Android Kivi plyer and accelerometer
laurent morel
In inspiration of Pong Tutorial with Kivy , we are trying to move the ball with plyer accelerometer.
Here is the code but i have got some mistakes :
TypeError : 'kivy.properties.ReferenceListProperty' Object is not iterable
The code :
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.properties import NumericProperty, ReferenceListProperty, ObjectProperty
from kivy.vector import Vector
from kivy.clock import Clock
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.label import Label
from kivy.graphics import *
from plyer import accelerometer
class LabBall(Widget):
def __init__(self, **kwargs):
super(LabBall, self).__init__(**kwargs)
self.velocity_x = NumericProperty(0)
self.velocity_y = NumericProperty(0)
self.velocity = ReferenceListProperty(self.velocity_x, self.velocity_y)
self.acc_x = NumericProperty(0)
self.acc_y = NumericProperty(0)
val = accelerometer.acceleration[:3]
if val == (None, None, None):
self.acc_x=0
self.acc_y=0
else :
self.acc_x= accelerometer.acceleration[0]
self.acc_y= accelerometer.acceleration[1]
self.acc =ReferenceListProperty(self.acc_x,self.acc_y)
def move(self):
self.velocity = Vector(self.acc)+Vector(self.velocity)
self.pos = Vector(*self.velocity) + self.pos
class LabGame(Widget):
ball = ObjectProperty(None)
def __init__(self, **kwargs):
super(LabGame, self).__init__(**kwargs)
self.murs_verts = [[[0, 0], [0, self.height]], [[self.width, 0], [self.width, self.height]]]
self.murs_horiz = [[[0, 0], [self.width, 0]], [[0, self.height], [self.width, self.height]]]
def serve_ball(self, vel=(0,0)):
self.ball.center = self.center
self.ball.velocity = vel
def update(self, dt,**kwargs):
super(LabGame, self).__init__(**kwargs)
self.ball.move()
class LabApp(App):
def build(self):
game = LabGame()
game.serve_ball()
Clock.schedule_interval(game.update, 1.0 / 60.0)
return game
if __name__ == '__main__':
LabApp().run()
If i chage the line : self.velocity = Vector(self.acc)+Vector(self.velocity) to self.velocity = Vector(*self.acc)+Vector(*self.velocity)
I have the message : Type Object argument after * must be a sequence, not kivy.properties.ReferenceListPropertiy
Sombody please can help us
Thanks a lot
Fari Tigar
laurent morel
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