Constants Reference — BlackBox Scripter Docs

Booleans

Standard boolean values. LSL uses integer 1/0 for TRUE/FALSE; the transpiler converts these to native TypeScript booleans.

LSL Constant	TypeScript Equivalent
`TRUE`	`true`
`FALSE`	`false`

Null Values

Sentinel values representing 'nothing.' NULL_KEY is the zero UUID used for missing objects or agents, and EOF signals end-of-data when reading notecards.

LSL Constant	TypeScript Equivalent
`NULL_KEY`	`"00000000-0000-0000-0000-000000000000"`
The UUID representing 'no object' or 'no agent' — all zeros (00000000-0000-0000-0000-000000000000).
`EOF`	`""`
Empty string returned by llGetNotecardLine when the end of a notecard is reached.

Vectors & Rotations

Identity and sentinel values for 3D math. ZERO_VECTOR and ZERO_ROTATION are the most common defaults for position and orientation parameters.

LSL Constant	TypeScript Equivalent
`ZERO_VECTOR`	`Vector3.ZERO`
The origin vector <0, 0, 0>, commonly used as a default position or velocity.
`ZERO_ROTATION`	`Quaternion.IDENTITY`
The identity quaternion <0, 0, 0, 1> representing no rotation.
`TOUCH_INVALID_TEXCOORD`	`new Vector3(-1, -1, 0)`
Returned by llDetectedTouchST/UV when the touch position cannot be determined.
`PRIM_ROTATION`	`8`
`TYPE_VECTOR`	`5`
`TYPE_ROTATION`	`6`

Math Constants

Standard mathematical constants for trigonometry and angle conversion. Use DEG_TO_RAD and RAD_TO_DEG to convert between degrees and radians.

LSL Constant	TypeScript Equivalent
`PI`	`Math.PI`
`TWO_PI`	`(Math.PI * 2)`
`PI_BY_TWO`	`(Math.PI / 2)`
`DEG_TO_RAD`	`(Math.PI / 180)`
Multiply a degree value by this constant to convert it to radians.
`RAD_TO_DEG`	`(180 / Math.PI)`
Multiply a radian value by this constant to convert it to degrees.
`SQRT2`	`Math.SQRT2`

Link Targets

Specify which prims in a linked object receive a message or property change. Used with llSetLinkPrimitiveParams, llMessageLinked, and similar functions.

LSL Constant	TypeScript Equivalent
`LINK_SET`	`LINK_SET`
Target all prims in the link set when sending messages or setting properties.
`LINK_ROOT`	`LINK_ROOT`
Target only the root prim (link number 1) of a linked object.
`LINK_THIS`	`LINK_THIS`
Target only the prim containing the running script.
`LINK_ALL_OTHERS`	`LINK_ALL_OTHERS`
Target all prims in the link set except the one running the script.
`LINK_ALL_CHILDREN`	`LINK_ALL_CHILDREN`
Target all child prims (everything except the root) in the link set.

Face / Side

Constants for targeting prim faces. ALL_SIDES applies an operation (color, texture, glow) to every face of a prim at once.

LSL Constant	TypeScript Equivalent
`ALL_SIDES`	`-1`
Apply an operation to every face of a prim (value -1).

Status Flags

Bitmask flags passed to llSetStatus/llGetStatus to control an object's physical behavior — physics, phantom, rotation locks, and edge behavior.

LSL Constant	TypeScript Equivalent
`STATUS_PHYSICS`	`0x01`
Enable physics simulation on the object — gravity, collisions, and applied forces take effect.
`STATUS_ROTATE_X`	`0x02`
Allow the object to rotate around the X axis when physical.
`STATUS_ROTATE_Y`	`0x04`
Allow the object to rotate around the Y axis when physical.
`STATUS_ROTATE_Z`	`0x08`
Allow the object to rotate around the Z axis when physical.
`STATUS_PHANTOM`	`0x10`
Make the object non-solid so other objects and avatars pass through it.
`STATUS_SANDBOX`	`0x20`
Restrict the object to a 10-meter range from its creation point.
`STATUS_BLOCK_GRAB`	`0x40`
Prevent users from grabbing (drag-moving) the prim directly.
`STATUS_DIE_AT_EDGE`	`0x80`
Delete the object if it crosses a region boundary rather than bouncing back.
`STATUS_RETURN_AT_EDGE`	`0x100`
Return the object to its owner if it crosses a region boundary.
`STATUS_CAST_SHADOWS`	`0x200`
Enable shadow casting for this object (not supported on all viewers).
`STATUS_BLOCK_GRAB_OBJECT`	`0x400`
Prevent grab-dragging on the entire link set, not just the individual prim.

