'Base'- and 'Nazi'-Class Actor Configuration

There are two ZScript classes in Blade of Agony that define additional enemy behavior. The 'Base' class is used directly as a base for non-human enemies, such as sharks, rats, and the non-human bosses. The 'Nazi' class inherits all of the functionality of the 'Base' class, but adds additional capabilities that are used by human and human-like actors.

Custom UDMF Attributes

'Base' Class and 'Nazi' Class:
  • If set to 1, the actor's health bar is always drawn, regardless of it has the BOSS flag or if it's in view of the player
  • The underlying variable for the Base.AlwaysDrawHealthBar property
  • If set to 1, forces the enemy to always drop their weapon when killed
  • Has the side effect of *not* dropping any other defined DropItems
user_conversation (currently unused in BoA) 
  • Intended to mark actors that can be interacted with via dialogue
  • If set to 1, marks the actor with an interaction excalamation point marker that will follow them as they move, and will grey out once the player 'uses' the actor and enters a conversation with them.
  • Marker is removed when the actor is killed or this value is reset to 0
  'Nazi' Class Only:
  • The underlying variable for the Nazi.Sneakable property. If set to 1, this can be used to set actors as sneakable in-editor, without creating a custom actor class.
  • IF set to 1, actor will remain at its spawn location until the player is within 256 units
  • The actor will still aim and fire at the player, but won't walk toward him until the player is within the 256-unit range
  • Has no mapper use
  • Just a leftover variable name from the original DECORATE code

Flag effects

Certain editor flags have been given additional meaning when applied to a 'Nazi'-class actor.

'Nazi' Class Only:
  • Actors with the AMBUSH flag set will default to their 'aiming' frame - there's no behavioral change, just the actor's appearance
  • Actors with the BOSS flag set will show a health bar at the top of the screen when the player is aiming at them
Properties for new actor definitions 'Base' Class and 'Nazi' Class:
  • String property that is used to look up the icon image that is displayed with the enemy's health bar
  • Must be used in combination with the +BOSS flag (which enables the boss health bar to be drawn) or the Base.AlwaysDrawHealthBar property below.
  • Has no effect if the enemy is not flagged to have health bar drawn.
  • Boolean value that is used to tell the game if the enemy's health bar should always be drawn.
  • Does not require the +BOSS flag to be set, and can alternatively be controlled via ACS or in-editor by setting the user_DrawHealthBar variable
  • Boolean value that sets whether the actor should be restricted to staying underwater or not. Used by sharks.
  • Integer value that sets the range from the spawn point that this actor will wander while it is idle (normally only on spawn).
  • Default is zero. Currently used by dogs and sharks.
'Nazi' Class Only:
  • Boolean that controls if the enemy is a sneakable enemy or not.
  • Can also be set in-editor on a per-actor basis by setting the user_sneakable variable.
  • Can be set in-game (e.g., after a cutscene using normal actors) by setting the actor's state to "MakeSneakable" via ACS.
  • Integer value that controls how close to the actor the player must be before visibility amount begins to increase dramatically (essentially, when the meter begins to ramp up as you get within touching distance)
  • Default value is 64
  • Integer value that controls how many tics a disguised player must remain in sight of this enemy before the player's disguise fails.
  • Default value is 0, meaning "can't see through disguises"
  • Used by SneakableEyesIdle actor (as seen on sneakable Gestapo)
  • Integer value that controls the FOV of the enemy when trying to see through player disguises.
  • Used by SneakableEyesIdle actor (as seen on sneakable Gestapo)

Actor States

'Nazi' Class Only:
Sneakable State Changes

These are intended to be used as workarounds to set up certain actor effects from ACS. e.g., 'SetActorState(0, "MakeSneakable");' will turn the current actor into a sneakable actor. This is used in the beginnning of C2M1 after the (non-sneakable) 'firing squad' that you see through the vent is done executing their prisoners to make them sneakable

  • Actor will be made into a sneakable actor
  • Actor will be alerted as if it were sneakable and had seen a player
  • Note that this will turn non-sneakables into sneakable actors! They will go idle, etc. just like any other sneakable after this is used.
Walking Speed Modification

These are only really useful if you are defining a new class - instead of copy and pasting all of the 'See' state, you can simply use "Goto See.Faster", etc.

