extends TileMapLayer

var tiles: Dictionary = {}
var idx: int = 0
var dirs: Array[int] = [
	TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE,
	TileSet.CELL_NEIGHBOR_RIGHT_SIDE,
	TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE,
	TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE,
	TileSet.CELL_NEIGHBOR_LEFT_SIDE,
	TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE,
]

func render_next() -> void:
	print("rendering {i}")
	set_cell(get_neighbor_cell(Vector2i(0, 0), dirs[idx]), 0, Vector2i(0, 1))
	idx = (idx + 1) % 6

func get_tile_colour(pos: Vector2i) -> int:
	return tiles.get_or_add(pos, 0)

# TODO: state sh1ould be an enum probably
func set_tile(pos: Vector2i, state: int) -> void:
	print("setting cell (%s) at %d %d\n" % [state, pos.x, pos.y])
	set_cell(pos, 0, Vector2i(0, state))
	tiles.erase(pos)
	tiles.get_or_add(pos, state)
		
#var direction = 0
#var antPos = Vector2i(0,0)
#var grid = {}
#var tileSize = 16
#
## Called when the node enters the scene tree for the first time.
#func _ready() -> void:
	#set_process(true)
	#grid[antPos] = 0
	#updateTile(antPos, 0)
#
#func updateTile(pos: Vector2i, col: int):
	#var tileCol = Color.WHITE if col == 0 else Color.BLACK
	#var tileRect = ColorRect.new()
	#tileRect.color = tileCol
	#tileRect.size = Vector2(tileSize, tileSize)
	#tileRect.position = Vector2(pos.x * tileSize, pos.y * tileSize)
	#add_child(tileRect)
	#
#
## Called every frame. 'delta' is the elapsed time since the previous frame.
#func _process(delta: float) -> void:
	#moveAnt()	
#
#func moveAnt():
	#var curCol = grid.get(antPos, 0)
	#
	#if curCol == 0:
		#direction = (direction + 1) % 4
	#else:
		#direction = (direction + 3) % 4
		#
	#grid[antPos] = 1 - curCol
	#updateTile(antPos, grid[antPos])
	#
	#match direction:
		#0:
			#antPos.y -= 1 
		#1:
			#antPos.x += 1
		#2:
			#antPos.y += 1
		#3:
			#antPos.x -= 1
			#
	#if not grid.has(antPos):
		#grid[antPos] = 0