Env laser

From Valve Developer Community

The title given to this article is incorrect due to technical limitations. The correct title is env_laser.

This point-based entity is available in all Source games. In code it is represented by class CEnvLaser (http://localhost/class_c_env_laser.html), defined in EnvLaser.cpp (http://localhost/_env_laser_8cpp-source.html).

Table of contents

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Entity Description

An entity that creates a laser beam between itself and a given target. It is somewhat similar to env_beam.

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Keyvalues

targetname <target_source>

Defines the name that other entities refer to this entity by.

hammerid [Episode Two Update]

<integer readonly> This id is used for debugging purposes in Hammer.

parentname <target_destination>

Specifies the targetname of this entity's Parent in a movement hierarchy. Child entities move with their Parent.

renderfx

Literal Value	Description
0	Normal
1	Slow Pulse
2	Fast Pulse
3	Slow Wide Pulse
4	Fast Wide Pulse
5	Slow Fade Away
6	Fast Fade Away
7	Slow Become Solid
8	Fast Become Solid
9	Slow Strobe
10	Fast Strobe
11	Faster Strobe
12	Slow Flicker
13	Fast Flicker
14	Constant Glow
15	Distort
16	Hologram (Distort + fade)
17	Scale up
22	Spotlight FX
23	Cull By Distance (TEST)
24	Fade Wider Pulse

LaserTarget

<target_destination> Name of entity, or entities, to strike at. The target is randomly chosen if there are multiple entities matching the given name.

renderamt

<byte> Brightness (1 - 255).

rendercolor

<color255> Beam Color (R G B).

width

<float> The width of the laser beam, in pixels.

NoiseAmplitude

<integer> The amount of noise in the beam. 0 is a perfectly straight beam.

texture

<material> The material used to draw the laser beam. (sprites/laserbeam)

EndSprite

<material> If specified, this sprite will be drawn at the end of the laser beam.

TextureScroll

<integer> Rate at which the beam texture should scroll along the beam.

framestart

<float> The frame to start the beam texture on.

damage

<float> How much damage this laser does. per second. to things it hits.

dissolvetype

<choices> Dissolve Type.

Literal value	Description
-1	None
0	Energy
1	Heavy electrical
2	Light electrical

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Flags

1 : Start On
16 : StartSparks
32 : EndSparks
64 : Decal End

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Inputs

Kill

Removes this entity from the world.

KillHierarchy

Removes this entity and all its children from the world.

AddOutput <string>

Evaluates a keyvalue/output on this entity. It can be potentially very dangerous, use with care.

Format: <key> <value>

Format: <output name> <targetname>:<inputname>:<parameter>:<delay>:<max times to fire (-1 == infinite)>

FireUser1-4

Causes this entity's OnUser1-4 outputs to be fired. See User Inputs and Outputs.

SetParent <target_destination>

Changes the entity's parent in the movement hierarchy.

SetParentAttachment <string>

Change this entity to attach to a specific attachment point on its parent. Entities must be parented before being sent this input. The parameter passed in should be the name of the attachment.

SetParentAttachmentMaintainOffset <string> [Episode One Update]

Change this entity to attach to a specific attachment point on it's parent. Entities must be parented before being sent this input. The parameter passed in should be the name of the attachment. The entity will maintain it's position relative to the Parent's Origin and Angles at the time it is attached.