step 10.18: wip (not ticked)

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bepis
2026-10-23 10:45:45 +11:00
parent c78a9c8d49
commit d8438a0422
3 changed files with 130 additions and 143 deletions
+109 -124
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@@ -1,6 +1,8 @@
// Balance simulation: seeded combat simulation to validate monster/zone balance.
// Creates a hero per class, auto-allocates points, hunts repeatedly, prints win rates and level-up metrics.
// Usage: node scripts/sim-balance.js
//
// 10.18: Monster stats must match src/db/migrations/008_balance.sql
const { mulberry32, rngInt } = require('../src/utils/rng');
const { calcDerived } = require('../src/game/stats');
@@ -11,38 +13,37 @@ const { getClass, getBaseStats, CLASS_KEYS } = require('../src/game/classes');
const { getEquipmentBonuses } = require('../src/game/equipment');
// ─── Seeded RNG ────────────────────────────────────────────────────────────
const SEED = 42;
var SEED = 42;
// ─── Zone / monster definitions (mirrors DB via 008_balance.sql) ────────────
const ZONES = {
// ─── Zone / monster definitions (MUST match 008_balance.sql) ────────────────
var ZONES = {
meadows: { slug: 'whispering-meadows', minLevel: 1, energyCost: 5, monsters: [
{ name: 'Giant Rat', level: 1, hp: 120, attack: 11, defense: 40, speed: 12, xp: 20, goldMin: 3, goldMax: 7 },
{ name: 'Meadow Wolf', level: 2, hp: 150, attack: 12, defense: 40, speed: 16, xp: 30, goldMin: 5, goldMax: 12 },
{ name: 'Goblin Scrapper', level: 3, hp: 180, attack: 15, defense: 40, speed: 11, xp: 45, goldMin: 8, goldMax: 18 },
{ name: 'Giant Rat', level: 1, hp: 200, attack: 6, defense: 8, speed: 12, xp: 50, goldMin: 3, goldMax: 7 },
{ name: 'Meadow Wolf', level: 2, hp: 250, attack: 8, defense: 8, speed: 16, xp: 65, goldMin: 5, goldMax: 12 },
{ name: 'Goblin Scrapper', level: 3, hp: 300, attack: 10, defense: 8, speed: 11, xp: 85, goldMin: 8, goldMax: 18 },
]},
forest: { slug: 'gloomroot-forest', minLevel: 5, energyCost: 8, monsters: [
{ name: 'Webspinner', level: 5, hp: 200, attack: 28, defense: 30, speed: 15, xp: 50, goldMin: 12, goldMax: 24 },
{ name: 'Bandit Cutthroat', level: 6, hp: 250, attack: 33, defense: 30, speed: 14, xp: 70, goldMin: 18, goldMax: 36 },
{ name: 'Mossback Treant', level: 8, hp: 320, attack: 38, defense: 30, speed: 7, xp: 95, goldMin: 22, goldMax: 44 },
{ name: 'Webspinner', level: 5, hp: 200, attack: 25, defense: 30, speed: 15, xp: 90, goldMin: 12, goldMax: 24 },
{ name: 'Bandit Cutthroat', level: 6, hp: 250, attack: 30, defense: 30, speed: 14, xp: 120, goldMin: 18, goldMax: 36 },
{ name: 'Mossback Treant', level: 8, hp: 320, attack: 35, defense: 30, speed: 7, xp: 160, goldMin: 22, goldMax: 44 },
]},
crags: { slug: 'ashfang-crag', minLevel: 10, energyCost: 12, monsters: [
{ name: 'Ember Imp', level: 10, hp: 300, attack: 45, defense: 40, speed: 20, xp: 120, goldMin: 30, goldMax: 55 },
{ name: 'Stone Golem', level: 12, hp: 600, attack: 48, defense: 40, speed: 5, xp: 170, goldMin: 40, goldMax: 75 },
{ name: 'Ashfang Drake', level: 14, hp: 850, attack: 55, defense: 40, speed: 18, xp: 260, goldMin: 55, goldMax: 110 },
{ name: 'Ember Imp', level: 10, hp: 150, attack: 25, defense: 12, speed: 20, xp: 200, goldMin: 30, goldMax: 55 },
{ name: 'Stone Golem', level: 12, hp: 300, attack: 30, defense: 12, speed: 5, xp: 280, goldMin: 40, goldMax: 75 },
{ name: 'Ashfang Drake', level: 14, hp: 400, attack: 28, defense: 3, speed: 18, xp: 350, goldMin: 55, goldMax: 110 },
]},
};
// Monster weights per zone
const MONSTER_WEIGHTS = { meadows: [30, 20, 15], forest: [25, 20, 10], crags: [25, 10, 5] };
var MONSTER_WEIGHTS = { meadows: [30, 20, 15], forest: [25, 20, 10], crags: [25, 10, 5] };
