Path update

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/LSL

path_update

Description

Event: path_update( integer type, list reserved ){ ; }

	Event ID
	Delay

Event description goes here.

• integer	type	–	The path event type
• list	reserved	–	Reserved; not currently used.

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.

Caveats

• Note that if wandering, the "stop" (type 0x01) type may never occur as a new goal may be chosen when near (0x00) the previous goal.
• When the character cannot navigate from the current position (type 0x02) llNavigateTo with the FORCE_DIRECT_PATH option may be helpful.

Examples

<lsl> default {

   state_entry()
   {
       llDeleteCharacter(); // Clear any previous character behaviors
       llCreateCharacter([CHARACTER_DESIRED_SPEED, 35.0]);
       
       llWanderWithin(llGetPos(), 10.0, []);
   }
   
   path_update(integer type, list reserved)
   {
       if (type == 0)
       {
           llOwnerSay("Near");
       }
       else if (type == 1)
       {
           llOwnerSay("Stopping");
       }
       else if (type == 2)
       {
           llOwnerSay("Cannot path find from current location! Attempting to go to the center of the region.");
           
           llNavigateTo(<128.0, 128.0, llGround(<128.0, 128.0, 0.0> - llGetPos())>, [FORCE_DIRECT_PATH, TRUE]);
       }
       else if (type == 3)
       {
           llOwnerSay("Goal not on navmesh!");
       }
       else if (type == 4)
       {
           llOwnerSay("Goal unreachable!");
       }
       else if (type == 5)
       {
           llOwnerSay("Target gone!");
       }
       else if (type == 6)
       {
           llOwnerSay("No place to go!");
       }
       else if (type == 7)
       {
           llOwnerSay("Hiding from pursuer...");
       }
       else if (type == 8)
       {
           llOwnerSay("Switched from hiding to running...");
       } else
       {
           llOwnerSay("Unknown failure");
       }
   }

} </lsl>

See Also

Functions

• llNavigateTo
• llCreateCharacter

Deep Notes

Signature
event void path_update( integer type, list reserved );