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Menu by JSON structure


Dora Gustafson
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I sense that multi paged menus is a hot subject so here is another approach
It uses a JSON structure to decode and navigate more menu pages with little or no number indexes
Actually it was Innula Zenowka who came up with the idea when JSON was introduced in LSL

Here is a working script example with menu by JSON structure

JSON structure facial expression in the wiki

It is right here as well:

The script has 19 facial expressions that can be chosen from a menu

The expressions can also be chosen by random and they can be played in a loop
The script can be used in a pose ball or in an attached (HUD)prim
When used for a pose ball the camera position is saved for next session

The script features a JSON structured dialog-menu

In this case the menu has one main page and three child pages
The power of JSON shows where the menu is decoded and in the navigation between menus. See the first lines in the listen event handler
// Pose ball and facial expressions, script by Dora Gustafson, Studio Dora 2012
// build on Basic pose ball script. by Dora Gustafson, Studio Dora 2010
// v1.00 Has 10 facial expressions that can be chosen from a menu, chosen by random,
// ... looped, has menu reopen and saves camera position
// v1.01 wearable. Sit on or attach
// v1.02 JSON structured dialog-menu with all 19 facial expressions

// Define all menu names and menu button lay-outs
string mDisa = "Disapproval";
list LDisa = ["Home","Open mouth","Disdain","Frown","Tongue out","Anger","Bored"];
string mChee = "Cheerful";
list LChee = ["Home","Kiss","Smile","Toothsmile","Laugh","Surprise","Wink"];
string mMis = "Miserable";
list LMis = ["Home","Worry","Afraid","Sad","Cry","Embarrassed","Repulsed","Shrug"];
string mHom = "Home";
list LHom = ["Cheerful","Miserable","Disapproval","Loop","Random"];

// strided list coupler button name and animation name. The order of strides doesn't matter
list coupling = [ "Afraid", "express_afraid_emote",
                 "Anger", "express_anger_emote",
                 "Bored", "express_bored_emote",
                 "Cry", "express_cry_emote",
                 "Disdain", "express_disdain",
                 "Embarrassed", "express_embarrassed_emote",
                 "Frown", "express_frown",
                 "Kiss", "express_kiss",
                 "Laugh", "express_laugh_emote",
                 "Open mouth", "express_open_mouth",
                 "Repulsed", "express_repulsed_emote",
                 "Sad", "express_sad_emote",
                 "Shrug", "express_shrug_emote",
                 "Smile", "express_smile",
                 "Surprise", "express_surprise_emote",
                 "Tongue out", "express_tongue_out",
                 "Toothsmile", "express_toothsmile",
                 "Wink", "express_wink_emote",
                 "Worry", "express_worry_emote" ];

string JSONMenu;
list BUTTONS;
key sitter;
integer dialogChanal=-532247677;
integer haandtag;
string menuHead;
integer act=0;
string Fanim = "stand";

