Trigger

Dragon Age: Origins pressure plates.

Description

A trigger is an element that, once the player activates, triggers an enemy encounter, level change or item appearance. The player can either be aware of the trigger as a button, lever, or pressure plate, or unaware if the trigger is invisible and used for level pacing.

Invisible triggers, as mentioned above, can be quite useful for level pacing, waiting until the player moves to a certain point to send another wave of enemies. Visible triggers can be used to make a player revisit parts of the same level by changing the level or spawning an item once a trigger is activated.

Variables and Affordances

  • Visibility of trigger (Invisible, Hidden, or Visible). Invisible triggers are used when the player is supposed to trigger something in every case, while hidden triggers are more for traps and secret areas/containers. Visible triggers are used for puzzles or personal pacing.
  • Trigger effect (Trap, Unlock, Encounter, Etc).

Examples

  • Dragon Age: Origins. Pressure plates trigger traps, a special encounter, and are used during puzzles.
  • Mass Effect 2. In Dossier: The Professor (end of the sequence, turning on the blowers). Enemies won't spawn until you've moved further through the gauntlet.

In Worked Examples

  • Trap - A trap is a trigger with a negative effect, like damage or an enemy encounter.
  • Puzzle - A puzzle often uses visible triggers to change the puzzle.
patterns/trigger.txt ยท Last modified: 2011/06/12 17:14 by Gillian Smith
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