func_breakable_surf

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Revision as of 17:14, 27 November 2018 by Kidnation (talk | contribs) (Fix the error keyvalue, and added some more info about it and one of it's values.)
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Breakable surf.jpg

func_breakable_surf is a brush entity available in all Source games. It defines a breakable surface, for partially breakable glass/tile/etc. All faces that are not ever visible to the player should use nodraw. Faces that will be broken must have exactly four sides. The material applied to the visible face must be set up to be breakable.

Note.png Note: Despite common misconception, this entity is available and functional in Team Fortress 2, although without sounds.

The following standard textures are meant to work with this entity (using any other may crash the game on startup!):

  • glass/glasswindowbreak070a (but not glass/glasswindowbreak070b!)
  • tile/tilebreak001c (using this will stretch the texture if broken)
  • glass/urban_glass_3 (in all games since Counter-Strike: Global Offensive)

To do: What does a material need in order to work correctly?

Bug.png Bug: Using Tile as the Surface Type in Half-Life 2 will show missing textures and make the whole surface non-solid when damaged.
Bug.png Bug: The break sound will play from both the entity and the origin of the map (0,0,0), if this entity is placed on the boundary of the default visleaf cuts (indicated by blue lines in Hammer 2D view).

Flags

  • 1: Physics damage decals
  • 2: Take damage from held objects
Note.png Note: The 1 and 2 flags listed below (from CBreakable) do not apply to this entity! CBreakableSurface overrides them.

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

Fragility (fragility) <integer>
If the 'Surface Type' is set to Glass, this value sets how fragile the glass pieces are after the surface has been broken.
Surface Type (surfacetype) <choices>
Surface material type
  • 0: Glass
  • 1: Tile
error <choices> !FGD
Set automatically by Hammer to indicate an invalid glass/tile surface, when non-zero the entity will be removed when spawned, and a error message will be thrown in the console. This keyvalue is not included in Valve's FGDs, but is still fully functional.
  • 0: No Error
  • 1: Multiple Textured Faces
Note.png Note: You must use tools/toolsnodraw to no draw the 5 remaining sides, or otherwise this error will be thrown!
  • 2: Non-Square Face

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.png 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.png 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 <Obsolete>
Deprecated. Purpose unknown. Does absolutely nothing inside code.
Shards (shards)  !FGD <Obsolete>
Deprecated. Purpose unknown. Does absolutely nothing inside code.
Lip (lip)  !FGD <Obsolete>
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> (in all games since Left 4 Dead)
Left 4 Dead Left 4 Dead 2 only. Who can break this?
  • 0: Everyone
  • 1: All Infected
  • 2: Only Tanks

Visible Brush:

Minimum Light (_minlight) <float>
Minimum amount of light to hit this brush. 0 is none, 1 is normal, and 2 is doubled.
Damage Filter Name (damagefilter) <targetname>
When this entity receives damage, it will filter by this entity.
Render Mode (rendermode) <choices>
Set a non-standard rendering mode on this entity.



Render FX (renderfx) <choices>
Preset pattern of appearance effects.


To do: 18-21, 25
Render FX / Transparency (0 - 255) (renderamt) <integer>
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.
Shadow Cast Distance (shadowcastdist) <integer> !FGD
Sets how far the entity casts dynamic shadows. 0 means default distance from the shadow_control entity.
Shadows (vrad_brush_cast_shadows) <integer> !FGD
Determines if this entity will cast lightmap shadows.
  • 0: No shadows
  • 1: Cast shadows
Disable Shadows (disableshadows) <boolean>
Prevent the entity from creating cheap render-to-texture shadows. Does not affect shadow mapping.
Disable Receiving Shadows (disablereceiveshadows) <boolean>
Prevent the entity from receiving shadows on itself.
Texture Frame (texframeindex) <integer> !FGD
The frame number for any animated textures on this entity.
Minimum CPU Level (mincpulevel) <choices> (in all games since Left 4 Dead)
A user with a CPU level lower than this will not see this object rendered in-game. It's unclear how the CPU level is decided, but most systems are classified as "high".
Maximum CPU Level (maxcpulevel) <choices> (in all games since Left 4 Dead)
  • 0: Default
  • 1: Low
  • 2: Medium
  • 3: High
Minimum GPU Level (mingpulevel) <choices> (in all games since Left 4 Dead)
Maximum GPU Level (maxgpulevel) <choices> (in all games since Left 4 Dead)
  • 0: Default
  • 1: Very low
  • 2: Low
  • 3: Medium
  • 4: High


Brush:

