Contest tools and workflow

eulerscheZahl

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IDE settings

Now that we successfully downloaded a replay, let's finally extract the errorstream of an entire game. This allows to reproduce every step, as long as our own bot is deterministic. My arena bot prints every input given by the referee directly to stderr so that I can read it again later.

Python

import json, os
# read the replay from file
with open('replay.json', 'r') as f:
    replay = json.loads(f.read())
stderr = []
for frame in replay['success']['frames']:
    if not 'stderr' in frame.keys(): continue
    for err in frame['stderr'].split('\n'):
        # some of my stderr lines aren't referee input. I marked them with '#' to filter them
        if not err.startswith('#'): stderr.append(err)
#write the errorstream to the file 'input.txt'
with open('input.txt', 'w+') as f:
    f.write('\n'.join(stderr))
print('\n'.join(stderr))

Now we saved all the referee input to a single file. Now we can copy it in our terminal as input. Or we configure the IDE to read from file. IDE_from_file

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IDE settings

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