Everyone Loves Large Chests^K^K Treasure — Make It Exciting

Let’s set up a treasure chest. I have this sci-fi container from Filebase that conveniently has a lid with an appropriate pivot point (I wish that every one of them had that set up properly…)

Let’s set up some loot for the player to grab. We’ll create a script for chests and attach it. Functionally, it’s going to look a lot like our door.

public class ChestScript : MonoBehaviour
{
    Animator _animator;
    int _isOpenHash;
    [SerializeField] bool _isOperable = true;
    [SerializeField] string _cannotOperateMessage = "Can't do that, boss";

    private void Awake()
    {
        _animator = GetComponent<Animator>();
        Assert.IsNotNull(_animator);
        _isOpenHash = Animator.StringToHash("IsOpen");
    }

    public void OperateChest(bool isOpen)
    {
        if (_isOperable)
        {
            _animator.SetBool(_isOpenHash, isOpen);
        }
        else
        {
            Debug.Log(_cannotOperateMessage);
        }
    }

    public void ToggleChest()
    {
        if (_isOperable)
        {
            bool isOpen = _animator.GetBool(_isOpenHash);
            _animator.SetBool(_isOpenHash, !isOpen);
        }
        else
        {
            Debug.Log(_cannotOperateMessage);
        }
    }

    public void SetChestOperable(bool isOperable)
    {
        _isOperable = isOperable;
    }
}

We’ll add an Interactable component to it and set it to toggle the Chest state of being open or not.

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That works. Next, let’s add some treasure. We only want it to spawn once, upon opening. There’s a number of ways to do this, but I’m going to spawn the items in a list, one by one, at a spawn point.

public class TreasureScript : MonoBehaviour
{
    [SerializeField] GameObject[] _treasureList;
    [SerializeField] Transform _spawnPoint;
    [SerializeField] [Range(0.1f, 5f)] float _spawnInterval;

    private WaitForSeconds _spawnTimer;

    private bool _hasDispensed = false;

    private void Awake()
    {
        _spawnTimer = new WaitForSeconds(_spawnInterval);
    }

    public void SpawnTreasure()
    {
        if (_hasDispensed) return;

        _hasDispensed = true;

        StartCoroutine(SequentiallySpawn());        
    }

    private IEnumerator SequentiallySpawn()
    {
        foreach (GameObject treasure in _treasureList)
        {
            Instantiate(treasure, _spawnPoint);
            yield return _spawnTimer;
        }
    }
}

We’ll set our chest up with some cubes with particle effects and a spawn point.

And, on interaction…

OK, kind of goofy, but it suffices.