Minimum Bounding Box Size (mins) <vector> !FGD
Maximum Bounding Box Size (maxs) <vector> !FGD
Starting at the brush's origin, mark a bounding box's corner as this far away. Both are required at the same time so one side of the bounding box isn't empty.
Note.png Note: To translate a brush's size in Hammer to these keys, first divide the size value shown in Hammer by 2. Apply the result to themaxskey, then apply the inverted variant (multiply / divide by -1) for theminskey.
Note.png Note: If collisions is already set, it must be set back to Bounding Box (solid 2).
Collisions (solid) <choices>
Method of collision for this entity.
Model Index (modelindex) <short> !FGD
Given the number index from dumping thecl_precacheinfo modelprecachetable, sets entity model to of the index.
Warning.png Warning: If an entity has animations that will be played, then the set model also must have its own sequences, else the game crashes.

Base:

Name (targetname) <string>
The name that other entities use to refer to this entity.
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.png Tip: Entities transition to the next map with their parents
Tip.png Tip: phys_constraintcan be used as a workaround if parenting fails.
Global Entity Name (globalname) <string>
When the player transitions to a new map, entities in the new map with matching globalnames will have their previous map's states copied over to it.
Origin (X Y Z) (origin) <coordinates>
The position of this entity's center in the world. Rotating entities typically rotate around their origin.
Note.png 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.png Note: This works on brush entities, although Hammer doesn't show the new angles.
Response Contexts (ResponseContext) <string>
Pre-defined response system contexts; Format is [key]:[value],[key]:[value],...and so on.
Tip.png Tip: Can also be filtered for or against!
Classname (classname) <string> !FGD
Determines the characteristics of the entity before it spawns.
Tip.png Tip: Changing classnames using theAddOutputinput can still influence the game's code, like making the classname match one element in the S_PreserveEnts list will make the entity persists 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.
Hammer ID (hammerid) <integer> !FGD
The entity's unique Hammer ID that's auto-generated on map compiles. Mainly used by plugins or debugging commands (like theent_keyvaluecommand). Run-time spawned entities don't have a Hammer ID.
Entity Scripts (vscripts) <scriptlist> (in all games since 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> (in all games since 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> (in all games since Left 4 Dead 2) !FGD
Set to Yes to lag compensate this entity. Should be used very sparingly!
Disable for Xbox 360 (disableX360) <boolean> (in all games since Left 4 Dead 2) !FGD
If this entity should automatically be given the 'Disable' input on the Xbox 360 version of Source.
Is Automatic-Aim Target (is_autoaim_target) <boolean> (in all games since 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

Shatter <vector>
Shatter the window. Input a vector. First two coordinates are the X,Y center of the shattering (as values from 0-1). The third coordinate is the radius of the shatter, in hammer units.

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.

Visible Brush:

Alpha <integer>
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.
EnableShadow
Allows the entity to draw a render target shadow.
DisableShadow
Prevents the entity from drawing a render target shadow.
EnableDraw  (in all games since Portal 2)
Removes EF_NODRAW from the entity.
DisableDraw  (in all games since Portal 2)
Applies EF_NODRAW to the entity. Note that this is different than rendermode 10.
EnableReceivingFlashlight  (in all games since Portal 2)
Makes it so that the entity is lit by env_projectedtextures.
DisableReceivingFlashlight  (in all games since Portal 2)
Prevents the entity from being lit by env_projectedtextures. The shadow made by the texture will still cast.
EnableDrawInFastReflection  (in all games since Portal 2)
Makes the entity be rendered in reflections from water materials using $reflectonlymarkedentities.
DisableDrawInFastReflection  (in all games since Portal 2)
Prevents the entity from rendering in fast reflections.


Base:

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


ClearContext <string>
Removes all contexts from this entity's list.
ClearParent
Removes this entity from the the movement hierarchy, leaving it free to move independently.
FireUser1 to FireUser4
Fires the respectiveOnUseroutputs; 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 thanKillinput.
RemoveContext
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.
Use  !FGD
Same as a player invoking +use; no effect in most cases.
DispatchResponse <string> !FGD
Dispatches a response to the entity. See Response and Concept.
DispatchEffect <string> (removed since Left 4 Dead) !FGD
Dispatches a special effect from the entity's origin; see also List of Client Effects. Replaced by the particle system since Left 4 Dead.
RunScriptFile <script> (in all games since 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> (in all games since 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.png 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 Left 4 Dead 2) !FGD
Execute a VScript function in the scope of the receiving entity.
SetLocalOrigin <coordinates> (in all games since 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> (in all games since Alien Swarm) !FGD
Set this entity's angles.


Outputs

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 Left 4 Dead Left 4 Dead 2)
This output fires when the entity is killed and removed from the game.

See Also