State Walking Frame Duration Footstep sounds? Frames
See.Normal 8 tics Normal footsteps ABCD
See.Fast 6 tics Normal footsteps ABCD
See.Faster 4 tics Normal footsteps ABCD
See.MutantFaster 4 tics Normal footsteps ABCD (Sounds play on opposite frames from See.Faster)
See.MutantFasterAlt 4 tics Normal footsteps BCDE
See.Boss 8 tics Heavy footsteps ABCD
See.BossFast 6 tics Heavy footsteps ABCD
See.BossMech 8 tics Mech footsteps ABCD
See.Static 1 tic - intended for non-moving actors N/A A
Other miscellaneous states
Alarm Activation

A 'Nazi'-class actor that activates an alarm has special handling. When they activate an alarm, they are set to the 'Alarm' state.

Actor Spawners

These actors spawn enemies when activated, and maintain a set number of those enemies alive (1 by default). Actors will not be spawned if a player can see the spawn point or if a player is within a defined minimum spawn distance from the spawner (default 512 units).

By default, the spawner will spawn a single guard. Once that guard is killed, the spawner will spawn another guard, and so on. This can replace situations where an ACS script might mindlessly spam a huge flood enemies, regardless of how many are being killed or not, by metering how many enemies are active at once.

Spawned actors can be given a TID and can be set to navigate to a specific PatrolPoint TID after spawn as well.

11519 - ActorSpawner

Custom UDMF Attributes
Attribute Usage
arg0str Sets the class of actor to be spawned (default "Guard"). Note that you must select the 'String' value to enter a string in the arg0 field in GZDB, otherwise, you will be forced to enter an integer which will be interpreted internally as a spawn ID - so you'll end up with imps, or cyberdemons, or whatever, spawning...
user_tid Sets the TID that the spawned enemies are given. By default they have no TID.
user_goal Sets the goal/patrolpoint TID that the spawned enemies will walk to once they return to being idle. By default, they go back to their spawn point and stand still.
user_maxactors Sets how many enemies from this spawner to maintain alive at once (default 1)
user_minspawndistance Distance from player inside of which the spawner will stop spawning (default 512)


Alarm Configuration

There are three main actors that should be configured together to make realistic alarm scenarios.

Alarms and Alarm Spawners must be given the same TID as an Alarm Panel that will control them, otherwise they will not function unless activated via ACS. You can have multiple Alarm Panels with the same TID (e.g., so that the player can turn of alarms from a side office after the alarms are turned on by a guard in a main area).

11516 - Alarm

These are simple actors that, upon activation, alert all actors within a 512-unit radius. If activated from an alarm panel, they set the alerted actors' target to the alarm panel activator's target.

11517 - AlarmSpawner

These are specialized ActorSpawners that spawn up to three SneakableSSMP40Guard actors when they are activated. A maximum of three guards will be present at any time; if three guards were spawned and one guard was killed before the alarm was shut off, the next time the alarm goes off, only one additional guard will spawn. A major difference from the ActorSpawner is that this spawner will only spawn the specified number of actors per activation; it will not maintain a continuous stream of new actors.

Spawning only occurs when no player can see the spawn point.

Custom UDMF Attributes
Attribute Usage
user_tid Sets the TID that the spawned enemies are given. By default they have no TID.
user_goal Sets the goal/patrolpoint TID that the spawned enemies will walk to once they return to being idle. By default, they go back to their spawn point and stand still.

