Constants are pre-defined values that do not change–they’re constant: TRUE will always equal 1. However, this does not mean that values should be used instead; while there’s no technical reason not to, constants exist to simplify your code and make it easier to understand. It’s good coding practice to use them. This page is for general constants; function-specific ones should be documented on the functions page. You can find an almost complete list of constants & values on LexFile.

float

PI 3.1415926535897932384626433832795 (pi)
TWO_PI 6.283185307179586476925286766559 (pi * 2)
PI_BY_TWO 1.5707963267948966192313216916398 (pi / 2)
DEG_TO_RAD To convert from degrees to radians (multiply, example: radian = 90 * DEG_TO_RAD;)
RAD_TO_DEG To convert to radians from degrees (multiply, example: degree = PI_BY_TWO * RAD_TO_DEG;)
SQRT2 1.4142135623730950488016887242097 (square root of 2)

 integer

TRUE 1, an integer constant for boolean operations.
FALSE 0, an integer constant for boolean operations.
DEBUG_CHANNEL 2147483647, a special chat channel used to print to the Script Error Window.
PUBLIC_CHANNEL 0, chat channel that broadcasts to all nearby users.
OBJECT_UNKNOWN_DETAIL -1, an integer returned when an invalid object parameter type is passed to llGetObjectDetails.
INVENTORY_NONE -1, an integer returned by llGetInventoryType when no item is found.

 string

NULL_KEY Indicates an empty key: “00000000-0000-0000-0000-000000000000”. This constant is typed as a string not as a key. EOF, “\n\n\n”, Indicates the last line (or a line past this) of a notecard was read (returned in the dataserver event), or that the notecard contained embedded objects.  

Substring Replaced With
\t four spaces
\n new line
\” double quote
\\ backslash

rotation

ZERO_ROTATION <0.0, 0.0, 0.0, 1.0> (Note that ZERO_ROTATION is not <0.0, 0.0, 0.0, 0.0>! This is important.)

vector

ZERO_VECTOR <0.0, 0.0, 0.0>

Credit: LSL Wiki

Additional constants to the LSL functions/events

changed() event

Name Value Description
CHANGED_ANIMATION 16384 the set of animations playing on the avatar to whom this object is attached has been changed.

llRequestSimulatorData() and dataserver() event

Name Value Description
DATA_SIM_RELEASE 128 returns the version of the simulator the script is running in; the string parameter of llRequestSimulatorData is ignored.

llDetectedType() and llSensor()

Name Value Description
OS_NPC 0x01000000 Target is NPC. Use this instead of NPC (Justincc’s blog)

llSetVehicleVectorParam()

Name Value Description
VEHICLE_RANGE_BLOCK 45  

llSetVehicleRotationParam()

Name Value Description
VEHICLE_ROLL_FRAME 46  

llSetVehicleFlags() and llRemoveVehicleFlags()

Name Value Description
VEHICLE_FLAG_NO_X 1024  
VEHICLE_FLAG_NO_Y 2048  
VEHICLE_FLAG_NO_Z 4096  
VEHICLE_FLAG_LOCK_HOVER_HEIGHT 8192  
VEHICLE_FLAG_NO_DEFLECTION 16392  
VEHICLE_FLAG_LOCK_ROTATION 32784  

llListStatistics()

Name Value Description
LIST_STAT_HARMONIC_MEAN 100 returns the harmonic mean of a list of numbers.

llSetCameraParams()

Name Value Description
CAMERA_FOCUS_OFFSET_X 2 adjusts the camera focus x position relative to the target. (float)
CAMERA_FOCUS_OFFSET_Y 3 adjusts the camera focus y position relative to the target. (float)
CAMERA_FOCUS_OFFSET_Z 4 adjusts the camera focus z position relative to the target. (float)
CAMERA_POSITION_X 14 sets camera x position in region coordinates. (float)
CAMERA_POSITION_Y 15 sets camera y position in region coordinates. (float)
CAMERA_POSITION_Z 16 sets camera z position in region coordinates. (float)
CAMERA_FOCUS_X 18 sets camera x focus (target position) in region coordinates. (float)
CAMERA_FOCUS_Y 19 sets camera y focus (target position) in region coordinates. (float)
CAMERA_FOCUS_Z 20 sets camera z focus (target position) in region coordinates. (float)

llSetPrimMediaParams()

Name Value
LSL_STATUS_OK 0
LSL_STATUS_MALFORMED_PARAMS 1000
LSL_STATUS_TYPE_MISMATCH 1001
LSL_STATUS_BOUNDS_ERROR 1002
LSL_STATUS_NOT_FOUND 1003
LSL_STATUS_NOT_SUPPORTED 1004
LSL_STATUS_INTERNAL_ERROR 1999
LSL_STATUS_WHITELIST_FAILED 2001

