Lift Logic

[pooshoes]

I'm making a puzzle map for L4D2 with one of the puzzles involving 3 people riding a lift.

My problem is making the lift work when exactly 3 people are on it.

At the moment I have a trigger_multiple adding and subtracting 1 to and from a math_counter whenever a player enters or leaves the trigger volume.

The counters max is set to 3, so when the HitMax output fires, a button unlocks allowing the lift to be operated. However, the problem with this is that 3 people can enter the trigger, exit, then operate the lift with no one on it.


How can I go about preventing the lift from working whenever anything other than 3 people are stood on it?


Thanks in advance.

[Zeph]

Use a Logic_Compare to enable/disable a Logic_Relay which controls the lift, or lock/unlock the button.

Logic_Compare -> SetCompareValue -> 3
Math_Counter -> OutValue -> Logic_Compare -> SetValueCompare
Logic_Compare -> OnEqualTo -> Enable/Unlock
Logic_Compare -> OnNotEqualTo -> Disable/Lock

Have fun.

PS: Don't trust "HitMax", ive read it seldom works.

[pooshoes]

Thank you very much, Zeph.

Worked like a charm.