Template:LSL Function/link

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/LSL

#var	value
p__desc	Link number (0: unlinked, 1: root prim, >1: child prims and seated avatars) or a LINK_* flag
also_functions	•  llGetLinkNumber – Returns the link number of the prim the script is in.
constants_nb	Flag Description LINK_ROOT 1 refers to the root prim in a multi-prim linked set[1] LINK_SET -1 refers to all prims LINK_ALL_OTHERS -2 refers to all other prims Flag Description LINK_ALL_CHILDREN -3 refers to all children, (everything but the root) LINK_THIS -4 refers to the prim the script is in
notes	Link Numbers Each prim that makes up an object has an address, a link number. To access a specific prim in the object, the prim's link number must be known. In addition to prims having link numbers, avatars seated upon the object do as well. If an object consists of only one prim, and there are no avatars seated upon it, the (root) prim's link number is zero. However, if the object is made up of multiple prims or there is an avatar seated upon the object, the root prim's link number is one. When an avatar sits on an object, it is added to the end of the link set and will have the largest link number. In addition to this, while an avatar is seated upon an object, the object is unable to link or unlink prims without unseating all avatars first. Counting Prims & Avatars There are two functions of interest when trying to find the number of prims and avatars on an object. llGetNumberOfPrims() - Returns the number of prims and seated avatars. llGetObjectPrimCount(llGetKey()) - Returns only the number of prims in the object but will return zero for attachments. <lsl>integer GetPrimCount() { //always returns only the number of prims if(llGetAttached())//Is it attached? return llGetNumberOfPrims();//returns avatars and prims but attachments can't be sat on. return llGetObjectPrimCount(llGetKey());//returns only prims but won't work on attachments. }</lsl>See llGetNumberOfPrims for more about counting prims and avatars. Errata If a script located in a child prim erroneously attempts to access link 0, it will get or set the property of the linkset's root prim. This bug (BUG-4929) is preserved for broken legacy scripts.