func_rotating
func_rotating
is a brush entity available in all Source games.
Note: This entity did not rotate visually until the 19/12/2018 patch, due to bugged implementation of the
Client-side rotation
spawnflag.Bug:Always fire the
Stop
input on this entity before killing it, otherwise looping sounds may continue playing forever!Bug:The maximum degrees this angle can turn is 360000 degrees, at which it stops rotating.
- Fix: This can be remedied by scripting the entity to pause rotating for a short period of time.
Contents
Entity Description
It is used to create rotating brushes. Compare with func_door_rotating
.
Friction Explanation & Formula
Fan friction may be a little tricky to understand. Below is an explanation of how it works.
If Hammer has the fanfriction key set to 0 and the game spawns the entity, code sets it to 1 so it doesn't divide by zero.
Friction = fanfriction key / 100
Key | Hammer Value | Code Value |
---|---|---|
fanfriction | 100 | 1 |
fanfriction | 50 | 0.5 |
fanfriction | 0/1 | 0.01 |
Note: These formulas get called every 0.1 seconds.
Purpose:
Think function: Accelerates a func_rotating
to a higher angular velocity.
new_speed = fabs( current_speed ) + 0.2 * maxspeed * fanfriction;
Purpose: Decelerates the rotator from a higher speed to a lower one.
new_speed = fabs( current_speed ) - 0.1 * maxspeed * fanfriction;
Conclusion:
- A higher
fanfriction
value will accelerate/deaccelerate faster. - A lower
fanfriction
value will accelerate/deaccelerate slower.
Keyvalues
- Max Rotation Speed
(maxspeed)
<integer> - The maximum rotation speed of the brushes, in degrees per second. Seems to be limited to a number around 2000, after which the rotational speed ignores the last remaining digits (e.g., 2500=250).
- Friction (0 - 100%)
(fanfriction)
<integer> - The amount of rotational friction. Value must be between 0 and 100 %. The lower the friction is, the slower it spins up and spins down. This is the opposite of how it would work in real life.
- Rotating sound WAV
(message)
<sound> - Sound to play while rotating.Bug:Always fire the
Stop
input on this entity before killing it, otherwise looping sounds may continue playing forever!
- Volume (10 = loudest)
(volume)
<integer> - The volume of the rotation sound.
- Minimum Light Level
(_minlight)
<string> - The minimum level of ambient light that hits this brush.
- Blocking Damage
(dmg)
<integer> - Damage done to any entity that blocks the rotation, per frame.
- Solid Type
(solidbsp)
<choices> - Brush solidity type
- 0 : VPhysics
- 1 : BSP
Base:
- Collisions
(solid)
<choices> - Method of collision for this entity.
Values:
- 0: None
- 1: BSP (QPhysics) !FGD Bug:In , if an entity using QPhysics collisions is hit by Gel, the game will crash!
- 2: Bounding Box
- 3: Oriented Bounding Box (Use for runtime spawned brush entities meant to be rotated) !FGD
- 4: Oriented Bounding Box but constrained to Yaw only !FGD
- 5: Custom/Test (Usually no collision with anything) !FGD
- 6: VPhysics
- Parent
(parentname)
<targetname> - Maintain the same initial offset to this entity. An attachment point can also be used if separated by a comma at the end. (
parentname [targetname],[attachment]
)Tip:Entities transition to the next map with their parentsTip:phys_constraint
can be used as a workaround if parenting fails.
- Origin (X Y Z)
(origin)
<coordinates> - The position of this entity's center in the world. Rotating entities typically rotate around their origin.Note:Hammer does not move the entities accordingly only in the editor.
- Pitch Yaw Roll (X Y Z)
(angles)
<angle> - This entity's orientation in the world. Pitch is rotation around the Y axis, yaw is the rotation around the Z axis, roll is the rotation around the X axis.Note:This works on brush entities, although Hammer doesn't show the new angles.
- Classname
(classname)
<string> !FGD - Determines the characteristics of the entity before it spawns. Tip:Changing this on runtime still has use, like making matching an entry in S_PreserveEnts will persist the entity on new rounds!
- Flags
(spawnflags)
<integer> !FGD - Toggles exclusive features of an entity, its specific number is determined by the combination of flags added.
- Effects
(effects)
<integer> !FGD - Combination of effect flags to use.
- Entity Scripts
(vscripts)
<scriptlist> (in all games since ) (also in ) - Space delimited list of VScript files (without file extension) that are executed after all entities have spawned. The scripts are all executed in the same script scope, later ones overwriting any identical variables and functions. Scripts executed on the worldspawn entity will be placed in root scope.
- Think function
(thinkfunction)
<string> (in all games since ) (also in ) - Name of the function within this entity's script that'll be called automatically every 100 milliseconds, or a user-defined interval if the function returns a number. Avoid expensive operations in this function, as it may cause performance problems.
- Lag Compensation
(LagCompensate)
<boolean> (in all games since ) !FGD - Set to Yes to lag compensate this entity. Should be used very sparingly!
