env_flare

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January 2024

A flare at the beginning of d2_prison_08.

env_flare is an e0 available in Half-Life 2 series. Creates a red flare. Useful for creating a dark environment with just enough light to navigate. The flickering red light of the flare creates a tense atmosphere and a strong feeling of fight-or-die.

Tip:To make flares like the ones seen in Episode One, create a prop_physics with the model props_junk/flare.mdl. The rest (activation, burning, etc) is handled automatically. Note that this model was only added in Episode One.

Note:CFlare inherits CBaseCombatCharacter, so it can have relationships defined.

Note:This entity is also in the code for . Its functionality is not guaranteed.

In code, it is represented by theCFlareclass, defined in theweapon_flaregun.cppfile.

Flags

• 1: No DLight (Emit no light. Will probably look unrealistic.)
• 2: No Smoke
• 4: Infinite (perpetually activated)
• 8: Start off

Keyvalues

Scale (scale) ([todo internal name (i)]) <float>

Multiplier for the signal particle effects (not light emitted).

Duration (duration) ([todo internal name (i)]) <float> 

Deprecated.
How long the flare is active for. Defined, but not used in code. Use the Start input instead.

CBaseCombatCharacter:

Relationship (Relationship) <string> !FGD

<string|targetname or classname> <string|disposition> <int|rank>

Changes whether this entity likes or dislikes certain other things. Used like the ai_relationship entity, with this entity as the subject.

Values for disposition are:

• D_HT: Hate
• D_FR: Fear
• D_LI: Like
• D_NU: Neutral

Physics Impact Damage Scale (physdamagescale) <float>

Multiplier for damage amount when this entity is hit by a physics object. With a value of 0 the entity will take no damage from physics.

Note:Content moved to Rendering and studio model related KIO/Keyvalues for continuation of page history

Inputs

Start <floatRedirectInput/float>

Make flare active for a specified number of seconds. Flare will be removed from the map after dying.

Die <floatRedirectInput/float>

Make flare fizzle out over a specified number of seconds. Once dead, it is removed from the map.

Launch <floatRedirectInput/float>

Launch the flare forward with the specified speed. The direction of travel is determined by the Pitch Yaw Roll keyvalue.

CBaseCombatCharacter:

KilledNPC  !FGD

Tells the entity it killed something. Despite the name, this can include a player. This input will be automatically sent by the victim when they die.

physdamagescale <floatRedirectInput/float>

Scales damage energy when this character is hit by a physics object. With a value of 0 the NPC will take no damage from physics.

Note:Content moved to Rendering and studio model related KIO/Inputs for continuation of page history

Outputs

Note:Content moved to Rendering and studio model related KIO/Outputs for continuation of page history