Board support for multiple mappings.

[ichabod801]

In Board.getitem, it would check for a player's name (that had already been defined. That would map to a different mapping of locations to cells. This is a child of issue #407: update board.py

This is mainly for Backgammon.

[ichabod801]

I'm not sure if I'm going to do this. But if I do, I think the way to do it is to have attributes for each player. In Backgammon, you might have board.black and board.red. They would be two mappings to the same cells. You would start with board.cells = board.black. Then when you called board.switch, it would set board.cells = board.red.

Oh, you could have a set_views method, that could set the views for the board. Then you could just override that, and perhaps the switch method, and you don't have to change anything about board.

Let's do it. It would still be a fair bit of work to modify (simplify) Backgammon, but I have several weeks to get it done.

[ichabod801]

If we have (for example) self.views = itertools.chain([self.red, self.black]), then the switch method could be as simple as:

def switch(self):
    self.cells = next(self.views)

[ichabod801]

Damnit, that's itertools.cycle, not chain. I always get those two mixed up.

[ichabod801]

Giving up on this for the time being.