- Is Automatic-Aim Target
(is_autoaim_target)
<boolean> (in all games since ) !FGD - If set to 1, this entity will slow down aiming movement for consoles and joystick controllers when the entity is under the crosshairs.
Internal keyvalues used by VRAD:
- Minimum Light Level
(_minlight)
<float> - Multiplier of minimum amount of light to hit this brush.
- Shadows
(vrad_brush_cast_shadows)
<choices> - Determines if this entity will cast lightmap shadows.
- 0: No shadows
- 1: Cast shadows
VisibleBrush:
- Render Mode
(rendermode)
<choices> - Set a non-standard rendering mode on this entity.
- Render FX
(renderfx)
<choices> - Various somewhat legacy alpha effects.
Bug:Alpha effects from 0 to 10 are unavailable due to the bug in code in Counter-Strike: Global Offensive
|
- Render FX / Transparency (0–255)
(renderamt)
<integer 0–255> - Transparency amount; requires a Render Mode other than Normal. 0 is invisible, 255 is fully visible.
- Render Color (R G B)
(rendercolor)
<color255> - Color tint.
- Texture Frame
(texframeindex)
<integer> !FGD - The frame number for any animated textures on this entity.
Shadow:
- Disable Shadows
(disableshadows)
<boolean> - Prevents the entity from creating cheap render-to-texture shadows, or lightmap shadows if the entity is a
prop_static
. Does not affect shadow mapping.
- Disable Receiving Shadows
(disablereceiveshadows)
<boolean> - Prevent the entity from receiving dynamic shadows on itself.
- Shadow Cast Distance
(shadowcastdist)
<integer> !FGD - Sets how far the entity casts dynamic shadows. 0 means default distance from the
shadow_control
entity. - Disable ShadowDepth
(disableshadowdepth)
<boolean> (in all games since ) - Used to disable rendering into shadow depth (for projected textures) for this entity.
- Disable flashlight
(disableflashlight)
<boolean> (in all games since ) - Used to disable projected texture lighting and shadows on this entity.
- Projected Texture Cache
(shadowdepthnocache)
<choices> (in all games since ) - Used to hint projected texture system whether it is sufficient to cache shadow volume of this entity or to force render it every frame instead.
|
SystemLevelChoice:
- Minimum / Maximum Effect Details Level
(mincpulevel / maxcpulevel)
<choices> (in all games since ) - Don't render for players with Effect Details levels that exceed the minimum or maximum.[Key names are related to
cpu_level
cvar used by Effect Details.]
|
- Minimum / Maximum Shader Details Level
(mingpulevel / maxgpulevel)
<choices> (in all games since ) - Don't render for players with Shader Details levels that exceed the minimum or maximum.[Key names are related to
gpu_level
cvar used by Shader Details.]
|
DXLevelChoice:
- Minimum / Maximum DX Level
(mindxlevel / maxdxlevel)
<choices> (removed since ) - The entity will not exist if the engine is running outside the given range of DirectX Versions.
Warning:If these are used, the object may break when the user switches their DirectX settings.
|
Reflection:
- Render in Fast Reflections
(drawinfastreflection)
<boolean> (in all games since ) - If enabled, this entity will render in fast water reflections (i.e. when a water material specifies
$reflectonlymarkedentities
) and in the world impostor pass.
Flags
- [
1
] : Start ON
- [
2
] : Reverse Direction
- [
4
] : X Axis
If enabled, the entity will spin at the X Axis.
- [
8
] : Y Axis
If enabled, the entity spin at the Y Axis.
- [
16
] : Acc/Dcc
If enabled, the entity will accelerate and decelerate from maximum speed based on the Friction property.
- [
32
] : Fan Pain
With this enabled, the player will be hurt when coming into contact with the brush.
- [
64
] : Not Solid
- [
128
] : Small Sound Radius
Use ATTN_IDLE (60dB).
- [
256
] : Medium Sound Radius
Use ATTN_STATIC (~67dB).
- [
512
] : Large Sound Radius
Use ATTN_NORM (~75dB). If the other two options are unset, this is used.
Inputs
SetSpeed
<float>- Set the speed as a ratio of the specified Max Rotation Speed, where 0 is stopped and 1 is the Max Rotation Speed. Negative values rotate backwards.
Start
- Start the rotator rotating.
Stop
- Stop the rotator from rotating.
StopAtStartPos
Stop
the rotator from rotating when it gets around to the start position again (on its rotation axis). If the speed is greater than 100 degrees per second, slows down to 100 degrees per second and spins for one extra revolution before stopping.
StartForward
- Start the rotator rotating forward at maximum speed.
StartBackward
- Start the rotator rotating backward at maximum speed.
Toggle
- Toggle the rotator between rotating and not rotating.
Reverse
- Reverse the direction of rotation of the rotator, preserving the current speed.
GetSpeed
(in all games since )- Causes the
func_rotating
to fire itsOnGetSpeed
output with its current speed.
