Make player moving by orientation

Change orientation with left and right key, and go forward with upper
key.

Player.gd

@@ -1,11 +1,27 @@
 extends Area2D
 
 var direction = Vector2()
+
 const DEG_UP = 0
 const DEG_RIGHT = 90
 const DEG_DOWN = 180
 const DEG_LEFT = 270
 
+const DEG_LIST = [DEG_UP, DEG_RIGHT, DEG_DOWN, DEG_LEFT]
+
+const DIR_UP = 0
+const DIR_RIGHT = 1
+const DIR_DOWN = 2
+const DIR_LEFT = 3
+
+var posix
+var posiy
+
+var dirx = 0
+var diry = 0
+
+var dire = DIR_UP
+
 var grid
 
 var blocks = []
@@ -19,27 +35,34 @@ var raycast
 func _ready():
 	grid = get_parent()
 	
-	turn(Vector2(0,1))
+	posix = int (position.x / 64)
+	posiy = int (position.y / 64)
+	
+	turn(DIR_UP)
 	pass
 
 func _physics_process(delta):
-	direction = Vector2()
 		
-	if Input.is_action_pressed("ui_up"):
-		direction.y -= 1
-	elif Input.is_action_pressed("ui_down"):
-		direction.y += 1
-	elif Input.is_action_pressed("ui_left"):
-		direction.x -= 1
+	if Input.is_action_pressed("ui_left"):
+		dire -= 1
+		if dire < 0:
+			dire = 3
+		update_avatar_dir()
+
 	elif Input.is_action_pressed("ui_right"):
-		direction.x += 1
-	
-	if direction != Vector2():
+		dire += 1
+		if dire > 3:
+			dire = 0
+		update_avatar_dir()
+
+	if Input.is_action_pressed("ui_up"):
 		
-		turn(direction)
+		turn(dire)
 		
 		if !raycast.is_colliding():
-			position = get_position() + direction * grid.get_cell_size()
+			posix += dirx
+			posiy += diry
+			position = Vector2(posix * 64 + 32, posiy * 64 + 32)
 	pass
 
 func _on_area_entered(a):
@@ -54,13 +77,22 @@ func _on_area_exited(a):
 	is_blocked = blocks.size()
 	pass
 	
-func turn(dir:Vector2):
-	if dir.y < 0:
+func turn(dir:int):
+	dirx = 0
+	diry = 0
+	if dir == DIR_UP:
 		raycast=get_node(rayU)
-	elif dir.x < 0:
-		raycast=get_node(rayL)
-	elif dir.x > 0:
+		diry -= 1
+	elif dir == DIR_RIGHT:
 		raycast=get_node(rayR)
-	else:
+		dirx += 1
+	elif dir == DIR_DOWN:
 		raycast=get_node(rayD)
+		diry += 1
+	else:
+		raycast=get_node(rayL)
+		dirx -= 1
 	pass
+
+func update_avatar_dir():
+	$Sprite.rotation_degrees = DEG_LIST[dire]

Player.tscn

@@ -7,7 +7,6 @@
 extents = Vector2( 16, 16 )
 
 [node name="Player" type="Area2D"]
-position = Vector2( 544, 224 )
 script = ExtResource( 1 )
 rayU = NodePath("RayUp")
 rayD = NodePath("RayDown")