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This question was closed Sep 15, 2014 at 05:56 PM by Landern for the following reason:

Duplicate Question

avatar image
0
Question by Cherno · Sep 15, 2014 at 05:51 PM · instance

inventory class troubles :(

Sorry for the vague title, it's hard to explain in one sentence but it's not complex either.

I have a custom class for items, with a few values like value and damage. I also have a list of some instances of these classes, acting as an inventory. Of course it's possible that the lists contains multiple instances that have the same values (but should really be distinct items).

There could be two daggers with the same values and one sword with different values, for example.

Herein lies the problem: Wheniver I access one of the instances in the list to change, say, the damage, all other instances that share the same values get changed as well! Why? :(

using UnityEngine; using System.Collections; using System.Collections.Generic;

public class test : MonoBehaviour {

 [System.Serializable]
 public class Item {
     public string name;
     public int value;
     public int damage;
 }

 public Item daggerTemplate = new Item { name = "Dagger", value = 10, damage = 20 };
 public Item swordTemplate = new Item { name = "Sword", value = 100, damage = 50 };

 public List<Item> inventory;

 void Start() {

     inventory = new List<Item>();
     Item item1 = daggerTemplate;
     item1.value = 2;//this causes all other daggers to change their value to 2 as well
     inventory.Add(item1);

     Item item2 = daggerTemplate;
     inventory.Add(item2);

     Item item3 = swordTemplate;
     blubbListinventory.Add(item3);

 }

}

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avatar image Landern · Sep 15, 2014 at 05:58 PM 0
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You posted tot he wrong one, you posted your question twice.

avatar image Cherno · Sep 15, 2014 at 06:26 PM 0
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Sorry, I didn't mean to.

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