User:Opensource Obscure/Chromutate

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Overview

Chromutate is an interactive building/installation I'm working on - an excuse to play around with both Reflexive Architecture and the new HTTP-in LSL features. Feel free to visit it (from the web or in-world): change the colors of the building, rez stuff, send messages.... Take a copy of the scripted objects if you're inclined so, and please warn me if something doesn't work!

• Chromutate - webpage and public control panel
• SLURL

Ideas that could get into Chromutate

• http://code.google.com/intl/it-IT/apis/chart/faq.html
• http://open.myartsonline.com/stream.html
• as soon as we have full web support: move the web page to a prim face

Tech

I use Gridurl to maintain persistent URLs for my LSL scripts. See the code below.
Disclaimer: I'm not a real programmer and your comments and suggestions are welcome.

For the HTML, look the web page source. Here are the LSL scripts.
The main script below receives data from the web page, where you can choose colors and something else through a form. The script then parses those data and does some things with them - it rezzes an object (or not) and it relays the parsed data via chat channels to other objects.

first script - it manages HTTP calls and talks to Gridurl

<lsl>

string name1 = "LOL_color_controller"; string name2 = "Someone at http://open.myartsonline.com/http-in just wrote: ";

string risposta = "Thanks! Please use the button in your browser to go back."; key mykey = "eb42408b-5888-42b7-80d6-b00ca2eb9781"; // my SL UUID - change this!

string gridurl_key="4ab936c7-36dc-4444-82f9-62e4bf3a5475"; // change this! string gridurl_indirizzo = "http://gridurl.appspot.com/go/4ab936c7-36dc-4444-82f9-62e4bf3a5475"; // change this! string baseurl = "http://gridurl.appspot.com/reg?service=";

integer chan1 = -20241; // you may want to change this as well integer chan2 = -20242; // you may want to change this as well integer chan3 = -20243; // you may want to change this as well integer channel_avvertore = -20247; // you may want to change this as well

string strReplace(string str, string search, string replace) {

   return llDumpList2String(llParseStringKeepNulls((str = "") + str, [search], []), replace);

}

vector sbColorConvert(string strData) {

   integer mode = -1; // llListFindList(lstHTML, [llToLower(strData)]);
   integer intColor = 0;

   {

       string strStart = llGetSubString(strData, 0, 1);
       if (strStart != "0x") {
           if (llGetSubString(strStart, 0, 0) == "#") {
               strData = "0x" + llDeleteSubString(strData, 0, 0);
           }
           else {
               vector vecColor = (vector)("<"+strData+">");
               if (vecColor) {
                   return (vector)("<"+strData+">") / 255;
               }
               strData = "0x" + strData;
           }
       }
       intColor = (integer)strData;
       mode = llStringLength(strData);
   }
   if (mode == 8) {//RRGGBB
       return <(intColor >> 16) & 0xFF, (intColor >> 8) & 0xFF, (intColor & 0xFF)> / 0xFF;
   }
   return ZERO_VECTOR;//black

}

string url; string query; string nome; string t1 = "il mio indirizzo e' "; key requestid; integer status = FALSE; list requests; vector pos_orig;

//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////

// richiedo un nuovo URL per lo script setup() {

   url = "";
   llRequestURL();

}

// risponde via HTTP send_response(key id, string body) {

   llHTTPResponse(id, 200, risposta);

}

// http://gridurl.appspot.com/ update_gridurl(string testo) {

   query = gridurl_key + "&url=" + llEscapeURL(testo) + "/";
   requestid = llHTTPRequest(baseurl + query,[HTTP_METHOD,"GET", HTTP_MIMETYPE,"application/x-www-form-urlencoded"], "");    

}

// fa qualcosa fa(key id, string asd) {

   string a = llUnescapeURL(asd);
   send_response(id, a);    
   list variabili = llParseString2List(asd, ["rez=", "&color1=", "&color2=","&color3=", "&a="], [""]);
   integer rez_choice = (integer)llList2String(variabili, 0);
   string color1 = llUnescapeURL(llList2String(variabili, 1));
   string color2 = llUnescapeURL(llList2String(variabili, 2));    
   string color3 = llUnescapeURL(llList2String(variabili, 3));   
   string messaggio = llUnescapeURL(llList2String(variabili, 4));        
   llRegionSay(chan1, (string)sbColorConvert(color1));
   llRegionSay(chan2, (string)sbColorConvert(color2));    
   llRegionSay(chan3, (string)sbColorConvert(color3));          
   //    llOwnerSay("> " + llList2String(variabili, 0));
   if(rez_choice == 1)
   {
       altro();
   }
   if(messaggio)
   {
       messaggio = strReplace(messaggio, "+", " ");
       llSetObjectName(name2);
       llShout(0, messaggio);
       llSetObjectName(name1);
   }                  
   llInstantMessage(mykey, messaggio);                

}

altro() {

       string obj = llGetInventoryName(INVENTORY_OBJECT,0);
       // llOwnerSay("Da web mi fanno rezzare");
       llRezObject(obj, pos_orig + <0,0,2>, <0,0,0>, <0,0,0,0>, 1);
       llRegionSay(channel_avvertore,"spara");             

}

default {

   state_entry()
   {
       setup();
       pos_orig = llGetPos();
   }
   
   on_rez(integer n) 
   {
       setup(); 
   }

   changed(integer c)
   {
       if (c & (CHANGED_REGION | CHANGED_REGION_START | CHANGED_TELEPORT) )
       {
           setup();
       }
   }

// scatta in risposta a setup() cioe' alla richiesta di un nuovo URL

   http_request(key id, string method, string body)
   {
       // ci e' stato correttamente assegnato un nuovo URL
       if (method == URL_REQUEST_GRANTED)
       {
           url = body;
           llOwnerSay(" nuovo url = " + url);                   
           update_gridurl(body);            
       }
       
       else if (method == URL_REQUEST_DENIED)
       {
           llInstantMessage(mykey, "Something went wrong, no url. " + body);
       }
       // lo script e' stato richiamato (da un browser, cliccando su un link...)
       // fa qualcosa
       else if (method == "GET")
       {
               string asd = llGetHTTPHeader(id, "x-query-string"); 
               //llOwnerSay(" query = " + asd);         
               fa(id,asd);
       }
       else
       {
           llHTTPResponse(id,405,"Unsupported method.");
       }
   }

// comunico gli URL dello script

   touch_start(integer total_number)
   {
           llInstantMessage(mykey, "Il mio indirizzo attualmente e' " 
           + url + "  - il link permanente per utilizzarmi e' " + gridurl_indirizzo); 
   }    

}

</lsl>

second script - it listens to the first script and it changes the prim color

<lsl> default {

   state_entry()
   {
       llListen(-20241, "", "", "");  // you may need to change this, if you changed it in the first script
   }
   listen(integer chan, string name, key id, string msg)  
   {
       llSetLinkColor(-1, (vector)msg, ALL_SIDES);
   }

} </lsl>

third and fourth script - see second script and change chat channel to 20242 and 20243