OsNpcLookAt

• npckey : The key of the npc.
• type : the type of the lookat
• targetkey : a object or avatar target
• offset : a offset relative to that target in target local coordinates, or if target is nullkey a GLOBAL position.

This sends a viewer lookat effect relative to that npc to all avatars in region.
This will make those viewers turn the npc head and eyes to the target position plus offset, if the current head animation priority is lower than the viewers defined head movement priority, usually 1.

type defines what kind of event or attention. They have viewer defined priorities relative to each other Only the one with higher priority will play.

type constants:

• NPCLOOKAT_NONE = 0; nothing
• NPCLOOKAT_IDLE = 1; mouse movements
• NPCLOOKAT_LISTEN = 2; listing to nearby chat
• NPCLOOKAT_FREELOOK = 3;
• NPCLOOKAT_RESPOND = 4; begin of typing
• NPCLOOKAT_HOVER = 5; mouse hovering on a object
• NPCLOOKAT_CONVERSATION = 6;
• NPCLOOKAT_SELECT = 7; object grabbed
• NPCLOOKAT_FOCUS = 8; focused on a object or point
• NPCLOOKAT_MOUSELOOK = 9; mouse look
• NPCLOOKAT_CLEAR = 10; should clear current one ?

What does happen to the npc is viewer dependent and also may also be npc gender dependent.

For example to set normal look forward like idle mouse

osNpcLookAt(npckey, NPCLOOKAT_IDLE, npckey, <2.5, 0.0, 0.0>); // (looks to npc position plus 2.5m on x that is its front direction)

function will return a integer < 0 on error

-1 invalid type
-2 could not parse npckey
-3 npc not found on region
-4 could not parse targetkey
-5 target key is not null key, or there is no agent or object with that key in region