Matching and stacking

Learn to match and stack identical items.

The stack idea

Items of the same type are gathered in one slot as a stack. For example 5 apples sit in one slot; the slot count does not rise. Every slot has a stack limit and this limit is not exceeded.

int yiginAdedi = 5;
int yiginLimiti = 10;

This way inventory space is not wasted.

Matching

Understanding whether two items are the same is called matching. If the item type and the name are the same, they can be merged. Items of different types never enter the same stack.

bool eslesme = (birAd == ikiAd);

Matching is the first step of the merge operation.

Exercise Merge the stacks

In a class named YiginBirlestir, define an int birAdet field with the value 3 and an int ikiAdet field with the value 5. In the Start method, add these two values and assign the result to an integer named toplam. Print the text "Toplam yigin: " joined with toplam using Debug.Log.

Show example solution

using UnityEngine;

public class YiginBirlestir : MonoBehaviour
{
    int birAdet = 3;
    int ikiAdet = 5;

    void Start()
    {
        int toplam = birAdet + ikiAdet;
        Debug.Log("Toplam yigin: " + toplam);
    }
}

Test yourself

What happens when 5 apples are added to the inventory?
```
int yiginAdedi = 5;
```
- The 5 apples stack in a single slot
- The slot count rises automatically
- 5 separate slots are used
- The items do not fit in the inventory
Show answer

The 5 apples stack in a single slot — Items of the same type stack in one slot; the slot count rises with the number of types, not with the item count.

Complete the merge operation

    int toplamYigin = 3 ____ 5;

Show answer

    int toplamYigin = 3 + 5;

Merge terms

Stack

A pile of the same items
Merge

Combining two stacks
Match

Finding that items are the same
Yığın limiti

The maximum count a slot carries

Next lesson: Inventory UI

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