def shiftLeft(self):
if grid.canShiftLeft(self.grid):
return Game(grid.shiftLeft(self.grid, self.rng.random(), self._nextTile()), self.stack, self.rng)
else:
return Game(grid.copy(self.grid), self.stack, self.rng)
def canShiftLeft(self):
return grid.canShiftLeft(self.grid)