Question Multiples gameObjects with same script command 1 bool in an other script

Hello everyone,

I have 10 interlocutors, i want my interlocutors start a dialogue when they are in contact with the player :

Code (CSharp):

1. void OnTriggerStay2D(Collider2D col)
2.     {
3.         if (col.gameObject.CompareTag("Player"))
4.         {
5.             player.GetComponent<PlayerInteract>().hasAnInterlocutor = true;
6.         }
7.     }
8.  
9.     void OnTriggerExit2D(Collider2D col)
10.     {
11.         if (col.gameObject.CompareTag("Player"))
12.         {
13.             player.GetComponent<PlayerInteract>().hasAnInterlocutor = false;
14.         }
15.     }

The code above works well if i only have 1 interlocutor in my scene.
But if i have more than one, hasAnInterlocutor stay false.
I understand why but i can't find a way so set hasAnInterlocutor = true if you have 1 interlocutor in contact and false only if i have 0 interlocutor in contact.

 

You need to introduce a counter and make hasAnInterlocutor into a Property that checks the counter.

Code (CSharp):

1. int   interlocutorCounter=0;
2.  
3. bool HasAnInterLocutor{get => interlocutorCounter>0;}
4.  
5. [LIST=1]
6. [*]void OnTriggerStay2D(Collider2D col)
7. [*]    {
8. [*]        if (col.gameObject.CompareTag("Player"))
9. [*]        {
10. [*]            player.GetComponent<PlayerInteract>().interlocutorCounter++;
11. [*]        }
12. [*]    }
13. [/LIST]
14.  

There are still ways this might break though. Hard to predict what happens when you delete Objects and / or teleport stuff arround.

 

Amen brother. This sort of "rely on perfect ENTER / EXIT calls" matchup code gives me hives.

Instead have the NPCs each ask they distance to the player, and when it is within a certain amount consider the player worthy of talking to.

Elements you need:

- a way for NPCs to ask if the player is nearby them

- a UI for the NPC to bring up when player is close ("Talk to me")

- a way for the NPC to start the conversation when prompted