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Item system overhaul: rarity bands, per-item caps, source pools + 14 new passives

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- Add ITEM_RARITY (common/uncommon/rare/legendary) with per-item tier caps
- Weighted pools per source: elites favour common, item rooms uncommon,
  bosses rare/legendary; legendaries are boss-exclusive; capped items excluded
- Rarity-weighted powerScore so deep common stacks inflate difficulty less
- Differentiate duplicates: Grafted Trigger, Crow Bait, Hollow Bones, Twin Hearts
- 14 new clean passives incl. Chill Gland (activates slowOnHit) and Hooked Sinew
  (activates magnetPull); revive magnetPull in pickups
- Rarity-tinted pedestal glow + nameplates, rarity-sorted HUD implant tray,
  dynamic help implant pages (8 -> 9)
- Generate 14 item icons via gen_assets.py; bump asset cache to v=38
- Update smoke tests for 60 items, per-item caps, pools, weighted power
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MeatSlicer Developer committed 2026-07-30 15:21:02 +10:00
1 parent a02cff52cf
commit 4f46d54e99
28 files changed
+356 -187
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test/smoke.js
+51 -20
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@@ -318,9 +318,9 @@ step(30, 16);
console.log('== expanded perk and item rosters ==');
{
check('27 new items added', Object.keys(ctx.ITEMS).length === 46);
check('41 new items added (14 phase-2 passives)', Object.keys(ctx.ITEMS).length === 60);
const newPerks = ['critbone', 'critmeat', 'flensing', 'ember', 'frostbile', 'heavyhand', 'thickhide', 'secondwind', 'scrapfeed', 'boneknit', 'spiteflesh', 'carrion', 'sinew'];
const newItems = ['chainsinew', 'mortarbone', 'bloatrounds', 'marrowglut', 'hollowneedle', 'bloodshoteye', 'flayerkiss', 'emberjar', 'acidgland', 'hookrounds', 'sledgerounds', 'graftedtrigger', 'deadmanswitch', 'orbitcrown', 'tannedhide', 'deadmansclock', 'hollowbones', 'boneplate', 'wormgut', 'spinecage', 'secondstomach', 'spitewell', 'twinhearts', 'brassmagazine', 'crowbait', 'gorgingleech', 'rerollrib'];
const newItems = ['chainsinew', 'mortarbone', 'bloatrounds', 'marrowglut', 'hollowneedle', 'bloodshoteye', 'flayerkiss', 'emberjar', 'acidgland', 'hookrounds', 'sledgerounds', 'graftedtrigger', 'deadmanswitch', 'orbitcrown', 'tannedhide', 'deadmansclock', 'hollowbones', 'boneplate', 'wormgut', 'spinecage', 'secondstomach', 'spitewell', 'twinhearts', 'brassmagazine', 'crowbait', 'gorgingleech', 'rerollrib', 'chillgland', 'hookedsinew', 'gyroscopicribs', 'marrowpiston', 'splitcortex', 'gristlecord', 'renderedfat', 'whipcordtendon', 'rusteddiadem', 'gorgedtick', 'bonemealpowder', 'rimedfang', 'butcherstwine', 'cindersump'];
check('all new perks have manifest icons or fallbacks', newPerks.every(id => ctx.SPRITE_MANIFEST.includes('perk_' + id)));
check('all new items have manifest icons or fallbacks', newItems.every(id => ctx.SPRITE_MANIFEST.includes('i_' + id)));
check('new roster entries all have names, descriptions and effects',
@@ -329,7 +329,7 @@ console.log('== expanded perk and item rosters ==');
const livePlayer = ctx.G.player;
ctx.initPlayer();
const probe = ctx.G.player;
for (const id of newItems) for (let tier = 0; tier < 9; tier++) ctx.ITEMS[id].apply(probe.stats, probe);
for (const id of newItems) for (let tier = 0; tier < (ctx.ITEMS[id].cap ?? 9); tier++) ctx.ITEMS[id].apply(probe.stats, probe);
for (const id of newPerks) for (let tier = 0; tier < 3; tier++) ctx.PERKS.find(k => k.id === id).apply(probe.stats, probe);
check('all new effects execute repeatedly without non-finite stats',
Object.values(probe.stats).every(v => typeof v !== 'number' || Number.isFinite(v)) && Number.isFinite(probe.hp) && Number.isFinite(probe.shieldHp));
