Difference between revisions of "HTML HUD Demo"

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m (more linebreaks for better readability)
m (added texture ratio fix)
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//    licensed by their respective owners under their own respective copyright
//    licensed by their respective owners under their own respective copyright
//    and other licenses.
//    and other licenses.


key    owner;
key    owner;
Line 50: Line 49:
string  exceptions;
string  exceptions;


// user-function: init
// user-function: init
// - does not return anything
// - does not return anything
// - sets initial variable values
// - sets initial variable values
// - sets object's name and textures
// - sets object's name and textures
// - request a url to use the HUD
// - request a url to use the HUD


init()
init()
Line 64: Line 63:
     video_url = "http://www.youtube.com/embed/m7p9IEpPu-c?rel=0";
     video_url = "http://www.youtube.com/embed/m7p9IEpPu-c?rel=0";


    //header set in set_link_media(url)
// header set in set_link_media(url)
    //footer set in set_link_media(url)
// footer set in set_link_media(url)
 
    float  FLOAT_FALSE      = 0.0;
    vector  RATIO_ONE_BY_ONE = <0.98, 0.98, 0.00>;//  fix Second Life ... or try to!


     llSetLinkPrimitiveParamsFast(LINK_THIS, [
     llSetLinkPrimitiveParamsFast(LINK_THIS, [
         PRIM_TEXTURE, ALL_SIDES, TEXTURE_BLANK, <1.0, 1.0, 0.0>, ZERO_VECTOR, (float)FALSE,
         PRIM_TEXTURE, ALL_SIDES, TEXTURE_BLANK,                         RATIO_ONE_BY_ONE, ZERO_VECTOR, FLOAT_FALSE,
         PRIM_TEXTURE, 2, "0b815b79-c8f5-fc98-91fc-e77b53a468e2", <1.0, 1.0, 0.0>, ZERO_VECTOR, (float)FALSE]);
         PRIM_TEXTURE, 2,         "0b815b79-c8f5-fc98-91fc-e77b53a468e2", RATIO_ONE_BY_ONE, ZERO_VECTOR, FLOAT_FALSE]);


     toggle_visibility_of_HUD_button();
     toggle_visibility_of_HUD_button();
Line 75: Line 77:
}
}


// user-function: toggle_visibility_of_HUD_button
// user-function: toggle_visibility_of_HUD_button
// - does not return anything
// - does not return anything
// - toggle the visibility of the prim
// - toggle the visibility of the prim
// - will rotate, position and scale the prim
// - will rotate, position and scale the prim


toggle_visibility_of_HUD_button()
toggle_visibility_of_HUD_button()
Line 100: Line 102:
}
}


// user-function: request url
// user-function: request url
// - does not return anything
// - does not return anything
// - make sure we drop the old url before requesting a new one
// - make sure we drop the old url before requesting a new one


request_url()
request_url()
{
{
     llReleaseURL(url);
     llReleaseURL(url);
    url = "";
     llRequestURL();
     llRequestURL();
}
}


// user-function: set_link_media
// user-function: set_link_media
// - does not return anything
// - does not return anything
// - set the values for the string variables 'header' and 'footer'
// - set the values for the string variables 'header' and 'footer'
// - prepare face 4 for media on a prim
// - prepare face 4 for media on a prim


set_link_media(string scriptUrl)
set_link_media(string scriptUrl)
Line 140: Line 144:
}
}


// user-function:
// user-function:
// - does not return anything
// - does not return anything
// - used if there's not a request to the homepage of our website
// - used if there's not a request to the homepage of our website
// - check where on the site we are and prepare variables for the response
// - check where on the site we are and prepare variables for the response


http_get(key requestID, list path)
http_get(key requestID, list path)
Line 237: Line 241:
                 }
                 }


                //because: var,val,&,var,val,&,...
//             because: var, val, &, var, val, &, ...
                 index += 3;
                 index += 3;
             }
             }
Line 251: Line 255:
}
}


// user-function: prepare_profile_overview_page
// user-function: prepare_profile_overview_page
// - does not return anything
// - does not return anything
// - prepares a response for a page with information about a certain avatar
// - prepares a response for a page with information about a certain avatar
// - includes profile thumbnail, name, script info, give menu
// - includes profile thumbnail, name, script info, give menu


prepare_profile_overview_page(key requestID, key id)
prepare_profile_overview_page(key requestID, key id)
Line 282: Line 286:
}
}