11518 - AlarmPanel

These are usable flatsprite actors that control Alarms and Alarm Spawners that have the same TID as the panel. The 'Nazi'-class descendant actor who is closest to the alarm panel (within 1024 units) will be automatically selected as the activator, and, once alerted, will automatically walk to the alarm panel and activate it.

Any actors with the same TID as the Alarm Panel will be toggled to their 'Active' or 'Inactive' state, as appropriate, so any Alarm of Alarm Spawner actors (as well as any other switchable decorations) that have the same TID as the panel can be controlled by the panel.

To silence alarms, the player must manually deactivate the alarm, or the Alarm Panel can be deactivated via ACS to set inactive all controlled actors.

Players can also turn deactivated alarms on... This would normally be dumb, but might be useful for flushing guards into a courtyard away from a key, or something similar.

Active AlarmPanel actors have a red glow on them.

Player Followers

An actor that will stand dormant until it sees a player, then will follow that player. The actor can be set to carry a specific weapon.

If a playerfollower has no weapon, and falls significantly far behind the player, when he re-appears, he will have gained a pistol.

Editor number Type
12710 PrisonerAgent - Agent Ryan as a prisoner (No weapon)
12740 AgentArmed - Agent Ryan after returning to duty (Luger)
12741 AgentArmedMP40 - Agent Ryan after returning to duty (MP40 - but with no new sprites)
12742 DouglasArmed - Douglas (Pistol)
12743 SoldierArmed - Generic Soldier (Pistol)
12744 SoldierArmedRifle - Generic Soldier (Rifle)
12745 AscherArmed - Lt Ascher (Rifle)
No editor number Dog Follower - A German Shepherd (Melee, with handling to patrol the general area instead of standing still)

Custom Properties

Weapon that the PlayerFollower will spawn with, set based on FollowerWeapons enum:
  • If true, actor will immediately forget its target if the player moves out of range.
  • This has the effect of making the actor follow the player more closely
  • Behavior and following is more predictable, but more realistic for an escaping prisoner (vice a soldier in combat)
  • Chance that the actor will stop while chasing to attack enemies
  • because of how often this check is performed, values will need to be *very* low (e.g., 2-4) to see any change in actor behavior.
  • FOV used for look/search/sight calls
  • Chance of using grenades. By default, the actor has an infinite supply of grenades
  • Alternatively, if you give the actor a specific number of grenades via a script, then the PlayerFollower will throw up to that many grenades, then no more
Useful Variables

These are intended to be set via ACS using 'SetUserVariable(tid, "variable", value);'

  • Normally, if a PlayerFollower falls 100 pathmarkers behind the player, the actor will be warped ahead to the 50th pathmarker (if the player can't see the marker)
  • Setting this boolean to 1 disables that behavior. This is useful if you want to force a PlayerFollower along a certain route in the map, and don't want him skipping ahead
  • Be cautious! If the PlayerFollower gets stuck somewhere in the level geometry while this is set, then the PlayerFollower will never be able to become un-stuck
  • Setting this boolean to 1 causes the PlayerFollower to stand in place and not follow the player anymore
  • This differs from being dormant/Deactivated in that the PlayerFollower will still look for players, look for enemies, and open fire on enemies
Editing Tricks
Block the PlayerFollower
Normally the PlayerFollowers are not blocked by Monster-Blocking lines. If you want to limit where a PlayerFollower can go, just remove the NOBLOCKMONST flag in ACS:
SetActorFlag(tid, "NOBLOCKMONST", 0);
Then place monster blocking lines in the map, and the PlayerFollower won't be able to cross them.
Change PlayerFollower Weapon
  • You can change the weapon that a PlayerFollower is carrying by giving them a new weapon via ACS. Note that the weapon must be one of those that is coded into the actors...
  • Valid weapons are: Luger9mm, MP40, Sten, KnifeSilent (and GrenadePickup, as discussed in the PlayerFollower.GrenadeChance property section above)