Repo ↗ · 原始 README ↗ · 文件包（Markdown／授權）
封面參考（原作）： Riders Republic · 原作宣傳圖，由 IGDB 提供。圖片版權屬原權利人，供辨識原作使用，不代表此重寫／模組專案的實際畫面。
來源維護者： OpenRsG · 版本： eae1c84c11a8 · 整理日期： 2026-10-12
文件授權： Apache-2.0 · LICENSE · 本文形式： README 翻譯
下文為來源 README 的繁中翻譯，由 Kirikirin 使用 AI 輔助整理；功能、完成度與測試結果均為原作者描述，本站未逐項實機驗證。圖片改為來源連結，指令與技術識別保留原文。
RustRepublic
以 Rust + Bevy 打造的極限登山車與滑雪物理。 後空翻、桶滾、
甩尾、540 抓板、刻滑、V 字滑行、真實摔車化為布娃娃物理。可在
桌面執行，或透過 WebGPU 在瀏覽器中執行。
[!IMPORTANT]
沒有遊戲程式碼，也不需要遊戲。 這個儲存庫中的所有內容都是為
本專案從零撰寫：物理、骨架、動畫、渲染與攝影機。它
不包含來自 Riders Republic 的任何程式碼、素材、模型、動畫或資料，也從不
載入任何遊戲檔案。你不需要擁有或安裝該遊戲就能建置或遊玩。這是一個受 Riders Republic 啟發的粉絲專案，與
Ubisoft 無隸屬關係，也未獲其背書。部分姿勢、身體比例與時間點是
對照從本機安裝的遊戲其自身影片與動畫檔案所取得的測量值進行調整，
就像動畫師研究參考影片一樣。只有我們自己的數字進入程式碼，絕不使用遊戲資料。
遊玩
cargo run --locked --release
你需要 Rust 1.88+、C 編譯器、Linux X11/Wayland 開發函式庫，以及
Vulkan 驅動程式。按 F6 觀看自動花式展示，按 5 切換到
滑雪，按 1–4 選擇單車。
在瀏覽器中（WebGPU）
scripts/web.sh # builds target/www (index.html + JS + wasm)
透過 HTTPS 或 localhost 提供 target/www，例如使用 tailscale serve、
python -m http.server 或任何靜態主機，並在最新的 Chrome、Edge 或
Safari 中開啟。你需要 wasm32-unknown-unknown 目標與
wasm-bindgen-cli 0.2.129，版本與 Cargo.lock 中相同。此建置已針對
速度最佳化；當在 PATH 上或 .tools/binaryen/ 下找到 wasm-opt（binaryen）時會執行，
並在 wasm 旁寫出一份 gzip 壓縮副本（約 8.5 MB）。頁面會下載該副本並
在瀏覽器中解壓縮，附有進度列，因此不需要伺服器壓縮。
頁面會直接開啟循環的滑雪展示。右上角的 ☰ 選單可切換
滑雪與四種單車、啟動任一種展示、挑選花式，並切換暫停、
骨骼、網格、按鍵說明、觸控與全螢幕。
- 觸控（顯示於觸控螢幕）：左搖桿騎乘（踩踏/推進、煞車、
轉向），右搖桿傾斜與翻轉，按鈕則按住跳躍、衝刺/收身、翻轉、
花式/抓板與兩種旋轉，外加單車的翹前輪與平衡滑行。在展示期間觸碰控制項
即可接管。重置與攝影機回正位於選單旁。 - 直向： 視野會變寬而非裁切兩側，且攝影機會向下看，
讓高螢幕顯示雪地而非天空。 - HUD： 面板會縮小，按鍵說明會隱藏。
- 攝影機： 以單指拖曳空白畫面來環繞，捏合來縮放。
內容包含
單車：四種項目（Downhill、Road、Slopestyle、Freeride），各有自己的
避震、動力、抓地力與外觀。
- 物理： 固定 120 Hz 的雙輪模型，包含踩踏、衝刺、煞車、
翹前輪與平衡滑行。每個輪胎都有一份由驅動、煞車與
過彎共用的抓地力額度，因此在彎中重煞會打滑，而前輪打滑半
秒就會失控。高速時你靠傾斜轉向：把手會先朝另一側下沉
（逆操舵），接著單車隨傾斜轉向；步行速度時把手則直接
轉向。用單輪落地後空翻，你必須用
方向鍵平衡，否則會後翻或前翻過把手。 - 旋轉： 翻轉、桶滾與旋轉是單車實際的動量。沒有
預錄的旋轉，所以你可能轉不夠而摔車。騎士以頭、
肩與臀帶動它們。 - 花式： 手、腳與單車花式可自由組合，並有左/右變體。
Superman、can-can、nac-nac、tailwhip、barspin、table、X-up、turndown、Euro table、
invert、crankflip 等更多。 - 騎士： 踩踏時有臀部擺動與腳踝動作，並在過彎時傾斜與外展膝蓋。
衝刺時肩膀拉著把手，將單車左右甩動；極速時騎士會壓低。
落地時透過手臂與腿吸收。
滑雪：
- 滑行： 以滑雪板的側切半徑刻滑（半徑 = 側切 × cos 邊緣角，因此更多
邊緣轉得更緊；超過邊緣抓地力後轉彎會打滑），並有傾角與上下身分離、冰球煞停、
犁式、收身與反向滑行。 - 平地： V 字滑行與雙杖推進，節奏與速度增益與每次
推撐相關。 - 空中： 跳躍時有預壓下蹲與彈起、自由旋轉與翻轉，以及九種
