01-19-2016, 10:28 PM
If you look at the NES Mario sprites (which is what I assume you mean by classic), you'll see that his walking frames have 3 frames to them which cover the basic front to back motion I described earlier (I highlighted the motion in magenta):
![[Image: 1LJGLcd.png]](http://i.imgur.com/1LJGLcd.png)
They take advantage of the ambiguity between the front and back leg to save frames due to having no shading; you'd need at least twice as many frames if you made the front and back legs distinct.
![[Image: 1LJGLcd.png]](http://i.imgur.com/1LJGLcd.png)
They take advantage of the ambiguity between the front and back leg to save frames due to having no shading; you'd need at least twice as many frames if you made the front and back legs distinct.