func_physbox

func_physbox is a brush entity available in all Source games.

Entity description

It is treated as a physics object.

Flags

• 4096 : Start Asleep
• 8192 : Ignore +USE for Pickup
• 16384 : Debris - Don't collide with the player or other debris
• 32768 : Motion Disabled
• 65536 : Use Preferred Carry Angles
• 131072 : Enable motion on Physcannon grab
• 262144 : Not affected by rotor wash
• 524288 : Generate output on +USE
• 1048576 : Physgun can ALWAYS pick up. No matter what.
• 2097152 : Physgun is NOT allowed to pick this up.
• 4194304 : Physgun is NOT allowed to punt this object.
• 8388608 : Prevent motion enable on player bump

Breakable (brush):

• 1: Only Break on Trigger
• 2: Break on Touch
• 4: Break on Pressure
• 512: Break immediately on Physics
• 1024: Don't take physics damage
• 2048: Don't allow bullet penetration

Keyvalues

Minimum Light Level <string>

The minimum level of ambient light that hits this brush.

Impact Damage Type <choices>

Sets the "sharpness" of the brush. Sharp objects are far more damaging.

• 0 : Blunt
• 1 : Sharp

Mass Scale <float>

A scale multiplier for the object's mass. Use the convar sv_massreport 1 to see the actual mass of the object ingame.

Override Parameters <string>

A list of physics key/value pairs that are usually in a physics prop .qc file. Format is 'key,value,key,value,etc'.

Health Level to Override Motion <integer>

If specified, this object will start motion disabled. Once its health has dropped below this specified amount, it will enable motion.

Physics Impact Force to Override Motion <float>

If specified, this object will start motion disabled. Any impact that imparts a force greater than this value on the physbox will enable motion.

Strength <integer>

Number of points of damage to take before breaking. 0 means don't break.

Preferred Player-carry Angles <vector>

If the 'Use Preferred Carry Angles' spawnflag is set, this angle is the angle which the object should orient to when the player picks it up, with the physgun or +USE.

Not solid to world <choices>

If set, the object will pass through world geometry.

• 0 : Solid to World
• 1 : Passes through World

Breakable (brush):

Prop Data (propdata) <choices>

Set to the best approximation of the size and material of this entity's brushes. If set, this will override Strength and Material Type. If set, it will override this entity's health and damage taken from various weapons. See prop_data base types for what each entry specifies.

Note:Some settings can make the brush unbreakable.

• 0: None
• 1: Wooden.Tiny
• 2: Wooden.Small
• 3: Wooden.Medium
• 4: Wooden.Large
• 5: Wooden.Huge
• 6: Metal.Small
• 7: Metal.Medium
• 8: Metal.Large
• 9: Cardboard.Small
• 10: Cardboard.Medium
• 11: Cardboard.Large
• 12: Stone.Small
• 13: Stone.Medium
• 14: Stone.Large
• 15: Stone.Huge
• 16: Glass.Small
• 17: Plastic.Small
• 18: Plastic.Medium
• 19: Plastic.Large
• 20: Pottery.Small
• 21: Pottery.Medium
• 22: Pottery.Large
• 23: Pottery.Huge
• 24: Glass.Window

Strength/Health (health) <integer>

The damage to take before breaking. The brush will not break from damage if this is 0.

Material Type (material) <choices>

Set to the material type of the brush. Decides what sounds to make when damaged, and what gibs to produce when broken.

• 0: Glass - As stated, uses glass gibs and sounds. Gibs may not match with material used.
• 1: Wood - As stated, uses wood gibs and sounds. Gibs may not match with material used, and may be too big for certain brushes.
• 2: Metal - As stated, uses metal gibs and sounds. Gibs are very small, and evidently made for vents. May not match material.
• 3: Flesh - Uses HL1 gib death sounds and wood gibs. Not much practicality for this type unless one is making a meat slab (With proper gibs, of course).
• 4: CinderBlock - Uses concrete gibs and sounds. Gibs may not match with material and be too big for the brush.
• 5: Ceiling Tile - Uses tile sounds, wood gibs and HL1 plaster gib death sound.
• 6: Computer - Uses spark sounds and wood gibs, coupled with an HL1 gib death sound.
• 7: Unbreakable Glass - Uses glass sounds. Using this material type overrides any Strength value previously set to 0, making it unbreakable.
• 8: Rocks - Uses concrete gibs and sounds. Gibs may not match with material, and don't even look like rocks to begin with.
• 9: Web !FGD - Only functional in Half Life Source.
• 10: None

Gibs Direction (explosion) <choices>

Used to decide which direction to throw gibs when broken.

