TwistyObject's ObejctScreenRatio and InitScreenRatio shouldn't be static. Make them non-static.Otherwise, if the current object is, say, a cube (initSR=0.5), we fire up tutorials and start a tutorial for something with vastly different ObjectScreenRatio (Jing- initSR=1.64), then come back to the Main Activity - so there's a cube on the screen again - the ratios stay at their Jing values, which screws up detection of rotations.
Minor.
Square-1: progress with movement.
Progress with the Kilominx movement (still not working)
Progress with the Diamond. Everything working except for the isSolved(): turns out the center cubits can end up rotated along the face by multitudes of 120 degrees.
Progress with the Diamond. Everything working, expect one thing: half of the faces are upside down, and computing offset doesn't work on those faces properly.
Rename some classes.
Rename 'RubikMovement' to 'Movement'