Fix Python logic in pong example

Author: touilleMan

examples/pong/logic/ball.py

@@ -15,15 +15,15 @@ class Ball(classes.Area2D):
     def __init__(self):
         super().__init__()
         self._speed = self.DEFAULT_SPEED
-        self.direction = Vector2.LEFT
+        self.direction = Vector2.LEFT()
         self._initial_pos = Vector2()
 
     def _ready(self):
         self._initial_pos = self.position
 
     def _process(self, delta: float) -> None:
         self._speed += delta * 2
-        self.position += self._speed * delta * self.direction
+        self.position += self.direction * (self._speed * delta)
 
     def reset(self) -> None:
         self.direction = Vector2.LEFT

examples/pong/logic/paddle.py

@@ -13,6 +13,13 @@ class Paddle(classes.Area2D):
     _down: GDString
     _screen_size_y: float
 
+    def __init__(self):
+        super().__init__()
+        self._ball_dir = 1
+        self._up = GDString()
+        self._down = GDString()
+        self._screen_size_y = 0
+
     def _ready(self) -> None:
         self._screen_size_y = self.get_viewport_rect().size.y
         n = self.name.to_lower()
@@ -25,9 +32,9 @@ def _ready(self) -> None:
 
     def _process(self, delta: float) -> None:
         # Move up and down based on input.
-        self.input = Input.get_action_strength(self._down) - Input.get_action_strength(self._up)
+        input_dir = Input.get_action_strength(self._down) - Input.get_action_strength(self._up)
         self.position.y = utils.clamp(
-            self.position.y + input * self.MOVE_SPEED * delta, 16, self._screen_size_y - 16
+            self.position.y + input_dir * self.MOVE_SPEED * delta, 16, self._screen_size_y - 16
         )
 
     def _on_area_entered(self, area: classes.Area2D) -> None:

examples/pong/pong.tscn

@@ -1,8 +1,7 @@
-[gd_scene load_steps=12 format=3 uid="uid://1edquvuh4xlu"]
+[gd_scene load_steps=11 format=3 uid="uid://1edquvuh4xlu"]
 
 [ext_resource type="Script" uid="uid://bbiup6xhh6s17" path="res://logic/paddle.gd" id="1"]
 [ext_resource type="Texture2D" uid="uid://ybn78qkuq21d" path="res://paddle.png" id="2"]
-[ext_resource type="Script" uid="uid://c2ofwebuaqwtq" path="res://logic/ball.gd" id="4"]
 [ext_resource type="Texture2D" uid="uid://bcir5xteju0j5" path="res://ball.png" id="5"]
 [ext_resource type="Texture2D" uid="uid://7rr8ipvil66w" path="res://separator.png" id="6"]
 [ext_resource type="Script" uid="uid://d0ctwatj03r3b" path="res://logic/wall.gd" id="7"]
@@ -49,9 +48,8 @@ texture = ExtResource("2")
 [node name="Collision" type="CollisionShape2D" parent="Right"]
 shape = SubResource("1")
 
-[node name="Ball" type="Area2D" parent="."]
+[node name="Ball" type="Ball" parent="."]
 position = Vector2(320.5, 191.124)
-script = ExtResource("4")
 
 [node name="Sprite2D" type="Sprite2D" parent="Ball"]
 texture = ExtResource("5")