Difference between revisions of "MLPV2 LockGuard plugin"

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m
Line 14: Line 14:
 
<lsl>
 
<lsl>
 
// ----------------------------------------------------------------------------------
 
// ----------------------------------------------------------------------------------
// MLPV2 Plugin for LockGuard Partical Chaining v1.2
+
// MLPV2 Plugin for LockGuard Particle Chaining v1.3
 
// ----------------------------------------------------------------------------------
 
// ----------------------------------------------------------------------------------
  
Line 62: Line 62:
 
// Changes:
 
// Changes:
 
// ----------------------------------------------------------------------------------
 
// ----------------------------------------------------------------------------------
 +
// Version 1.3
 +
// - Fixed an error that was causing multiple avatar chain sets from working
 +
// - Fixed chainData not properly clearing on a reload
 +
// - Changed the order of operations in the changed state for better tracking and simplified
 +
//
 
// Version 1.2
 
// Version 1.2
 
// - Large overhaul of how the data on the cards is stored.  Original format was made
 
// - Large overhaul of how the data on the cards is stored.  Original format was made
Line 67: Line 72:
 
//  swap function in a chained context, so why complicate the notecard files?  Plus
 
//  swap function in a chained context, so why complicate the notecard files?  Plus
 
//  new format is more memory friendly.
 
//  new format is more memory friendly.
// - Notecard seperator changed from ; to | to match favorite RLV plugin format
+
// - Note card seperator changed from ; to | to match favorite RLV plugin format
// - Changed the need for the animation name to just the ball number in the notecard
+
// - Changed the need for the animation name to just the ball number in the note card
 
// - Removed some unused variables
 
// - Removed some unused variables
 
// - Note card renamed to .CHAINDATA to follow MLP2 naming conventions
 
// - Note card renamed to .CHAINDATA to follow MLP2 naming conventions
Line 100: Line 105:
  
 
string  Pose;                  // Pose name
 
string  Pose;                  // Pose name
//string  Avname;                // Av Name
 
 
key    Avkey;                  // Avatar Key
 
key    Avkey;                  // Avatar Key
  
Line 135: Line 139:
 
     ConfigCardIndex++;
 
     ConfigCardIndex++;
 
     ConfigQueryId = llGetNotecardLine(ConfigCardName, ConfigLineIndex);
 
     ConfigQueryId = llGetNotecardLine(ConfigCardName, ConfigLineIndex);
     debug("[?] Reading file: " + ConfigCardName);
+
     debug("====================\n[?] Reading file: " + ConfigCardName);
 
     return (TRUE);
 
     return (TRUE);
 
}
 
}
Line 207: Line 211:
 
state load  {
 
state load  {
 
     state_entry() {
 
     state_entry() {
 +
        chainData = []; // reset chainData in case it's a soft reload of info
 +
        avData = []; // reset avData for soft reload.  PLEASE do not be sitting while editing chain data.     
 
         string item;
 
         string item;
 
         ConfigCards = [];
 
         ConfigCards = [];
Line 248: Line 254:
  
 
state on {
 
state on {
     state_entry()  {   }
+
     state_entry()  {
 +
            debug("[!] Ready!\n====================");
 +
        }
 
     on_rez(integer arg) { llResetScript(); }        // Object was rezed in world, reset script for freshness
 
     on_rez(integer arg) { llResetScript(); }        // Object was rezed in world, reset script for freshness
 
     changed(integer change) {
 
     changed(integer change) {
Line 263: Line 271:
 
             return;                    // Nothing more for us, so return
 
             return;                    // Nothing more for us, so return
 
         }
 
         }
        debug("========== START");
 
  
 
         list linedata = llParseStringKeepNulls(message,["|"],[]);  // It's a generic sit/unsit/change update, so break it down
 
         list linedata = llParseStringKeepNulls(message,["|"],[]);  // It's a generic sit/unsit/change update, so break it down
Line 271: Line 278:
 
         integer findSet = llListFindList(chainData, (list)CurrentSet);  // Check chainData for this set name...         
 
         integer findSet = llListFindList(chainData, (list)CurrentSet);  // Check chainData for this set name...         
 
         integer findAv = llListFindList(avData, [id]);                  // Check avData for the person sitting...
 
         integer findAv = llListFindList(avData, [id]);                  // Check avData for the person sitting...
 +
       
 +
        debug("==========\n= SET: " + CurrentSet + "  BALL: " + param1 + "  ANIMATION: " + param2);
  
 
         if (findSet == -1) {                                            // There is no chain data for this set, so...
 
         if (findSet == -1) {                                            // There is no chain data for this set, so...
Line 286: Line 295:
 
         } else debug("[!] Chain data found");
 
         } else debug("[!] Chain data found");
  
        if (llList2String(chainData,findSet + 1) != param1) {  return;  }    // We have data for this set, but not this ball.  Returning.
 
