Path corner

path_corner
Type	Point entity
Engine	Source
Availability	In all games

Class hierarchy
CPathCorner ↳CPointEntity ↳CBaseEntity
pathcorner.cpp

Entity description

Notes

• A path_corner is a corner in a path, either for a func_train or an NPC. path_corners can be chained together to form complex routes. To create a path_corner chain simply shift+drag an existing path_corner. The values will automatically be filled in. To manually make a chain (or link one up in a circle), edit the Next stop target property.
• A path_corner_crash is identical to a path_corner, but can be enabled and disabled for a crash point; when an NPC is searching for a crash point, it will not search for generic path_corners
• The path_corner entity is !FGD for base.fgd, so it only will appear in Hammer for Half-Life 2

In code, it is represented by theCPathCornerclass, defined in thepathcorner.cppfile.

NPCs

A path_corner can be a destination for an NPC. When told to, NPCs will stop other movement and walk steadily towards a path_corner. It is entirely scripted behavior. Note that the Train Speed and wait values do not affect NPCs.

To make an NPC move to a path_corner edit the Target Path Corner keyvalue, either in Hammer or through the I/O system. Alternatively, an NPC can be made to follow a path_corner chain by using the aiscripted_schedule or scripted_sequence entities.

• See also Assaults for an alternative way to create NPC routes without using path_corner.

Limitations and bugs

• A path_corner (or the first path_corner on a chain) must be within 576 units for NPCs to find it.
• It is either difficult or impossible to tell an NPC which direction to face once they've reached a path corner. If this is important, you may want to consider using Assaults instead.

Examples

• See the apc_on_path and the npc_scanner_on_path prefabs for examples on usage.
• Download Example (VMF)

Note that the example map does not have any info_nodes. They are not needed to have an NPC follow a path.

Keyvalues

Name (targetname) <string>[ Edit ]

The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g. parentname or target).
Also displayed in Hammer's 2D views and Entity Report.

See also:  Generic Keyvalues, Inputs and Outputs available to all entities

Next stop target (target) <string>

Wait here (secs) (wait) <float>

New train speed (speed) <float>

Leave at zero to leave path follower's speed the same

Flags

Wait for retrigger : [1]

Teleport to THIS path_corner : [2]

Inputs

SetNextPathCorner <targetnameRedirectInput/string>

Set target path_corner

Outputs

OnPass

Fires when a path follower passes this point. (!activator is the train)