riversong-code-showcase/Source/Riversong/Game/World/EntityIdMap/EntityIdMap.cs

using System;
using Unity.Collections;
using Unity.Mathematics;

namespace DanieleMarotta.RiversongCodeShowcase
{
    public class EntityIdMap : IDisposable
    {
        private NativeGrid<EntityIdMapValue> _data;

        public EntityIdMap(int2 size)
        {
            _data = new NativeGrid<EntityIdMapValue>(size, Allocator.Persistent);
        }

        public void Dispose()
        {
            _data?.Dispose();
            _data = null;
        }

        public void SetBuildingId(TileRect rect, int id)
        {
            foreach (var tile in TileRange.From(rect))
            {
                ref var value = ref _data.GetValueRW(tile);
                value.BuildingId = id;
            }
        }

        public void SetResourceNodeId(int2 tile, int id)
        {
            ref var value = ref _data.GetValueRW(tile);
            value.ResourceNodeId = id;
        }

        public ref EntityIdMapValue GetValueRW(int2 tile)
        {
            return ref _data.GetValueRW(tile);
        }

        public NativeArray<EntityIdMapValue> GetNativeArray()
        {
            return _data.GetNativeArray();
        }
    }
}