How to pass an argument to a function in another script? (c#)

Unity Engine
1

Hey to everybody,

i searched but i can’t find the answer to this question, maybe because my english isn’t verry good acctualy (germanman).
Would be nice if somebody could help me out.

here what i want to do:

//i want to pass an arument to function AddItem:

using UnityEngine;
using System.Collections;

public class PickUpItem : MonoBehaviour {

public static bool pickUpItem = false;
private int chooseRandomItem = 0;
public int countItemsToPickUp;
private int countItemsPickedUp;
// Use this for initialization
void Start () {
countItemsPickedUp = 0;
}

// Update is called once per frame
void Update () {

}
void OnTriggerStay(Collider other)
{
if (other.gameObject.tag == “Player”)
{
if (pickUpItem)
{
chooseRandomItem = Random.Range( 1, 3);
countItemsPickedUp ++;
switch (chooseRandomItem)
{
case 1:
Inventory.AddItem(1);
break;
case 2:
Inventory.AddItem(2);
break;

case 2:
Inventory.AddItem(3);
break;
}
if (countItemsPickedUp >= countItemsToPickUp)
{
Destroy(gameObject);
}
}
}
}
}

//in another script:
(…)
void AddItem(int id)
{
foundInventoryItemSlot = false;
for (int i = 0; i < inventory.Count; i++)
{
if (inventory*.itemID == id)*
{
for (int j = 0; j < database.items.Count; j++)
{
if (database.items[j].itemID == id)
{
if (stack*.stackCount < database.items[j].itemInventoryStack)*
{
stack*.stackCount += 1;*
}
foundInventoryItemSlot = true;
}
}
break;
}
}
if (!foundInventoryItemSlot)
{
for (int i = 0; i < inventory.Count; i++ )
{
if (inventory*.itemID == -1)*
{
for (int j = 0; j < database.items.Count; j++)
{
if (database.items[j].itemID == id)
{
inventory = database.items[j];
stack*.stackCount = 1;*
}
}
break;

}
}
}
}
(…)
Thanks in advance.

2

please use code tags when you paste in code: Using code tags properly - Unity Engine - Unity Discussions

3

  1. Its called german. :wink:

  2. You are calling AddItem by class name. Therefore AddItem would need to be declared as static.

  3. You need to declare AddItem as public, otherwise you cant access it.
    → public static void AddItem( int id ) {}

  4. If you dont want to make AddItem static, you’d need to create an instance of the class which holds the method.

  5. Use code tags!

4

you might want to look at the latest unity youtube vid (i.e. by the unity peeps). It covers the basics of scripts “talking” to each other.

5

Its aswell about the basic concepts of programming he’s missing.

6

Use other.GetComponent().AddItem(1) instead to get the instance attached to the other object. You are trying to call a static method.