Agent Types

Filter flags for llSensor and llSensorRepeat. Combine with bitwise OR to detect avatars (AGENT), moving objects (ACTIVE), static objects (PASSIVE), or scripted objects (SCRIPTED).

LSL Constant	TypeScript Equivalent
`AGENT`	`1`
Sensor filter flag matching avatars (same as AGENT_BY_LEGACY_NAME).
`ACTIVE`	`2`
Sensor filter matching moving or physical objects.
`PASSIVE`	`4`
Sensor filter matching non-moving, non-scripted objects.
`SCRIPTED`	`8`
Sensor filter matching objects that contain at least one running script.

Other

LSL Constant	TypeScript Equivalent
`AGENT_BY_LEGACY_NAME`	`1`
Sensor filter matching avatars by their legacy (display) name.
`AGENT_BY_USERNAME`	`0x10`
Sensor filter matching avatars by their username rather than display name.

Permission Flags

Bitmask values requested via llRequestPermissions. Each flag grants a specific capability such as animating the avatar, taking controls, or debiting money.

LSL Constant	TypeScript Equivalent
`PERMISSION_DEBIT`	`0x02`
Permission to debit L$ from the object owner's account via llGiveMoney.
`PERMISSION_TAKE_CONTROLS`	`0x04`
Permission to capture the avatar's movement and mouse inputs via llTakeControls.
`PERMISSION_TRIGGER_ANIMATION`	`0x10`
Permission to play or stop animations on the avatar via llStartAnimation/llStopAnimation.
`PERMISSION_ATTACH`	`0x20`
Permission to attach or detach the object to/from the avatar.
`PERMISSION_CHANGE_LINKS`	`0x80`
Permission to link or unlink prims via llCreateLink/llBreakLink.
`PERMISSION_TRACK_CAMERA`	`0x400`
Permission to read the avatar's camera position and rotation.
`PERMISSION_CONTROL_CAMERA`	`0x800`
Permission to set the avatar's camera focus, position, and parameters.
`PERMISSION_TELEPORT`	`0x1000`
Permission to teleport the avatar to another location via llTeleportAgent.
`PERMISSION_OVERRIDE_ANIMATIONS`	`0x8000`
Permission to override the avatar's default movement animations (walk, run, fly, etc.).

Changed Flags

Bitmask values passed to the changed() event handler indicating what aspect of the object or environment changed.

LSL Constant	TypeScript Equivalent
`CHANGED_INVENTORY`	`0x01`
Fired when an item is added to or removed from the object's inventory.
`CHANGED_COLOR`	`0x02`
Fired when the object's color or alpha is changed.
`CHANGED_SHAPE`	`0x04`
Fired when the prim's shape parameters are modified.
`CHANGED_SCALE`	`0x08`
Fired when the object is resized.
`CHANGED_TEXTURE`	`0x10`
Fired when a texture, bump map, or shiny setting is changed on any face.
`CHANGED_LINK`	`0x20`
Fired when the object is linked to or unlinked from another object.
`CHANGED_ALLOWED_DROP`	`0x40`
Fired when a user drops an inventory item into the object (requires allow_inventory_drop).
`CHANGED_OWNER`	`0x80`
Fired when the object changes ownership (sale, transfer, rez by new owner).
`CHANGED_REGION`	`0x100`
Fired when the object crosses into a different region.
`CHANGED_TELEPORT`	`0x200`
Fired when the avatar wearing the object teleports to a new location.
`CHANGED_REGION_START`	`0x400`
Fired when the region restarts and the object persists through the restart.
`CHANGED_MEDIA`	`0x800`
Fired when media-on-a-prim settings are changed on the object.

Inventory Types

Integer type codes identifying items in an object's inventory. Used with llGetInventoryType, llGetInventoryName, and inventory iteration loops.

