Returns current position of head, wand, or an eye.
id indicates which position to return - can be
CAVE_HEAD, CAVE_WAND, CAVE_LEFT_EYE, or CAVE_RIGHT_EYE.
CAVEGetOrientation (CAVEID id, float ori[3])
Returns current orientation of head or wand, in Euler angles.
id indicates which position to return - CAVE_HEAD or CAVE_WAND.
ori returns the rotation about X, Y, and Z,
in degrees.
CAVEGetVector (CAVEID id, float vec[3])
Returns unit-length vector for head or wand, pointing in a given
direction, based on current orientation.
id indicates which vector to return; can be CAVE_HEAD_FRONT,
CAVE_HEAD_BACK, CAVE_HEAD_LEFT, CAVE_HEAD_RIGHT, CAVE_HEAD_UP,
CAVE_HEAD_DOWN, CAVE_WAND_FRONT, ... .
CAVEBUTTON1, CAVEBUTTON2, CAVEBUTTON3
Macros for current state of wand buttons. Value is
0 while button is released, non-zero while pressed.
int CAVEButtonChange (int buttonNum)
Returns change in state of a button, since the last time
it was checked. buttonNum is 1, 2, or 3.
Return value is 1 for button-pressed, -1 for button-released,
0 for no change.
CAVE_JOYSTICK_X, CAVE_JOYSTICK_Y
Macros for current state of wand joystick. Values
are floats, between -1.0 and 1.0. When the joystick
is not being pushed, the X and Y will be close to, but not
exactly, 0.
