Logic navigation

From Valve Developer Community

The title given to this article is incorrect due to technical limitations. The correct title is logic_navigation.

This point-based entity is available in all Source games.

Table of contents
1 Entity Description
2 Keyvalues
3 Flags
4 Inputs
5 Outputs
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Entity Description

An entity that is used to set navigation properties on other entities. Useful to make NPCs ignore physics props in their way that they can easily push.

  • Due to some irregularities in the base FGD, this entity's keys are best used with SmartEdit off.
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Keyvalues

Defines the name that other entities refer to this entity by.
  • hammerid [Episode Two Update]
<integer readonly> This id is used for debugging purposes in Hammer.
  • target
<target_destination> Name of the entity to set navigation properties on.
  • navprop
<choices>
Literal Value Description
Ignore NPCs Ignore this when navigating (they'll bump into it)
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Flags

  • 1 : Start On
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Inputs

  • Kill
Removes this entity from the world.
Removes this entity and all its children from the world.
  • AddOutput <string>
Evaluates a keyvalue/output on this entity. It can be potentially very dangerous, use with care.
Format: <key> <value>
Format: <output name> <targetname>:<inputname>:<parameter>:<delay>:<max times to fire (-1 == infinite)>
Causes this entity's OnUser1-4 outputs to be fired. See User Inputs and Outputs.
  • TurnOn
Turn on. The Navigation Entity will have its navigation properties set.
  • TurnOff
Turn off. The Navigation Entity will have its navigation properties returned to the default settings.
  • Toggle
Toggle on/off.
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Outputs

Fired in response to FireUser1-4 inputs. See User Inputs and Outputs.
!activator = activator
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