我是 Pyglet 的新手,我编写了一个小程序,可以在屏幕上移动一个球。现在我很难建立 60 fps 的稳定帧速率。虽然 Pyglet 应该与我的显示器的 60Hz 刷新率同步,但 Pyglet 将我的 fps 设置为刷新率的一半(例如,当 60Hz、30 fps 时)。我的代码中是否有问题导致了这种情况?
import pyglet
import physicalobject
import random
from pyglet.window import mouse
pyglet.resource.path = ['./resources']
pyglet.resource.reindex()
ball_image = pyglet.resource.image("ball2.png")
#sets clock format
fps_display = pyglet.clock.ClockDisplay(format='%(fps).2f fps')
def center_image(image):
image.anchor_x = image.width/2
image.anchor_y = image.height/2
center_image(ball_image)
ball = physicalobject.PhysicalObject(img=ball_image, x = 400, y = 300)
ball.scale = .2
ball.velocity_x = random.randint(-4,4)*150
ball.velocity_y = random.randint(-4,4)*150
#Calls update function to set new ball position based on velocity
def update(dt):
ball.update(dt)
@window.event
def on_mouse_drag(x, y, dx, dy, button, modifiers):
ball.x = x
ball.y = y
ball.velocity_x = dx * 20
ball.velocity_y = dy * 20
@window.event
def on_draw():
window.clear()
ball.draw()
fps_display.draw()
def main():
pyglet.clock.schedule_interval(update, 1/120.0)
pyglet.app.run()
if __name__ == '__main__':
main()
Pyglet 在某些系统上根本无法正确处理它,您必须禁用应用程序窗口的垂直同步才能使其正常工作。下面是一个示例脚本,您可以运行它来了解它的工作原理:
import pyglet
# Show FPS
fps = pyglet.clock.ClockDisplay()
# The game window
class Window(pyglet.window.Window):
def __init__(self):
super(Window, self).__init__(vsync = False)
# Run "self.update" 128 frames a second and set FPS limit to 128.
pyglet.clock.schedule_interval(self.update, 1.0/128.0)
pyglet.clock.set_fps_limit(128)
# You need the dt argument there to prevent errors,
# it does nothing as far as I know.
def update(self, dt):
pass
def on_draw(self):
pyglet.clock.tick() # Make sure you tick the clock!
self.clear()
fps.draw()
# Create a window and run
win = Window()
pyglet.app.run()
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