====== ChangeFlag ======
 
  * ''void ChangeFlag(str flag, bool value)''
  * ''void ChangeActorFlag(int tid, str flag, bool value)''

ACSUtils provides an implementation of [[zdoom>A_ChangeFlag]] for ACS. Before using it, you need to add ''decorate/changeflag.txt'' from ACSUtils to your mod.

It works by defining two inventory items for every flag. When given, one of them calls ''A_ChangeFlag("FLAGNAME", true)'', and the other ''A_ChangeFlag("FLAGNAME", false)''.

ZDoom later added its own ACS function to do the same, [[zdoom>SetActorFlag]], but it's not available in Zandronum 3.0.