Map Grid Lines:
Line going up is x-axis, line going down is y-axis. Left square is origin.
Example: Position 1 starts at (0,1), moves to (1,1). Tethys is at (1,0).
Line going up is x-axis, line going down is y-axis. Left square is origin.
Example: Position 1 starts at (0,1), moves to (1,1). Tethys is at (1,0).