Checking in first pass at revamping the 'mcontrol' functionality. The idea is
that the mouse will be able to emulate different controllers on each of its
axes. For now, the left mouse button is tied to the X-axis, and the right to
the Y-axis. These modes will be saved per-ROM, meaning that the mapping can
be different for each ROM (it is saved as part of the ROM properties). Only
the paddles and driving controllers will allow this, since they're the only
controllers where a single axis makes sense.
Switching between mouse modes will be done with Control-0 (the Control-1..3
keys have been removed). This will allow switching all possible combinations
(left controller, right controller, per-ROM setting, etc).
git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2366 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
stephena