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Libtcod曾经包含一个全局帧率限制器，该限制器最终被弃用。此模块是为了替代该功能而创建的。

import time

import tcod.clock


FPS = 30

end_time = time.time() + 3  # Loop for 3 seconds.

clock = tcod.clock.Clock()
while time.time() < end_time:
    clock.sync(1 / FPS)  # This loop will run at 30 FPS until interrupted.

# Timing information can be checked.  Check the docs for more info.
print(f"{clock.last_fps=}")
print(f"{clock.min_fps=}")
print(f"{clock.max_fps=}")
print(f"{clock.mean_fps=}")
print(f"{clock.median_fps=}")