// user-function: html_body_with_formatted_avatar_name
// user-function: html_body_with_formatted_avatar_name
// - returns the name of the avatar in html format
// - returns the name of the avatar in html format
// - removes the lastname if it is Resident
// - removes the lastname if it is Resident
// - adds a line-break for long names
// - adds a line-break for long names


string html_body_with_formatted_avatar_name(key id)
string html_body_with_formatted_avatar_name(key id)
Line 306: Line 310:
}
}


// user-function: html_body_with_links_for_interaction_with_certain_avatar
// user-function: html_body_with_links_for_interaction_with_certain_avatar
// - returns html text with links for an avatar to interact with who has a certain uuid
// - returns html text with links for an avatar to interact with who has a certain uuid


string html_body_with_links_for_interaction_with_certain_avatar(key id)
string html_body_with_links_for_interaction_with_certain_avatar(key id)
Line 322: Line 326:
}
}


// user-function: html_body_with_inventory_overview_for_give_menu
// user-function: html_body_with_inventory_overview_for_give_menu
// - returns html text with inventory item lists
// - returns html text with inventory item lists


string html_body_with_inventory_overview_for_give_menu(key id)
string html_body_with_inventory_overview_for_give_menu(key id)
Line 330: Line 334:
         + "call_to_action'>Give</a><ul style='list-style-type:none;text-align:"
         + "call_to_action'>Give</a><ul style='list-style-type:none;text-align:"
         + "left;white-space:nowrap' class='menu'>";
         + "left;white-space:nowrap' class='menu'>";


     integer sizeOfStringBefore = llStringLength(stringToReturn);
     integer sizeOfStringBefore = llStringLength(stringToReturn);
Line 346: Line 349:
}
}


// user-function: bytes2str
// user-function: bytes2str
// - returns a string with script memory info in readable format
// - returns a string with script memory info in readable format


string bytes2str(integer bytes)
string bytes2str(integer bytes)
{
{
    // 1024² = 1048576
// 1024² = 1048576


     if (bytes < 1048576)
     if (bytes < 1048576)
         return (string)(bytes / 1024) + " KB";
         return (string)(bytes / 1024) + " KB";
    //else
// else
         return (string)(bytes / 1048576) + " MB";
         return (string)(bytes / 1048576) + " MB";
}
}


// user-function: html_body_avatar_profile_pic_thumbnail
// user-function: html_body_avatar_profile_pic_thumbnail
// - returns html text with urls to someone's profile pic
// - returns html text with urls to someone's profile pic


string html_body_avatar_profile_pic_thumbnail(key id)
string html_body_avatar_profile_pic_thumbnail(key id)
Line 370: Line 373:
}
}


// user-function: inventory_list_in_html_format_for_give_menu
// user-function: inventory_list_in_html_format_for_give_menu
// - returns html text with inventory item list of given type
// - returns html text with inventory item list of given type


string inventory_list_in_html_format_for_give_menu(key id, integer type)
string inventory_list_in_html_format_for_give_menu(key id, integer type)
Line 391: Line 394:
}
}


// user-function: anims_page
// user-function: anims_page
// - does not return anything
// - does not return anything
// - prepares an html text overview page of animations
// - prepares an html text overview page of animations


anims_page()
anims_page()
{
{
     responseStatus = 200;
     responseStatus = 200;
     responseBody = header + "<h1>Animations</h1><h2>Choose an animation:</h2>"
     responseBody   = header + "<h1>Animations</h1><h2>Choose an animation:</h2>"
                + "<div style='margin-left:40px'>"
                  + "<div style='margin-left:40px'>"
                + html_body_animations_overview() + "</div><br><br>" + footer;
                  + html_body_animations_overview() + "</div><br><br>" + footer;
}
}


// user-function: html_body_animations_overview
// user-function: html_body_animations_overview
// - returns html text with a list of included animations
// - returns html text with a list of included animations


string html_body_animations_overview()
string html_body_animations_overview()
Line 433: Line 436:
}
}


