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mtgodot-poc/oracle/FORMAT.md
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shenandClaude Sonnet 5 47baf6c0c6 Metin2 game client (P0–P11) + mobile asset pipeline
Networked client on the existing Godot 4.7 + libgr2 renderer:
- net: m2dev wire protocol (libsodium KX + XChaCha20), auth/select/game
  phases, EntityStore world model, ~all GC/CG headers. char create/delete,
  private shop / mall / cube, SHOP_GC_START_EX, guild, party (+ CG_PARTY_SET_STATE),
  quests, dragon soul, refine, safebox, exchange.
- UI: in-game windows migrated 1:1 from the reference uiscript/root .py —
  char status (/stat), inventory+equipment, select-item ([SELECT_ITEM] quest
  token), system-option + game-option + ESC system menu, private-shop 39-grid,
  party info board, shop tabs, atlas, minimap, quickbar, chat, …
- EterGrnLib polish: GR2 material blend/two-sided, LOD crossfade, motion-event
  dispatch, contact shadow, ray-AABB picking, weapon grip pre-transform.

Portable asset IO (A1) — all extension/libgr2/formats/mtproto reads routed
through godot::FileAccess (res:// PCK works on iOS/Android); standalone-lib
*_path() kept for the non-Godot CTests. AssetResolver + PropertyRegistry
switched to a baked index (bake_asset_index.gd) instead of std::filesystem.

Mobile builds: build-{android,ios}.sh, export-android.sh, pack-assets.sh,
gen-debug-keystore.sh. Assets ship as a zip mounted at runtime by
project/asset_pack.gd (adb push now; HTTP download is a drop-in later).

ctest 10/10, 34 GDScript suites, macOS/iOS/Android all build.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013EJxkHiNKS4kybHS3XKyAJ
2026-08-31 20:02:12 +09:00

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oracle dump 二进制格式

oracle.coracle dump)产出。libgr2 侧对拍读取器(tools/oracle_diff/)必须与本文件一致。 oracle dump层① 世界矩阵mesh N 蒙皮顶点写进同一个文件:先文件头, 再 kind=1 段,紧接着 kind=3 段(--mesh 未命中时 vertex_count=0)。全部小端。

文件头(所有 dump 共用)

magic       "XORC"                       4B
version      u32                         1
kind         u32   1=层① 2=层② 3=蒙皮顶点  1
coord        u32   坐标约定编码:           1
                   bit0 手系 (0=左手 1=右手)
                   bit1 单位 (0=原始 1=米)
                   bit2 根变换已 apply
granny_ver   char[16]  选定 granny2.dll 版本串
model_path   len-prefixed str
anim_path    len-prefixed str
t            f32   采样时刻

kind=1/2 段(骨骼世界矩阵,紧跟文件头)

bone_count   u32
matrices     f32[bone_count][16]   GrannyGetWorldPose4x4Array 直出(骨骼空间→世界),行主序 Granny 原生

⚠ 不是 GrannyGetWorldPoseComposite4x4Array —— 那个返回 InverseWorld4x4·world = 蒙皮矩阵bind pose 时 ≈ I)。 GrannyBuildWorldPoseOffset4x4 传的是 model 的 InitialPlacementGrannyGetModelInitialPlacement4x4), 与 libgr2 skeleton.initial_placement 一致;不传的话非单位 IP 的模型(如 assassin 双 root)会差一个平移。

kind=3 段(mesh N 蒙皮顶点,紧跟 kind=1 段)

vertex_count u32                    (--mesh 未命中 → 0,无后续)
positions    f32[vertex_count][3]   GrannyDeformVertices(PositionNormal) 后的位置

坐标约定

M0/oracle 全程 rawcoord = 手系按选定 DLL 实际输出、单位=原始、根变换未 apply。 libgr2 的 gr2::Mat4 声明同一约定(见 docs/steps/M0-gr2-reader.md 「约定」)。 basis fix / 单位缩放是 M1 渲染时才做的事,不进 dump。