fix: The gold lead between liners does not represent a difference in the items purchased

[iSergio97]

Summary

While playing a match, KC Kyeahoo has a 1.3k gold lead over Vladi, but when you are watching the items, Kyeahoo has more items than Vladi that cost more than that lead they have between both players.

At the end of the game, Kyeahoo has 5 items (plus boots) while Vladi has 3 items (+ boots) while the gold lead is 1.3k for Kyeahoo.

Reproduction steps

1. Start a new game.
2. Play a match where some laners has a gold diff between the other laner.
3. Review both player's items.

Expected behavior

When a laner has a gold lead over their opponent, that lead or advantage should correspond to the difference in items purchased

Actual behavior

The lead player has more items than the other player during that game.

Version or commit

0.1.1

Platform

Linux

Logs or screenshots

No response

Pre-flight checks

• I searched existing issues and did not find a duplicate.
• I understand a PR must wait for maintainer status:approved.
• If this involves Leaguepedia, generated data, or inherited assets, I included provenance details or explained why none are needed.

[NicoRuedaA]

🔍 Análisis de causa raíz (investigación de código)

Resumen

Confirmado. Hay tres sistemas de items desconectados entre el gold acumulado y los items visibles.

Causa raíz 1 — \lol_sim_v2.rs: items solo se compran COMPLETOS en base

Archivo: \src-tauri/src/application/lol_sim_v2/lol_sim_v2.rs:6094-6159\

\
ust
fn try_auto_buy_items(runtime: &mut RuntimeState) {
for idx in 0..runtime.champions.len() {
// SOLO compra si está en base
if !alive || !at_base || item_count >= 6 || !has_left_base_once {
continue;
}
// Busca el próximo item COMPLETO del plan
// champion.gold -= buy_cost;
// champion.items.push(next_item.key);
}
}
\\

No hay items componentes (Long Sword, Cloth Armor, etc.). Solo items completos. Si tenés gold lead pero estás a 200 gold del próximo item completo, esa ventaja no se refleja en poder de pelea.

Causa raíz 2 — \macro_ai.rs: recall solo por item completo

Archivo: \src-tauri/src/application/lol_sim_v2/macro_ai.rs:456-459\

\
ust
if champion_can_afford_next_item(champion) {
start_recall(champion, now, champions, minions, structures);
return;
}
\\

El AI hace recall solo si tiene gold para el próximo item completo. No hay recall parcial por componentes.

Causa raíz 3 — Engine v1: \item_tier\ simplificación burda

Archivo: \src-tauri/crates/engine/src/live_match/lol_map.rs:1052\

\
ust
unit.item_tier = ((unit.gold / 1450.0).floor() as u8).min(6);
\\

El tier del item es gold total / 1450, sin items reales. Es una aproximación lineal que no refleja la progresión real de items en LoL (donde los primeros items son más baratos y los últimos más caros).

Solución propuesta

1. Corto plazo: En \ ry_auto_buy_items(), si no alcanza para el próximo item completo, permitir comprar items componentes de menor costo (400-1300 gold).
2. Largo plazo: Implementar sistema de componentes (Long Sword → item final). \item_power\ = suma de componentes acumulados, no cantidad de items completos.
3. En engine v1: reemplazar \loor(gold/1450)\ con función más granular (ej: cada 500 gold = componente).

---

Investigación realizada el 2026-05-02 sobre el código fuente del proyecto.

[108M]

working on this

[TtvNekix]

Solved - #330