LSL Constant	TypeScript Equivalent
`INVENTORY_NONE`	`-1`
Returned when the item does not exist in inventory (value -1).
`INVENTORY_ALL`	`-1`
Wildcard matching all inventory types when iterating (value -1).
`INVENTORY_TEXTURE`	`0`
`INVENTORY_SOUND`	`1`
`INVENTORY_LANDMARK`	`3`
`INVENTORY_CLOTHING`	`5`
`INVENTORY_OBJECT`	`6`
`INVENTORY_NOTECARD`	`7`
`INVENTORY_SCRIPT`	`10`
`INVENTORY_BODYPART`	`13`
`INVENTORY_ANIMATION`	`20`
`INVENTORY_GESTURE`	`21`
`INVENTORY_SETTING`	`56`

Attach Points

Numeric IDs for avatar attachment slots — body joints, HUD positions, and accessories. Used with llAttachToAvatar and llDetectedLinkNumber.

LSL Constant	TypeScript Equivalent
`ATTACH_CHEST`	`1`
`ATTACH_HEAD`	`2`
`ATTACH_LSHOULDER`	`3`
`ATTACH_RSHOULDER`	`4`
`ATTACH_LHAND`	`5`
`ATTACH_RHAND`	`6`
`ATTACH_LFOOT`	`7`
`ATTACH_RFOOT`	`8`
`ATTACH_BACK`	`9`
`ATTACH_PELVIS`	`10`
`ATTACH_MOUTH`	`11`
`ATTACH_CHIN`	`12`
`ATTACH_LEAR`	`13`
`ATTACH_REAR`	`14`
`ATTACH_LEYE`	`15`
`ATTACH_REYE`	`16`
`ATTACH_NOSE`	`17`
`ATTACH_RUARM`	`18`
`ATTACH_RLARM`	`19`
`ATTACH_LUARM`	`20`
`ATTACH_LLARM`	`21`
`ATTACH_RHIP`	`22`
`ATTACH_RULEG`	`23`
`ATTACH_RLLEG`	`24`
`ATTACH_LHIP`	`25`
`ATTACH_LULEG`	`26`
`ATTACH_LLLEG`	`27`
`ATTACH_BELLY`	`28`
`ATTACH_LEFT_PEC`	`29`
`ATTACH_RIGHT_PEC`	`30`
`ATTACH_HUD_CENTER_2`	`31`
HUD attachment point at screen center (layer 2, renders behind CENTER_1).
`ATTACH_HUD_TOP_RIGHT`	`32`
`ATTACH_HUD_TOP_CENTER`	`33`
`ATTACH_HUD_TOP_LEFT`	`34`
`ATTACH_HUD_CENTER_1`	`35`
HUD attachment point at screen center (layer 1, renders in front of CENTER_2).
`ATTACH_HUD_BOTTOM_LEFT`	`36`
`ATTACH_HUD_BOTTOM`	`37`
`ATTACH_HUD_BOTTOM_RIGHT`	`38`
`ATTACH_NECK`	`39`
`ATTACH_AVATAR_CENTER`	`40`
Attachment point at the avatar's geometric center (root bone).

Channels

Predefined chat channel numbers. PUBLIC_CHANNEL (0) is visible to all nearby avatars; DEBUG_CHANNEL is the script error/warning channel.

LSL Constant	TypeScript Equivalent
`PUBLIC_CHANNEL`	`0`
Channel 0 — messages are visible to all avatars within chat range.
`DEBUG_CHANNEL`	`0x7FFFFFFF`
Channel 2147483647 (0x7FFFFFFF) — messages appear as script warnings/errors in the viewer.

Click Actions

Define what happens when a user clicks an object — touch, sit, buy, pay, open, play media. Set via llSetClickAction.

LSL Constant	TypeScript Equivalent
`CLICK_ACTION_NONE`	`0`
Default click behavior (same as touch — value 0).
`CLICK_ACTION_TOUCH`	`0`
`CLICK_ACTION_SIT`	`1`
Clicking the object triggers a sit action.
`CLICK_ACTION_BUY`	`2`
Clicking the object opens the buy dialog.
`CLICK_ACTION_PAY`	`3`
Clicking the object opens the pay dialog.
`CLICK_ACTION_OPEN`	`4`
Clicking the object opens its contents (inventory).
`CLICK_ACTION_PLAY`	`5`
Clicking the object plays its parcel media.
`CLICK_ACTION_OPEN_MEDIA`	`6`
Clicking the object opens its media-on-a-prim content.

