// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Normalize nonnegative blend weights
// Not compiled or tested in-world
// Setup: Place in a spare owned prim. Set raw float WEIGHTS with at least one positive value. Touch to run; output is private to the owner.
// Stop / restore: Disable/remove. No scene changes or external calls.
// Notes: This is clamp-and-renormalize, not Euclidean projection onto a simplex. The title describes normalization; negative contributions are intentionally discarded.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT.
list WEIGHTS=[0.6,-0.2,1.4,0.3];
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        list cleaned;
        float total;
        integer i;
        for(i=0;i<llGetListLength(WEIGHTS);++i)
        {
            float w=llList2Float(WEIGHTS,i);
            if(w<0.0)w=0.0;
            cleaned+=[w];
            total+=w;
        }
        if(total<=0.0)
        {
            llOwnerSay("At least one positive weight required.");
            return;
        }
        list normalized;
        for(i=0;i<llGetListLength(cleaned);++i)normalized+=[llList2Float(cleaned,i)/total];
        llOwnerSay("Convex weights="+llDumpList2String(normalized,","));
    }
}