ZDoom codepointer extensions
In addition to the 
BEX codepointers available from BOOM, the following codepointers are also available in ZDoom:
Contents
From MBF
Detonate
The actor that uses this code pointer will create an explosion with size and damage determined by its Missile Damage field.
Mushroom
Creates a "mushroom cloud" of mancubus shots just above the actor.
Die
The actor that uses this dies.
From Hexen
SetReflective
The actor becomes reflective, and any projectiles that strike it will bounce off of it, though it will still take damage.
UnSetReflective
The actor is no longer reflective.
SetInvulnerable
The actor becomes impervious to damage.
UnSetInvulnerable
The actor is able to take damage again.
SetShootable
The actor can be hit by projectiles/hitscan weapons.
UnSetShootable
The actor cannot be hit by projectiles/hitscan weapons.
New to ZDoom
FireRailgun
Fires a railgun from the center of the player's screen. Only for player weapons.
FireRailgunRight
Fires a railgun from the right side of the player's screen. Only for player weapons.
FireRailgunLeft
Fires a railgun from the left side of the player's screen. Only for player weapons.
MonsterRail
Makes a monster fire a railgun. The amount of damage dealt by the railgun is determined by the monster's Missile Damage field.
RailWait
Exactly the same as NULL. In fact, you are encouraged to use NULL instead of this, because it is considered deprecated.
SetReflectiveInvulnerable
Makes the actor reflect projectiles and impervious to other types of damage.
UnSetReflectiveInvulnerable
Undoes the effect of SetReflectiveInvulnerable.
Gravity
Allows the actor to fall under the effects of gravity.
NoGravity
Causes the actor to float in the air instead of fall.