Texture Animation

Bitmask flags for llSetTextureAnim controlling how a texture animates — scrolling, rotating, scaling, ping-pong, or smooth interpolation.

LSL Constant	TypeScript Equivalent
`ANIM_ON`	`0x01`
Start texture animation (must be included in the flags bitmask to activate).
`LOOP`	`0x02`
Loop the texture animation continuously.
`REVERSE`	`0x04`
Play the texture animation in reverse order.
`PING_PONG`	`0x08`
Alternate between forward and reverse playback.
`SMOOTH`	`0x10`
Smoothly interpolate between animation frames instead of snapping.
`ROTATE`	`0x20`
Rotate the texture around its center instead of scrolling frames.
`SCALE`	`0x40`
Scale (stretch) the texture instead of scrolling frames.

Particle System

Parameter keys and flag masks for llParticleSystem. Keys select which property to set (color, scale, speed, pattern); flags control particle behavior (emissive, wind, bounce).

LSL Constant	TypeScript Equivalent
`PSYS_PART_FLAGS`	`0`
Particle rule key: bitmask controlling particle behavior (emissive, bounce, follow, ribbon, etc.).
`PSYS_PART_START_COLOR`	`1`
Particle rule key: starting RGB color of each particle.
`PSYS_PART_START_ALPHA`	`2`
Particle rule key: starting opacity (0.0 transparent to 1.0 opaque).
`PSYS_PART_END_COLOR`	`3`
Particle rule key: ending RGB color particles fade toward.
`PSYS_PART_END_ALPHA`	`4`
Particle rule key: ending opacity particles fade toward.
`PSYS_PART_START_SCALE`	`5`
Particle rule key: starting size as a 2D vector <width, height, 0>.
`PSYS_PART_END_SCALE`	`6`
Particle rule key: ending size particles scale toward.
`PSYS_PART_MAX_AGE`	`7`
Particle rule key: lifetime in seconds for each individual particle.
`PSYS_SRC_ACCEL`	`8`
Particle rule key: constant acceleration vector applied to particles (e.g., simulating wind or gravity).
`PSYS_SRC_PATTERN`	`9`
Particle rule key: emission pattern (drop, explode, angle, cone).
`PSYS_SRC_TEXTURE`	`12`
Particle rule key: UUID or inventory name of the particle texture.
`PSYS_SRC_BURST_RATE`	`13`
Particle rule key: seconds between emission bursts (lower = more particles).
`PSYS_SRC_BURST_PART_COUNT`	`15`
Particle rule key: number of particles emitted per burst.
`PSYS_SRC_BURST_RADIUS`	`16`
Particle rule key: radius from the emitter where particles first appear.
`PSYS_SRC_BURST_SPEED_MIN`	`17`
Particle rule key: minimum initial speed of emitted particles.
`PSYS_SRC_BURST_SPEED_MAX`	`18`
Particle rule key: maximum initial speed of emitted particles.
`PSYS_SRC_MAX_AGE`	`19`
Particle rule key: total lifetime of the emitter in seconds (0 = infinite).
`PSYS_SRC_TARGET_KEY`	`20`
Particle rule key: UUID of the object particles should home toward.
`PSYS_SRC_OMEGA`	`21`
Particle rule key: angular velocity of the emitter orientation over time.
`PSYS_SRC_ANGLE_BEGIN`	`22`
Particle rule key: starting angle (radians) for cone/angle emission patterns.
`PSYS_SRC_ANGLE_END`	`23`
Particle rule key: ending angle (radians) for cone/angle emission patterns.
`PSYS_SRC_PATTERN_DROP`	`1`
Particles drop from the emitter with no initial velocity.
`PSYS_SRC_PATTERN_EXPLODE`	`2`
Particles burst outward in all directions from the emitter.
`PSYS_SRC_PATTERN_ANGLE`	`4`
Particles emit in a flat 2D arc defined by ANGLE_BEGIN and ANGLE_END.
`PSYS_SRC_PATTERN_ANGLE_CONE`	`8`
Particles emit in a 3D cone shape defined by ANGLE_BEGIN and ANGLE_END.
`PSYS_SRC_PATTERN_ANGLE_CONE_EMPTY`	`16`
Particles emit in a hollow cone (ring-shaped emission pattern).
`PSYS_PART_INTERP_COLOR_MASK`	`0x001`
Interpolate particle color from start to end over the particle's lifetime.
`PSYS_PART_INTERP_SCALE_MASK`	`0x002`
Interpolate particle size from start to end over the particle's lifetime.
`PSYS_PART_BOUNCE_MASK`	`0x004`
Particles bounce off the Z-plane of the emitter instead of passing through.
`PSYS_PART_WIND_MASK`	`0x008`
Particles are affected by the region's wind.
`PSYS_PART_FOLLOW_SRC_MASK`	`0x010`
Particles follow the emitter as it moves.
`PSYS_PART_FOLLOW_VELOCITY_MASK`	`0x020`
Particles orient themselves along their velocity direction.
`PSYS_PART_TARGET_POS_MASK`	`0x040`
Particles home toward the target specified by PSYS_SRC_TARGET_KEY.
`PSYS_PART_TARGET_LINEAR_MASK`	`0x080`
Particles move in a straight line toward the target instead of arcing.
`PSYS_PART_EMISSIVE_MASK`	`0x100`
Particles are self-lit (fullbright) and unaffected by scene lighting.
`PSYS_PART_RIBBON_MASK`	`0x400`
Particles are rendered as connected ribbons rather than individual quads.

