Region Trigger is an entity added all the way back in Mari0: SE that has become a powerful map making tool. This item will provide an output when it's region is touched.
Region Trigger is invisible when playing the game, only in the editor can it bee seen, it is yellow box with a slightly transparant middle.
Appearances[]
1.6 - Didn't appear
SE - First Appearance
CE - Appeared
AE - Appeared
Right Click Menu[]
This is split up into separate versions. make sure to use your versions.
Region Trigger right click menu in SE.
Special Edition (SE)[]
PLAYERS ONLY - If the region trigger is only triggered by players.
Region Trigger right click menu in CE.
Region Trigger right click menu in AE.
SELECT REGION - Used to select the region that will trigger the trigger.
Community Edition (CE)[]
PLAYERS - If the region trigger is triggered by players.
ENEMY CAT - The enemies that will trigger the region trigger.
SELECT REGION - Used to select the region that will trigger the trigger.
Alesan's Entities (AE)[]
TRIGGER ON - What causes the trigger to trigger...
Player - If it is only triggered by players.
Enemy - If it is only triggered by enemies
Cube - If it is only triggered by storage or companion cubes
Everything - if it is triggered by players, enemies and cubes.
SELECT REGION - Used to select the region that will trigger the trigger. In AE this can also be half of a tile.
Linking[]
This item is only an Input meaning other items can be linked to it but the block cannot linked to other items.
Uses In Game[]
They can be placed on any tile as they wont be seen on game.
They can be used in a multitude of ways, you can use it as a hidden input to trigger something, their also useful for making things like hidden doors.
Because in most cases it can be set to ignore players and not ignore enemies you can set it up to react when an enemy is spawned or killed, for example making a room where you need to kill all the enemies.
Map makers find this tool incredibly useful in complex contraptions as it is very versatile even in older versions.
Old right click menu from AE, this allowed you to do now illegal stuff like make 1.25 regions.
In AE the design on the trigger has been changed many times, at first when you right clicked it it would immediately be the select region as no additional menu was added, their is also an old version where it used two inputs instead. This would have allowed you to make now illegal regions.
