From Valve Developer Community
Jump to: navigation, search

npc_heli_avoidbox is a brush entity available in the following Source Source games or engine branches:
Half-Life 2 Half-Life 2Half-Life 2: Episode One Half-Life 2: Episode OneHalf-Life 2: Episode Two Half-Life 2: Episode Two and Half-Life 2: Deathmatch Half-Life 2: Deathmatch.

Entity description

Defines a brush-based area which helicopter NPCs should avoid. npc_helicopter and npc_combinegunship avoid this area, but not npc_combinedropship.


!FGD Targetname:

Name (targetname) <string>
The targetname that other entities refer to this entity by.

Origin (X Y Z) (origin) <origin>
The position of this entity's center in the world. Rotating entities typically rotate around their origin.


Pitch Yaw Roll (Y Z X) (angles) <angle>
This entity's orientation in the world. Pitch is rotation around the Y axis, yaw is the rotation around the Z axis, roll is the rotation around the X axis.

Parent (parentname) <targetname>
Specifies a movement parent. An entity will maintain its initial offset from its parent. An attachment point can be added to the end of the name, separated by a comma.


  • 65536 : Avoid the box above and below


SetParent <string>
Move with this entity. See Entity Hierarchy (parenting).
SetParentAttachment <string>
Change this entity to attach to a specific attachment point on its parent. The entity will teleport so that the position of its root bone matches that of the attachment. Entities must be parented before being sent this input.
SetParentAttachmentMaintainOffset <string>
As above, but without teleporting. The entity retains its position relative to the attachment at the time of the input being received.
Removes this entity from the the movement hierarchy, leaving it free to move independently.

See also