Base:
AddContext
<string>- Adds to the entity's list of response contexts. See Context.
AddOutput
<string>- Assigns a new keyvalue/output on this entity. For keyvalues, some rely on extra necessary code to be ran and won't work if its simply just changed through this input. There is a strict format that must be followed:
// Format of changing KeyValues: "AddOutput [key] [value]"
//// Raw text:
"OnUser1" "!self,AddOutput,targetname new_name"
// Format of adding an Output: "AddOutput {targetname}:{inputname}:{parameter}:{delay}:{max times to fire, -1 means infinite}"
//// Raw text:
"OnUser1" "!self,AddOutput,OnUser1:SetParent:!activator:0.0:-1"
// Arguments can be left blank, but the empty blank should still be contained.
//// Raw text:
"OnUser1" "!self,AddOutput,OnUser1:ClearParent::0.0:-1"
|
ClearContext
- Removes all contexts from this entity's list.
ClearParent
- Removes this entity from the the movement hierarchy, leaving it free to move independently.
FireUser1
toFireUser4
- Fires the respective
OnUser
outputs; see User Inputs and Outputs.
Kill
- Removes this entity and any entities parented to it from the world.
KillHierarchy
- Functions the same as
Kill
, although this entity and any entities parented to it are killed on the same frame, being marginally faster thanKill
input.
RemoveContext
<string>- Remove a context from this entity's list. The name should match the key of an existing context.
SetParent
<string>- Move with this entity. See Entity Hierarchy (parenting).
SetParentAttachment
<string>- Change this entity to attach to a specific attachment point on its parent. The entity will teleport so that the position of its root bone matches that of the attachment. Entities must be parented before being sent this input.
SetParentAttachmentMaintainOffset
<string>- As above, but without teleporting. The entity retains its position relative to the attachment at the time of the input being received.
DispatchResponse
<string> !FGD- Dispatches a response to the entity. See Response and Concept.
DispatchEffect
<string> (removed since ) !FGD- Dispatches a special effect from the entity's origin; See also List of Client Effects. Replaced by the particle system since .
RunScriptFile
<script> (in all games since ) (also in )- Execute a VScript file from disk, without file extension. The script contents are merged with the script scope of the receiving entity.
RunScriptCode
<string> (in all games since ) (also in )- Execute a string of VScript source code in the scope of the entity receiving the input. String quotation may be needed when fired via console. Bug:In Hammer, using string arguments will corrupt the VMF file's structure, making the file unviewable for the next Hammer session.Fix:Remove the string argument manually with a text editor.
CallScriptFunction
<string> (in all games since ) (also in ) !FGD- Calls a VScript function defined in the scope of the receiving entity.
TerminateScriptScope
(only in ) !FGD- Destroys the script scope of the receving entity.
SetLocalOrigin
<coordinates> (in all games since ) !FGD- Send this entity to a spot in the map. If the entity is parented to something, it will be offset from the parent by this amount.
Visible Brush:
Alpha
<integer 0–255>- Sets the entity's transparency to a number from 0 (invisible) to 255 (fully visible). Requires the entity to have its Render Mode (rendermode) set to a number other than
0
.
AlternativeSorting
<boolean>- Swaps the rendering order of the entity. Used to attempt to fix sorting problems when rendering, for example an object rendering in front of translucent materials.
Color
<color255>- Sets an RGB color for the entity.
SetDamageFilter
<targetname>- Sets a filter for this entity for when it receives damage.
EnableDamageForces
- Allows the entity to be pushed by damage done to it (usually force amount correlates with the damage done).
DisableDamageForces
- Prevents the entity from being pushed by damage done to it.
EnableDraw
(in all games since )- Removes
EF_NODRAW
from the entity.
DisableDraw
(in all games since )- Applies
EF_NODRAW
to the entity. Note that this is different fromrendermode 10
.
EnableReceivingFlashlight
(in all games since )- Makes it so that the entity is lit by
env_projectedtexture
s.
DisableReceivingFlashlight
(in all games since )- Prevents the entity from being lit by
env_projectedtexture
s. The shadow made by the texture will still cast.
Reflection:
DisableDrawInFastReflection
(in all games since )- Turns off rendering of this entity in reflections when using
$reflectonlymarkedentities
in water material.
EnableDrawInFastReflection
(in all games since )- Turn on rendering of this entity in reflections when using
$reflectonlymarkedentities
in water material.
Shadow:
DisableShadow
- Turn dynamic shadows off for this entity. Identical to applying
EF_NOSHADOW
.
EnableShadow
- Turn dynamic shadows on for this entity.
DisableReceivingFlashlight
(in all games since )- This object will not receive light or shadows from projected textures.
Outputs
OnGetSpeed
<integer> (in all games since )- Fired when the
GetSpeed
input is called. The current speed of thefunc_rotating
is passed with this output.
Targetname:
OnUser1
toOnUser4
- These outputs each fire in response to the firing of the like-numbered
FireUser1
toFireUser4
Input; see User Inputs and Outputs.