?

PS this is the gun script:

var bulletPrefab : Transform;
var shootSpeed : float = 99999999;
var clipAmmo = 12;
var Ammo = 196;
var ammoLeft : boolean = true;
var gunShotSFX : AudioSource;
var noAmmoSFX : AudioSource;
var reloadSFX : AudioSource;

function Update() {
    if(clipAmmo > 0) {
        if(Input.GetButtonUp("Fire1")) {
	        var bullet = Instantiate(bulletPrefab,
		
		    GameObject.FindWithTag("BarrelFront").transform.position,
		
		    GameObject.FindWithTag("Gun1").transform.rotation);
			
			clipAmmo = clipAmmo - 1;
			
			gunShotSFX.Play();
			
	    }
	}

if(ammoLeft == true) {
	if(Input.GetKeyUp("r")) {
	    if(clipAmmo == 0) {
		    clipAmmo = 12;
			Ammo = Ammo - 12;
			reloadSFX.Play();
		}
	    if(clipAmmo == 1) {
		    clipAmmo = 12;
			Ammo = Ammo - 11;
			reloadSFX.Play();
		}
		else if(clipAmmo == 2) {
		    clipAmmo = 12;
			Ammo = Ammo - 10;
			reloadSFX.Play();
		}
		else if(clipAmmo == 3) {
		    clipAmmo = 12;
			Ammo = Ammo - 9;
			reloadSFX.Play();
		}
		else if(clipAmmo == 4) {
		    clipAmmo = 12;
			Ammo = Ammo - 8;
			reloadSFX.Play();
		}
		else if(clipAmmo == 5) {
		    clipAmmo = 12;
			Ammo = Ammo - 7;
			reloadSFX.Play();
		}
		else if(clipAmmo == 6) {
		    clipAmmo = 12;
			Ammo = Ammo - 6;
			reloadSFX.Play();
		}
		else if(clipAmmo == 7) {
		    clipAmmo = 12;
			Ammo = Ammo - 5;
			reloadSFX.Play();
		}
		else if(clipAmmo == 8) {
		    clipAmmo = 12;
			Ammo = Ammo - 4;
			reloadSFX.Play();
		}
		else if(clipAmmo == 9) {
		    clipAmmo = 12;
			Ammo = Ammo - 3;
			reloadSFX.Play();
		}
		else if(clipAmmo == 10) {
		    clipAmmo = 12;
			Ammo = Ammo - 2;
			reloadSFX.Play();
		}
		else if(clipAmmo == 11) {
		    clipAmmo = 12;
			Ammo = Ammo - 1;
			reloadSFX.Play();
		}
	}
}

    if(0 >= Ammo) {
        ammoLeft = false;
    }
	else if(Ammo > 0) {
	    ammoLeft = true;
	}
	
	if(clipAmmo < 1) {
	    if(Input.GetButtonUp("Fire1")) {
		    noAmmoSFX.Play();
		}
	}
	
}

function OnGUI() {
    GUI.Box(Rect (10,10,90,25), "Clip: " + clipAmmo);
    GUI.Box(Rect (10,35,90,20), "Ammo: " + Ammo);
}
2

To fix this, and to optimize, I’d suggest addressing this by creating two new Layers:

  1. Player - assigned only to the player
  2. PlayerTrigger - assigned to triggers you want only the player to activate.

Then go into your Project Settings > Physics, and set up the collisions so that Player still collides with whatever you need, but PlayerTrigger collides ONLY with the Player layer.

If you do this, OnTriggerEnter / OnTriggerExit will only be called if the player enters the trigger!