Grappling Hook Physics Constrains ?

Thank, you for help:)
I’ll post thinks To DO in this threat so everything will be more organized:
-Shot grappling hook (it’s obvious:))
-when pressed key pull to shot location and only there !!! Character shouldn’t go any further

  • when pull key is relised character should move current with physics constrains
    -optionaly push character should longer the grappling hook line also with physics constrains.

Help will be needed in any of this issues. Thanks