Prim Parameters

Parameter keys for llSetPrimitiveParams / llGetPrimitiveParams. Each key selects a property (type, material, texture, color, glow, light, flexi) and expects specific trailing arguments.

LSL Constant	TypeScript Equivalent
`PRIM_TYPE`	`9`
Prim param key: the shape type followed by type-specific parameters.
`PRIM_MATERIAL`	`2`
Prim param key: material type affecting collision sounds and friction.
`PRIM_PHYSICS`	`3`
Prim param key: whether the prim is physical (TRUE/FALSE).
`PRIM_TEMP_ON_REZ`	`4`
Prim param key: temporary-on-rez flag (object auto-deletes after ~1 minute).
`PRIM_PHANTOM`	`5`
Prim param key: whether the prim is phantom (non-solid).
`PRIM_POSITION`	`6`
`PRIM_SIZE`	`7`
`PRIM_TEXTURE`	`17`
Prim param key: set texture, repeats, offset, and rotation on a face.
`PRIM_COLOR`	`18`
`PRIM_BUMP_SHINY`	`19`
Prim param key: set bump mapping and shininess on a face.
`PRIM_FULLBRIGHT`	`20`
Prim param key: make a face ignore scene lighting (self-illuminated).
`PRIM_FLEXIBLE`	`21`
Prim param key: enable flexi (soft-body wind effect) with stiffness, gravity, and wind parameters.
`PRIM_TEXGEN`	`22`
Prim param key: texture coordinate generation mode (default or planar mapping).
`PRIM_POINT_LIGHT`	`23`
Prim param key: make the prim emit light with configurable color, intensity, radius, and falloff.
`PRIM_GLOW`	`25`
Prim param key: set the glow intensity on a face (0.0 to 1.0).
`PRIM_TEXT`	`26`
Prim param key: set floating text above the prim with text, color, and alpha.
`PRIM_NAME`	`27`
`PRIM_DESC`	`28`
`PRIM_LINK_TARGET`	`34`
Prim param key: switch the target link number within a single llSetPrimitiveParams call.
`PRIM_TYPE_BOX`	`0`
`PRIM_TYPE_CYLINDER`	`1`
`PRIM_TYPE_PRISM`	`2`
`PRIM_TYPE_SPHERE`	`3`
`PRIM_TYPE_TORUS`	`4`
`PRIM_TYPE_TUBE`	`5`
`PRIM_TYPE_RING`	`6`
`PRIM_TYPE_SCULPT`	`7`
Sculpted prim shaped by a sculpt-map texture.
`PRIM_PHYSICS_SHAPE_PRIM`	`0`
Full-detail physics shape matching the visual prim geometry.
`PRIM_PHYSICS_SHAPE_NONE`	`1`
No physics shape — the prim has no collision surface.
`PRIM_PHYSICS_SHAPE_CONVEX`	`2`
Convex hull physics shape — faster collision detection but simplified geometry.
`PRIM_MATERIAL_STONE`	`0`
`PRIM_MATERIAL_METAL`	`1`
`PRIM_MATERIAL_GLASS`	`2`
`PRIM_MATERIAL_WOOD`	`3`
`PRIM_MATERIAL_FLESH`	`4`
`PRIM_MATERIAL_PLASTIC`	`5`
`PRIM_MATERIAL_RUBBER`	`6`
`PRIM_MATERIAL_LIGHT`	`7`
Light material type — produces no collision sounds.