default
{
    state_entry()
    {
        string s1 = llList2Json( JSON_ARRAY, LDisa);
        string s2 = llList2Json( JSON_ARRAY, LChee);
        string s3 = llList2Json( JSON_ARRAY, LMis);
        string s4 = llList2Json( JSON_ARRAY, LHom);
        JSONMenu = llList2Json( JSON_OBJECT, [mDisa, s1, mChee, s2, mMis, s3, mHom, s4]+coupling);
        BUTTONS = LHom ;
        llSitTarget( <0.0, 0.0, 1.0>, ZERO_ROTATION );
        llSetSitText("Animate");
        llSetClickAction(CLICK_ACTION_SIT);
    }
    attach(key id)
    {
        menuHead = llGetScriptName( )+"\nMemory in use: "+(string)llGetUsedMemory()+"\n\nChoose any of 19 facial expressions";
        llSetClickAction(CLICK_ACTION_TOUCH);
        llSetTimerEvent( 0.0 );
        act = 0;
        if (id)
        {
            sitter = id;
            llRequestPermissions( sitter , PERMISSION_TRIGGER_ANIMATION);
        }
        else llListenRemove( haandtag);
    }
    changed(integer change)
    {
        menuHead = llGetScriptName( )+"\nMemory in use: "+(string)llGetUsedMemory()+"\n\n[Page Down] reopens this Dialog Menu\n\nChoose any of 19 facial expressions";
        llSetTimerEvent( 0.0 );
        act = 0;
        if (change & CHANGED_LINK)
        {
            sitter = llAvatarOnSitTarget() ;
            if(sitter != NULL_KEY) llRequestPermissions( sitter , PERMISSION_TRIGGER_ANIMATION | PERMISSION_TAKE_CONTROLS | PERMISSION_TRACK_CAMERA);
            else
            {
                if (llGetPermissions() & PERMISSION_TRIGGER_ANIMATION) llStopAnimation(Fanim);
                llSetAlpha(1.0, ALL_SIDES); // show prim
                llListenRemove( haandtag);
            }
        }
    }
    run_time_permissions(integer perm)
    {
        if ( (perm & PERMISSION_TRIGGER_ANIMATION) && (llAvatarOnSitTarget() != NULL_KEY) )
        {
            llSetAlpha(0.0, ALL_SIDES); // hide prim
            llStartAnimation(Fanim);
            llStopAnimation("sit");
        }
        if ( perm & PERMISSION_TAKE_CONTROLS )
        {
            llTakeControls( CONTROL_DOWN , TRUE, TRUE);
            llListenRemove( haandtag);
            haandtag = llListen( dialogChanal, "", sitter, "");
            llDialog( sitter, menuHead, BUTTONS, dialogChanal);
        }
    }
    touch_end( integer num )
    {
        if ( llDetectedKey(0) == sitter )
        {
            llListenRemove( haandtag);
            haandtag = llListen( dialogChanal, "", sitter, "");
            llDialog( sitter, menuHead, BUTTONS, dialogChanal);
        }
    }
    control(key id, integer down, integer new)
    {
        if ( down & new & CONTROL_DOWN ) llDialog( sitter, menuHead, BUTTONS, dialogChanal);
    }
    listen( integer channel, string name, key id, string message)
    {
        if ( JSON_ARRAY == llJsonValueType( JSONMenu, [message])) BUTTONS = llParseString2List( llJsonGetValue( JSONMenu, [message]),[",","[","]","\""],[]);
        else
        {
            if ( JSON_STRING == llJsonValueType( JSONMenu, [message])) Fanim = llJsonGetValue( JSONMenu, [message]);
            else if ( "Loop" == message )
            {
                act = act ^ 1;
                if ( act & 1 ) llSetTimerEvent( 3.0 );
                else llSetTimerEvent( 0.0 );
            }
            else if ( "Random" == message )
            {
                Fanim = llList2String( llListRandomize( coupling, 2), 1);
                act = act ^ 2;
            }
            if ( llGetPermissions() & PERMISSION_TRIGGER_ANIMATION) llStartAnimation( Fanim);
        }
        llDialog( sitter, menuHead, BUTTONS, dialogChanal);
        if( llGetPermissions() & PERMISSION_TRACK_CAMERA)
        {
            rotation cam_rot=llGetCameraRot()/llGetRot(); // relative camera rotation
            vector cam_pos=(llGetCameraPos()-llGetPos())/llGetRot(); // relative camera position
            llSetLinkCamera( LINK_THIS, cam_pos, cam_pos + llRot2Fwd(cam_rot));
        }
    }
    timer()
    {
         if ( act & 2 ) Fanim = llList2String( llListRandomize( coupling, 2), 1);
         if ( llGetPermissions() & PERMISSION_TRIGGER_ANIMATION) llStartAnimation( Fanim);
    }
}

 

 

 

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