• 0: Random
• 1: Relative to Attack
• 2: Use Precise Gib Dir (see below)

Precise Gib Direction (gibdir) <angle>

An exact direction in which to throw gibs when breaking. Be sure to select "Use Precise Gib Dir" in Gibs Direction!

Damaging it Doesn't Push It (nodamageforces) <boolean>

When enabled the brush will move in response to damage.

Gib Model (gibmodel) <string>

Used by HL1Port to specify a custom gib model to break into, overriding the Material Type.

Spawn On Break (spawnobject) <choices>

When broken, an entity of the selected type will be created.

Note:Only these entities may be spawned. This can be fixed by modifying func_break.cpp.

1. item_battery
2. item_healthkit
3. item_ammo_pistol
4. item_ammo_pistol_large
5. item_ammo_smg1
6. item_ammo_smg1_large
7. item_ammo_ar2
8. item_ammo_ar2_large
9. item_box_buckshot
10. item_flare_round
11. item_box_flare_rounds
12. item_ml_grenade
13. item_smg1_grenade (unusable!)
14. item_box_sniper_rounds
15. Unused
16. weapon_stunstick
17. weapon_ar1 (unusable!)
18. weapon_ar2
19. Unused
20. weapon_ml
21. weapon_smg1
22. weapon_smg2 (unusable!)
23. weapon_slam (unusable!)^[Why?]
24. weapon_shotgun
25. weapon_molotov (unusable!)
26. item_dynamic_resupply

Explode Magnitude (explodemagnitude) <integer>

If non-zero, when this entity breaks it will create an explosion that causes the specified amount of damage.

Confirm:Damage radius is proportional to magnitude.

Dead model (deadmodel) <model> !FGD 

Deprecated. Purpose unknown. Does absolutely nothing inside code.

Shards (shards)  !FGD 

Deprecated. Purpose unknown. Does absolutely nothing inside code.

Lip (lip)  !FGD 

Deprecated. Purpose unknown. Does absolutely nothing inside code.

Breakable (common):

Performance Mode (PerformanceMode) <choices>

Used to limit the amount of gibs produced when this entity breaks, for performance reasons.

• 0: Normal
• 1: No Gibs
• 2: Full Gibs on All Platforms (Xbox 360, PS3, etc)
• 3: Reduced gibs

Min Damage to Hurt (minhealthdmg) <integer>

If a single hit to the object doesn't do at least this much damage, the prop won't take any of the damage it attempted to give.

Pressure Delay (PressureDelay) <float>

Seconds to delay breaking from pressure. Allows creaking/groaning sounds to play.

Health (health) <integer>

How close to breaking the object is.

Maximum Health (max_health) <integer>

Health cannot exceed this amount.

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.

Breakable By (BreakableType) <choices> (New with Left 4 Dead)

only. Who can break this?

• 0: Everyone
• 1: All Infected
• 2: Only Tanks

Base:

Classname (classname) <string>

The classname defines the type of entity. Classnames can be changed using AddOutput, which will influence how the engine deals with the entity in certain circumstances.

Name (targetname) <string>

The name that other entities refer to this entity by.

Global Entity Name (globalname) <string>

Name by which this entity is linked to another entity in a different map. When the player transitions to a new map, entities in the new map with globalnames matching entities in the previous map will have the previous map's state copied over their state.

Parent (parentname) <targetname>

Specifies a movement parent. An entity will maintain its initial offset from its parent. An attachment point can be added to the end of the name, separated by a comma. Every entity can be parented, even point entities. Entities which are parented will be forced to transition to the next map, such as from a trigger_transition. Some entities which aren't intended to be parented may not function correctly. phys_constraint can be used as a workaround to parenting.

Origin (X Y Z) (origin) <coordinates>

The position of this entity's center in the world. Rotating entities typically rotate around their origin.

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.

Flags (spawnflags) <integer>

Toggles features of an entity, its specific number is determined by the combination of flags added.

Response Contexts (ResponseContext) <string>

Pre-defined response system contexts for this entity. Format is key:value,key:value,.... Contexts may be filtered.