Media on a Prim

Constants for llSetPrimMediaParams / llGetPrimMediaParams (MOAP). Configure URLs, auto-play, dimensions, permissions, and controls for web content rendered on a prim face.

LSL Constant	TypeScript Equivalent
`PRIM_MEDIA_ALT_IMAGE_ENABLE`	`0`
Enable showing an alternate (placeholder) image when media is not playing.
`PRIM_MEDIA_ALT_IMAGE`	`1`
`PRIM_MEDIA_CURRENT_URL`	`2`
`PRIM_MEDIA_HOME_URL`	`3`
`PRIM_MEDIA_AUTO_PLAY`	`4`
`PRIM_MEDIA_AUTO_LOOP`	`5`
`PRIM_MEDIA_AUTO_SCALE`	`6`
`PRIM_MEDIA_AUTO_ZOOM`	`7`
`PRIM_MEDIA_FIRST_CLICK_INTERACT`	`8`
Allow interaction with the media surface on first click instead of requiring a second click.
`PRIM_MEDIA_WIDTH_PIXELS`	`9`
`PRIM_MEDIA_HEIGHT_PIXELS`	`10`
`PRIM_MEDIA_WHITELIST_ENABLE`	`11`
Restrict media navigation to URLs matching the whitelist.
`PRIM_MEDIA_WHITELIST`	`12`
`PRIM_MEDIA_PERMS_INTERACT`	`13`
Bitmask controlling who can interact with the media surface.
`PRIM_MEDIA_PERMS_CONTROL`	`14`
Bitmask controlling who can see and use the media control bar.
`PRIM_MEDIA_CONTROLS`	`15`
`PRIM_MEDIA_CONTROLS_STANDARD`	`0`
`PRIM_MEDIA_CONTROLS_MINI`	`1`
`PRIM_MEDIA_PERM_NONE`	`0x0`
No permissions — nobody can interact with or control the media.
`PRIM_MEDIA_PERM_OWNER`	`0x1`
Only the object owner has permission.
`PRIM_MEDIA_PERM_GROUP`	`0x2`
Group members have permission.
`PRIM_MEDIA_PERM_ANYONE`	`0x4`
Anyone has permission.

Control Flags

Bitmask flags received in the control() event after llTakeControls. Each flag corresponds to a movement or mouse input from the avatar.

LSL Constant	TypeScript Equivalent
`CONTROL_FWD`	`0x01`
Avatar is pressing the forward movement key (W or up arrow).
`CONTROL_BACK`	`0x02`
Avatar is pressing the backward movement key (S or down arrow).
`CONTROL_LEFT`	`0x04`
Avatar is pressing the strafe-left key.
`CONTROL_RIGHT`	`0x08`
Avatar is pressing the strafe-right key.
`CONTROL_ROT_LEFT`	`0x100`
Avatar is pressing the rotate-left key.
`CONTROL_ROT_RIGHT`	`0x200`
Avatar is pressing the rotate-right key.
`CONTROL_UP`	`0x10`
Avatar is pressing the jump/fly-up key.
`CONTROL_DOWN`	`0x20`
Avatar is pressing the crouch/fly-down key.
`CONTROL_LBUTTON`	`0x10000000`
Avatar is clicking the left mouse button.
`CONTROL_ML_LBUTTON`	`0x40000000`
Avatar is clicking the left mouse button while in mouselook mode.

HTTP

Parameter keys for llHTTPRequest options list. Set the HTTP method, MIME type, body length limit, certificate verification, custom headers, and caching.

