JSON fixes. Grids

src/Core/Entity.bf

@@ -301,6 +301,26 @@ namespace Strawberry
 			return SceneHitbox.Intersects(rect);
 		}
 
+		public bool Check(Scene scene)
+		{
+			return scene.SolidGrid != null && Check(scene.SolidGrid);
+		}
+
+		public bool Check(Scene scene, Point offset)
+		{
+			return scene.SolidGrid != null && Check(scene.SolidGrid, offset);
+		}
+
+		public bool Check(Grid grid)
+		{
+			return grid.Check(SceneHitbox);
+		}
+
+		public bool Check(Grid grid, Point offset)
+		{
+			return grid.Check(SceneHitbox + offset);
+		}
+
 		public bool Check(Entity other)
 		{
 			return other.Collidable && SceneHitbox.Intersects(other.SceneHitbox);

src/Core/Scene.bf

@@ -6,6 +6,7 @@ namespace Strawberry
 	public class Scene
 	{
 		public float TimeStarted { get; private set; }
+		public Grid SolidGrid;
 
 		private List<Entity> entities;
 		private HashSet<Entity> toRemove;
@@ -20,6 +21,9 @@ namespace Strawberry
 
 		public ~this()
 		{
+			if (SolidGrid != null)
+				delete SolidGrid;
+
 			for (var e in entities)
 				if (e.DeleteOnRemove)
 					delete e;