ThreeScen2

Resolves turn. Takes a list RArr of commands consisting in this simple case of (Player, HStep) pairs. The command is passed in as a relative move. This is in accordance with the principle in more complex games that the entity issuing the command may not know its real location.

tile terrain.

This gives the structure of the hex grid system. It contains no data about the elements of the grid. But it allows the scenario to create and operate on flat arrays of data.