- Make a conveyor: static body. In event callback of Conveyor.OnCollision set a tangent speed.
- Make few packets on just above it each fixed or variable time duration. dynamic bodies.
- A variable can be modified anywhere in the code. The variable further is put into tangent speed at each collision.
Now different packets over same conveyor run at different speed. I can understand that tangent speed is the one factor which contact based bodies are given speed.
How to get same speed for all the packets in the same conveyor given variable speed of the conveyor?