// ─── Simulation helpers ────────────────────────────────────────────────────
function pickMonster(zoneKey, rng) {
const zone = ZONES[zoneKey];
const weights = MONSTER_WEIGHTS[zoneKey];
const total = weights.reduce((a, b) => a + b, 0);
let r = rng() * total;
for (let i = 0; i < zone.monsters.length; i++) {
var zone = ZONES[zoneKey];
var weights = MONSTER_WEIGHTS[zoneKey];
var total = weights.reduce(function(a, b) { return a + b; }, 0);
var r = rng() * total;
for (var i = 0; i < zone.monsters.length; i++) {
r -= weights[i];
if (r < 0) return zone.monsters[i];
}
@@ -50,69 +51,62 @@ function pickMonster(zoneKey, rng) {
}
function simulateHunt(hero, monster, rng) {
const equipBonuses = { bonus_str: 0, bonus_agi: 0, bonus_int: 0, bonus_vit: 0, bonus_attack: 0, bonus_defense: 0 };
const fight = resolveCombat({
var equipBonuses = { bonus_str: 0, bonus_agi: 0, bonus_int: 0, bonus_vit: 0, bonus_attack: 0, bonus_defense: 0 };
var fight = resolveCombat({
class: hero.class, level: hero.level, hpCurrent: hero.hp,
str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit,
...equipBonuses,
bonus_str: 0, bonus_agi: 0, bonus_int: 0, bonus_vit: 0, bonus_attack: 0, bonus_defense: 0,
}, monster, rng);
let xpGained = 0, goldGained = 0;
var xpGained = 0, goldGained = 0;
if (fight.winner === 'hero') {
const rewards = calculateRewards(monster.xp, monster.goldMin, monster.goldMax, monster.level, hero.level, rng);
var rewards = calculateRewards(monster.xp, monster.goldMin, monster.goldMax, monster.level, hero.level, rng);
xpGained = rewards.xp;
goldGained = rewards.gold;
}
return { winner: fight.winner, hpRemaining: fight.hpRemaining, xpGained, goldGained };
return { winner: fight.winner, hpRemaining: fight.hpRemaining, xpGained: xpGained, goldGained: goldGained };
}
// ─── Run simulation for one class ──────────────────────────────────────────
function simulateClass(className) {
const cls = getClass(className);
const base = getBaseStats(className);
const rng = mulberry32(SEED + CLASS_KEYS.indexOf(className));
var cls = getClass(className);
var base = getBaseStats(className);
var rng = mulberry32(SEED + CLASS_KEYS.indexOf(className));
// Hero state
let hero = {
class: className,
level: 1,
xp: 0,
hp: 0, // set below after deriving maxHp
maxHp: 0,
var hero = {
class: className, level: 1, xp: 0, totalXpForLevel: 0, hp: 0, maxHp: 0,
str: base.str, agi: base.agi, int: base.int, vit: base.vit,
gold: 50,
};
const derived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, hero.level, className);
var derived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, hero.level, className);
hero.hp = derived.maxHp;
hero.maxHp = derived.maxHp;
// Track stats
const results = { meadows: { wins: 0, total: 0 }, forest: { wins: 0, total: 0 }, crags: { wins: 0, total: 0 } };
let totalHunts = 0;
let consecutiveDefeats = 0;
const MAX_DEFEATS = 50; // prevent infinite loops
var results = { meadows: { wins: 0, total: 0 }, forest: { wins: 0, total: 0 }, crags: { wins: 0, total: 0 } };
var totalHunts = 0;
var consecutiveDefeats = 0;
var MAX_DEFEATS = 200; // increased from 50 — low-vit classes need more attempts
// Phase 1: Level 1 → 5 in Meadows
while (hero.level < 5 && consecutiveDefeats < MAX_DEFEATS) {
const monster = pickMonster('meadows', rng);
const result = simulateHunt(hero, monster, rng);
var monster = pickMonster('meadows', rng);
var result = simulateHunt(hero, monster, rng);
results.meadows.total++;
if (result.winner === 'hero') {
results.meadows.wins++;
consecutiveDefeats = 0;
const xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
var xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
if (xpResult.level > hero.level) {
const newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
var newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
hero.hp = newDerived.maxHp;
hero.maxHp = newDerived.maxHp;
}
hero.xp = xpResult.xp;
hero.level = xpResult.level;
hero.gold += result.goldGained;
// Recover some HP after victory (10% of maxHp)
hero.hp = Math.min(hero.maxHp, hero.hp + Math.floor(hero.maxHp * 0.1));
} else {
hero.hp = 1;
@@ -122,20 +116,19 @@ function simulateClass(className) {
totalHunts++;
}
const huntsL1to5 = totalHunts;
var huntsL1to5 = totalHunts;
// Phase 2: Level 5 → 10 in Forest
let huntsAtL5 = totalHunts;
while (hero.level < 10 && consecutiveDefeats < MAX_DEFEATS) {
const monster = pickMonster('forest', rng);
const result = simulateHunt(hero, monster, rng);
var monster = pickMonster('forest', rng);
var result = simulateHunt(hero, monster, rng);
results.forest.total++;
if (result.winner === 'hero') {
results.forest.wins++;
consecutiveDefeats = 0;
const xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
var xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
if (xpResult.level > hero.level) {
const newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
var newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
hero.hp = newDerived.maxHp;
hero.maxHp = newDerived.maxHp;
}
@@ -151,19 +144,20 @@ function simulateClass(className) {
totalHunts++;
}
const huntsL1to10 = totalHunts;
var huntsL1to10 = totalHunts;
// Phase 3: Level 10+ in Crags (20 hunts)
for (let i = 0; i < 20; i++) {
const monster = pickMonster('crags', rng);
const result = simulateHunt(hero, monster, rng);
// Phase 3: Level 10+ in Crags (run until max level or 300 hunts)
var cragsHunts = 0;
while (cragsHunts < 300) {
var monster = pickMonster('crags', rng);
var result = simulateHunt(hero, monster, rng);
results.crags.total++;
if (result.winner === 'hero') {
results.crags.wins++;
consecutiveDefeats = 0;
const xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
var xpResult = applyXpGain(hero.level, hero.xp, 0, result.xpGained);
if (xpResult.level > hero.level) {
const newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
var newDerived = calcDerived({ str: hero.str, agi: hero.agi, int: hero.int, vit: hero.vit }, xpResult.level, className);
hero.hp = newDerived.maxHp;
hero.maxHp = newDerived.maxHp;
}
@@ -176,27 +170,30 @@ function simulateClass(className) {
hero.gold = Math.max(0, hero.gold - Math.floor(hero.gold * 0.1));
consecutiveDefeats++;
}
cragsHunts++;
totalHunts++;
}
return { className, cls, results, huntsL1to5, huntsL1to10, finalLevel: hero.level, finalGold: hero.gold };
return { className: className, cls: cls, results: results, huntsL1to5: huntsL1to5, huntsL1to10: huntsL1to10, finalLevel: hero.level, finalGold: hero.gold };
}
// ─── Level-1 zone win rates ────────────────────────────────────────────────
function simulateLevel1WinRate(zoneKey) {
const rng = mulberry32(SEED + 999);
let wins = 0;
const rounds = 100;
var rng = mulberry32(SEED + 999);
var wins = 0;
var rounds = 100;
for (let r = 0; r < rounds; r++) {
const classRng = mulberry32(SEED + r * 100);
for (const className of CLASS_KEYS) {
const cls = getClass(className);
const base = getBaseStats(className);
const derived = calcDerived({ str: base.str, agi: base.agi, int: base.int, vit: base.vit }, 1, className);
for (var r = 0; r < rounds; r++) {
var classRng = mulberry32(SEED + r * 100);
for (var ci = 0; ci < CLASS_KEYS.length; ci++) {
var className = CLASS_KEYS[ci];
var cls = getClass(className);
var base = getBaseStats(className);
var derived = calcDerived({ str: base.str, agi: base.agi, int: base.int, vit: base.vit }, 1, className);
const monster = pickMonster(zoneKey, classRng);
const result = simulateHunt({
var monster = pickMonster(zoneKey, classRng);
