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Start your free trialAudrey Watson
3,790 PointsIf I wanted to add an exit option, would I create a new method or add an elif in the check_location or start_game method
If I wanted to add an option for the user to exit the memory game, would I create a new method called exit_game or could I put it in the start_game or check_location method?
1 Answer
Chris Freeman
Treehouse Moderator 68,454 PointsHey Audrey Watson, there are multiple ways to implement an exit option.
The key point is to exit gracefully. This might be done by setting game_running
to False
. Since game_running
is local to the start_game
method, putting in the option to exit in that method seems most logical. The “enter to continue” input could be checked for alternative (non-enter) values and set game_running
to False
.
An exit_game
method would not be strictly needed. However, if you wished to place addition clean up code in such a method, then the exit could be called from multiple locations. If this method forced the program to end, it would not matter if game_running
was changed since the program execution would not be returning to the while loop.
Using sys.exit() is a standard way to exit.
import sys
sys.exit()
If an exit_game
is created to “clean up” and exit, one idiom I like to add is catching keyboard interrupts
(Cntr-c in Linux). This would allow calling the exit method if the user hits Cntr-c anytime during execution.
If __name__ == "__main__”:
game = Game()
try:
game.start_game()
except KeyboardInterrupt:
# call clean up
game.exit_game()
Exiting from the check_location
could work as well. If an invalid or empty guess is received then the user could be asked if they wish to quit, which could then call the exit_game
method.
Alternatively, the check_location
return value could be set to None
to indicate an exit is requested. Then not guess1 or not guess2
could be used to call exit_game
.
Any or all of the above would work. There isn’t a perfect correct answer. Perhaps play around with various combinations to see which you like best.
Please post back what on what you decide! I’m curious what you go with. Good Luck!!