// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Compare orientations of two clicked components
// Not compiled or tested in-world
// Setup: Put in a spare owned prim or linkset root. Touch the face or component to inspect. Child scripts may consume touches; face-based tools require a viewer that supplies touched-face data.
// Stop / restore: Remove/disable. Inspectors read state and report only to the owner; they do not change the build.
// Notes: The first click is the reference; the next click reports minimum angular difference. Clicking again starts a new pair. Root is excluded.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Owner-only live inspection.
integer pending;
rotation reference;
integer referenceLink;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        integer link=llDetectedLinkNumber(0);
        if(link==0)link=LINK_THIS;
        integer face=llDetectedTouchFace(0);
        if(link<2)
        {
            llOwnerSay("Touch a linked child.");
            return;
        }
        rotation r=llList2Rot(llGetLinkPrimitiveParams(link,[PRIM_ROT_LOCAL]),0);
        if(!pending)
        {
            reference=r;
            referenceLink=link;
            pending=TRUE;
            llOwnerSay("Reference child recorded; touch comparison child.");
            return;
        }
        pending=FALSE;
        llOwnerSay("Children "+(string)referenceLink+" / "+(string)link+" minimum rotation difference="+(string)(llAngleBetween(reference,r)*RAD_TO_DEG));
    }
}