var result = simulateHunt({
class: className, level: 1, hp: derived.maxHp, maxHp: derived.maxHp,
str: base.str, agi: base.agi, int: base.int, vit: base.vit,
}, monster, classRng);
@@ -211,22 +208,22 @@ function simulateLevel1WinRate(zoneKey) {
// ─── Level-5 Forest win rate ───────────────────────────────────────────────
function simulateLevel5ForestWinRate() {
const rng = mulberry32(SEED + 888);
let wins = 0;
const rounds = 100;
var rng = mulberry32(SEED + 888);
var wins = 0;
var rounds = 100;
for (let r = 0; r < rounds; r++) {
for (const className of CLASS_KEYS) {
const cls = getClass(className);
const base = getBaseStats(className);
// Auto-allocate 15 points to primary stat
const primary = cls.primary;
const stats = { ...base };
for (var r = 0; r < rounds; r++) {
for (var ci = 0; ci < CLASS_KEYS.length; ci++) {
var className = CLASS_KEYS[ci];
var cls = getClass(className);
var base = getBaseStats(className);
var primary = cls.primary;
var stats = { str: base.str, agi: base.agi, int: base.int, vit: base.vit };
stats[primary] += 15;
const derived = calcDerived(stats, 5, className);
var derived = calcDerived(stats, 5, className);
const monster = pickMonster('forest', rng);
const result = simulateHunt({
var monster = pickMonster('forest', rng);
var result = simulateHunt({
class: className, level: 5, hp: derived.maxHp, maxHp: derived.maxHp,
str: stats.str, agi: stats.agi, int: stats.int, vit: stats.vit,
}, monster, rng);
@@ -241,7 +238,7 @@ function simulateLevel5ForestWinRate() {
// ─── Main ──────────────────────────────────────────────────────────────────
function pct(n) {
return `${Math.round(n * 100) / 100}%`;
return Math.round(n * 100) / 100 + '%';
}
function main() {
@@ -249,24 +246,21 @@ function main() {
console.log('Emberfall Balance Simulation (seed=' + SEED + ')');
console.log('='.repeat(80));
// Level-1 win rates
const l1Meadows = simulateLevel1WinRate('meadows');
const l1Crags = simulateLevel1WinRate('crags');
var l1Meadows = simulateLevel1WinRate('meadows');
var l1Crags = simulateLevel1WinRate('crags');
console.log('\n--- Level-1 Win Rates ---');
console.log(` Meadows: ${pct(l1Meadows)} (target: 70–90%)`);
console.log(` Crags: ${pct(l1Crags)} (target: ≤15%)`);
console.log(' Meadows: ' + pct(l1Meadows) + ' (target: 70–90%)');
console.log(' Crags: ' + pct(l1Crags) + ' (target: ≤15%)');
// Level-5 Forest win rate
const l5Forest = simulateLevel5ForestWinRate();
console.log(` Forest L5: ${pct(l5Forest)} (target: 50–75%)`);
var l5Forest = simulateLevel5ForestWinRate();
console.log(' Forest L5: ' + pct(l5Forest) + ' (target: 50–75%)');
// Per-class progression
console.log('\n--- Per-Class Progression ---');
console.log('Class Hunts L1→5 Hunts L1→10 Crags Win% Final Lv Gold');
console.log('-'.repeat(70));
const targets = {
var targets = {
l1Meadows: [0.70, 0.90],
l1Crags: [0, 0.15],
l5Forest: [0.50, 0.75],
@@ -274,45 +268,36 @@ function main() {
l1to10Hunts: [150, 300],
};
let allMet = true;
var allMet = true;
var classResults = [];
const classResults = [];
for (const className of CLASS_KEYS) {
const sim = simulateClass(className);
for (var ci = 0; ci < CLASS_KEYS.length; ci++) {
var className = CLASS_KEYS[ci];
var sim = simulateClass(className);
classResults.push(sim);
const meadowsRate = sim.results.meadows.total > 0 ? sim.results.meadows.wins / sim.results.meadows.total : 0;
const cragsRate = pct(sim.results.crags.wins / Math.max(1, sim.results.crags.total));
var meadowsRate = sim.results.meadows.total > 0 ? sim.results.meadows.wins / sim.results.meadows.total : 0;
var cragsRate = pct(sim.results.crags.wins / Math.max(1, sim.results.crags.total));
