mobility: Fix velocity when nodes are standing still
Small fix.
If RandomWaypointMobilityModel
the node stops when it reaches the intended destination. However, if the next destination is the point the node is at... kaboom.
It happens in this case:
- The nodes use a
ListPositionAllocator
- The mobility model uses the same
ListPositionAllocator
, or a different one with the same number of points as the number of nodes (didn't test this sub-case tho).
... and other fun variations.