We are now ready to build a simple Atari emulator using gym. As with other computer games, the keyboard input used to control Atari games is as shown here:
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w
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a
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s
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d
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space
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UP
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LEFT
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DOWN
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RIGHT
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FIRE
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To detect the keyboard inputs, we use the pynput.keyboard package, which allows us to control and monitor the keyboard (http://pythonhosted.org/pynput/). If the pynput package is not installed, run the following:
pip install pynput
pynput.keyboard provides a keyboard listener used to capture keyboard events. Before creating a keyboard listener, the Listener class should be imported:
import gymimport queue, threading, timefrom pynput.keyboard import Key, Listener
Besides the Listener ...
