I'm programming a game in Python, where all IO activities are done by an IO object (in the hope that it will be easy to swap that object out for another which implements a different user interface). Nearly all the other objects in the game need to access the IO system at some point (e.g. printing a message, updating the position of the player, showing a special effect caused by an in-game action), so my question is this:
Does it make sense for a reference to the IO object to be available globally?
The alternative is passing a reference to the IO object into the __init__() of every object that needs to use it. I understand that this is good from a testing point of view, but is this worth the resulting "function signature pollution"?
Thanks.
Yes, I think so.
Another possibility would be to create a module loggerModule that has functions like print() and write(), but this would only marginally be better.
Python game programming: is my IO object a legitimate candidate for being a global variable?