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import scene
import copy
import math
import ui
class Paddle(scene.ShapeNode):
def __init__(self, x, y, parent=None):
path = ui.Path.rect(0,0, 40, 200)
super(Paddle, self).__init__(path, position=(x, y), fill_color='green', parent=parent)
self.touch = None
def touch_began(self, touch):
if touch.location in (self.frame):
if not self.touch:
self.touch = copy.copy(touch)
def touch_moved(self, touch):
if self.touch and touch.touch_id == self.touch.touch_id:
dx = touch.location.y - self.touch.location.y
if abs(dx*1.0) > 5:
self.touch.location.y = touch.location.y
self.position = (self.position[0], touch.location.y)
def touch_ended(self, touch):
if self.touch and touch.touch_id == self.touch.touch_id:
self.touch = None
class Ball(scene.ShapeNode):
def __init__(self, x, y, parent=None):
path = ui.Path.oval(0,0, 10, 10)
super(Ball, self).__init__(path, position=(x, y), fill_color='red', parent=parent)
self.dx, self.dy = 5, 0
def update(self):
self.position = (self.position[0] + self.dx,
self.position[1]+self.dy)
if (self.position[1] > self.parent.bounds.h) or (self.position[1] < 0) :
self.dy = -self.dy
return
if (self.frame.x > self.parent.bounds.w):
self.dx, self.dy = 5, 0
self.position = (400, 300)
self.parent.score_left.increment()
return
if (self.frame.x < 0):
self.dx, self.dy = -5, 0
self.position = (400, 300)
self.parent.score_right.increment()
return
if self.frame.intersects(self.parent.paddle_left.frame):
self.dx = -self.dx
h = self.parent.paddle_left.frame.h/2
self.dy += (self.frame.y+self.frame.h/2 - (self.parent.paddle_left.frame.y+h))*1.0/h*5
if self.frame.intersects(self.parent.paddle_right.frame):
self.dx = -self.dx
h = self.parent.paddle_right.frame.h/2
self.dy += (self.frame.y+self.frame.h/2 - (self.parent.paddle_right.frame.y+h))*1.0/h*5
class Score(object):
def __init__(self, x, y, parent=None):
self.value = 0
self.label = scene.LabelNode(
"{}".format(self.value),
position=(x, y),
font=('Helvetica', 40),
parent=parent)
def increment(self):
self.value += 1
self.label.text = "{}".format(self.value)
def reset(self):
self.value = 0
self.label.text = "{}".format(self.value)
class Pong(scene.Scene):
def setup(self):
self.paddle_left = Paddle(50, self.size[1]/2.0, parent=self)
self.paddle_right = Paddle(self.size[0]-50, self.size[1]/2.0, parent=self)
self.ball = Ball(self.size[0]/2.0, self.size[1]/2.0, parent=self)
self.score_left = Score(self.size[0]*.25, 25, parent=self)
self.score_right = Score(self.size[0]*.75, 25, parent=self)
def update(self):
self.ball.update()
def touch_began(self, touch):
self.paddle_left.touch_began(touch)
self.paddle_right.touch_began(touch)
def touch_moved(self, touch):
self.paddle_left.touch_moved(touch)
self.paddle_right.touch_moved(touch)
def touch_ended(self, touch):
self.paddle_left.touch_ended(touch)
self.paddle_right.touch_ended(touch)
scene.run(Pong(), show_fps=True)
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