I've purchased several of the actual plastic puzzle sets for friends and myself. Problems with this app are:
1. The order of placing the pieces is fixed and can't be chosen by the user. The user should be able to place pieces in any order (and remove any piece already placed).
2. The 2 buttons for piece translation movement (left, right) are erratic and instead of just moving the piece in the direction of the arrow, sometimes cause the piece being placed to unexpectedly ROTATE.
3. The 3 buttons to rotate the piece in the x, y, or z axis sometimes causes a rotation in an unexpected axis, which really messes up piece placement.
4. This is minor, but when finally successfully placing the last piece, the spinning "success" cube is shown without the user being given a chance to see and rotate the cube. A short delay would suffice, or perhaps require the user to press the down ("grab next piece") arrow.
5. The "snap back to position" when the user releases their finger could be delayed to allow the user to view the cube from that viewpoint for slightly longer.
6. Finally, it would be nice to allow the user to select a puzzle code from the printed code book.
Other than these problems, this app is a great start !
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angel cat lover
MMarkP
A customer I suppose
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