Almost all the game characters move across the universe created by the developers although there is a difference in the way they traverse in the 3D world and in the paths that they (the developers) choose. This complex set of routes in which developers restrain the game characters while they move is called the path system. In other words, the game characters walk through the game landscapes as though they are tightrope walkers being guided by these paths.
In our game we are looking for the most natural way of character movement possible; this is why we opted for curved paths. The video below shows how we draw the lines to instruct the characters of the possible ways to travel.