env_fire
env_fire
is a point entity available in all Source games. It handles a single flame (_firesmoke
) at its origin. The flame causes heat "damage" to other env_fire
entities around it and will eventually ignite them, causing the fire to spread.
Note:The fire may fall through the world on spawn if placed exactly at ground level. Place it a little bit above the ground to fix this.
Bug:This entity doesn't work in Portal. Please see Portal:Env Fire fix for more details
Bug:While still available, it does not have particle effects in Team Fortress 2. This method is recommended instead.
class hierarchy |
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CFire defined in fire.cpp
|
Keyvalues
Targetname:
- Name
(targetname)
<string> - The targetname that other entities refer to this entity by.
- Duration
(health)
<integer> - Amount of time the fire will burn.
- Size
(firesize)
<integer> - Height (in world units) of the flame.
- Attack
(fireattack)
<integer> - Amount of time the fire takes to grow to full strength.
- Type
(firetype)
<choices> - Either Natural or Plasma. Natural is a general all purpose flame, like a wood fire.
- 0: Natural
- 1: Plasma Warning:Effects for this type do not exist!
- Ignition Point
(ignitionpoint)
<float> - Amount of heat 'damage' to take before this flame should ignite.
- Damage Scale
(damagescale)
<float> - Multiplier of the burn damage done by the flame.
- Light Color
(LightColor)
<color255> (in all games since ) - Color of dynamic light for this fire.
- Light Radius Scale
(LightRadiusScale)
<float> (in all games since ) - Multiplier for the glow radius.
- Light Brightness
(LightBrightness)
<integer> (in all games since ) - Integer exponent for the glow brightness.
- Loop sound
(LoopSound)
<sound> (in all games since ) - Looping sound to play while this fire is burning.
- Ignite sound
(IgniteSound)
<sound> (in all games since ) - One shot sound to play when the fire starts.
- Start Disabled
(StartDisabled)
<boolean> - Stay dormant until activated.
Note:Unless you also checked the "Start On" flag,
env_fire
will not automatically ignite even if you set this keyvalue to No. Likewise, env_fire
will still ignite if you have the "Start On" flag checked, even if this key value is set to Yes.Flags
- [
1
] : Infinite DurationNote:In Alien Swarm, anenv_fire
cannot be extinguished with the fire extinguisher unless Infinite Duration is set.
- [
2
] : Smokeless
- [
4
] : Start On
- [
8
] : Start FullHow?: as in, start out ready to ignite as soon as it's damaged?
- [
16
] : Don't drop
- [
32
] : No glow
- [
128
] : Delete when out
Inputs
StartFire
- Start the fire.
Extinguish
<float>- Puts out the fire permanently in the number of seconds specified.
ExtinguishTemporary
<float>- Puts out the fire temporarily in the number of seconds specified.
EnableDisable:
Enable
Disable
- Enable/disable this entity from performing its task. It might also disappear from view.
Outputs
OnIgnited
- Fires when the fire is first ignited.
OnExtinguished
- Fires when the fire is fully extinguished.
ConVars/Commands
Cvar/Command | Parameters or default value | Descriptor | Effect |
---|---|---|---|
fire_maxabsorb | 50 | Arbitrary number (float) | Upper limit for how much heat "damage" a fire can take before the damage begins to force the flame to grow. Heat is usually absorbed from other env_fire s. |
fire_absorbrate | 3 | Multiplier (float) | Scalar for how fast fires can absorb heat. |
fire_extscale | 12 | Multiplier (float) | Effectively only a scalar for the Strength of an env_extinguisherjet . |
fire_extabsorb | 5 | Multiplier (float) | Todo: Effect description.
|
fire_heatscale | 1.0 | Multiplier (float) | Scalar for how much damage a fire can do (both to fires and other objects such as the player). |
fire_incomingheatscale | 0.1 | Multiplier (float) | Scalar for how much heat a fire can take from other fires if it is already ignited. |
fire_dmgscale | 0.1 | Multiplier (float) | Todo: Effect description.
|
fire_dmgbase | 1 | Health Amount | Base damage that a fire does to objects such as the player. This amount multiplies depending on the user's difficulty setting:
|
fire_growthrate | 1.0 | Multiplier (float) | Scalar for how much heat a fire can passively add to itself at once. Thinking interval is 0.1 seconds. |
fire_dmginterval | 1.0 | Seconds | Once a fire has damaged something, it will wait this long before it can damage anything again. |