TileEntitiesManager.cs

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using System.Collections.Generic;
using Terraria.GameContent.Tile_Entities;
 
namespace Terraria.DataStructures;
 
public class TileEntitiesManager
{
    private int _nextEntityID;
 
    private Dictionary<int, TileEntity> _types = new Dictionary<int, TileEntity>();
 
    private int AssignNewID()
    {
        return _nextEntityID++;
    }
 
    private bool InvalidEntityID(int id)
    {
        if (id >= 0)
        {
            return id >= _nextEntityID;
        }
        return true;
    }
 
    public void RegisterAll()
    {
        Register(new TETrainingDummy());
        Register(new TEItemFrame());
        Register(new TELogicSensor());
        Register(new TEDisplayDoll());
        Register(new TEWeaponsRack());
        Register(new TEHatRack());
        Register(new TEFoodPlatter());
        Register(new TETeleportationPylon());
    }
 
    public void Register(TileEntity entity)
    {
        int num = AssignNewID();
        _types[num] = entity;
        entity.RegisterTileEntityID(num);
    }
 
    public bool CheckValidTile(int id, int x, int y)
    {
        if (InvalidEntityID(id))
        {
            return false;
        }
        return _types[id].IsTileValidForEntity(x, y);
    }
 
    public void NetPlaceEntity(int id, int x, int y)
    {
        if (!InvalidEntityID(id) && _types[id].IsTileValidForEntity(x, y))
        {
            _types[id].NetPlaceEntityAttempt(x, y);
        }
    }
 
    public TileEntity GenerateInstance(int id)
    {
        if (InvalidEntityID(id))
        {
            return null;
        }
        return _types[id].GenerateInstance();
    }
}