LlGetStaticPath

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/LSL

GetStaticPath

llGetStaticPath

Summary

Function: list llGetStaticPath( vector start, vector end, float radius, list params );

	Forced Delay
	Energy

Returns a list of position vectors indicating pathfinding waypoints between positions at start and end, for a character of a given radius. The waypoints this function returns are for the 'static' nav mesh, meaning that dynamic objects are ignored.

• vector	start	–	Starting position
• vector	end	–	End position
• float	radius	–	Radius of the character that we're creating a path for, between 0.125m and 5.0m
• list	params	–	Only takes the parameter CHARACTER_TYPE; the options are identical to those used for llCreateCharacter. The default value is CHARACTER_TYPE_NONE

The list also always contains an integer in the last element, which is a status code indicating the outcome of the path query:

• If llGetStaticPath() finds a path, it will return waypoint vectors and will return a status code of 0, for success
• If llGetStaticPath() cannot find a path for some reason, it only returns the status code, indicating the sort of error. The error codes correspond to the constants in path_update (e.g. PU_FAILURE_INVALID_START is returned if the start vector is not near the nav mesh)

Return constants

Constants	Value	Description
PU_SLOWDOWN_DISTANCE_REACHED	0x00	Character is near current goal.
PU_GOAL_REACHED	0x01	Character has reached the goal and will stop or choose a new goal (if wandering).
PU_FAILURE_INVALID_START	0x02	Character cannot navigate from the current location - e.g., the character is off the navmesh or too high above it.
PU_FAILURE_INVALID_GOAL	0x03	Goal is not on the navmesh and cannot be reached.
PU_FAILURE_UNREACHABLE	0x04	Goal is no longer reachable for some reason - e.g., an obstacle blocks the path.
PU_FAILURE_TARGET_GONE	0x05	Target (for llPursue or llEvade) can no longer be tracked - e.g., it left the region or is an avatar that is now more than about 30m outside the region.
PU_FAILURE_NO_VALID_DESTINATION	0x06	There's no good place for the character to go - e.g., it is patrolling and all the patrol points are now unreachable.
PU_EVADE_HIDDEN	0x07	Triggered when an llEvade character thinks it has hidden from its pursuer.
PU_EVADE_SPOTTED	0x08	Triggered when an llEvade character switches from hiding to running
PU_FAILURE_NO_NAVMESH	0x09	This is a fatal error reported to a character when there is no navmesh for the region. This usually indicates a server failure and users should file a bug report and include the time and region in which they received this message.
PU_FAILURE_DYNAMIC_PATHFINDING_DISABLED	0x0A	Triggered when a character enters a region with dynamic pathfinding disabled. Dynamic pathfinding can be toggled by estate managers via the 'dynamic_pathfinding' option in the Region Debug Console.
PU_FAILURE_PARCEL_UNREACHABLE	0x0B	Triggered when a character failed to enter a parcel because it is not allowed to enter, e.g. because the parcel is already full or because object entry was disabled after the navmesh was baked.
PU_FAILURE_OTHER	0xF4240	Other failure.

Character type options

Option		Default	Range / Values	Description
CHARACTER_DESIRED_SPEED	1	6	[0.2, 40.0]	Speed of pursuit in meters per second.
CHARACTER_RADIUS	2		[0.125, 5.0]	Set collision capsule radius.
CHARACTER_LENGTH	3		(0.0, 10.0]	Set collision capsule length If the value is less than twice the radius plus 0.1m, it will be set to twice the radius plus 0.1m.
CHARACTER_ORIENTATION	4	VERTICAL	VERTICAL, HORIZONTAL	Set the character orientation.
TRAVERSAL_TYPE	7	TRAVERSAL_TYPE_SLOW	TRAVERSAL_TYPE_FAST, TRAVERSAL_TYPE_SLOW, TRAVERSAL_TYPE_NONE	Controls the speed at which characters moves on terrain that is less than 100% walkable will move faster (e.g., a cat crossing a street) or slower (e.g., a car driving in a swamp). To use _FAST or _SLOW, you must specify a CHARACTER_TYPE.
CHARACTER_TYPE	6	CHARACTER_TYPE_NONE	CHARACTER_TYPE_A, CHARACTER_TYPE_B, CHARACTER_TYPE_C, CHARACTER_TYPE_D, CHARACTER_TYPE_NONE	Specifies which walkability coefficient will be used by this character.
CHARACTER_AVOIDANCE_MODE	5	AVOID_CHARACTERS | AVOID_DYNAMIC_OBSTACLES	Combinable Flags: AVOID_CHARACTERS, AVOID_DYNAMIC_OBSTACLES, AVOID_NONE	Allows you to specify that a character should not try to avoid other characters, should not try to avoid dynamic obstacles (relatively fast moving objects and avatars), or both. This is framed in the positive sense ([CHARACTER_AVOIDANCE_MODE, AVOID_CHARACTERS] would create a character that avoided other characters but not agents or moving vehicles). Setting this parameter to AVOID_NONE causes the character to not avoid either category.
CHARACTER_MAX_ACCEL	8	20	[0.5, 40.0]	The character's maximum acceleration rate.
CHARACTER_MAX_DECEL	9	30	[0.5, 60.0]	The character's maximum deceleration rate.
CHARACTER_DESIRED_TURN_SPEED	12	6	[0.02, 40.0]	The character's maximum speed while turning--note that this is only loosely enforced (i.e., a character may turn at higher speeds under certain conditions)
CHARACTER_MAX_TURN_RADIUS	10	1.25	[0.1, 10.0]	The character's turn radius when traveling at CHARACTER_DESIRED_TURN_SPEED
CHARACTER_MAX_SPEED	13	20	[1, 40.0]	The character's maximum speed. Affects speed when avoiding dynamic obstacles and when traversing low-walkability objects in TRAVERSAL_TYPE_FAST mode.
CHARACTER_ACCOUNT_FOR_SKIPPED_FRAMES	14	TRUE	TRUE or FALSE	TRUE matches pre-existing behavior. If set to FALSE, character will not attempt to catch up on lost time when pathfinding performance is low, potentially providing more reliable movement (albeit while potentially appearing to be more stuttery).
CHARACTER_STAY_WITHIN_PARCEL	15	Depends*	TRUE or FALSE	FALSE matches traditional behavior. If set to TRUE, treat the parcel boundaries as one-way obstacles (will re-enter but can't leave on it's own).

Examples

See Also

Events

• path_update

Functions

• llCreateCharacter

Deep Notes

Footnotes

1. ^ The ranges in this article are written in Interval Notation.

Signature
function list llGetStaticPath( vector start, vector end, float radius, list params );