  
 
         list chainLog = [];                                                    // set up the list of commands [attachpoint, params]
 
         list chainLog = [];                                                    // set up the list of commands [attachpoint, params]
Line 292: Line 300:
 
         for(ii = 0; ii < llGetListLength(chainData); ii = ii + chainStride) {  // Run through the chainData list... [lable,ballnum,attachpoint,params]
 
         for(ii = 0; ii < llGetListLength(chainData); ii = ii + chainStride) {  // Run through the chainData list... [lable,ballnum,attachpoint,params]
 
             if (llList2String(chainData, ii) == CurrentSet) {                  //  if the set has a match...
 
             if (llList2String(chainData, ii) == CurrentSet) {                  //  if the set has a match...
                 chainLog = llList2List(chainData, ii + 2, ii + 3) + chainLog;  //  add attachpoint and params to chainLog
+
                 if (llList2String(chainData, ii + 1) == param1) {              //  if the matching set also matches ball...
             }                                                                  // End if
+
                    chainLog = llList2List(chainData, ii + 2, ii + 3) + chainLog;  //  add attachpoint and params to chainLog
 +
                }                                                              // End ball if
 +
             }                                                                  // End set if
 
         }                                                                      // End for
 
         }                                                                      // End for
 +
       
 +
        if (chainLog == []) {  return;  }    // We have data for this set, but not this ball.  Returning.
  
 
         // TYPE: sit
 
         // TYPE: sit
Line 339: Line 351:
 
         if (num == -11002) {
 
         if (num == -11002) {
 
             debug("[!] Pose change triggered");
 
             debug("[!] Pose change triggered");
            list itemData = [];                                                                        // Set up itemData
+
                       
             if (findAv != -1) {                                                                        // Are we already doing something to av?
+
             if (findAv != -1) {                                                                        // If avatar exists in avData...
                 itemData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);           // if we are, get that data
+
                 list itemData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);     // Get the chains we have active on av
                 itemData = UnAliasChainPoints(itemData);                                               // unalias the data for multiple points
+
                 integer yx;                                                                            // Initialize counter var
             }                                                                                          // end if for av finding
+
                for(yx = 0; yx < llGetListLength(itemData); yx++) {                                    // Step through list of chain data
 
+
                    llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(itemData,yx) + " unlink");  // Tell LG items to let go
             integer ix;                                                                                // Initialize counter var
+
                    debug("[-] " + llList2String(itemData,yx));
             string tempPoints = "";                                                                    // Set up a holding var
+
                }                                                                                      // End for
             for(ix = 0; ix < llGetListLength(chainLog); ix = ix + 2) {                                  // Step through chainLog
+
                avData = llDeleteSubList(avData, findAv, findAv + 1);                                  // Remove data from avData
                 integer findKey = llListFindList(primKeys, (list)llList2String(chainLog, ix));          // find location of attach point in primKeys
+
             }                                                                                          // End if for av found in list       
 +
              
 +
             string tempPoints = "";                                                                    // set up tempPoints
 +
            integer zx;                                                                                // initalize counter
 +
             for(zx = 0; zx < llGetListLength(chainLog); zx = zx + 2) {                                  // step through chainLog
 +
                 integer findKey = llListFindList(primKeys, (list)llList2String(chainLog, zx));          // find the target point in the key list
 
                  
 
                  
 
                 if (findKey == -1) {                                                                    // if point does not exist..
 
                 if (findKey == -1) {                                                                    // if point does not exist..
                     llWhisper(0,"[!] " + llList2String(chainLog, ix) + " does not exist!");            // warn user
+
                     llWhisper(0,"[!] " + llList2String(chainLog, zx) + " does not exist!");            // warn user
 
                 }                                                                                      // end if
 
                 }                                                                                      // end if
 
                  
 
