Calling function Pickup with no parameters but the function requires 1

I've been trying to fix this for over 2 hours and I really can't seem to figure out where the error is coming from.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PlayerInteract : MonoBehaviour
6. {
7.    
8.  
9.     public GameObject currentInterObject = null;
10.    
11.  
12.     private void Update()
13.     {
14.         if(Input.GetButtonDown ("Interact") && currentInterObject)
15.         {
16.           currentInterObject.SendMessage("Pickup");
17.         }
18.     }
19.  
20.     void OnTriggerEnter2D(Collider2D other)
21.     {
22.         if (other.CompareTag("InterObject"))
23.         {
24.             currentInterObject = other.gameObject;
25.         }
26.     }
27.  
28.     void OnTriggerExit2D(Collider2D other)
29.     {
30.         if (other.CompareTag("InterObject"))
31.         {
32.             if (other.gameObject == currentInterObject)
33.             {
34.                 currentInterObject = null;
35.             }
36.         }
37.     }
38.  
39.    
40.  
41. }

 

Does the Pickup function take any arguments? You didn't post the source for Pickup.

 

Here's the source for Pickup.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class InteractionObject : MonoBehaviour
7. {
8.  
9.     public GameObject Effect;
10.     private HUD health;
11.     private PlayerStats stats;
12.     private gameMaster gm;
13.  
14.     public int Heal = 1;
15.  
16.  
17.     //Text
18.     private void Start()
19.     {
20.         gm = GameObject.FindGameObjectWithTag("GameMaster").GetComponent<gameMaster>();
21.     }
22.  
23.     void OnTriggerEnter2D(Collider2D other)
24.     {
25.         if (other.CompareTag("Player"))
26.         {
27.  
28.             if (other.CompareTag("Player"))
29.             {
30.                 gm.InputText.text = ("[E] to pickup");
31.             }
32.         }
33.     }
34.  
35.     void OnTriggerStay2D(Collider2D other)
36.     {
37.         if (other.CompareTag("Player"))
38.         {
39.            
40.             if (other.CompareTag("Player"))
41.             {
42.                 if(Input.GetButtonDown("Interact"))
43.                 {
44.                     Pickup(other);
45.                     gm.InputText.text = (" ");
46.                 }
47.             }
48.         }
49.     }
50.  
51.     void OnTriggerExit2D(Collider2D other)
52.     {
53.         if (other.CompareTag("Player"))
54.         {
55.             //Pickup(other);
56.             if (other.CompareTag("Player"))
57.             {
58.                 gm.InputText.text = (" ");
59.             }
60.         }
61.     }
62.  
63.     public void Pickup(Collider2D player)
64.     {
65.         Instantiate(Effect, transform.position, transform.rotation);
66.  
67.         GetComponent<SpriteRenderer>().enabled = false;
68.         GetComponent<Collider2D>().enabled = false;
69.  
70.        
71.         //Give Buff to Player
72.         PlayerStats stats = player.GetComponent<PlayerStats>();
73.         stats.curHealth = stats.curHealth + Heal;
74.  
75.  
76.         //stats.curHeatlh = stats.maxHealth;
77.  
78.         // yield return new WaitForSeconds(duration);
79.  
80.         //stats.maxHealth /= multiplier;
81.         //player.transform.localScale /= multiplier;
82.  
83.         //Item Pickup
84.         Destroy(gameObject);
85.        
86.     }
87.  
88.    
89. }
90.  

 

Pickup is expecting a Collider2D argument so you need to pass that in the sendMessage call.

Example

currentInterObject.SendMessage("Pickup", GetComponent<Collider2D>());

 

So something like this might work then?

Code (CSharp):

1. if(Input.GetButtonDown ("Interact") && currentInterObject)
2.         {
3.           currentInterObject.SendMessage("Pickup", GameObject.FindGameObjectWithTag("Player").GetComponent<Collider2D>());
4.         }

 

It looks like it ought to.

You'll probably attract the attention of the FindGameObject… haters though , but you can deal with that after you get the basic functionality working.