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import rabbyt
import pygame
import os.path
rabbyt.data_directory = os.path.dirname(__file__)
pygame.init()
pygame.display.set_mode((640, 480), pygame.OPENGL | pygame.DOUBLEBUF)
rabbyt.set_viewport((640, 480))
rabbyt.set_default_attribs()
car = rabbyt.Sprite("car.png")
# You don't have to be limited to static values! Using rabbyt.lerp you can
# assign a value that linearly interpolates over time. The interpolation is
# done in Pyrex code, so it is practically free.
# Fade the car in after one second.
car.alpha = rabbyt.lerp(0.0, 1.0, startt=1, endt=2)
# Rotate the car from 0 to 360 over three seconds, then repeat.
car.rot = rabbyt.lerp(0, 360, dt=3, extend="repeat")
while not pygame.event.get(pygame.QUIT):
rabbyt.clear((1,1,1))
# When using anims (such as returned by lerp,) we need to tell
# rabbyt what time it is every frame. This might sound silly, but there
# are two good reasons for it. 1) Rabbyt isn't limited to one
# high-resolution clock implementaion and 2) you can have complete control
# over time. This could be very useful if you want to add a 'pause' feature
# to you game :)
rabbyt.set_time(pygame.time.get_ticks()/1000.0)
car.render()
pygame.display.flip()
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