                  
                 llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(chainLog,ix + 1) +  // Tell LG attachments to draw the chains
+
                 llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(chainLog,zx + 1) +  // sent link command to LG items
 
                             " link " + llList2String(primKeys, findKey + 1));
 
                             " link " + llList2String(primKeys, findKey + 1));
                 debug("[+] " + llList2String(chainLog,ix + 1));
+
                 debug("[+] " + llList2String(chainLog,zx + 1));
 
+
                 tempPoints = tempPoints +  llList2String(chainLog,zx + 1) + "|";                       // update tempPoints var
                 // cut down the command line to just the attach point for compairison
+
                string stripPoint = llList2String(llParseStringKeepNulls(llList2String(chainLog,ix + 1),[" "],[]), 0);
+
                tempPoints = tempPoints + stripPoint + "|";                                             // update tempPoints
+
            }
+
 
+
            tempPoints = llGetSubString(tempPoints, 0, -2);                                            // trim the final char "|"
+
           
+
            if (findAv != -1) { avData = llDeleteSubList(avData, findAv, findAv + 1);  }              // clear old av data if it exists
+
            avData = (avData=[]) + avData + [id];                                                      // add new av key
+
            avData = (avData=[]) + avData + [tempPoints];                                              // add new attach point data
+
           
+
            list tempData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);          // Grab the list of chained points
+
            tempData = UnAliasChainPoints(tempData);                                                    // Unalias the data if it has groups
+
            // compaire the two data lists, remove dumplicates
+
            integer yx;                                                                                // Initialize counter var
+
            for(yx = 0; yx < llGetListLength(tempData); yx++) {                                        // step through tempData
+
                integer overlapWhere = llListFindList(itemData, llList2List(tempData, yx, yx));        // look for duplicate entries
+
                    if (overlapWhere != -1) {                                                          // if we find a duplicate...
+
                        itemData = llDeleteSubList(itemData, overlapWhere, overlapWhere);              //  remove it from the list
+
                    }                                                                                  // end duplication check if
+
 
             }                                                                                          // end for
 
             }                                                                                          // end for
 
              
 
              
             if ((findAv != -1) && ( llGetListLength(itemData) > 0)) {                                  // Do we have left over points for av?
+
             tempPoints = llGetSubString(tempPoints, 0, -2);                                            // trim the final char since we're done
                for(ix = 0; ix < llGetListLength(itemData); ix++) {                                    // Step through itemData
+
            avData = (avData=[]) + avData + [id];                                                       // add new key to avData [avkey,currentchains]
                    llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(itemData,ix) + " unlink"); // tell LG to unlink
+
            avData = (avData=[]) + avData + [tempPoints];                                               // add new chained points to avData
                debug("[-] " + llList2String(itemData,ix));
+
                }                                                                                      // end for
+
            }                                                                                          // end leftover if
+
 
         }                                                                                              // end change if
 
         }                                                                                              // end change if
 
     }                                                                                                  // end link_message
 
     }                                                                                                  // end link_message
}                                                                                                      // end state on
+
}                                                                                                      // end state on                                                                                // end state on
 
</lsl>
 
</lsl>
  

Revision as of 12:41, 6 May 2011

Basically this is an alternate way of adding particle chain support to MLP2 using the LockGuard protocol. When the object is rezzed in world the script makes a list of the prim names and keys for later. It then reads the note card with the linking information each time inventory changes. When MLP2 gives pose info the script determines if it pertains to it's list and if so notifies lockguard enabled attachments of what to do and what prim keys to do it to.

So what do you need to do?

Step 1: Figure out what prims you want to use as anchor points, and give each a unique name. Personally I recommend the boring yet easy to remember format of point1, point2, point3, etc. Remember these names for later.

Step 2: Add the following script to your furniture. It may complain, but you can ignore that for now.

