Create Rolling animations in a fast way!

Overview:
Features:
1.Roll any shape on the ground:

2.Objects can be rolled on any ground:
(like the steps, uneven ground, and even on animation ground......)



3.Objects can be rolled along a path.

4.Objects can jump during rolling animation.

5.Easy for multi-objects rolling animation.

Tutorials
01-Roll down steps:
02-Jump during rolling
03-Roll along path
04-Roll on uneven ground
05-Roll Multi-objects
Limitations:
1.Addon only works on Mesh objects.
2.The addon can only roll objects on the ground(Axis:-Z), not on the wall or top face(Not other Axis).
3.Addon acts on the point level ,not on the object level. So the objects texture coordinate should be "UV"