jmoenig
commented
7 years ago Yes, that's because the rotation center is at the bottom of the costumes in your project, and that's a feature. When you import the costumes the rotation center is automatically placed in the middle of a costume, that should work fine for your project.
You can also reset the rotation center's y-coordinate programmatically:
Repro bug: http://snap.berkeley.edu/snapsource/snap.html#present:Username=juanitaintro&ProjectName=Mario%20-%20Bug
Just view the code and click on the two "point in direction" blocks.... The Mario sprite jumps up and down on the y axis even though the y position (and costume) don't change.
This happens (apparently) b/c the rotation center is at the bottom of the sprite and snap apparently is doing something odd/wrong when it does the flip from left to right action. BYOB does not have this behavior FWIW.