Hi!!
I'm working on a game in which the user needs to move an object around
a 3D "room", allowing 6 degrees of freedom. The object has a DOF
(direction of flight) and Up vector to define its direction of
movement. I need to allow the user a set of operations such as
rotation along the 3 axis (X, Y, and Z) and translations towards (and
backwards) the DOF vector. The problem is that somehow I need to keep
track of the object's status so that next time I perform, for example,
a rotation it should take into account the local co-ordinate system
(the modified DOF and Up vectors) rather than the canonical axes (X,
Y, and Z - which are the room's co-ordinate system).
Any suggestions?
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