namespace VoxelEngine.World.Blocks;

public sealed class BlockRegistry
{
    private readonly IBlock[] _byId;

    public AirBlock Air { get; } = new();
    public StoneBlock Stone { get; } = new();
    public DirtBlock Dirt { get; } = new();
    public GrassBlock Grass { get; } = new();
    public SandBlock Sand { get; } = new();
    public SnowBlock Snow { get; } = new();
    public WaterBlock Water { get; } = new();

    public BlockRegistry()
    {
        // Index by id. Order does not matter; slot = block.Id.
        IBlock[] blocks = new IBlock[]
            { this.Air, this.Stone, this.Dirt, this.Grass, this.Sand, this.Snow, this.Water };
        this._byId = new IBlock[blocks.Length];
        foreach (IBlock block in blocks)
        {
            this._byId[block.Id] = block;
        }
    }

    public IBlock Get(ushort id) => this._byId[id];
}