@@ -412,7 +412,7 @@ console.log('== continuous saw frame-rate independence ==');
p.stats = savedStats; ctx.G.enemies.length = 0;
}
console.log('== item upgrades (9 quality tiers) ==');
console.log('== item upgrades (per-item tier caps) ==');
{
const p = ctx.G.player;
const dmgBefore = p.stats.dmgMul;
@@ -420,16 +420,47 @@ console.log('== item upgrades (9 quality tiers) ==');
check('duplicate upgrades to tier II', p.items.hollowpoints === 2);
check('upgrade re-applies the effect', Math.abs(p.stats.dmgMul - dmgBefore * 1.25) < 0.001);
for (let i = 0; i < 7; i++) ctx.giveItem('hollowpoints');
check('nine copies reach tier IX', p.items.hollowpoints === 9);
check('full linear scaling to IX', Math.abs(p.stats.dmgMul - dmgBefore * Math.pow(1.25, 8)) < 0.01);
check('six copies reach the Hollow Points cap (VI)', p.items.hollowpoints === 6);
check('scaling stops at the cap', Math.abs(p.stats.dmgMul - dmgBefore * Math.pow(1.25, 5)) < 0.01);
const scoreBefore = ctx.G.score;
const dmgAtCap = p.stats.dmgMul;
ctx.giveItem('hollowpoints');
check('tenth copy capped, converts to score', p.items.hollowpoints === 9 && ctx.G.score > scoreBefore);
check('seventh copy capped, converts to score', p.items.hollowpoints === 6 && ctx.G.score > scoreBefore);
check('capped copy gives no extra effect', p.stats.dmgMul === dmgAtCap);
check('still one icon in the item list', Object.keys(p.items).filter(k => k === 'hollowpoints').length === 1);
}
console.log('== rarity pools and per-item caps ==');
{
const p = ctx.G.player;
p.items = {};
// legendaries never come from elite or item-room pools
let sawLegendary = false;
for (let i = 0; i < 400; i++) {
const eid = ctx.rollItemId('elite', 1), rid = ctx.rollItemId('room', 1);
if (ctx.ITEMS[eid].rarity === 'legendary' || ctx.ITEMS[rid].rarity === 'legendary') sawLegendary = true;
}
check('elite and room pools never roll legendaries', !sawLegendary);
// boss pool can roll rare (and would roll legendary when any exist)
let bossRares = 0;
for (let i = 0; i < 200; i++) if (ctx.ITEMS[ctx.rollItemId('boss', 3)].rarity === 'rare') bossRares++;
check('boss pool favours rare items (' + bossRares + '/200)', bossRares > 40);
// capped items are excluded from fresh rolls
p.items = { splittongue: 3 }; // rare cap 3
let reoffered = false;
for (let i = 0; i < 300; i++) if (ctx.rollItemId('room', 1) === 'splittongue') reoffered = true;
check('capped items are not re-offered by pools', !reoffered);
// stickiness still favours owned upgradable items
p.items = { hollowpoints: 1 };
let owned = 0;
for (let i = 0; i < 600; i++) if (ctx.rollItemId('room', 1) === 'hollowpoints') owned++;
const frac = owned / 600;
check('stickiness ramps toward owned items (' + owned + '/600)', frac > 0.04 && frac < 0.20);
// legacy alias still resolves
check('randomItemId legacy alias works', typeof ctx.randomItemId() === 'string');
p.items = {};
}
console.log('== tier-scaled items + duplicate favoring ==');
{
const p = ctx.G.player;
@@ -464,7 +495,7 @@ console.log('== tier-scaled items + duplicate favoring ==');
for (let i = 0; i < 200; i++) {
if (p.items[ctx.randomItemId()]) ownedHits++;
}
check('item rolls favor owned items (' + ownedHits + '/200)', ownedHits >= 60);
check('item rolls favor owned items (' + ownedHits + '/200)', ownedHits >= 40);
}
console.log('== all weapons fire without crashing ==');
@@ -742,16 +773,16 @@ console.log('== monsters scale with player upgrades ==');
p.level = 1; p.items = {};
const base = ctx.makeEnemy('shambler', 500, 300, 1, false);
check('no upgrades = base hp', Math.abs(base.hp - 26) < 0.01);
// Weighted power: 4 perks × 0.5 + 2 item tiers = 4 power.
