Use these flags to constrain motion of the Rigidbody2D.
See Also: Rigidbody2D.constraints.
| None | No constraints. | 
| FreezePositionX | Freeze motion along the X-axis. | 
| FreezePositionY | Freeze motion along the Y-axis. | 
| FreezeRotation | Freeze rotation along the Z-axis. | 
| FreezePosition | Freeze motion along the X-axis and Y-axis. | 
| FreezeAll | Freeze rotation and motion along all axes. |