// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Prim section-slice preview
// Not compiled or tested in-world
// Setup: Use a nonphysical ordinary box, cylinder or prism. Owner-touch toggles its slice from startup to the lower half.
// Stop / restore: Owner-touch again to restore the startup snapshot before removal or reset, unless setup describes a different cycle. Do not relink during a preview.
// Notes: Use a spare modifiable build. Saved state lives only in script memory. Shape and collision geometry change; mesh objects do not use the same slicing behavior. Verify on a copy first.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Not compiled or tested in-world.
integer preview;
list saved;
default
{
    state_entry()
    {
        saved=llGetLinkPrimitiveParams(LINK_THIS,[PRIM_SLICE]);
    }
    touch_start(integer n)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(llGetStatus(STATUS_PHYSICS))return;
        integer type=llList2Integer(llGetLinkPrimitiveParams(LINK_THIS,[PRIM_TYPE]),0);
        if(type!=PRIM_TYPE_BOX&&type!=PRIM_TYPE_CYLINDER&&type!=PRIM_TYPE_PRISM)return;
        preview=!preview;
        if(preview)
        {
            llSetLinkPrimitiveParamsFast(LINK_THIS,[PRIM_SLICE,<0.0,0.5,0.0>]);
        }
        else
        {
            llSetLinkPrimitiveParamsFast(LINK_THIS,[PRIM_SLICE]+saved);
        }
    }
}