// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Touch-sampled radial menu sectors
// Not compiled or tested in-world
// Setup: Put in a spare ordinary cube you own. Touch different places on one face to sample the procedural pattern at live surface coordinates. Edit the constants to design a pattern.
// Stop / restore: Disable/remove. Only private owner messages are produced; no texture or tint is applied.
// Notes: Sector zero starts along positiveS; numbering advances counterclockwise in surface coordinates. Surface coordinates depend on the viewer and mesh; ordinary prim faces are the clearest test surface.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Live surface-coordinate sampler.
integer SECTORS=8;
float DEAD_RADIUS=0.15;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        vector uv=llDetectedTouchST(0);
        if(llDetectedTouchFace(0)<0||uv==TOUCH_INVALID_TEXCOORD)
        {
            llOwnerSay("Surface coordinates unavailable.");
            return;
        }
        vector p=2.0*uv-<1.0,1.0,0.0>;
        if(SECTORS<1||SECTORS>32||DEAD_RADIUS<0.0)
        {
            llOwnerSay("Invalid radial settings.");
            return;
        }
        if(llSqrt(p.x*p.x+p.y*p.y)<DEAD_RADIUS)
        {
            llOwnerSay("Inside center dead zone.");
            return;
        }
        float phase=llAtan2(p.y,p.x)/TWO_PI;
        phase-=llFloor(phase);
        integer sector=llFloor(phase*SECTORS);
        llOwnerSay("Sector="+(string)sector);
    }
}