// user-function: play_anim
// user-function: play_anim
// - does not return anything
// - does not return anything
// - prompts a perms request to animate owner
// - prompts a perms request to animate owner


play_anim(string anim)
play_anim(string anim)
Line 443: Line 446:
}
}


// user-function: config_page
// user-function: config_page
// - does not return anything
// - does not return anything
// - prepares page to configure youtube video link
// - prepares page to configure youtube video link


config_page()
config_page()
Line 456: Line 459:
}
}


// user-function: throw_exception
// user-function: throw_exception
// - does not return anything
// - does not return anything
// - logs errors into cache for later viewing and debugging
// - logs errors into cache for later viewing and debugging


throw_exception(string inputString)
throw_exception(string inputString)
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         responseStatus = 400;
         responseStatus = 400;
         responseBody = "Unsupported method";
         responseBody   = "Unsupported method";


         if (method == URL_REQUEST_GRANTED)
         if (method == URL_REQUEST_GRANTED)
         {
         {
             responseStatus = 200;
             responseStatus = 200;
             responseBody = "OK";
             responseBody   = "OK";


             set_link_media(body);
             set_link_media(body);
Line 520: Line 523:
         {
         {
             responseStatus = 400;
             responseStatus = 400;
             responseBody = "Bad request";
             responseBody   = "Bad request";


             throw_exception("The following error occurred while attempting to "
             throw_exception("The following error occurred while attempting to "
Line 528: Line 531:
         {
         {
             responseStatus = 200;
             responseStatus = 200;
             responseBody = "GET";
             responseBody   = "GET";


             string pathInfoHeader = llGetHTTPHeader(id, "x-path-info");
             string pathInfoHeader = llGetHTTPHeader(id, "x-path-info");
Line 546: Line 549:
         }
         }


// check if doing a sensor sweep and if so don't send a response
// check if doing a sensor sweep and if so don't send a response
// but send the response in 'sensor event' or 'no_sensor event'
// but send the response in 'sensor event' or 'no_sensor event'
//
//
// (time-out 30.0 seconds for response)
// (time-out 30.0 seconds for response)


         if (sendResponseNow)
         if (sendResponseNow)
Line 572: Line 575:
         {
         {
             throw_exception("This HUD has tried to animate your avatar WITHOUT "
             throw_exception("This HUD has tried to animate your avatar WITHOUT "
                + "having the permissions to do so. You must grant this HUD "
                            + "having the permissions to do so. You must grant this HUD "
                + "permissions to animate your avatar for this feature to work.");
                            + "permissions to animate your avatar for this feature to work.");
         }
         }


Line 585: Line 588:
     {
     {
         responseStatus = 200;
         responseStatus = 200;
         responseBody = header + "<h2>Scan Results:</h2><ul style='"
         responseBody   = header + "<h2>Scan Results:</h2><ul style='"
                    + "list-style-type:circle;margin-left:20px'>";
                      + "list-style-type:circle;margin-left:20px'>";


         if (14 < num_detected)
         if (14 < num_detected)
Line 612: Line 615:
     {
     {
         responseStatus = 200;
         responseStatus = 200;
         responseBody = header + "<h2>Scan Results:</h2><ul style='"
         responseBody   = header + "<h2>Scan Results:</h2><ul style='"
                    + "list-style-type:circle;margin-left:20px'><li>No one "
                      + "list-style-type:circle;margin-left:20px'><li>No one "
                    + "near by.</li><li>Owner: <a href='agent/" + (string)owner
                      + "near by.</li><li>Owner: <a href='agent/" + (string)owner
                    + "'>" + ownerName + "</a></li></ul>" + footer;
                      + "'>" + ownerName + "</a></li></ul>" + footer;


         llSetContentType(currentRequestID, CONTENT_TYPE_HTML);
         llSetContentType(currentRequestID, CONTENT_TYPE_HTML);

Revision as of 06:05, 5 January 2014

<lsl> // Suggest a "Stop All Animations" button be added to Animations selection frame for convenience. </lsl>

screenshots

<lsl> // HTML-based, single script HUD // // original by Kelly Linden // // To use: // - create a default prim (cube) // - wear it as a HUD on top_left (script needs tweaking for other attachment points) // - edit the cube while wearing // - add animations you want to use // - add notecards and objects you want to hand out // - add this script // // License: // This script itself is free to share, modify and use without restriction. // Any linked or referenced files are not included in this license and are // licensed by their respective owners under their own respective copyright // and other licenses.