<lsl> // ---------------------------------------------------------------------------------- // MLPV2 Plugin for LockGuard Particle Chaining v1.3 // ----------------------------------------------------------------------------------

// ---------------------------------------------------------------------------------- // Notecard Format // ---------------------------------------------------------------------------------- // Notecard .CHAINDATA format: // menulable | ballnumber | anchorprimname | LGattachpoint optionalparams // // Example data: // Bound | 0 | point2 | rightwrist gravity 0.2 life 0.75 // Bound | 0 | point4 | leftwrist gravity 0.2 life 0.75 // Bound | 0 | point3 | collarfrontloop gravity 1.75 life 1.5 // Displayed | 0 | point1 | wrists gravity 0.0 life 2.0 // Hung | 0 | point1 | wrists gravity 0.0 life 0.75 // Dangled | 0 | point1 | ankles gravity 0.0 life 0.75 // Captured | 0 | point3 | wrists

// ---------------------------------------------------------------------------------- // Copyright 2011, Grey Mars. All rights reserved. // ---------------------------------------------------------------------------------- // Redistribution and use in source and binary forms, with or without modification, are // permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, this list of // conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright notice, this list // of conditions and the following disclaimer in the documentation and/or other materials // provided with the distribution. // // THIS SOFTWARE IS PROVIDED BY GREY MARS ``AS IS AND ANY EXPRESS OR IMPLIED // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND // FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // The views and conclusions contained in the software and documentation are those of the // authors and should not be interpreted as representing official policies, either expressed // or implied, of Grey Mars.

// ---------------------------------------------------------------------------------- // Changes: // ---------------------------------------------------------------------------------- // Version 1.3 // - Fixed an error that was causing multiple avatar chain sets from working // - Fixed chainData not properly clearing on a reload // - Changed the order of operations in the changed state for better tracking and simplified // // Version 1.2 // - Large overhaul of how the data on the cards is stored. Original format was made // to preserve the working of the MLP2 swap function. However no one ever uses the // swap function in a chained context, so why complicate the notecard files? Plus // new format is more memory friendly. // - Note card seperator changed from ; to | to match favorite RLV plugin format // - Changed the need for the animation name to just the ball number in the note card // - Removed some unused variables // - Note card renamed to .CHAINDATA to follow MLP2 naming conventions // - Removed sim ratings data poll. // - Added warning if the desired target point does not exist in the linkset // - Added more comments because comments are good. // // Version 1.1 // - Added a data reload on inventory change // // Version 1.0 // - Changed script name from ~chaincontrol // - Cleaned up old comments and made it more readable // - First post to lsl wiki ( https://wiki.secondlife.com/wiki/MLPV2_Addons )

// ---------------------------------------------------------------------------------- // Globals // ----------------------------------------------------------------------------------

integer VERBOSE = FALSE; // Give extra info

integer LGChannel = -9119; // The LG listen channel integer LGHandle; // Handle ID for LG messages

// Globals for reading card config integer ConfigLineIndex; list ConfigCards; // list of names of config cards string ConfigCardName; // name of card being read integer ConfigCardIndex; // index of next card to read key ConfigQueryId; // The dataserver ID for the query sent

string Pose; // Pose name key Avkey; // Avatar Key

string CurrentSet = "stand"; // stand being the menu default

list chainData = []; // The list of all data from the notecard [lable,ballnum,attachpoint,params] integer chainCount = 0; // How many entries in the list integer chainStride = 4; // The stride count for the list

list primKeys = []; // The list of prims in the object and thier keys [primname,key] integer primKeysCount = 0; // How many entries in the list integer primKeysStride = 2; // The stride count for the list

list avData = []; // The list of currently chained avs [avkey,currentchains] integer avDataCount = 0; // How many entries in the list integer avDataStride = 2; // The stride count for the list

// ---------------------------------------------------------------------------------- // Support functions // ----------------------------------------------------------------------------------

// Debugging outputs debug(string text) { if (VERBOSE) llOwnerSay(text); }

// get the next card in case there is more than one integer next_card() {

   if (ConfigCardIndex >= llGetListLength(ConfigCards)) {
       ConfigCards = [];
       return (FALSE);
   }
   
   ConfigLineIndex = 0;
   ConfigCardName = llList2String(ConfigCards, ConfigCardIndex);
   ConfigCardIndex++;
   ConfigQueryId = llGetNotecardLine(ConfigCardName, ConfigLineIndex);
   debug("====================\n[?] Reading file: " + ConfigCardName);
   return (TRUE);

}

// add chain data to the list... add_cd(string lable, string ballnum, string target, string params) {

   chainData = (chainData=[]) + chainData + (list)lable;
   chainData = (chainData=[]) + chainData + (list)ballnum;
   chainData = (chainData=[]) + chainData + (list)target;
   chainData = (chainData=[]) + chainData + (list)params;
   ++chainCount;

