Error in C# script for setting up a trigger to prompt an image to show

Hi all,

I have been struggling for four days with writing a line of code for a 2D mini game.

My idea is:
1. Setting up a cube
2. When the Player step on the cube, it will prompt another Game object to show
3. the game object itself can be shut down by space bar.

I have edited the code for the cube for dozens of times but still seeing errors, I am so frustrated...
Would anyone explain why CS0246 and the error "OnGUIDepth changed: was 0 is 1. Event type was 0" occured? Thanks <3

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class GameObjShow : MonoBehaviour
6. {
7.     public gameObject customImage;
8.  
9.     // Start is called before the first frame update
10.     void Start()
11.     {
12.         customImage.SetActive(false);
13.     }
14.     void OnTriggerEnter2D(Collider2D other)
15.     {
16.         if (other.gameObject.tag == "Player");
17.         {
18.             customImage.SetActive(true);
19.             Debug.Log("On trigger enter 2D");
20.         }
21.     }
22.     // Update is called once per frame
23.     void Update()
24.     {
25.      
26.     }
27. }
28.  

Do I need to define gameObject in the script? I thought it was in the "dictionary" of C# and not need to be defined...

Thank you so much for your help!

 

can you copy the full error from console (or screenshot), to see at which line it happens?

but at line 7, gameObject should be GameObject (class)
https://docs.unity3d.com/ScriptReference/GameObject.html

 

Thanks! I have replaced "gameObject" with "GameObject".
There's a new error message "Assets\Scripts\GameObjShow.cs(16,19): error CS1061: 'Collider2D' does not contain a definition for 'GameObject' and no accessible extension method 'GameObject' accepting a first argument of type 'Collider2D' could be found (are you missing a using directive or an assembly reference?)"

 

also check:
https://www.guru99.com/difference-between-object-and-class.html#5

 

Thanks for your help.
I was using gameObject but there was another error.

Assets\Scripts\GameObjShow.cs(7,12): error CS0246: The type or namespace name 'gameObject' could not be found (are you missing a using directive or an assembly reference?)

TBH I have been looking at the docs for days but there are too much information that I don't know which one suits my case since I have zero knowledge in C#. The last couple of weeks I could write scripts for character walking and detecting colliders, changing scene and animation, produced art work for the game as well, sadly I am completely new to C#, hope you will understand the challenge I face...

 

Thanks!
Class is more suitable since there's a field for drag and drop the appropriate object, however, whether I use Class and Object, there are still errors...
Appreciate if you can point out what is the error in the script, thank you so much!

 

check this one, it should help:

let me know how it goes?

 

Thanks for sharing the link!
Most grateful if you can give some hints which part of the script or game play is relevant to variables and functions- so I can understand from the correct point of view, thanks.

 

this is one (public) variable, right now its missing proper type:

1. public gameObject customImage;

 

Thanks! I think the issue has been addressed by changing the two game objects into Class and object!!


Tested it and the script manage to prompt the object to show

Regards,
Kelly