key owner; string ownerName;

string url;

key currentRequestID;

integer responseStatus; string responseBody;

list lastPath;

string video_url;

string header; string footer;

string currentAnimation;

integer isVisible;

string exceptions;

// user-function: init // - does not return anything // - sets initial variable values // - sets object's name and textures // - request a url to use the HUD

init() { 

   owner     = llGetOwner();
   ownerName = llKey2Name(owner);
   llSetObjectName(ownerName+"'s HUD");

   video_url = "http://www.youtube.com/embed/m7p9IEpPu-c?rel=0";

// header set in set_link_media(url) // footer set in set_link_media(url) 

   float   FLOAT_FALSE      = 0.0;
   vector  RATIO_ONE_BY_ONE = <0.98, 0.98, 0.00>;//  fix Second Life ... or try to!

   llSetLinkPrimitiveParamsFast(LINK_THIS, [
       PRIM_TEXTURE, ALL_SIDES, TEXTURE_BLANK,                          RATIO_ONE_BY_ONE, ZERO_VECTOR, FLOAT_FALSE,
       PRIM_TEXTURE, 2,         "0b815b79-c8f5-fc98-91fc-e77b53a468e2", RATIO_ONE_BY_ONE, ZERO_VECTOR, FLOAT_FALSE]);

   toggle_visibility_of_HUD_button();
   request_url();

}

// user-function: toggle_visibility_of_HUD_button // - does not return anything // - toggle the visibility of the prim // - will rotate, position and scale the prim

toggle_visibility_of_HUD_button() { 

   if (isVisible)
   {
       llSetLinkPrimitiveParamsFast(LINK_THIS, [
           PRIM_POS_LOCAL, <0.0, -0.13, -0.13>,
           PRIM_ROT_LOCAL, <0.0, 0.0, 0.0, 1.0>,
           PRIM_SIZE, <0.01, 0.25, 0.25>]);
   }
   else
   {
       llSetLinkPrimitiveParamsFast(LINK_THIS, [
           PRIM_POS_LOCAL, <0.0, -0.04, -0.04>,
           PRIM_ROT_LOCAL, <0.0, 0.0, -1.0, 0.0>,
           PRIM_SIZE, <0.05, 0.05, 0.05>]);
   }

   isVisible = !isVisible;

}

// user-function: request url // - does not return anything // - make sure we drop the old url before requesting a new one

request_url() { 

   llReleaseURL(url);
   url = "";

   llRequestURL();

}

// user-function: set_link_media // - does not return anything // - set the values for the string variables 'header' and 'footer' // - prepare face 4 for media on a prim

set_link_media(string scriptUrl) { 

   url = scriptUrl;

   header = "<html><head><link href='https://d1979ns0fqtj19.cloudfront.net/"
       + "assets/common-103828347986224535963905120979424958961.css'"
       + " media='all' rel='stylesheet' type='text/css' />"
       + "<base href='" + scriptUrl + "/' /></head><body>";

footer = "

" 
       + "<a href=>Scan</a> | <a href='anims'>Anims</a> | <a href='video'>"
       + "Video</a> | <a href='config'>Config</a> | <a href='hide'>Hide</a>"
+ "

<script src='https://d2mjw3k7q9u8rb.cloudfront.net/assets/" 

       + "common-170919042270376442559931151451605602726.js' type='text/"
       + "javascript'></script></body></html>";

   llSetLinkMedia(LINK_THIS, 4, [
       PRIM_MEDIA_AUTO_PLAY, TRUE,
       PRIM_MEDIA_CURRENT_URL, url,
       PRIM_MEDIA_HOME_URL, url,
       PRIM_MEDIA_HEIGHT_PIXELS, 256,
       PRIM_MEDIA_WIDTH_PIXELS, 256,
       PRIM_MEDIA_PERMS_CONTROL, PRIM_MEDIA_PERM_NONE]);

