Env wind

Class hierarchy
CEnvWind ↳CBaseEntity
effects.cpp

env_wind is an e0 available in all Source games. It creates wind throughout an entire map, which affect physics props and swaying trees.

Important:This is a preserved entity in .
If the game has round restart mechanics this entity may not behave as expected:

More info

On a new round entities with this classname will intentionally not reset. You can use logic_auto to emulate resetting it. Killing it removes it forever, as it is not respawned on a new round. It cannot be spawned with a point_template. Parenting this with non-preserved entities may have undesirable effects.

Note:Wind direction is determined by env_wind's yaw value.

Note:In most games that have $treeSway, this entity is required in order for the materials to simulate wind blowing on them. $treesway does not require env_wind if $treeswaystatic (only in ) is used.

Bug:The wind effect in the client game will not reset when a new map is loaded which does not contain an env_wind entity.  [todo tested in ?]

Tip:In Black Mesa this entity can be spawned via point_template and killed with Kill input. This allows you to change the wind globally or turn it off completely by spawning new env_wind and killing via Kill input the previous env_wind.

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

Min normal speed (minwind) <integer>

Minimum speed of the wind while idling.

Max normal speed (maxwind) <integer>

Maximum speed of the wind while idling.

Min gust speed (mingust) <integer>

Minimum speed of wind gusts.

Max gust speed (maxgust) <integer>

Maximum speed of wind gusts.

Min gust delay (mingustdelay) <integer>

Minimum time delay between random gusts.

Max gust delay (maxgustdelay) <integer>

Maximum time delay between random gusts.

Gust Duration (gustduration) <integer>

How long will the wind gust for.

Max gust dir change (degrees) (gustdirchange) <integer>

Maximum amount that the wind's direction changes due to a gust.

Radius (windradius) <float> (only in )

The radius this entity applies wind effects to. -1 for global effect.

Inputs

SetWindDir <integerRedirectInput/integer> (only in ) !FGD

Set the wind's direction to this.

Enable  (only in )

Turns the wind on.

Disable  (only in )

Turns the wind off.

Outputs

OnGustStart

Fired when a wind gust begins.

Bug:env_wind gusts can seemingly pile up and fire this output multiple times when a player first loads into a multiplayer map.

Workaround:Use AddOutput to add OnGustStart effects when players are already connected

Todo: Needs more testing, only observed in

  [todo tested in ?]

OnGustEnd

Fired when a wind gust ends.

See also

• trigger_wind
• trigger_push
• env_rotorwash