Improved Grappling Hook Physics Script b1

This script tweaks the grappling hook physics to make them feel more natural, by adding a subtle pull based on where the player is looking, and enabling the cvar tf_grapplinghook_use_acceleration.

Installation instructions:

1. Put the script in tf/scripts/vscripts.
2. Add a logic_script to your map with these values:
   • Entity Scripts: "grapple.nut"
   • Script think function: "GrappleThink"
3. you're done, that's it, go get a snack