extends Node3D
class_name Tile

var id = null

#This tile's current construction and selection modes.
var construction_mode = 0
var selection_mode = 0

var orange = preload("res://tiles/base_tile/orange.tres")
var gray = preload("res://tiles/base_tile/gray.tres")
var red = preload("res://tiles/base_tile/red.tres")
var blue = preload("res://tiles/base_tile/blue.tres")
var lightblue = preload("res://tiles/base_tile/lightblue.tres")

#Lists of possible states for various modes.
enum SEL_MODE {NONE, ROOM, BUILD, INVALID}

enum CON_MODE {NONE, NON_INTERACTABLE, CLOSED, OPEN, BUILT, REINFORCED, CONSTRUCTION}

enum DIRECTION {NORTH, EAST, SOUTH, WEST}

enum FACE_MODE {NONE, FULL, PARTIAL, DOOR}

var direction_vector_array = [
#		North
		Vector3i(0, 0, -1),
#		East		
		Vector3i(1, 0, 0),
#		South
		Vector3i(0, 0, 1),
#		West
		Vector3i(-1, 0, 0),
	]

var wall_position_array = [
#	North
	Vector3i(0, 0, 0),
#	East
	Vector3i(1, 0, 0),
#	South
	Vector3i(1, 0, 1),
#	West
	Vector3i(0, 0, 1),
]

var load_wall = preload("res://tiles/base_tile/base_wall.tscn")

var grid_pos = null

var wall_dict = {}

var room_id = null

signal wall_built

func _ready():
	$Label3D.text = str(grid_pos)
	pass

func invalid_this_tile():
	pass

func update_face(direction, mode, door = null):
#Updates the faces of this tile.
	var face = direction_vector_array[direction]
	
	if mode == FACE_MODE.NONE:
		for i in wall_dict.keys():
			wall_dict[i].queue_free()
			wall_dict.erase(i)
		
	if mode == FACE_MODE.FULL:
		if not wall_dict.has(face):
			
			var wall = load_wall.instantiate()
		
			wall.position = wall_position_array[direction]

			wall.rotation_degrees = Vector3(0, direction * -90, 0)
			
			wall_dict[face] = wall
			
			emit_signal("wall_built", room_id)
			
			add_child(wall)
			
	if mode == FACE_MODE.DOOR:
		wall_dict[face].queue_free()
		wall_dict.erase(face)
		wall_dict[face] = door


func update(sel_mode: int = SEL_MODE.NONE, con_mode: int = CON_MODE.NONE):
#Updates the selection and construction modes of this tile.

	if sel_mode != selection_mode:
		
		selection_mode = sel_mode
		
		if sel_mode == SEL_MODE.NONE:
			$Floor/FloorMesh.set_material_overlay(null)
			
		elif sel_mode == SEL_MODE.ROOM:
			for i in $Walls.get_children():
				i.Mesh.set_material_override(orange)
				
		elif sel_mode == SEL_MODE.BUILD:
			$Floor/FloorMesh.set_material_overlay(lightblue)
			
		elif sel_mode == SEL_MODE.INVALID:
			$Floor/FloorMesh.set_material_overlay(orange)

		else:
				pass
				
	if con_mode:
		if con_mode != construction_mode:
			
			construction_mode = con_mode
			
			if con_mode == CON_MODE.NON_INTERACTABLE:
				pass
				
			elif con_mode == CON_MODE.CLOSED:
				$Floor/FloorMesh.set_material_override(gray)
				pass
				
			elif con_mode == CON_MODE.OPEN:
				pass
			
			elif con_mode == CON_MODE.BUILT:
				$Floor/FloorMesh.set_material_override(null)
				pass
			
			elif con_mode == CON_MODE.REINFORCED:
				pass
				
			elif con_mode == CON_MODE.CONSTRUCTION:
				pass
				
			else:
				pass