Assistance in writing a trolleybus system

[Lance_Delmago]

Good afternoon, I need help with the implementation of the trolleybus system, namely the animation of the trolleybus pantographs.
The essence of the script is as follows:
The Trolltracks.dat file will contain coordinates of type x,y,z,w and you need to build a path or vector based on them.
And already hook up current collectors consisting of a base (auto part stanga_X) and a head (ampHead_X) to the wires (where X is the number or side of the current collector) by rotating the base and heads along the X axes (lifting and lowering) and Z (turn around the mounting point), If possible, also help with switching the trolleybus arrow on the same wires.
Here is a video showing how pantographs should behave:

 

Spoiler

 

Translated and voiced by Google translator:)