}

// Does this point actually referance a set of points? list UnAliasChainPoints(list originalData) { // wrists -> leftwrist rightwrist // ankles -> leftankle rightankle // allfour -> leftwrist rightwrist leftankle rightankle // nipples -> leftnipplering rightnipplering // arms -> leftupperarm rightupperarm // thighs -> leftupperthigh rightupperthigh // knees -> leftknee rightknee

   list modData = [];
   integer xx;
   
   // Hacky.  Feel free to optimize.
   for(xx = 0; xx < llGetListLength(originalData); xx++) {
       if (llToLower(llList2String(originalData,xx)) == "wrists") {
           modData = modData + ["leftwrist", "rightwrist"];
       } else if (llToLower(llList2String(originalData,xx)) == "ankles") {
           modData = modData + ["leftankle", "rightankle"];
       } else if (llToLower(llList2String(originalData,xx)) == "allfour") {
           modData = modData + ["leftankle", "rightankle", "leftwrist", "rightwrist"];
       } else if (llToLower(llList2String(originalData,xx)) == "nipples") {
           modData = modData + ["leftnipplering", "rightnipplering"];
       } else if (llToLower(llList2String(originalData,xx)) == "arms") {
           modData = modData + ["leftupperarm", "rightupperarm"];
       } else if (llToLower(llList2String(originalData,xx)) == "thighs") {
           modData = modData + ["leftupperthigh", "rightupperthigh"];
       } else if (llToLower(llList2String(originalData,xx)) == "knees") {
           modData = modData + ["leftknee", "rightknee"];
       } else {    modData = modData + llList2List(originalData,xx,xx);     }
   }
   
   return modData;   

}

// ---------------------------------------------------------------------------------- // Main Script // ----------------------------------------------------------------------------------

default {

   state_entry() {
       
       // Now we build the prim key list...
       integer n;                                                      // Initialize the counter
       integer linkcount = llGetNumberOfPrims();                       // How many items in the link set?
       for (n = 2; n <= linkcount; n++)    {                           // Cycle through, skipping root
           string thiselement = llGetLinkName(n);                      // Get the prim name
           if (thiselement != "Object") {                              // If the name is something besides the default...
               primKeys = primKeys + [thiselement, llGetLinkKey(n)];   // add it to primKeys
               primKeysCount++;                                        // increment counter
           }                                                           // end if
       }                                                               // end for loop
       
       state load;                                                     // Go load the data...
   }

}

state load {

   state_entry() {
       chainData = []; // reset chainData in case it's a soft reload of info
       avData = []; // reset avData for soft reload.  PLEASE do not be sitting while editing chain data.       
       string item;
       ConfigCards = [];
       integer n = llGetInventoryNumber(INVENTORY_NOTECARD);
       while (n-- > 0) { // get the data off cards with the right name
           item = llGetInventoryName(INVENTORY_NOTECARD, n);
           if (llSubStringIndex(item, ".CHAINDATA") != -1) {
               ConfigCards = (ConfigCards=[]) + ConfigCards + (list) item;
           }
       }
       ConfigCardIndex = 0;
       ConfigCards = llListSort(ConfigCards, 1, TRUE);
       next_card();
   }
   
   dataserver(key query_id, string data) {
       
       if (query_id != ConfigQueryId) {    return;     }   // Make sure this is the data event we asked for
       
       if (data == EOF) {                      // Finished with this card...
           if ( next_card() ) { return;  }     // Are there more cards to process?
           state on;                           // All cards done, go to the on state
       }
       
       data = llStringTrim(data, STRING_TRIM);                                     // Cut off white space from the front and end...
       if (llGetSubString(data,0,0) != "/" && llStringLength(data)) {              // Skip comments and blank lines
           list ldata = llParseStringKeepNulls(data, ["|"], []);                   // Get the whole line for processing...
           string lable = llStringTrim(llList2String(ldata, 0), STRING_TRIM);      //   Extract lable
           string ballnum = llStringTrim(llList2String(ldata, 1), STRING_TRIM);    //   Extract ball number
           string target = llStringTrim(llList2String(ldata, 2), STRING_TRIM);     //   Extract target point
           string param = llStringTrim(llList2String(ldata, 3), STRING_TRIM);      //   Extract params
           add_cd(lable,ballnum,target,param);                                     // Add all that to chainData
       }
       
