Sector_ChangeFlags
From ZDoom Wiki
54:Sector_ChangeFlags (tag, setflags, clearflags)
(development version only)
Sets or clears certain sector-specific flags.
tag: The tag of the sector(s) to affect. setflags: The flags to turn on for the specified sector(s). clearflags: The flags to turn off for the specified sector(s).
Currently supported flags are:
- SECF_SILENT: Noise from this sector is suppressed. No noise will be generated by actors within the sector, or by sector actions such as the ceiling or floor moving.
- SECF_NOFALLINGDAMAGE: Players won't take falling damage when landing on this sector's floor, no matter how fall they far and what settings for falling damage are currently set.

