qzdoom-gpl/wadsrc/static/actors/strife/stalker.txt

// Stalker ------------------------------------------------------------------

ACTOR Stalker
{
	Health 80
	Painchance 40
	Speed 16
	Radius 31
	Height 25
	Monster
	+NOGRAVITY
	+DROPOFF
	+NOBLOOD
	+SPAWNCEILING
	+INCOMBAT
	+NOVERTICALMELEERANGE
	MaxDropOffHeight 32
	MinMissileChance 150
	SeeSound "stalker/sight"
	AttackSound "stalker/attack"
	PainSound "stalker/pain"
	DeathSound "stalker/death"
	ActiveSound "stalker/active"
	HitObituary "$OB_STALKER"

	action native A_StalkerLookInit ();
	action native A_StalkerChaseDecide ();
	action native A_StalkerWalk ();
	action native A_StalkerDrop ();
	action native A_StalkerAttack ();

	states
	{
	Spawn:
		STLK A 1 A_StalkerLookInit
		Loop
	LookCeiling:
		STLK A 10 A_Look
		Loop
	LookFloor:
		STLK J 10 A_Look
		Loop
	See:
		STLK A 1 Slow A_StalkerChaseDecide
		STLK ABB 3 Slow A_Chase
		STLK C 3 Slow A_StalkerWalk
		STLK C 3 Slow A_Chase
		Loop
	Melee:
		STLK J 3 Slow A_FaceTarget
		STLK K 3 Slow A_StalkerAttack
	SeeFloor:
		STLK J 3 A_StalkerWalk
		STLK KK 3 A_Chase
		STLK L 3 A_StalkerWalk
		STLK L 3 A_Chase
		Loop
	Pain:
		STLK L 1 A_Pain
		Goto See
	Drop:
		STLK C 2 A_StalkerDrop
		STLK IHGFED 3
		Goto SeeFloor
	Death:
		STLK O 4
		STLK P 4 A_Scream
		STLK QRST 4
		STLK U 4 A_NoBlocking
		STLK VW 4
		STLK "XYZ[" 4 Bright
		Stop
	}
}