From 1291c52346132e09de79a63b7e5daff6e1192612 Mon Sep 17 00:00:00 2001
From: gahusb <bgg8988@gmail.com>
Date: Mon, 29 Jun 2026 18:50:22 +0900
Subject: [PATCH] =?UTF-8?q?fix(balance):=20=EC=8B=9C=EB=AE=AC=20enemyStren?=
 =?UTF-8?q?gthLoss=EB=A5=BC=20=EC=9D=8C=EC=88=98=20=ED=9E=98=20=ED=97=88?=
 =?UTF-8?q?=EC=9A=A9=EC=9C=BC=EB=A1=9C=20(Lua=20=EB=8F=99=EA=B8=B0?=
 =?UTF-8?q?=ED=99=94)?=
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PiercingWail(귀를 찢는 비명: 모든 적 힘 -6)에서 Lua는 적 공격을
(value+str-loss, 0클램프)로 줄여 StS처럼 힘이 음수로 작동하는데,
JS 시뮬은 max(0, str-loss)로 힘을 0에서 클램프해 모든 적 str=0일 때
공격이 전혀 안 줄었다(게임 -6, 시뮬 -0). 기존 테스트는 str>=loss
구간만 봐서 못 잡음.

Lua가 정답(게임은 정상) — 시뮬만 수정. calcEnemyAttack의 max(0,...)
제거(음수 힘 허용, 최종 calcAttack이 0클램프) + EnemyActStep을 그
헬퍼로 통일(중복 제거). RED-GREEN 테스트로 loss>str 구간 검증. 86개.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UUvHKjrt8jqLzDeCsRRGmj
---
 tools/balance/sim-balance.mjs      | 5 +++--
 tools/balance/sim-balance.test.mjs | 7 +++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/balance/sim-balance.mjs b/tools/balance/sim-balance.mjs
index 3cd2b2b..c783ac6 100644
--- a/tools/balance/sim-balance.mjs
+++ b/tools/balance/sim-balance.mjs
@@ -55,7 +55,8 @@ export function calcAttack(base, str, weak, vulnOnTarget) {
 }
 
 export function calcEnemyAttack(base, str, weak, vulnOnTarget, strengthLoss = 0) {
-  return calcAttack(base, Math.max(0, str - strengthLoss), weak, vulnOnTarget);
+  // Lua EnemyActStep 동기화: 힘 손실은 (value+str) 전체에서 차감(음수 힘 허용), 최종 calcAttack이 0 클램프.
+  return calcAttack(base, str - strengthLoss, weak, vulnOnTarget);
 }
 
 // 방어 우선 차감 후 hp 적용 → { hp, block }
@@ -721,7 +722,7 @@ export function simulateCombat(data, rng, stats) {
       const it = m.intents.length ? m.intents[Math.floor(rng() * m.intents.length)] : null;
       if (it) {
         if (it.kind === 'Attack') {
-          const atk = calcAttack(it.value, Math.max(0, m.str - enemyStrengthLossThisTurn), m.weak, pVuln);
+          const atk = calcEnemyAttack(it.value, m.str, m.weak, pVuln, enemyStrengthLossThisTurn);
           const beforeHp = pHp;
           let incoming = atk;
           if (pIntangible > 0 && incoming > 1) incoming = 1;
diff --git a/tools/balance/sim-balance.test.mjs b/tools/balance/sim-balance.test.mjs
index dabeab9..fe44e5e 100644
--- a/tools/balance/sim-balance.test.mjs
+++ b/tools/balance/sim-balance.test.mjs
@@ -895,6 +895,13 @@ test("calcEnemyAttack: enemyStrengthLossThisTurn reduces enemy attack damage", (
   assert.equal(calcEnemyAttack(10, 6, 0, 0, 0), 16);
 });
 
+test("calcEnemyAttack: 힘 손실이 base 아래로 공격을 낮춘다 (음수 힘, Lua 동기화)", () => {
+  // 적 str=0, loss=6 → 힘 -6 → 10-6=4. JS가 str을 0에서 클램프하면 10(버그). Lua는 전체에서 차감.
+  assert.equal(calcEnemyAttack(10, 0, 0, 0, 6), 4);
+  assert.equal(calcEnemyAttack(10, 3, 0, 0, 6), 7);
+  assert.equal(calcEnemyAttack(5, 0, 0, 0, 6), 0); // 5-6=-1 → 0 클램프
+});
+
 test("simulateCombat: repeatOnKill repeats an attack until no kill occurs", () => {
   const shared = {
     cards: {