Re-add the proper Grid.gd and Pawn.gd files

2d/role_playing_game/grid_movement/grid/Grid.gd

@@ -0,0 +1,36 @@
+extends TileMap
+
+enum CELL_TYPES { ACTOR, OBSTACLE, OBJECT }
+export(NodePath) var dialogue_ui
+
+func _ready():
+	for child in get_children():
+		set_cellv(world_to_map(child.position), child.type)
+
+
+func get_cell_pawn(cell, type = ACTOR):
+	for node in get_children():
+		if node.type != type:
+			continue
+		if world_to_map(node.position) == cell:
+			return(node)
+
+
+func request_move(pawn, direction):
+	var cell_start = world_to_map(pawn.position)
+	var cell_target = cell_start + direction
+	
+	var cell_tile_id = get_cellv(cell_target)
+	match cell_tile_id:
+		-1:
+			set_cellv(cell_target, ACTOR)
+			set_cellv(cell_start, -1)
+			return map_to_world(cell_target) + cell_size / 2
+		OBJECT, ACTOR:
+			var target_pawn = get_cell_pawn(cell_target, cell_tile_id)
+			print("Cell %s contains %s" % [cell_target, target_pawn.name])
+			
+			if not target_pawn.has_node("DialoguePlayer"):
+				return
+			get_node(dialogue_ui).show_dialogue(pawn, target_pawn.get_node("DialoguePlayer"))
+			

2d/role_playing_game/grid_movement/pawns/Pawn.gd

@@ -0,0 +1,11 @@
+extends Node2D
+
+enum CELL_TYPES { ACTOR, OBSTACLE, OBJECT }
+export(CELL_TYPES) var type = ACTOR
+
+var active = true setget set_active
+
+func set_active(value):
+	active = value
+	set_process(value)
+	set_process_input(value)