       ++ConfigLineIndex;                                                  // Incrament counter
       ConfigQueryId = llGetNotecardLine(ConfigCardName, ConfigLineIndex); // Read next line of data notecard...
   }

}


state on {

   state_entry()   {
           debug("[!] Ready!\n====================");
       }
   on_rez(integer arg) { llResetScript(); }        // Object was rezed in world, reset script for freshness
   changed(integer change) {
       if (change & CHANGED_INVENTORY) state load; // Inventory changed, so reload the card data to be safe
   }
   link_message(integer from, integer num, string message, key id) {
       
       // Do we care about this link message?  If not, just return
       if (!((num == -11000) || (num == -11001) || (num == -11002) || (message == "POSEB"))) { return; }
   
       if (message == "POSEB") {       // Is it a set change?
           CurrentSet = (string)id;    // Save the set name...
           return;                     // Nothing more for us, so return
       }
       list linedata = llParseStringKeepNulls(message,["|"],[]);   // It's a generic sit/unsit/change update, so break it down
       string param1 = llList2String(linedata, 0);                 //    Extract ball number
       string param2 = llList2String(linedata, 1);                 //    Extract animation
       integer findSet = llListFindList(chainData, (list)CurrentSet);  // Check chainData for this set name...        
       integer findAv = llListFindList(avData, [id]);                  // Check avData for the person sitting...
       
       debug("==========\n= SET: " + CurrentSet + "   BALL: " + param1 + "   ANIMATION: " + param2);
       if (findSet == -1) {                                            // There is no chain data for this set, so...
           debug("[!] No chain data found");
           if (findAv != -1) {                                         // Do we still have chain data for this av, and need to clear it?
               list itemData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);  // find the stored data
               integer ix;                                                                         // initialize counter
               for(ix = 0; ix < llGetListLength(itemData); ix++) {                                 // Step through the stored data
                   llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(itemData,ix) + " unlink");  // unlink from points
                   debug("[-] " + llList2String(itemData,ix));
               }                                                                                   // end for
               avData = llDeleteSubList(avData, findAv, findAv + 1);                               // finally delete the stored data
           }                                                                                       // end findAv if
           return;                                                                                 // No further processing for this event needed
       } else debug("[!] Chain data found");


       list chainLog = [];                                                     // set up the list of commands [attachpoint, params]
       integer ii;                                                             // initialize counter var
       for(ii = 0; ii < llGetListLength(chainData); ii = ii + chainStride) {   // Run through the chainData list... [lable,ballnum,attachpoint,params]
           if (llList2String(chainData, ii) == CurrentSet) {                   //   if the set has a match...
               if (llList2String(chainData, ii + 1) == param1) {               //   if the matching set also matches ball...
                   chainLog = llList2List(chainData, ii + 2, ii + 3) + chainLog;   //   add attachpoint and params to chainLog
               }                                                               // End ball if
           }                                                                   // End set if
       }                                                                       // End for
       
       if (chainLog == []) {   return;   }     // We have data for this set, but not this ball.  Returning.
       // TYPE: sit
       // FORMAT: llMessageLinked(LINK_SET, -11000, (string)BallNum + "|" + animation, avatar);
       if (num == -11000) {
           debug("[!] Sit triggered");
           string tempPoints = "";                                                                     // set up tempPoints
           integer ix;                                                                                 // initalize counter
           for(ix = 0; ix < llGetListLength(chainLog); ix = ix + 2) {                                  // step through chainLog
               integer findKey = llListFindList(primKeys, (list)llList2String(chainLog, ix));          // find the target point in the key list
               
               if (findKey == -1) {                                                                    // if point does not exist..
                   llWhisper(0,"[!] " + llList2String(chainLog, ix) + " does not exist!");             // warn user
               }                                                                                       // end if
               
               llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(chainLog,ix + 1) +  // sent link command to LG items
                           " link " + llList2String(primKeys, findKey + 1));
               debug("[+] " + llList2String(chainLog,ix + 1));
               tempPoints = tempPoints +  llList2String(chainLog,ix + 1) + "|";                        // update tempPoints var
           }                                                                                           // end for
           