}

// user-function: // - does not return anything // - used if there's not a request to the homepage of our website // - check where on the site we are and prepare variables for the response

http_get(key requestID, list path) { 

   currentRequestID        = requestID;

   integer numOfPathsParts = llGetListLength(path);
   string firstPathPart    = llList2String(path, 0);

   if (firstPathPart == "hide")
   {
       toggle_visibility_of_HUD_button();
       http_get(requestID, lastPath);
       return;
   }

   lastPath = path;

   if (firstPathPart == "agent")
   {
       if (numOfPathsParts == 1)
       {
           prepare_profile_overview_page(requestID, owner);
           return;
       }
       else if (numOfPathsParts == 2)
       {
           key id = (key)llList2String(path, 1);
           prepare_profile_overview_page(requestID, id);
           return;
       }
       else if (numOfPathsParts == 4)
       {
           if (llList2String(path, 2) != "give")
           {
               return;
           }

           key id          = (key)llList2String(path, 1);
           string name     = llKey2Name(id);
           string itemName = llUnescapeURL(llList2String(path, 3));

           llOwnerSay("Giving '" + itemName + "' to '" + name + "'.");
           llGiveInventory(id, itemName);
           prepare_profile_overview_page(requestID, id);
           return;
       }
   }
   else if (firstPathPart == "anims")
   {
       if (numOfPathsParts == 1)
       {
           anims_page();
           return;
       }
       else if (numOfPathsParts == 2)
       {
           play_anim(llList2String(path, 1));
           anims_page();
           return;
       }
   }
   else if (firstPathPart == "video")
   {
       responseStatus = 200;
       responseBody = header + "
<iframe width='255' height='173' src='"
                    + video_url + "' frameborder='0' allowfullscreen></iframe>"
                    + footer;

       return;
   }
   else if (firstPathPart == "config")
   {
       if (numOfPathsParts == 1)
       {
           config_page();
           return;
       }
       else if (llList2String(path, 1) == "set")
       {
           string queryString = llGetHTTPHeader(requestID, "x-query-string");
           list args          = llParseString2List(queryString, ["="], ["&"]);

           integer index      = -llGetListLength(args);
           while (index)
           {
               string variable = llList2String(args, index);
               string value    = llUnescapeURL(llList2String(args, index + 1));

               if (variable == "video")
               {
                   video_url = value;
               }

// because: var, val, &, var, val, &, ... 

               index += 3;
           }
           config_page();
       }
   }

   responseStatus = 404;

responseBody = header + "

404 Page Not Found.

" + footer; 

   throw_exception("There has been a HTTP-request to a non-existant page on "
                   + "your HUD's website. Please check the path of the request "
                   + "for mistakes.");

}

// user-function: prepare_profile_overview_page // - does not return anything // - prepares a response for a page with information about a certain avatar // - includes profile thumbnail, name, script info, give menu

prepare_profile_overview_page(key requestID, key id) { 

   list avatarDetails = llGetObjectDetails(id, [
                                   OBJECT_POS, OBJECT_TOTAL_SCRIPT_COUNT,
                                   OBJECT_SCRIPT_MEMORY, OBJECT_SCRIPT_TIME]);

   responseStatus = 200;

responseBody = header + "

" + "

" + html_body_with_formatted_avatar_name(id) + "

" + llGetUsername(id) + "

" + "
" 
                + html_body_with_links_for_interaction_with_certain_avatar(id)
                + "
" + html_body_with_inventory_overview_for_give_menu(id)
+ "
" 
                + html_body_avatar_profile_pic_thumbnail(id)
+ "
    " + "
  • Scripts:
    • " + (string)llList2Integer(avatarDetails, 1) + " total
    • " + bytes2str(llList2Integer(avatarDetails, 2)) + "
    • " + (string)((integer)(llList2Float(avatarDetails, 3) * 1000000.0)) + "us

" + footer;

}

// user-function: html_body_with_formatted_avatar_name // - returns the name of the avatar in html format // - removes the lastname if it is Resident // - adds a line-break for long names

string html_body_with_formatted_avatar_name(key id) { 

   string stringToReturn = llKey2Name(id);

   if (llGetSubString(stringToReturn, -9, -1) == " Resident")
   {
       stringToReturn = llDeleteSubString(stringToReturn, -9, -1);
   }
   if (15 < llStringLength(stringToReturn))
   {
       stringToReturn = llDumpList2String(
                           llParseString2List(stringToReturn,[" "], []),
                           "
"
                        );
   }

   return stringToReturn;

