Changing Canvas Text When Player Enters Room

I'm totally fresh to Unity and C#, and slightly knowledgeable with JS, so bear with me please.
I start the player off with a canvas and that is supposed to stay with them through the game, so that they know what to do. I'm trying to make it so that when the player walks through the doorway, there's an invisible collider that changes the text in the canvas to a new message. What am I missing here? If there's anything else you need to help you help me please let me know.

Code (JavaScript):

1. import UnityEngine.UI;
2.  
3. var TextBoxOnCheck : int = 0;
4. var MessageBox : GameObject;
5. var TextBox : GameObject;
6. var TextMessage : String;
7.  
8. function OnTriggerEnter (other : Collider) {
9.     if(other.gameObject.tag == "Player"){
10.         TextBoxOnCheck = 1;
11.         MessageBox.SetActive(true);
12.         TextBox.GetComponent.<Text>().text = TextMessage;
13.         TextMessage = "Let's pick our favorite seat at the bar. (Click a stool)";
14.     }
15. }
16.  

 

On the assumption that the collision is not triggered, you need to use the following event instead:

Code (CSharp):

1. OnControllerColliderHit(ControllerColliderHit hit) { ... }

Docs available here: https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnControllerColliderHit.html

 

I'm not sure that's what I'm looking for. I tried implementing your suggestion, but it did not change the text in the canvas. It seems OnControllerColliderHit that it functions more for pushing objects around when walking into them? Or at least that's my understanding. This is what I made (side note I was making this with JS so I tried to change it accordingly.):

Code (JavaScript):

1. function OnControllerColliderHit (hit : ControllerColliderHit) {
2.     var body : Rigidbody = hit.collider.attachedRigidbody;
3.     if(gameObject.tag == "Player"){...}

 

Generally, triggers need a rigidbody to function properly. I think you need to add either a Rigidbody to your controller or Trigger. I would set it to kinematic to avoid unnecessary physics calculations as well.

 

I'm using Unity's built-in FPS Controller so that has the Rigidbody already. I tried adding Rigidbody to the EnterBarCollider in my scene, set to kinematic, and still got nothing.

 

Have you tried a Debug.Log("hit") in the trigger to see if its even registering a collision?

Code (CSharp):

1. import UnityEngine.UI;
2. var TextBoxOnCheck : int = 0;
3. var MessageBox : GameObject;
4. var TextBox : GameObject;
5. var TextMessage : String;
6. function OnTriggerEnter (other : Collider) {
7. Debug.Log(other.transform.name);
8.     if(other.gameObject.tag == "Player"){
9.         TextBoxOnCheck = 1;
10.         MessageBox.SetActive(true);
11.         TextBox.GetComponent.<Text>().text = TextMessage;
12.         TextMessage = "Let's pick our favorite seat at the bar. (Click a stool)";
13.     }
14. }

Also, in your screenshots your messagebox and textbox dont have GameObjects added. If it was a successful trigger, those should return null.

 

I got it. I actually realized myself that I didn't have anything in the MessageBox and TextBox a little bit ago. If it wasn't already clear I'm a rookie... lol. Thank you