riversong code showcase

Source/Riversong/Game/World/BlockMap/BlockMap.cs

@@ -0,0 +1,37 @@
+using Unity.Collections;
+using Unity.Mathematics;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class BlockMap : NativeGrid<BlockReason>
+    {
+        public BlockMap(int2 size) : base(size, Allocator.Persistent)
+        {
+        }
+
+        public void AddReason(int2 tile, BlockReason reason)
+        {
+            SetValue(tile, GetValue(tile) | reason);
+        }
+
+        public void AddReason(int2 min, int2 max, BlockReason reason)
+        {
+            foreach (var tile in TileRange.From(min, max)) AddReason(tile, reason);
+        }
+
+        public void RemoveReason(int2 tile, BlockReason reason)
+        {
+            SetValue(tile, GetValue(tile) & ~reason);
+        }
+
+        public void RemoveReason(int2 min, int2 max, BlockReason reason)
+        {
+            foreach (var tile in TileRange.From(min, max)) RemoveReason(tile, reason);
+        }
+
+        public bool IsBlocked(int2 tile, BlockReason reason = BlockReason.Any)
+        {
+            return (GetValue(tile) & reason) != 0;
+        }
+    }
+}