LSL Constant	TypeScript Equivalent
`HTTP_METHOD`	`0`
HTTP request option: the method string (GET, POST, PUT, DELETE).
`HTTP_MIMETYPE`	`1`
HTTP request option: the Content-Type MIME string.
`HTTP_BODY_MAXLENGTH`	`2`
HTTP request option: maximum response body length in bytes.
`HTTP_VERIFY_CERT`	`3`
HTTP request option: whether to verify the server's SSL certificate.
`HTTP_BODY_TRUNCATED`	`0`
HTTP response metadata key indicating the body was truncated to the max length.
`HTTP_VERBOSE_THROTTLE`	`4`
`HTTP_CUSTOM_HEADER`	`5`
HTTP request option: set a custom header (name-value pair).
`HTTP_PRAGMA_NO_CACHE`	`6`
HTTP request option: disable caching for this request.

Pay / Money

Constants for llSetPayPrice controlling the pay dialog buttons. PAY_HIDE removes a button; PAY_DEFAULT shows the system default amount.

LSL Constant	TypeScript Equivalent
`PAY_HIDE`	`-1`
Hide this pay-dialog button entirely (value -1).
`PAY_DEFAULT`	`-2`
Show the system default amount on this pay-dialog button (value -2).

String Trim

Flags for llStringTrim specifying which end(s) of a string to trim. Combine HEAD and TAIL with bitwise OR, or use STRING_TRIM for both.

LSL Constant	TypeScript Equivalent
`STRING_TRIM_HEAD`	`0x01`
Trim whitespace from the beginning of the string only.
`STRING_TRIM_TAIL`	`0x02`
Trim whitespace from the end of the string only.
`STRING_TRIM`	`0x03`
Trim whitespace from both ends of the string (HEAD \| TAIL).

JSON

Type tags and control values for llJsonGetValue, llJsonSetValue, and llJsonValueType. Used to navigate, query, and modify JSON data stored as strings.

LSL Constant	TypeScript Equivalent
`JSON_VALUE_TYPE_UNDEF`	`-1`
Value type returned when a JSON path does not exist.
`JSON_OBJECT`	`-2`
`JSON_ARRAY`	`-3`
`JSON_NUMBER`	`-4`
`JSON_STRING`	`-5`
`JSON_NULL`	`-6`
`JSON_TRUE`	`-7`
`JSON_FALSE`	`-8`
`JSON_DELETE`	`-9`
Special value passed to llJsonSetValue to delete a key from a JSON object.
`JSON_INVALID`	`⊗`
Returned by JSON functions when the input is not valid JSON.
`JSON_APPEND`	`-1`
Special index passed to llJsonSetValue to append to a JSON array (value -1).

Object Details

Parameter keys for llGetObjectDetails. Each constant selects a specific property (name, position, owner, physics cost, etc.) to retrieve about any object by key.

LSL Constant	TypeScript Equivalent
`OBJECT_NAME`	`1`
`OBJECT_DESC`	`2`
`OBJECT_POS`	`3`
`OBJECT_ROT`	`4`
`OBJECT_VELOCITY`	`5`
`OBJECT_OWNER`	`6`
`OBJECT_GROUP`	`7`
`OBJECT_CREATOR`	`8`
`OBJECT_RUNNING_SCRIPT_COUNT`	`9`
`OBJECT_TOTAL_SCRIPT_COUNT`	`10`
`OBJECT_SCRIPT_MEMORY`	`11`
`OBJECT_SCRIPT_TIME`	`12`
`OBJECT_PRIM_EQUIVALENCE`	`13`
Returns the land-impact (prim equivalence) cost of the object.
`OBJECT_SERVER_COST`	`14`
Returns the server-side resource cost of the object.
`OBJECT_STREAMING_COST`	`15`
Returns the download/streaming weight of the object's mesh data.
`OBJECT_PHYSICS_COST`	`16`
Returns the physics simulation cost of the object.
`OBJECT_CHARACTER_TIME`	`17`
Returns the pathfinding character computation time for the object.
`OBJECT_ROOT`	`18`
Returns the UUID of the root prim in the object's link set.
`OBJECT_ATTACHED_POINT`	`19`
Returns the attachment point number if the object is worn, or 0 if not.
`OBJECT_PATHFINDING_TYPE`	`20`
Returns the pathfinding classification (static, movable, character, none).
`OBJECT_PHYSICS`	`21`
`OBJECT_PHANTOM`	`22`
`OBJECT_TEMP_ON_REZ`	`23`
`OBJECT_RENDER_WEIGHT`	`24`
Returns the rendering cost (ARC/draw weight) of an avatar.
`OBJECT_HOVER_HEIGHT`	`25`
`OBJECT_BODY_SHAPE_TYPE`	`26`
Returns 0.0 for male shape or 1.0 for female shape on an avatar.
`OBJECT_LAST_OWNER_ID`	`27`
Returns the UUID of the previous owner before the current one.
`OBJECT_CLICK_ACTION`	`28`
`OBJECT_OMEGA`	`29`
`OBJECT_PRIM_COUNT`	`30`
`OBJECT_TOTAL_INVENTORY_COUNT`	`31`
`OBJECT_REZZER_KEY`	`32`
Returns the UUID of the object or avatar that rezzed this object.
`OBJECT_GROUP_TAG`	`33`
`OBJECT_TEMP_ATTACHED`	`34`
Returns TRUE if the object is temporarily attached (llAttachToAvatarTemp).
`OBJECT_ATTACHED_SLOTS_AVAILABLE`	`35`
`OBJECT_CREATION_TIME`	`36`
`OBJECT_SELECT_COUNT`	`37`
`OBJECT_SIT_COUNT`	`38`
`OBJECT_ANIMATED_COUNT`	`39`

