Say I want a player to backtrack through a bsp, and on his way back he faces new encounters that wake from trigger volumes. How do I get the trigger volumes to only activate when the player is backtracking?

Use Globals!

(global boolean BACKTRACK false)

(script startup BACKTRACK_TOGGLER
(sleep_until (volume_test_objects FINAL_TRIGGER_VOLUME (players))
(set BACKTRACK true)
)


(script continuous triggertester

(if BACKTRACK 
(begin
(if (volume_test_objects TRIGGER_VOLUME_1 (players))
(begin
(PLACE SCRIPTS HERE)
))
))

)

Replace the trigger volume names with your own volumes. What this does is create a global with the value of a boolean, and sets it to false. Then when the player goes through the last trigger volume, it sets backtrack to true. Now any trigger volumes that are passed through while BACKTRACK is true will go through the commands you put under (PLACE SCRIPTS HERE). If BACKTRACK is not true (the player didn't reach the final volume), no commands will play.

That is a pretty complicated way to deal with that. Your continuous script will endlessly spawn AI when the player is in the trigger, instead of just once.

Just use dormant scripts.

(script dormant player_can_backtrack_now
(sleep_until (volume_test_objects Backtrack_Trigger (players)) ;waits for the player to hit the backtracked trigger to place ai
(ai_place 01_Cov_1_Backtrack)
)

(script startup script_copyrighted_mattdratt_2017
(sleep_until (volume_test_objects Enable_Backtrack (players)) ;waits until the player hits the Enable_Backtrack trigger, which should be ahead of Backtrack_Trigger
(wake player_can_backtrack_now)
)

Edited by MatthewDratt on Jun 3, 2017 at 11:11 PM