Hi. I'm rather new to Python and very new to Pyglet, but I've been
messing around with it for a couple of days now. It's looking like a
rather awesome multimedia library, but I've got one problem. I've
basically got a sprite that's movable with the keyboard keys but the
movement is a bit slow and sluggish. However, if I keep moving the
mouse over the window at the same time as I'm using the keys, the game
runs fast and exactly the way I want it to run. I'm rather sure I've
messed up something here but I'm not really sure where. Am I using the
event structure correctly or is it something else? Here's the code:
import pyglet
from pyglet import clock
from pyglet.window import key
MOV = 8
class GameWindow(pyglet.window.Window):
def __init__(self, x, y):
"""Initialising the game window"""
super(GameWindow, self).__init__(width=x, height=y)
self.set_caption("Test")
def on_draw(self):
self.clear()
background.draw()
ship.update()
def on_key_press(self, symbol, modifiers):
if symbol == key.UP:
ship.move_y(MOV)
elif symbol == key.DOWN:
ship.move_y(-MOV)
elif symbol == key.RIGHT:
ship.move_x(MOV)
elif symbol == key.LEFT:
ship.move_x(-MOV)
def on_key_release(self, symbol, modifiers):
if symbol == key.UP:
ship.move_y(-MOV)
elif symbol == key.DOWN:
ship.move_y(MOV)
elif symbol == key.RIGHT:
ship.move_x(-MOV)
elif symbol == key.LEFT:
ship.move_x(MOV)
class BaseSprite(object):
def __init__(self, x, y):
self.x = x
self.y = y
self.dx = 0
self.dy = 0
def draw(self):
self.sprite.blit(self.x, self.y)
def update(self):
self.x, self.y = self.x + self.dx, self.y + self.dy
self.draw()
class Player(BaseSprite):
def __init__(self, x, y):
super(Player, self).__init__(x, y)
self.sprite = pyglet.image.load("ship.png")
def move_x(self, dx):
self.dx += dx
print "x is", self.dx
def move_y(self, dy):
self.dy += dy
print "y is", self.dy
class StaticSprite(BaseSprite):
def __init__(self, x, y):
super(StaticSprite, self).__init__(x,y)
self.sprite = pyglet.image.load("background.jpg")
if __name__ == "__main__":
background = StaticSprite(0, 0)
ship = Player(150, 150)
window = GameWindow(800,600)
pyglet.app.run()
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