Reduce the size of the move function

Easier to read.

Player.gd

@@ -51,17 +51,17 @@ func _ready():
 	posix = int (position.x / 64)
 	posiy = int (position.y / 64)
 
-	update_dirxy()
+	apply_turn()
 
 	tween.connect_into(self)
 
 func _unhandled_input(event):
 	if event.is_pressed():
 		if event.is_action(turn_left_action):
-			turn(Side.LEFT)
+			prepare_turn(Side.LEFT)
 			get_tree().set_input_as_handled()
 		elif event.is_action(turn_right_action):
-			turn(Side.RIGHT)
+			prepare_turn(Side.RIGHT)
 			get_tree().set_input_as_handled()
 
 func _on_game_start():
@@ -81,7 +81,7 @@ func generate_wall():
 	# TODO : use enum for blocks
 	grid.set_cell(posix - dirx, posiy - diry, 1)
 
-func turn(left_or_right:int):
+func prepare_turn(left_or_right:int):
 	var current_angle = (dire + dire_delta) * 90
 
 	dire_delta += left_or_right
@@ -97,24 +97,43 @@ func turn(left_or_right:int):
 	tween.rotate_char(self, current_angle, aim_angle)
 	tween.start()
 
+func can_turn():
+	return dire_delta != 0 and !has_block_on(dire_delta)
+
+func apply_turn():
+	dire += dire_delta
+	dire_delta = 0
+
+	if dire < 0:
+		dire = 3
+	elif dire > 3:
+		dire = 0
+
+	dirx = 0
+	diry = 0
+	if dire == Direction.UP:
+		diry -= 1
+	elif dire == Direction.RIGHT:
+		dirx += 1
+	elif dire == Direction.DOWN:
+		diry += 1
+	elif dire == Direction.LEFT:
+		dirx -= 1
+	else:
+		push_error("dire out of range")
+
 func move():
 	if !alive:
 		return
 
 	generate_wall()
 
-	if dire_delta != 0 and !has_block_on(dire_delta):
-		# TODO Undo sprite turn if blocked
-		dire += dire_delta
-		dire_delta = 0
-
-		if dire < 0:
-			dire = 3
-		elif dire > 3:
-			dire = 0
+	if can_turn():
+		apply_turn()
 
-		update_dirxy()
+	go_forward()
 
+func go_forward():
 	posix += dirx
 	posiy += diry
 
@@ -129,20 +148,6 @@ func has_block_on(left_or_right:int):
 	# TODO : use enum for blocks
 	return grid.get_cell(bposx, bposy) == 1
 
-func update_dirxy():
-	dirx = 0
-	diry = 0
-	if dire == Direction.UP:
-		diry -= 1
-	elif dire == Direction.RIGHT:
-		dirx += 1
-	elif dire == Direction.DOWN:
-		diry += 1
-	elif dire == Direction.LEFT:
-		dirx -= 1
-	else:
-		push_error("dire out of range")
-
 func die():
 	alive = false
 	remove_from_group("living")