cirnogodot/Scripts/Chest.cs

namespace Cirno.Scripts;

public partial class Chest : Activable
{
    private InventoryManager inventoryManager;
    
    
    public override void _Ready()
    {
        inventoryManager = GetNode<InventoryManager>("/root/GameScene/InventoryManager");
    }
	
    public override void Activate()
    {
        inventoryManager.AddRedKeycard();
        GetParent().QueueFree();
    }
}