console.log(className + ' L1->5: ' + String(sim.huntsL1to5).padStart(8) + ' L1->10: ' + String(sim.huntsL1to10).padStart(8) + ' Crags: ' + cragsRate.padStart(9) + ' Lv' + String(sim.finalLevel).padStart(6) + ' ' + String(sim.finalGold).padStart(6) + 'g');
// Check L1→5 hunts (use the first class's value as representative)
}
// Use the average of all classes for progression metrics
const avgL1to5 = Math.round(classResults.reduce((s, c) => s + c.huntsL1to5, 0) / classResults.length);
const avgL1to10 = Math.round(classResults.reduce((s, c) => s + c.huntsL1to10, 0) / classResults.length);
var avgL1to5 = Math.round(classResults.reduce(function(s, c) { return s + c.huntsL1to5; }, 0) / classResults.length);
var avgL1to10 = Math.round(classResults.reduce(function(s, c) { return s + c.huntsL1to10; }, 0) / classResults.length);
console.log('\n--- Aggregate Targets ---');
console.log(` L1→5 hunts: ${avgL1to5} (target: 40–70) ${avgL1to5 >= 40 && avgL1to5 <= 70 ? '✓' : '✗'}`);
console.log(` L1→10 hunts: ${avgL1to10} (target: 150–300) ${avgL1to10 >= 150 && avgL1to10 <= 300 ? '✓' : '✗'}`);
console.log(' L1→5 hunts: ' + avgL1to5 + ' (target: 40–70) ' + (avgL1to5 >= 40 && avgL1to5 <= 70 ? '✓' : '✗'));
console.log(' L1→10 hunts: ' + avgL1to10 + ' (target: 150–300) ' + (avgL1to10 >= 150 && avgL1to10 <= 300 ? '✓' : '✗'));
if (l1Meadows < targets.l1Meadows[0] || l1Meadows > targets.l1Meadows[1]) { console.log(` L1 Meadows: ${pct(l1Meadows)} ✗`); allMet = false; } else { console.log(` L1 Meadows: ${pct(l1Meadows)} ✓`); }
if (l1Crags < targets.l1Crags[0] || l1Crags > targets.l1Crags[1]) { console.log(` L1 Crags: ${pct(l1Crags)} ✗`); allMet = false; } else { console.log(` L1 Crags: ${pct(l1Crags)} ✓`); }
if (l5Forest < targets.l5Forest[0] || l5Forest > targets.l5Forest[1]) { console.log(` L5 Forest: ${pct(l5Forest)} ✗`); allMet = false; } else { console.log(` L5 Forest: ${pct(l5Forest)} ✓`); }
if (l1Meadows < targets.l1Meadows[0] || l1Meadows > targets.l1Meadows[1]) { console.log(' L1 Meadows: ' + pct(l1Meadows) + ' ✗'); allMet = false; } else { console.log(' L1 Meadows: ' + pct(l1Meadows) + ' ✓'); }
if (l1Crags < targets.l1Crags[0] || l1Crags > targets.l1Crags[1]) { console.log(' L1 Crags: ' + pct(l1Crags) + ' ✗'); allMet = false; } else { console.log(' L1 Crags: ' + pct(l1Crags) + ' ✓'); }
if (l5Forest < targets.l5Forest[0] || l5Forest > targets.l5Forest[1]) { console.log(' L5 Forest: ' + pct(l5Forest) + ' ✗'); allMet = false; } else { console.log(' L5 Forest: ' + pct(l5Forest) + ' ✓'); }
// Check class spread (no class > 15pp above another in any zone)
console.log('\n--- Class Spread (max 15pp gap) ---');
for (const zone of ['meadows', 'forest', 'crags']) {
const rates = classResults.map(c => zone === 'crags' ? c.results.crags.wins / Math.max(1, c.results.crags.total) : 0);
// For meadows/forest, compute from the full sim (all hunts in that zone)
if (zone === 'meadows') {
const rates2 = classResults.map(c => c.results.meadows.total > 0 ? c.results.meadows.wins / c.results.meadows.total : 0);
const max = Math.max(...rates2);
const min = Math.min(...rates2);
const gap = (max - min) * 100;
console.log(` Meadows: gap ${pct(gap / 100)} ${gap <= 15 ? '✓' : '✗'}`);
if (gap > 15) allMet = false;
}
}
var meadowsRates = classResults.map(function(c) { return c.results.meadows.total > 0 ? c.results.meadows.wins / c.results.meadows.total : 0; });
var mMax = Math.max.apply(null, meadowsRates);
var mMin = Math.min.apply(null, meadowsRates);
var mGap = (mMax - mMin) * 100;
console.log(' Meadows: gap ' + pct(mGap / 100) + ' ' + (mGap <= 15 ? '✓' : '✗'));
if (mGap > 15) allMet = false;
console.log('\n' + '='.repeat(80));
console.log(allMet ? 'ALL TARGETS MET ✓' : 'SOME TARGETS NOT MET ✗ — tune monster stats in a NEW migration');