How did Fortnite create the Cable movment in ODM?

As seen in the GIF below, how did Fortnite’s ODM gear cables spawn in a desired wavey shape? Is it a particle effect that gets switched out by a cable as it become taught?

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it is probably beam emmiter. Does this cable bend (i mean by it that in gif it looks like all waves are following line, can they follow some other shape/curve?).

Think about this problem as two separate parts:

  • one is visuals that try to fool you
  • second is actual line/curve that is invisible but does actual gameplay mechanics

And btw most effects in games are simple, with something on top designed to fool you.