Linedef type 441

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Linedef type 441, Condition Set Trigger, is a type of linedef executor which, when triggered, fulfills an unlockable condition. This can be used to dynamically award custom unlockables or emblems for doing something in a map. Condition set triggers carry over from map to map, and linedef type 317 and linedef type 318 can be used to check for them dynamically. This makes it possible to create overarching effects that affect more than one map.

Note that this linedef executor has no effect in netgames, or if gamedata is no longer being saved due to the use of a protected console command (such as god or devmode). Due to this, the condition set trigger-related linedef executor triggers will also fail to work in these instances, so their activation should not be required to complete the map.


The tag given to this linedef is irrelevant. The front texture X offset determines the number of the trigger to activate, ranging from 0 to 31. When the linedef is executed, it will activate this trigger and immediately check if any unlockables or emblems have been earned. See Custom unlockables and emblems > Condition sets for information on how to associate the trigger with an unlockable or emblem.


Example WAD: ex_ld441_conditionsettrigger.wad
  • This example WAD can be played in any gametype. It uses MAP01, replacing Greenflower Zone Act 1.
  • Stepping on the red button will activate condition set 1. Afterwards, stepping on the blue button will cause the player's score to increase continuously.

  Linedef typesLinedef executors [view]

ContinuousEach TimeOnce • Ring Count (ContinuousOnce) • Character Ability (ContinuousEach TimeOnce) • Race Only – Once • CTF Red Team (ContinuousEach Time) • CTF Blue Team (ContinuousEach Time) • No More Enemies – Once • Number of Pushables (ContinuousOnce) • Condition Set Trigger (ContinuousOnce) • Unlockable (ContinuousOnce) • Trigger After X Calls (ContinuousEach Time) • Level Load

Set Tagged Sector's Floor Height/TextureSet Tagged Sector's Ceiling Height/TextureSet Tagged Sector's Light LevelChange Tagged Sectors' TagChange Front Sector's TagStart Adjustable Flickering LightStart Adjustable Pulsating LightStart Adjustable Blinking Light (unsynchronized)Start Adjustable Blinking Light (synchronized)Fade Light LevelStop Lighting EffectChange Plane Scroller Direction
Plane movement:
Move Tagged Sector's FloorMove Tagged Sector's CeilingMove Floor According to Front Texture OffsetsMove Ceiling According to Front Texture OffsetsStop Plane MovementStart Platform MovementCrush Ceiling OnceCrush Floor OnceCrush Ceiling and Floor Once
TeleporterChange Object StateStop ObjectAward ScoreEnable/Disable 2D ModeEnable/Disable Gravity FlipAward Power-UpDisable Player ControlChange Object SizeChange Object Type State
Change MusicPlay Sound EffectRun ScriptSwitch to Cut-Away ViewChange SkyChange WeatherShatter FOFChange Tagged Linedef's TexturesStart Metal Sonic RaceCondition Set TriggerCall Lua FunctionEarthquakeMake FOF Disappear/ReappearExecute Linedef Executor (from Tag)Execute Linedef Executor (Random Range)
Door SlideDoor SwingMoveMove, OverrideRotate RightRotate Right, OverrideRotate LeftRotate Left, OverrideMove by WaypointsTurn Invisible, IntangibleTurn Visible, TangibleSet Translucency