gdnative_python/examples/pong/paddle.py

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from random import random
from godot import exposed, export, Vector2, GDString, Area2D, Input
MOTION_SPEED = 150
@exposed
class Paddle(Area2D):
left = export(bool, default=False)
action_prefix = export(str, default="")
can_move = export(bool, default=False)
def _ready(self):
self.motion = 0
self.can_move = True
self.screen_size = self.get_viewport_rect().size
self.set_process(True)
def _process(self, delta):
motion = 0
if Input.is_action_pressed(self.action_prefix + GDString("_move_up")):
motion -= 1
elif Input.is_action_pressed(self.action_prefix + GDString("_move_down")):
motion += 1
motion *= MOTION_SPEED
if self.can_move:
self.translate(Vector2(0, motion * delta))
# set screen limits
if self.position.y < 0:
self.position.y = 0
elif self.position.y > self.screen_size.y:
self.position.y = self.screen_size.y
def _on_paddle_area_enter(self, area):
# random for new direction generated on each peer
area.bounce(self.left, random())