// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Four-zone touch panel
// Not compiled or tested in-world
// Setup: Set FACE. Owner-touch a quadrant; owner chat names the action and link code 7844 carries it to optional receivers.
// Stop / restore: Remove or disable; no stored properties change.
// Notes: Uses ST coordinates and four named commands. Receivers should validate the code and sender rather than trusting all link messages.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Not compiled or tested in-world.
integer FACE=0;
default
{
    touch_start(integer n)
    {
        if(llDetectedKey(0)!=llGetOwner()||llDetectedTouchFace(0)!=FACE)return;
        vector st=llDetectedTouchST(0);
        if(st.x<0.0||st.y<0.0||st.x>1.0||st.y>1.0)return;
        string action="Back";
        if(st.x>=0.5)action="Next";
        if(st.y>=0.5)
        {
            action="Stop";
            if(st.x>=0.5)action="Start";
        }
        llOwnerSay(action);
        llMessageLinked(LINK_ALL_OTHERS,7844,action,NULL_KEY);
    }
}