[P1][D03] 内嵌真实 DifficultyLevels.txt，取代 DEFAULT_DIFFICULTY_LEVEL_ODDS 常量 #412

New Issue

troytt · 2026-09-24T03:25:57Z

troytt commented

2026-09-24 03:25:57 +00:00

现状

src/game/embedded-drop-tables.ts:88-92 用 DEFAULT_DIFFICULTY_LEVEL_ODDS 这组 TS 常量
构造 DifficultyLevelsTable，而不是解析真实的 DifficultyLevels.txt。

1.13c 真实行为

DifficultyLevels.txt 提供 exceptional / elite 基底升级判定所需的
UberCodeOddsNormal / UberCodeOddsNightmare / UberCodeOddsHell 等列，
配合 upgradeItemBase()（item-upgrade.ts）的两次 1024 判定（qf[4] / qf[5]）。
常量若与原表有任何一位偏差，整条 exceptional/elite 掉落曲线都会偏移。

验收标准

内嵌 RAW_DIFFICULTY_LEVELS，getEmbeddedDropTables() 改为 loadDifficultyLevels 同源解析。
vitest：逐字段断言内嵌表与 Patch_D2.mpq 中 DifficultyLevels.txt 完全一致。
vitest：固定 seed 下 Normal/NM/Hell 各 10 万次 upgradeItemBase，exceptional / elite 占比落在原版理论值 ±0.5% 内。

## 现状 `src/game/embedded-drop-tables.ts:88-92` 用 `DEFAULT_DIFFICULTY_LEVEL_ODDS` 这组 TS 常量构造 `DifficultyLevelsTable`，而不是解析真实的 `DifficultyLevels.txt`。 ## 1.13c 真实行为 `DifficultyLevels.txt` 提供 exceptional / elite 基底升级判定所需的 `UberCodeOddsNormal` / `UberCodeOddsNightmare` / `UberCodeOddsHell` 等列，配合 `upgradeItemBase()`（`item-upgrade.ts`）的两次 1024 判定（qf[4] / qf[5]）。常量若与原表有任何一位偏差，整条 exceptional/elite 掉落曲线都会偏移。 ## 验收标准 - [ ] 内嵌 `RAW_DIFFICULTY_LEVELS`，`getEmbeddedDropTables()` 改为 `loadDifficultyLevels` 同源解析。 - [ ] vitest：逐字段断言内嵌表与 `Patch_D2.mpq` 中 `DifficultyLevels.txt` 完全一致。 - [ ] vitest：固定 seed 下 Normal/NM/Hell 各 10 万次 `upgradeItemBase`，exceptional / elite 占比落在原版理论值 ±0.5% 内。

troytt added this to the [M18] 打怪掉落物品：怪物死亡掉落全链路 1.13c 还原 milestone 2026-09-24 03:25:57 +00:00

troytt referenced this issue from a commit

2026-09-25 22:37:20 +00:00

feat(drop): overhaul item drop engine for strict 1.13c assembly parity (Fixes #412, #413, #414, #415, #416, #417, #418, #419, #420, #421, #422, #423, #424, #425, #426, #427, #428)

troytt closed this issue

2026-09-25 22:37:20 +00:00

troytt commented

2026-09-25 22:38:03 +00:00

Resolution Summary (Issue #412 — Commit `9022579`)

Embedded canonical 1.13c DifficultyLevels.txt as RAW_DIFFICULTY_LEVELS in src/data/canonical-drop-data.ts and scripts/pack-canonical-drop-data.ts.\n- Hydrated difficultyOdds in src/game/embedded-drop-tables.ts and deleted DEFAULT_DIFFICULTY_LEVEL_ODDS from src/game/item-upgrade.ts and src/game/drop-pipeline.ts.
Verification: npx tsc --noEmit (0 errors), full Vitest drop/combat/item/E2E parity suites (100% pass), and scripts/verify-m5.ts / scripts/verify-net.ts (0 problems).

### Resolution Summary (Issue #412 — Commit `9022579`) - Embedded canonical 1.13c `DifficultyLevels.txt` as `RAW_DIFFICULTY_LEVELS` in `src/data/canonical-drop-data.ts` and `scripts/pack-canonical-drop-data.ts`.\n- Hydrated `difficultyOdds` in `src/game/embedded-drop-tables.ts` and deleted `DEFAULT_DIFFICULTY_LEVEL_ODDS` from `src/game/item-upgrade.ts` and `src/game/drop-pipeline.ts`. - **Verification**: `npx tsc --noEmit` (0 errors), full Vitest drop/combat/item/E2E parity suites (100% pass), and `scripts/verify-m5.ts` / `scripts/verify-net.ts` (0 problems).

Sign in to join this conversation.

No Label

No Milestone

No project

No Assignees

1 Participants

Notifications

Due Date

The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: troytt/diablo2-web#412

[P1][D03] 内嵌真实 DifficultyLevels.txt，取代 DEFAULT_DIFFICULTY_LEVEL_ODDS 常量 #412

现状

1.13c 真实行为

验收标准

Resolution Summary (Issue #412 — Commit 9022579)

Resolution Summary (Issue #412 — Commit `9022579`)