riversong code showcase

Source/Riversong/Game/WorldGen/ChunkGenerators/CropsGrassTileMask.cs

@@ -0,0 +1,14 @@
+using Unity.Collections;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public struct CropsGrassTileMask : IGrassTileMask
+    {
+        public NativeArray<FertilityMapValue> Fertility;
+
+        public bool CanGenerateAtTile(int tileIndex)
+        {
+            return Fertility[tileIndex].MaxFertility > 0;
+        }
+    }
+}