Table of Contents

Hiders

Hiders are objects that should be hidden whenever they fall outside of every revealer's line of sight — enemy units, loot, interactables, and so on.

Hider revealed
Hider in line of sight — revealed
Hider hidden
Hider out of line of sight — hidden

Adding a Hider

  1. Add the Fog Of War Hider component to a GameObject.
  2. Add one of the Hider Behavior components (for example Hider Disable Objects) to control what actually happens when the object is hidden or revealed.

The hider registers itself with the Fog Of War World automatically.

Sample Points

A hider is tested for visibility at its Sample Points. You can add as many sample points as you like — the hider counts as visible if any one of them is seen. If no sample points are assigned, the object's own transform is used.

Tip

If you use many hiders, keep the number of sample points low. Each sample point is an extra visibility test.

Hider Behaviors

The Fog Of War Hider component only detects visibility — a Hider Behavior decides what to do about it. Built-in behaviors:

  • Hider Disable Objects — enables/disables a set of GameObjects
  • Hider Disable Renderers — enables/disables a set of Renderers
  • Hider Toggle Objects — swaps one set of objects for another between the revealed and hidden states

See Hider Behaviors for the full reference, and Custom Hider Behaviors to write your own.

Detecting Visibility in Code

You can subscribe to a revealer's OnHiderVisibilityChanged event to react when a revealer sees or loses sight of a hider. A sample script, DrawLineToHiderOnReveal.cs, demonstrates this in Demo 01 (Pixel-Perfect) — enable the SampleCharacter/Eye/Draw Line To Hider GameObject to see it in action.

See Hider Visibility Events for details.

Permanently Reveal

Enable Permanently Reveal on the hider to make it stay visible forever once it has been seen at least once — useful for discoverable map features.

Next Steps