}

// user-function: html_body_with_links_for_interaction_with_certain_avatar // - returns html text with links for an avatar to interact with who has a certain uuid

string html_body_with_links_for_interaction_with_certain_avatar(key id) {

return "

<a class='button call_to_action'>Options" + "</a>

";

}

// user-function: html_body_with_inventory_overview_for_give_menu // - returns html text with inventory item lists

string html_body_with_inventory_overview_for_give_menu(key id) {

string stringToReturn = "

<a class='button " + "call_to_action'>Give</a>
    "; integer sizeOfStringBefore = llStringLength(stringToReturn); stringToReturn += inventory_list_in_html_format_for_give_menu(id, INVENTORY_NOTECARD); stringToReturn += inventory_list_in_html_format_for_give_menu(id, INVENTORY_OBJECT); if (llStringLength(stringToReturn) == sizeOfStringBefore) { stringToReturn += "
  • (no objects or notecards found)
    • "; } stringToReturn += "

"; 

   return stringToReturn;

}

// user-function: bytes2str // - returns a string with script memory info in readable format

string bytes2str(integer bytes) { // 1024² = 1048576 

   if (bytes < 1048576)
       return (string)(bytes / 1024) + " KB";

// else 

       return (string)(bytes / 1048576) + " MB";

}

// user-function: html_body_avatar_profile_pic_thumbnail // - returns html text with urls to someone's profile pic

string html_body_avatar_profile_pic_thumbnail(key id) { 

   return "<a href='secondlife:///app/agent/" + (string)id + "/about' class='"
       + "avatar avatar_thumb' rel='#sl_image_zoom' title='Click to zoom'"
       + "<img alt='Thumb_sl_image' src='https://my-secondlife.s3.amazonaws"
       + ".com/users/" + llGetUsername(id) + "/sl_image.png' /></a>";

}

// user-function: inventory_list_in_html_format_for_give_menu // - returns html text with inventory item list of given type

string inventory_list_in_html_format_for_give_menu(key id, integer type) { 

   string stringToReturn;

   integer index = llGetInventoryNumber(type);
   while (index)
   {
       --index;

       string name = llGetInventoryName(type, index);

stringToReturn += "

  • <a href='agent/" + (string)id + "/give/" + name + "'>" + name + "</a>

    • "; } return stringToReturn; } // user-function: anims_page // - does not return anything // - prepares an html text overview page of animations anims_page() { responseStatus = 200; responseBody = header + "

    Animations

    Choose an animation:

    " + "

    " + html_body_animations_overview() + "



    " + footer;

    }

    // user-function: html_body_animations_overview // - returns html text with a list of included animations

    string html_body_animations_overview() {

    string stringToReturn = "

    " + "<a class='button call_to_action'>Animate </a>
      "; integer index = llGetInventoryNumber(INVENTORY_ANIMATION); if (!index) { stringToReturn += "
    • (no animations found)
      • "; } else while (index) { --index; string name = llGetInventoryName(INVENTORY_ANIMATION, index); stringToReturn += "
    • <a href='anims/" + name + "'>" + name + "</a>
      • "; } stringToReturn += "

    "; 

       return stringToReturn;

    }

    // user-function: play_anim // - does not return anything // - prompts a perms request to animate owner

    play_anim(string anim) { 

       llRequestPermissions(owner, PERMISSION_TRIGGER_ANIMATION);
   currentAnimation = llUnescapeURL(anim);

    }

    // user-function: config_page // - does not return anything // - prepares page to configure youtube video link

    config_page() { 

       responseStatus = 200;

    responseBody = header + "

    Options:

    <form action='config/set' method='" 

                    + "get'>Video URL: <input type='text' name='video' value='"
                + video_url + "' /><input type='submit' value='Set' /></form>"
                + footer;

    }

    // user-function: throw_exception // - does not return anything // - logs errors into cache for later viewing and debugging

    throw_exception(string inputString) { 

       if (exceptions == "")
   {
       exceptions = "The following un-handled exception(s) occurred that are "
                  + "preventing this device's operation:\n";
   }

       exceptions += "\t"+inputString+"\n";