For the OSSL functions

osGetRegionStats()

Name Value Statistics Bar Label
STATS_TIME_DILATION 0 Time Dilation
STATS_SIM_FPS 1 Sim FPS
STATS_PHYSICS_FPS 2 Physics FPS
STATS_AGENT_UPDATES 3 Agent Updates/Sec
STATS_ROOT_AGENTS 4 Main Agents
STATS_CHILD_AGENTS 5 Child Agents
STATS_TOTAL_PRIMS 6 Objects
STATS_ACTIVE_PRIMS 7 Active Objects
STATS_FRAME_MS 8 Total Frame Time
STATS_NET_MS 9 Net Time
STATS_PHYSICS_MS 10 Physics Time
STATS_IMAGE_MS 11 Images Time
STATS_OTHER_MS 12 (Other Time)
STATS_IN_PACKETS_PER_SECOND 13 Packets In
STATS_OUT_PACKETS_PER_SECOND 14 Packets Out
STATS_UNACKED_BYTES 15 Total Unacked Bytes
STATS_AGENT_MS 16 Agent Time
STATS_PENDING_DOWNLOADS 17 Pending Downloads
STATS_PENDING_UPLOADS 18 Pending Uploads
STATS_ACTIVE_SCRIPTS 19 Active Scripts
STATS_SCRIPT_LPS 20 (Script Line Per Second)

osNpcMoveToTarget()

See function page for descriptions of each constants.

Name Value
OS_NPC_FLY 0
OS_NPC_NO_FLY 1
OS_NPC_LAND_AT_TARGET 2
OS_NPC_RUNNING 4

osNpcSit()

See function page for descriptions of each constants.

Name Value
OS_NPC_SIT_NOW 0

osNpcCreate()

See function page for descriptions of each constants.

Name Value
OS_NPC_CREATOR_OWNED 0x1
OS_NPC_NOT_OWNED 0x2
OS_NPC_SENSE_AS_AGENT 0x4

osSetParcelDetails()

Name Value Description
PARCEL_DETAILS_CLAIMDATE 10 set parcel claim date

osListenRegex()

Name Value Description
OS_LISTEN_REGEX_NAME 0x1 process name parameter as regex
OS_LISTEN_REGEX_MESSAGE 0x2 process message parameter as regex

osMessageAttachments()

See function page for descriptions of each constants.

Name Value Description
OS_ATTACH_MSG_ALL -65535 send the message to attachments on every point
OS_ATTACH_MSG_INVERT_POINTS 1 invert how the attachment points list should be treated
OS_ATTACH_MSG_OBJECT_CREATOR 2 send only to those have the same CreatorID with host object CreatorID
OS_ATTACH_MSG_SCRIPT_CREATOR 4 send only to those have the same CreatorID with sender script CreatorID

lsGetWindlightScene() & lsSetWindlightScene() & lsSetWindlightSceneTargeted()

see LightShare Parameters for each description

Name Value
WL_WATER_COLOR 0
WL_WATER_FOG_DENSITY_EXPONENT 1
WL_UNDERWATER_FOG_MODIFIER 2
WL_REFLECTION_WAVELET_SCALE 3
WL_FRESNEL_SCALE 4
WL_FRESNEL_OFFSET 5
WL_REFRACT_SCALE_ABOVE 6
WL_REFRACT_SCALE_BELOW 7
WL_BLUR_MULTIPLIER 8
WL_BIG_WAVE_DIRECTION 9
WL_LITTLE_WAVE_DIRECTION 10
WL_NORMAL_MAP_TEXTURE 11
WL_HORIZON 12
WL_HAZE_HORIZON 13
WL_BLUE_DENSITY 14
WL_HAZE_DENSITY 15
WL_DENSITY_MULTIPLIER 16
WL_DISTANCE_MULTIPLIER 17
WL_MAX_ALTITUDE 18
WL_SUN_MOON_COLOR 19
WL_AMBIENT 20
WL_EAST_ANGLE 21
WL_SUN_GLOW_FOCUS 22
WL_SUN_GLOW_SIZE 23
WL_SCENE_GAMMA 24
WL_STAR_BRIGHTNESS 25
WL_CLOUD_COLOR 26
WL_CLOUD_XY_DENSITY 27
WL_CLOUD_COVERAGE 28
WL_CLOUD_SCALE 29
WL_CLOUD_DETAIL_XY_DENSITY 30
WL_CLOUD_SCROLL_X 31
WL_CLOUD_SCROLL_Y 32
WL_CLOUD_SCROLL_Y_LOCK 33
WL_CLOUD_SCROLL_X_LOCK 34
WL_DRAW_CLASSIC_CLOUDS 35
WL_SUN_MOON_POSITION 36

 

Credit to: Lslwiki.net (not working), and Opensimulator.org references for this material, with changes made for brevity and clarity.