Data Types

Type codes returned by llGetListEntryType identifying the data type of a list element — integer, float, string, key, vector, or rotation.

LSL Constant	TypeScript Equivalent
`TYPE_INTEGER`	`1`
`TYPE_FLOAT`	`2`
`TYPE_STRING`	`3`
`TYPE_KEY`	`4`
`TYPE_INVALID`	`0`
Returned by llGetListEntryType for indices that are out of range.

NPC Flags (OSSL)

OpenSimulator-specific flags for osNpcCreate and osNpcMoveTo controlling NPC ownership, movement mode (fly/walk/run), and sensor visibility.

LSL Constant	TypeScript Equivalent
`OS_NPC_CREATOR_OWNED`	`1`
NPC can only be controlled by its creator's scripts.
`OS_NPC_SENSE_AS_AGENT`	`2`
NPC appears as a real avatar to sensors and llDetected functions.
`OS_NPC_NO_FLY`	`3`
Force the NPC to walk even when navigating to a higher elevation.
`OS_NPC_NOT_OWNED`	`4`
Create an unowned NPC that any script can control.
`OS_NPC_RUNNING`	`5`
NPC moves at running speed instead of walking.
`OS_NPC_LAND_AT_TARGET`	`6`
NPC lands (stops flying) upon reaching its movement target.
`OS_NPC_FLY`	`7`
NPC flies to its movement target instead of walking.

Parcel Media

Command constants for llParcelMediaCommandList controlling parcel-level media playback — play, pause, stop, loop, and configuration of URL, type, and size.

LSL Constant	TypeScript Equivalent
`PARCEL_MEDIA_COMMAND_STOP`	`0`
`PARCEL_MEDIA_COMMAND_PAUSE`	`1`
`PARCEL_MEDIA_COMMAND_PLAY`	`2`
`PARCEL_MEDIA_COMMAND_LOOP`	`3`
Loop media playback continuously.
`PARCEL_MEDIA_COMMAND_TEXTURE`	`4`
Set the texture UUID displayed when media is not playing.
`PARCEL_MEDIA_COMMAND_URL`	`5`
Set the media URL for the parcel.
`PARCEL_MEDIA_COMMAND_TIME`	`6`
Seek to a specific time position in the media stream (seconds).
`PARCEL_MEDIA_COMMAND_AGENT`	`7`
Target a specific avatar for the media command instead of all avatars.
`PARCEL_MEDIA_COMMAND_UNLOAD`	`8`
Unload media from the parcel entirely (frees resources).
`PARCEL_MEDIA_COMMAND_AUTO_ALIGN`	`9`
Automatically scale the media to fit the prim face.
`PARCEL_MEDIA_COMMAND_TYPE`	`10`
Set the MIME type of the parcel media (e.g., 'video/mp4').
`PARCEL_MEDIA_COMMAND_SIZE`	`11`
Set the pixel dimensions of the media display surface.
`PARCEL_MEDIA_COMMAND_DESC`	`12`