// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Relative touch dial
// Not compiled or tested in-world
// Setup: Set FACE on a flat circular or square control pad. Owner-touch away from its center.
// Stop / restore: Remove/disable. It changes no setting.
// Notes: Returns degrees 0–360 measured counterclockwise from surface +S. The central dead zone avoids unstable angles.
// 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 p=llDetectedTouchST(0);
        if(p.x<0.0||p.y<0.0)return;
        p-=<0.5,0.5,0.0>;
        if(llVecMag(p)<0.1)return;
        float degrees=llAtan2(p.y,p.x)*RAD_TO_DEG;
        if(degrees<0.0)degrees+=360.0;
        llOwnerSay("Dial "+(string)llRound(degrees)+" degrees");
        llMessageLinked(LINK_ALL_OTHERS,7845,(string)degrees,NULL_KEY);
    }
}