// Rarity-weighted power: 4 perks × 0.5 + 2 common tiers × 0.5 = 3 power.
p.level = 5; p.items = { hollowpoints: 2 };
const e6 = ctx.makeEnemy('shambler', 500, 300, 1, false);
check('weaker perks count half as much as item tiers', Math.abs(ctx.powerScore() - 4) < 0.001);
check('weighted power gives +20% hp', Math.abs(e6.hp - 26 * 1.2) < 0.01);
check('weighted power gives ~+4% speed', e6.spd >= 55 * 1.04 * 0.9 && e6.spd <= 55 * 1.04 * 1.1);
check('common item tiers weigh 0.5 power each', Math.abs(ctx.powerScore() - 3) < 0.001);
check('weighted power gives +15% hp', Math.abs(e6.hp - 26 * 1.15) < 0.01);
check('weighted power gives ~+3% speed', e6.spd >= 55 * 1.03 * 0.9 && e6.spd <= 55 * 1.03 * 1.1);
const e64 = ctx.makeEnemy('shambler', 500, 300, 4, false);
check('floor + weighted scaling stack', Math.abs(e64.hp - 26 * 1.66 * 1.2) < 0.02);
check('floor + weighted scaling stack', Math.abs(e64.hp - 26 * 1.66 * 1.15) < 0.02);
const b = ctx.spawnBoss(1);
check('boss hp scales with weighted upgrades', Math.abs(b.hp - 520 * 1.2) < 0.01);
check('boss hp scales with weighted upgrades', Math.abs(b.hp - 520 * 1.15) < 0.01);
ctx.G.enemies.length = 0; ctx.G.boss = null; ctx.G.cur.cleared = true;
ctx.startRun(); step(5, 16);
}
@@ -893,21 +924,21 @@ console.log('== item stickiness ramps with owned count ==');
let owned1 = 0;
for (let i = 0; i < 600; i++) if (ctx.randomItemId() === 'hollowpoints') owned1++;
const frac1 = owned1 / 600;
check('1 owned item sticks ~10% (' + owned1 + '/600)', frac1 > 0.05 && frac1 < 0.20);
// 5+ upgradable items -> capped 50% stick
check('1 owned item sticks ~7% (' + owned1 + '/600)', frac1 > 0.03 && frac1 < 0.16);
// 5+ upgradable items -> 50% stick × 0.7 room multiplier ≈ 35%
p.items = { hollowpoints: 1, twitch: 1, scalpel: 1, leadmarrow: 1, piercegaze: 1 };
let owned5 = 0;
for (let i = 0; i < 600; i++) if (p.items[ctx.randomItemId()]) owned5++;
const frac5 = owned5 / 600;
check('5+ owned items stick ~50% (' + owned5 + '/600)', frac5 > 0.38 && frac5 < 0.62);
check('5+ owned items stick ~35% (' + owned5 + '/600)', frac5 > 0.25 && frac5 < 0.48);
p.items = {};
ctx.startRun(); step(3, 16);
}
console.log('== help manual is 8 pages (implants split) ==');
console.log('== help manual grows with the implant roster ==');
{
check('8 help pages', ctx.HELP_PAGES.length === 8);
check('8 help renderers', ctx.HELP_RENDERERS.length === 8);
check('9 help pages (3 implant pages for 60 items)', ctx.HELP_PAGES.length === 9);
check('9 help renderers', ctx.HELP_RENDERERS.length === 9);
ctx.G.player = ctx.G.player || {};
const fctx = fakeCtx();
let renderOK = true;