// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Texture offset jog menu
// Not compiled or tested in-world
// Setup: Set FACE on a spare classic diffuse-textured prim. Owner-touch; Restore restores the entire captured diffuse rule.
// Stop / restore: Use the Restore or Home action described in setup before removing or resetting if you want the startup appearance. Menu listeners expire after 45 seconds.
// Notes: Local owner-only control. Saved snapshots live in script memory and are lost on reset. Uses readable texture settings. Offsets are normalized/wrapped into the valid -1 to 1 range. Does not edit PBR-specific transforms.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Not compiled or tested in-world.
integer channel;
integer handle;
close()
{
    if(handle)llListenRemove(handle);
    handle=0;
    llSetTimerEvent(0.0);
}
menu(string prompt,list buttons)
{
    if(!handle)
    {
        channel=-1000-(integer)llFrand(1000000.0);
        handle=llListen(channel,"",llGetOwner(),"");
    }
    llDialog(llGetOwner(),prompt,buttons,channel);
    llSetTimerEvent(45.0);
}
integer FACE=0;
list saved;
init()
{
    saved=llGetLinkPrimitiveParams(LINK_THIS,[PRIM_TEXTURE,FACE]);
}
show()
{
    menu("Diffuse UV offset: 0.05 steps",["Left","Right","Up","Down","Center","Restore"]);
}
choose(string s)
{
    if(s=="Restore")
    {
        llSetLinkPrimitiveParamsFast(LINK_THIS,[PRIM_TEXTURE,FACE]+saved);
        show();
        return;
    }
    list rule=llGetLinkPrimitiveParams(LINK_THIS,[PRIM_TEXTURE,FACE]);
    vector p=llList2Vector(rule,2);
    if(s=="Left")p.x-=0.05;
    else if(s=="Right")p.x+=0.05;
    else if(s=="Up")p.y+=0.05;
    else if(s=="Down")p.y-=0.05;
    else if(s=="Center")p=ZERO_VECTOR;
    else return;
    if(p.x>1.0)p.x-=2.0;
    if(p.x< -1.0)p.x+=2.0;
    if(p.y>1.0)p.y-=2.0;
    if(p.y< -1.0)p.y+=2.0;
    llSetLinkPrimitiveParamsFast(LINK_THIS,[PRIM_TEXTURE,FACE]+llListReplaceList(rule,[p],2,2));
    show();
}
default
{
    state_entry()
    {
        init();
    }
    touch_start(integer n)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        close();
        show();
    }
    listen(integer ch,string name,key id,string message)
    {
        if(!handle||ch!=channel||id!=llGetOwner())return;
        choose(message);
    }
    timer()
    {
        close();
    }
    changed(integer change)
    {
        if(change&CHANGED_OWNER)llResetScript();
    }
}