    }

    default { 

       on_rez(integer start_param)
   {
       llReleaseURL(url);
       llResetScript();
   }

       changed(integer change)
   {
       if (change & (CHANGED_OWNER | CHANGED_INVENTORY))
       {
           llReleaseURL(url);
           llResetScript();
       }

           if (change & (CHANGED_REGION | CHANGED_REGION_START | CHANGED_TELEPORT))
       {
           request_url();
       }
   }

       state_entry()
   {
       init();
   }

       touch_start(integer num_detected)
   {
       toggle_visibility_of_HUD_button();
   }

       http_request(key id, string method, string body)
   {
       integer sendResponseNow = TRUE;

           responseStatus = 400;
       responseBody   = "Unsupported method";

           if (method == URL_REQUEST_GRANTED)
       {
           responseStatus = 200;
           responseBody   = "OK";

               set_link_media(body);
       }
       else if (method == URL_REQUEST_DENIED)
       {
           responseStatus = 400;
           responseBody   = "Bad request";

               throw_exception("The following error occurred while attempting to "
                           + "get a free URL for this device:\n \n" + body);
       }
       else if (method == "GET")
       {
           responseStatus = 200;
           responseBody   = "GET";

               string pathInfoHeader = llGetHTTPHeader(id, "x-path-info");
           list path             = llParseString2List(pathInfoHeader, ["/"], []);

               if (path == [])
           {
               sendResponseNow = FALSE;
               currentRequestID = id;
               llSensor("", NULL_KEY, AGENT_BY_LEGACY_NAME, 96.0, PI);
               lastPath = [];
           }
           else
           {
               http_get(id, path);
           }
       }

    // check if doing a sensor sweep and if so don't send a response // but send the response in 'sensor event' or 'no_sensor event' // // (time-out 30.0 seconds for response) 

           if (sendResponseNow)
       {
           llSetContentType(id, CONTENT_TYPE_HTML);
           llHTTPResponse(id, responseStatus, responseBody);
       }

           if (exceptions != "")
       {
           state error;
       }
   }

       run_time_permissions(integer perm)
   {
       if (perm & PERMISSION_TRIGGER_ANIMATION)
       {
           llStartAnimation(currentAnimation);
       }
       else
       {
           throw_exception("This HUD has tried to animate your avatar WITHOUT "
                           + "having the permissions to do so. You must grant this HUD "
                           + "permissions to animate your avatar for this feature to work.");
       }

           if (exceptions != "")
       {
           state error;
       }
   }

       sensor(integer num_detected)
   {
       responseStatus = 200;

    responseBody = header + "

    Scan Results:

      "; 
             if (14 < num_detected)
       {
           num_detected = 14;
       }

             while (num_detected)
       {
           --num_detected;

                 key id = llDetectedKey(num_detected);
      responseBody += "
    • <a href='agent/" + (string)id + "'>" + html_body_with_formatted_avatar_name(id) + "</a>
      • "; } responseBody += "

    " + footer; 

           llSetContentType(currentRequestID, CONTENT_TYPE_HTML);
       llHTTPResponse(currentRequestID, responseStatus, responseBody);
   }

       no_sensor()
   {
       responseStatus = 200;

    responseBody = header + "

    Scan Results:

    • No one " + "near by.
    • Owner: <a href='agent/" + (string)owner + "'>" + ownerName + "</a>

    " + footer; 

           llSetContentType(currentRequestID, CONTENT_TYPE_HTML);
       llHTTPResponse(currentRequestID, responseStatus, responseBody);
   }

       state_exit()
   {
       llReleaseURL(url);
   }

    }

    state error { 

       on_rez(integer start_param)
   {
       llResetScript();
   }

       changed(integer change)
   {
       if (change & (CHANGED_OWNER | CHANGED_INVENTORY))
       {
           llResetScript();
       }
   }

       state_entry()
   {
       llOwnerSay("========== ERROR REPORT START ==========");
       llOwnerSay(exceptions);
       llOwnerSay("========== ERROR REPORT END ==========");
       llOwnerSay("Resetting now...");
       llResetScript();
   }

    } </lsl>

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