Chat Logger (GPL)

This code demonstrates several functions in combination. Listens, dialogs, Lists, states, arrays, etc.

Preamble: Code adapted from: http://www.simteach.com/wiki/index.php?title=SL_Chat_Logger (by Patch Lamington) which is covered by GNU Free Documentation License (http://www.gnu.org/copyleft/fdl.html) in the spirit of which this script is GPL'd. Copyright (C) 2007 Nobody Fugazi/T. Rampersad

(This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. The GPL license: [1]

(You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Change Log:

• March 15, 2008: Fixed memory leaks & cleaned up the whitespace. (SO)
• January 12, 2007: Text output in HTML, Requests permissions from user before logging chat. (NF/TR)

<lsl>list names; list speech; list colours=["002EB8","FF6633","006600","660066","660033","663300","1A9900","FF14B1","001A99","B88A00"]; list unique_names; list ignore_names; list buffer_await;

list ALLOW_MENU = ["sure", "no way"]; // the main menu integer CHANNEL = 42; // Life, the Universe, and Everything. integer HandleDialogListen;

default {

   state_entry()
   {
       llSetText("This is a GPL Chat Logger.\n We request permission before recording.",<0.0, 0.0, 0.0>, 1.0);
       integer i = 0;
       integer c = llGetListLength(names);
       for (;i < c;++i)
       {
           llSetObjectName("" + llList2String(names,i) );
           llOwnerSay( llList2String(speech,i) + "" );
       }
       names = speech = unique_names = [];
       llSetObjectName("GPL ChatLogger 0.1");
   }

   on_rez(integer i)
   {
       llResetScript();
   }
   
   touch_start(integer total_number)
   {
       if (llDetectedKey(0) == llGetOwner() )
       {
           llSay(0, "Beginning Chat Logging.");
           state chat_logging;
       }
   }

}

state chat_logging {

   state_entry()
   {
       llListen(0,"",NULL_KEY,"");
       buffer_await = [];
   }

   on_rez(integer i)
   {
       llOwnerSay("Logging still active! Touch to get playback");
   }
   
   timer()
   {
       // If the dialog is hanging out doing nothing too long, kill the llListen
       llListenRemove(HandleDialogListen);
       buffer_await = [];
   }
   
   touch_start(integer total_number)
   {
       if (llDetectedKey(0) == llGetOwner() )
       {
           llSay(0, "chat logging now off - replaying log!.");
           buffer_await = [];
           state default;
       }
   }
   
   listen(integer channel, string name, key id, string message)
   {
       if (llGetOwnerKey(id) == id)//only listen to avatars (they own themselves)
       {
           // Is this a message from the permissions dialog?
           list temp_name = (list)name;
           if (channel == CHANNEL)
           {
               if (~llListFindList(ALLOW_MENU, [message]))
               {
                   // we'll need this from the strided list.
                   integer buffer_loc;
                   
                   if (~(buffer_loc = llListFindList(ignore_names, temp_name)))
                   {
                       ignore_names = llDeleteSubList(ignore_names, buffer_loc, buffer_loc);
                   }
                   if (~(buffer_loc = llListFindList(unique_names, temp_name)))
                   {
                       unique_names = llDeleteSubList(unique_names, buffer_loc, buffer_loc);
                   }
                   if (message == "sure")
                   {
                       unique_names += name;
                       while (~(buffer_loc = llListFindList(buffer_await, temp_name)))
                       {
                           // buffered message is worthwhile, so add it:
                           names += llList2String(buffer_await, buffer_loc);
                           speech += llList2String(buffer_await, buffer_loc + 1);
                           buffer_await = llDeleteSubList(buffer_await, buffer_loc, buffer_loc + 1);
                       }
                   }
                   else 
                   {
                       ignore_names += name;
                       while (~(buffer_loc = llListFindList(buffer_await, temp_name)))
                       {
                           buffer_await = llDeleteSubList(buffer_await, buffer_loc, buffer_loc + 1);
                       }
                   }
                   if (buffer_await == [])
                   {
                       llListenRemove(HandleDialogListen);
                   }
               }
           }
           else if (!~llListFindList(ignore_names, temp_name))
           {
               if (!~llListFindList(unique_names, temp_name))
               {
                   //Check if avatar will give permissions
                   if (!~llListFindList(buffer_await, temp_name))
                   {
                       if (buffer_await == [])
                       {
                           HandleDialogListen = llListen(CHANNEL, "", NULL_KEY, "");
                       }
                       llDialog(id, "Hello. This is a chat logger. If you give us permission, your participation will be recorded. May we have your permission?", ALLOW_MENU, CHANNEL);
                       // Give people 1.5 minutes to respond, 
                       // else kill the llListen in timer()
                      llSetTimerEvent(0.0);
                      llSetTimerEvent(90.0);
                   }
                   // store in strided buffer in case last message is to be permed.
                   buffer_await += temp_name + (key)message; 
               }
               else
               {
                   names += name;
                   speech += message;
               }
           }
       }    
   }

}</lsl>