fixed some issues

Class/ClmClass.gd

@@ -9,7 +9,7 @@ func get_highest_cube_height(cubeArray):
 	return 0
 
 func get_height_from_bottom(cubeArray):
-	for cubeNumber in 7:
+	for cubeNumber in 8:
 		if cubeArray[cubeNumber] == 0:
 			return cubeNumber
 	return 8

Scenes/Instances.gd

@@ -450,7 +450,7 @@ func erase_instances_loop(): # started by _ready()
 	erase_instances_loop()
 
 func kill_instance(id): # Multi-thread safe
-	id.visible = false
+	id.position = Vector2(rand_range(-10000000,-20000000),rand_range(-10000000,-20000000)) # Stacking them on the same position causes lag for some reason.
 	for group in id.get_groups():
 		id.remove_from_group(group)
 	instances_to_erase.append(id)

Scenes/OverheadGraphics.gd

@@ -65,11 +65,12 @@ func overhead2d_update_rect_single_threaded(shapePositionArray):
 	for pos in shapePositionArray:
 		var basePosX = pos.x * 3
 		var basePosY = pos.y * 3
+		var slabID = oDataSlab.get_cellv(pos)
 		for i in range(9):  # 3x3 subtiles
 			var x = basePosX + (i % 3)
 			var y = basePosY + (i / 3)
 			var clmIndex = oDataClmPos.get_cell_clmpos(x, y)
-			var cubeFace = oDataClm.get_top_cube_face(clmIndex, 0)
+			var cubeFace = oDataClm.get_top_cube_face(clmIndex, slabID)
 			var pixelIndex = ((y * width) + x) * 3
 
 			pixel_data[pixelIndex] = cubeFace >> 16 & 255
@@ -111,11 +112,12 @@ func generate_pixel_data(pixData, shapePositionArray):
 	for pos in shapePositionArray:
 		var basePosX = pos.x * 3
 		var basePosY = pos.y * 3
+		var slabID = oDataSlab.get_cellv(pos)
 		for i in range(9):  # 3x3 subtiles
 			var x = basePosX + (i % 3)
 			var y = basePosY + (i / 3)
 			var clmIndex = oDataClmPos.get_cell_clmpos(x, y)
-			var cubeFace = oDataClm.get_top_cube_face(clmIndex, 0)
+			var cubeFace = oDataClm.get_top_cube_face(clmIndex, slabID)
 			var pixelIndex = ((y * width) + x) * 3
 
 			pixData[pixelIndex] = cubeFace >> 16 & 255