// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Texture orientation preview
// Not compiled or tested in-world
// Setup: Set FACE and use an original texture you can read and restore. The script captures its texture and UV settings. Owner-touch cycles four orientations.
// Stop / restore: After the fourth touch the original UV rotation is restored. Remove or reset only then.
// Notes: Changes classic diffuse UV rotation. A PBR material has separate texture transforms.
// License: see LICENSE in this distribution.
// Original Incoprea example. MIT. Not compiled or tested in-world.
integer FACE = 0;
integer step;
list original;
default
{
    state_entry()
    {
        original = llGetLinkPrimitiveParams(LINK_THIS, [PRIM_TEXTURE, FACE]);
    }
    touch_start(integer count)
    {
        if (llDetectedKey(0) != llGetOwner()) return;
        step = (step + 1) % 4;
        list settings = llListReplaceList(original, [llList2Float(original, 3) + step * PI_BY_TWO], 3, 3);
        llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_TEXTURE, FACE] + settings);
        if (!step) llOwnerSay("Original texture rotation restored.");
    }
}