Effects (effects) <integer> !FGD

Combination of effect flags to use.

Local Time (ltime) <float> !FGD

The local time of the entity, independent of the global clock. Used mainly for physics calculations.

Next Think (nextthink) <float> !FGD

Amount of time before the entity thinks again.

Hammer ID (hammerid) <integer> !FGD

The entity's Hammer ID. Mainly used by plugins and debugging commands, such as ent_keyvalue. Can be manually assigned with the "hammerid" or "id" keyvalue. Entities spawned at run-time are not assigned any Hammer ID.

Disable for Xbox 360 (disableX360) <boolean> (New with Left 4 Dead 2) !FGD

If Yes, disables this entity on the Xbox 360 version of Source.

Entity Scripts (vscripts) <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 (thinkfunction) <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. Try to avoid expensive operations in this function, as it may cause performance problems.

Lag Compensation (LagCompensate) <boolean> (New with Left 4 Dead 2) !FGD

Set to Yes to lag compensate this entity. Should be used very sparingly!

Is Automatic-Aim Target (is_autoaim_target) <boolean> (New with Counter-Strike: Global Offensive) !FGD

If set to 1, this entity will slow down aiming movement for consoles and joystick controllers when the entity is under the crosshairs.

Inputs

Wake

Wake up this physics object, if it is sleeping.

Sleep

Put this physics object to sleep. It will wake if given the Wake input, or if force is applied to it. Note that physics objects go to sleep automatically after coming to rest for a while, so you don't really need to use this.

EnableMotion

Enable physics motion/collision response.

DisableMotion

Disable physics motion/collision response.

ForceDrop

If this object is being carried by a player, with the physgun or +USE, force it to be dropped.

Breakable (brush):

SetMass <float>

Damaging the entity applies physics forces to it.

Breakable:

Break

Breaks the breakable.

SetHealth <integer>

Sets a new value for the breakable's health. If the breakable's health reaches zero it will break.

AddHealth <integer>

Adds health to the breakable.

RemoveHealth <integer>

Removes health from the breakable.

Base:

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 than Kill.

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.

ClearParent

Removes this entity from the the movement hierarchy, leaving it free to move independently.

AddOutput <string>

Evaluates a keyvalue/output on this entity.
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.

DispatchEffect <string> !FGD

Dispatches a special effect from the entity's origin. Removed and replaced entirely by the particle system since .

DispatchResponse <string> !FGD

Dispatches a response to the entity. See Response and Concept.

AddContext <string>

Adds to the entity's list of response contexts. Format is <key>:<value>.

RemoveContext <string>

Remove a context from this entity's list. The name should match the key of an existing context.

ClearContext <string>

Removes all contexts from this entity's list.

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 , 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.

SetLocalOrigin <coordinates> (New with Alien Swarm) !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.

SetLocalAngles <angles> (New with Alien Swarm) !FGD

Set this entity's angles.

Outputs

OnDamaged

Fired when this entity is damaged.

OnAwakened

Fired when this entity becomes awake (collision/force is applied).

OnMotionEnabled

Fired when motion is enabled due to damage/physcannon/force.

OnPhysGunPickup

Fired when a player picks this object up, either with the physgun or +USE.

OnPhysGunPunt

Fired when a player punts this object with the physgun.

OnPhysGunOnlyPickup

Fired when a player picks this object up WITH THE PHYSGUN. +USE pickups do not fire this output.

OnPhysGunDrop

Fired when a player drops this object.

OnPlayerUse

Fired when the player tries to +USE the physbox. This output will fire only if the Generate output on +USE spawnflag is set.

Breakable (common):

OnBreak

Fired when this object breaks. !activator is whatever breaks the object.

OnHealthChanged <float>

Fired whenever the health of the breakable has increased or decreased. This output automatically puts the new health amount as a decimal percent (e.g. 45% = 0.45) into the parameter box for inputs, if the mapper does not override the parameter with something else.

Base:

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  (Only in the Left 4 Dead series)

This output fires when the entity is killed and removed from the game.

See also

• Collapsing_tower - a prefab that demonstrates some creative usage of func_physboxes.
• Prop Footsteps - a tutorial on the subject, demonstrating essential code for when players walk on entities like this (it's not ignored during footstep sound computation).