logic_measure_movement

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logic_measure_movement is a point entity available in all Source games.

Entity description

It can measure the movement of an entity relative to another entity and apply that movement to a third entity.

Note:Useful for simulating motion outside of the hierarchy system.

Compare with phys_constraint. Warning: Does not properly update collision physics on the object being moved.

Keyvalues

Entity to Measure <targetname>
Entity whose movement you want to measure.
Measure Reference <targetname>
The movement of Entity to Measure will be measured relative to this entity.
Entity to Move <targetname>
This entity will be moved to mimic the motions of Entity to Measure.
Movement Reference <targetname>
The Entity to Move will move relative to this entity.
Movement scale <float>
A scale to divide the measured movements by, before applying those movements to the Entity to Move.
1 = target entity moves as much as the measured entity,
2 = target entity moves half as far as the measured entity, and
0.5 = target entity moves twice as far as the measured entity.
Measurement Type <choices>
What to measure.
  • 0 : Position
  • 1 : Eye position

Targetname:

Name <string>
The targetname that other entities refer to this entity by.
Entity Scripts <scriptlist> (New with Left 4 Dead 2)
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.
Script think function <string> (New with Left 4 Dead 2)
Name of a function in this entity's script which will be called automatically every 100 milliseconds (ten times a second) for the duration of the script. It can be used to create timers or to simulate autonomous behavior. The return value (if present) will set the time until the next call.
Note:Try to avoid expensive operations in this function, as it may cause performance problems.

Inputs

SetMeasureTarget  <string>
Set the Entity to Measure, whose movement should be measured.
SetMeasureReference  <string>
Set the Measure Reference entity.
Target  <string>
Set the Entity to Move, which will be moved to mimic the measured entity.
SetTargetReference  <string>
Set the Movement Reference entity.
SetTargetScale  <float>
Set the scale to divide the measured movements by.
Enable
Enable the logic_measure_movement.
Disable
Disable the logic_measure_movement.

Targetname:

Kill
Removes this entity and any entities parented to it from the world.
KillHierarchy
Functions the same as Kill, although entities with a large number of children are killed marginally faster.
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 means infinite>
FireUser1 to FireUser4
Fire the OnUser outputs; see User Inputs and Outputs.
Use  !FGD
Same as a player invoking +use; may not do anything. Can also be invoked by creating an output that does not specify an input.
This input is not included in Valve's FGDs.
RunScriptFile  <script> (New with Left 4 Dead 2)
Execute a VScript file from disk, without file extension. The script contents are merged with the script scope of the receiving entity.
RunScriptCode  <string> (New with Left 4 Dead 2)
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 <Left 4 Dead 2>, the code is executed in the script scope of the entity that fires the output, not the one receiving the input.
Warning: Never try to pass string parameters to a script function with this input. It will corrupt the VMF structure because of the nested quotation marks, which then must be removed manually with a text editor.
CallScriptFunction  <string> (New with Left 4 Dead 2) !FGD
Execute a VScript function in the scope of the receiving entity.
Note:This input is missing from some games FGD files.
SetLocalOrigin  <origin> (New with Alien Swarm) !FGD
Set this entity's origin in the map.
Note:This input is missing from some games FGD files.
SetLocalAngles  <angles> (New with Alien Swarm) !FGD
Set this entity's angles in the map.
Note:This input is missing from some games FGD files.

Outputs

Targetname:

OnUser1 to OnUser4
These Outputs each fire in response to the firing of the like-numbered FireUser1 to FireUser4 Input; see User Inputs and Outputs.
OnKilled  (New with Left 4 Dead)
This Output fires when the entity is killed and removed from the game.