Advanced elevators

Once you've created an elevator (see Two-stop elevators or Multi-stop elevators), there are several extra features that you could add to make it more realistic.

• Doors that re-open when blocked

Simply tying an Open output to an OnBlocked input will not work, because the OnBlocked doesn't detect both phyics objects and the player.

Todo: describe the solution (parented trigger_multiples)

• Counterweight

Use a func_physbox for the counterweight, constrained to the wall with a vertical phys_slideconstraint and attached to the elevator with a phys_pulleyconstraint. Remember to add the cables. Since there's more than one constraint, also use a phys_constraintsystem.

• Multi-part sliding doors (one part slides into the other, while the other slides into the wall)

Todo: describe method