"What a trigger does when its conditions are tested \"true\". Actions include the direct execution of a number of functions and the sending of messages. Messages are sent via the game's message delivery system to other objects in the game that are waiting for them, such as other triggers, gizmos, and actors."@en . . . "What a trigger does when its conditions are tested \"true\". Actions include the direct execution of a number of functions and the sending of messages. Messages are sent via the game's message delivery system to other objects in the game that are waiting for them, such as other triggers, gizmos, and actors."@en . "Guide: Siege University - 200: Concepts and Terminology"@en .