env_fire
Code classes:
CFire
CBaseEntity
(all ents)
env_fire
is a point entity present in all Source games. It handles a single flame (_firesmoke
) at its origin. The flame causes heat "damage" to other entities around it, and will eventually ignite them and other env_fire
s.
Note: The entity attempts to always place itself directly onto the ground by "dropping" down. The fire may fall through the world if placed exactly at ground level. Place it a little bit above the ground to fix this.
Tip: To make fires appear like they're pointing horizontally, parent them to a rotating object.
Bug: This entity doesn't display correctly in . See here for more details.
Bug: While still available, it does not have particle effects in . See here.
Bug: In , an
env_fire
cannot be extinguished with the fire extinguisher unless Infinite Duration is set.
ConVars/Commands[edit | edit source]
ConVar/Command | Parameters or default value | Parameter Type | Effect |
---|---|---|---|
fire_maxabsorb | 50 | Arbitrary number | 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 | Scalar for how fast fires can absorb heat. |
fire_extscale | 12 | Multiplier | Effectively only a scalar for the Strength of an env_extinguisherjet . |
fire_extabsorb | 5 | Multiplier | To do: Effect description. |
fire_heatscale | 1.0 | Multiplier | Scalar for how much damage a fire can do (both to fires and other objects such as the player). |
fire_incomingheatscale | 0.1 | Multiplier | Scalar for how much heat a fire can take from other fires if it is already ignited. |
fire_dmgscale | 0.1 | Multiplier | To do: Effect description. |
fire_dmgbase | 1 | Health Amount | Base damage that a fire does to objects such as the player. In some games this amount changes depending on the difficulty setting. |
fire_growthrate | 1.0 | Multiplier | 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. |
Flags[edit | edit source]
- 1: Infinite Duration
- 2: Smokeless (good FPS boost)
- 4: Start On - Starts ignited.
- 8: Start Full (makes the fire ignore heat from other entities)
- 16: Don't drop (disables the dropping behavior noted above)
- 32:
No glow- No effect.
- 128: Delete when out (entity will remove itself after extinguishing)
- 256:
Visible from above- No effect.
Keyvalues[edit | edit source]
- Duration
(health)
<integer>
- Amount of time the fire will burn.
- Size
(firesize)
<integer>
- Distance in which the fire can spread heat to other fire entities. Also scales the fire and smoke to look smaller or larger.
- Attack
(fireattack)
<integer>
- Amount of time the fire takes to grow to full strength.[Confirmed]
- Type
(firetype)
<choices>
- Either Natural or Plasma. Natural is a general all purpose flame, like a wood fire.
- 0: Natural
1: Plasma(The particle effect for this type does 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>
(only available in)
- Color of dynamic light for this fire.
- Light Radius Scale
(LightRadiusScale)
<float>
(only available in)
- Multiplier for the glow effect's size.
- Light Brightness
(LightBrightness)
<integer>
(only available in)
- Exponent for the glow brightness.
- Loop sound
(LoopSound)
<sound>
(only available in)
- Looping sound to play while this fire is burning.
- Ignite sound
(IgniteSound)
<sound>
(only available in)
- One shot sound to play when the fire starts.
- Start Disabled
(StartDisabled)
<boolean>
- Stay inactive until Enabled.
- Note: Disabled means it cannot catch on fire by any means.
Inputs[edit | edit source]
- StartFire
- Start the fire.
- Extinguish
<float>
- Puts out the fire permanently after the number of seconds specified.
- ExtinguishTemporary
<float>
- Puts out the fire temporarily after the number of seconds specified.
- Enable
- Makes the entity active.
- Disable
- Makes the entity inactive.
Outputs[edit | edit source]
- OnIgnited
- Fires when the fire is first ignited.
- OnExtinguished
- Fires when the fire is fully extinguished.