俄羅斯方塊
Notations
x : for translation
o : for rotation
smaller circle within the piece : for flipping
Discussions on Constructions
1. Two pieces (the green and the orange pieces) can be flipped. Which one do you prefer?
2. The sliding action of the flipped piece is not as 'free' as the original piece. Why?
3. Is/Are there any other way(s) in designing the flipping action?