           tempPoints = llGetSubString(tempPoints, 0, -2);                                             // trim the final char since we're done
           avData = (avData=[]) + avData + [id];                                                       // add new key to avData [avkey,currentchains]
           avData = (avData=[]) + avData + [tempPoints];                                               // add new chained points to avData
       }                                                                                               // End if for sit
       // TYPE: unsit
       // FORMAT:  llMessageLinked(LINK_SET, -11001, (string)BallNum, llGetPermissionsKey());
       if (num == -11001) {
           debug("[!] Unsit triggered"); 
           if (findAv != -1) {                                                                         // If avatar exists in avData...
               list itemData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);      // Get the chains we have active on av
               integer ix;                                                                             // Initialize counter var
               for(ix = 0; ix < llGetListLength(itemData); ix++) {                                     // Step through list of chain data
                   llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(itemData,ix) + " unlink");  // Tell LG items to let go
                   debug("[-] " + llList2String(itemData,ix));
               }                                                                                       // End for
               avData = llDeleteSubList(avData, findAv, findAv + 1);                                   // Remove data from avData
           }                                                                                           // End if for av found in list
       }                                                                                               // End if for unsit
       
       // TYPE: change
       // FORMAT: llMessageLinked(LINK_SET, -11002, (string)BallNum + "|" + animation, avatar);
       if (num == -11002) {
           debug("[!] Pose change triggered");
                       
           if (findAv != -1) {                                                                         // If avatar exists in avData...
               list itemData = llParseStringKeepNulls(llList2String(avData,findAv + 1),["|"],[]);      // Get the chains we have active on av
               integer yx;                                                                             // Initialize counter var
               for(yx = 0; yx < llGetListLength(itemData); yx++) {                                     // Step through list of chain data
                   llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(itemData,yx) + " unlink");  // Tell LG items to let go
                   debug("[-] " + llList2String(itemData,yx));
               }                                                                                       // End for
               avData = llDeleteSubList(avData, findAv, findAv + 1);                                   // Remove data from avData
           }                                                                                           // End if for av found in list        
           
           string tempPoints = "";                                                                     // set up tempPoints
           integer zx;                                                                                 // initalize counter
           for(zx = 0; zx < llGetListLength(chainLog); zx = zx + 2) {                                  // step through chainLog
               integer findKey = llListFindList(primKeys, (list)llList2String(chainLog, zx));          // find the target point in the key list
               
               if (findKey == -1) {                                                                    // if point does not exist..
                   llWhisper(0,"[!] " + llList2String(chainLog, zx) + " does not exist!");             // warn user
               }                                                                                       // end if
               
               llWhisper(LGChannel,"lockguard " + (string)id + " " + llList2String(chainLog,zx + 1) +  // sent link command to LG items
                           " link " + llList2String(primKeys, findKey + 1));
               debug("[+] " + llList2String(chainLog,zx + 1));
               tempPoints = tempPoints +  llList2String(chainLog,zx + 1) + "|";                        // update tempPoints var
           }                                                                                           // end for
           
           tempPoints = llGetSubString(tempPoints, 0, -2);                                             // trim the final char since we're done
           avData = (avData=[]) + avData + [id];                                                       // add new key to avData [avkey,currentchains]
           avData = (avData=[]) + avData + [tempPoints];                                               // add new chained points to avData
       }                                                                                               // end change if
   }                                                                                                   // end link_message

} // end state on // end state on </lsl>

Step 3: Create the data note card. This card needs to be named .CHAINDATA but can have a further name past that if you need to use more than one card. The card will look something like this:

//////////////////////////////////////////////////
// Chain control
//////////////////////////////////////////////////
//  Part 1: menulable
//  Part 2: ball chain is linked to
//  Part 3: prim name to link to
//  Part 4: LG attach point
//  Part 4 optional commands:
//      texture key
//      size # #
//      life #
//      gravity #
//      speed #
//      color # # #
//////////////////////////////////////////////////
Bound | 0 | point2 | rightwrist gravity 0.2 life 0.75
Bound | 0 | point4 | leftwrist gravity 0.2 life 0.75
Bound | 0 | point3 | collarfrontloop gravity 1.75 life 1.5
Displayed | 0 | point1 | wrists gravity 0.0 life 2.0
Hung | 0 | point1 | wrists gravity 0.0 life 0.75
Dangled | 0 | point1 | ankles gravity 0.0 life 0.75
Captured | 0 | point3 | wrists