qzdoom/wadsrc/static/actors/constants.txt

// Flags for A_CustomMissile
const int CMF_AIMOFFSET = 1;
const int CMF_AIMDIRECTION = 2;
const int CMF_TRACKOWNER = 4;
const int CMF_CHECKTARGETDEAD = 8;

// Flags for A_SpawnItemEx
const int SXF_TRANSFERTRANSLATION=1;
const int SXF_ABSOLUTEPOSITION=2;
const int SXF_ABSOLUTEANGLE=4;
const int SXF_ABSOLUTEMOMENTUM=8;
const int SXF_SETMASTER=16;
const int SXF_NOCHECKPOSITION = 32;
const int SXF_TELEFRAG=64;
const int SXF_TRANSFERAMBUSHFLAG=128;

// Flags for A_Chase
const int CHF_FASTCHASE = 1;
const int CHF_NOPLAYACTIVE = 2;
const int CHF_NIGHTMAREFAST = 4;
const int CHF_RESURRECT = 8;
const int CHF_DONTMOVE = 16;

// Flags for A_LookEx
const int LOF_NOSIGHTCHECK = 1;
const int LOF_NOSOUNDCHECK = 2;
const int LOF_DONTCHASEGOAL = 4;
const int LOF_NOSEESOUND = 8;
const int LOF_FULLVOLSEESOUND = 16;