抓板（Mute、Safety、Japan、Tail、Tip、Truck Driver、Daffy、Spread Eagle、Iron Cross）。 - 落地： 寬站姿吸收與短暫打滑。
- 摔車： 剛體滑雪者具備人體關節活動範圍與自碰撞，可讓
四肢彼此避開，並讓身體維持在數毫米之內。關節超過
其強度會斷裂，固定器會釋放，雪杖在高負載下會從拳中扯出，
HUD 會列出斷裂的項目。
兩者共通：
- 摔車： 糟糕的落地、猛烈撞擊（進地太快，或又快又
角度不對）或身體撞擊會將騎士拋入具關節的布娃娃物理，保留
動量。兩者都是在同一個共用求解器上、具人體關節活動範圍與自碰撞的
剛體膠囊四肢。單車騎士會抓緊直到摔車的拉扯超過手腳
所能承受，並在過程中拖曳與推擠單車。 - 起身： 在展示之外，一旦身體靜止（或 3 秒後），
騎士會在摔倒處站起，並在 0.7 秒內混合回騎乘姿勢。
R 仍會返回起點。 - 音效： 程序生成，無音訊檔案：隨速度變化的風聲、輪胎滾動與打滑、雪地
刻滑與打滑嘶聲、落地悶響與摔車撞擊。M 靜音。 - 落地各有不同： 身體會依觸地進來的方向被拋出，並帶有
每次落地的一點隨機性。 - 流暢動作： 渲染的姿勢會在物理 tick 之間混合，且每個動畫
混合都是臨界阻尼彈簧，因此不會有突兀跳動。 - 攝影機： 追蹤攝影機會跟隨你的行進方向，而非旋轉中的
身體。其視野會隨速度變寬，並會抬升越過地形而非
穿入其中。 - F6 展示（每次循環約 3½ 分鐘）：
- 單車： Superman、backflip、360 X-up、frontflip、backflip Superman、barrel roll、
no hands + no feet、barspin + tailwhip、table、360 tuck no-hander、frontflip
can-can、barrel roll no-hander。摔車：nose dive、sideways landing、half barrel、
over-rotated backflip、incomplete flip。 - 滑雪： 360 Mute（slalom）、backflip Safety、540 Japan、frontflip Mute、Daffy、
rodeo Mute（lands switch）、backflip Iron cross、360 Spread eagle（slalom）、switch 180 Tip。
摔車：sideways 270、under-rotated 720、under-rotated backflip、over-rotated backflip、
incomplete front flip。
- 單車： Superman、backflip、360 X-up、frontflip、backflip Superman、barrel roll、
- 外觀： 每位騎士有一個平滑蒙皮身體，由求解後的骨架驅動（摔車後則由
布娃娃物理驅動），地形上有程序生成的雪/土顆粒、會在 45 秒內淡出的輪胎與滑雪痕跡、
SMAA 反鋸齒（桌面版另有環境光遮蔽）
以及 HUD 中的 fps / 影格時間線。 - 除錯檢視： F1 骨架疊層、F2 僅骨架。
控制
| 單車 | 滑雪 | |
|---|---|---|
| 移動 | W 踩踏 · S 煞車 · A/D 轉向 · Shift 衝刺 | W 滑行/雙杖推進 · S 犁式/冰球煞停 · A/D 刻滑 · Shift 收身 |
| 跳躍 | Space 跳 · Q 翹前輪 · Z/X 平衡滑行 | Space：按住下蹲，放開跳躍 |
| 空中 | 方向鍵翻轉/滾轉 · E/T 旋轉 · Ctrl+方向鍵 強力翻轉/滾轉 | 方向鍵翻轉/滾轉 · E/T 旋轉 · Ctrl 完整翻轉 |
| 花式 | U/I/O 選擇手/腳/單車花式 · B 按住 · J/L 側邊 | U 選擇抓板 · B 按住 · J/L 側邊 |
| 切換 | 1–4 項目 · 5 滑雪 | 1–4 回到單車 |
| 攝影機 | 右鍵拖曳環繞 · 滾輪縮放 · C 回正（觸控：拖曳 / 捏合） | 相同 |
| 其他 | F6 展示 · R 重置 · Esc 暫停 · M 音效 · H 說明 · F1/F2 骨架檢視 · F3 記錄狀態 | 相同 |
運作方式
| 檔案 | 角色 |
|---|---|
src/bike.rs |
單車動力學、避震、接觸、摔車偵測 |
src/animation.rs, src/scene.rs |
騎士動畫層、雙骨 IK 骨架、內插渲染 |
src/ragdoll.rs, src/rigid.rs |
單車騎士布娃娃物理，使用與滑雪布娃娃物理共用的剛體求解器 |
src/audio.rs |
程序生成音效 |
src/ski/ |
滑雪者物理、動畫、骨架、布娃娃物理、渲染、展示 |
src/game.rs |
應用程式設定、輸入、追蹤攝影機、HUD |
src/showcase.rs |
單車 F6 腳本，透過正常控制驅動 |
地形是一座白色競技場：解析式高度場，有三個小跳台與一座 32 m
小山，帶有 7 m 起跳坡道通往落地台。使用 cargo test --locked --bins 執行檢查。
限制
- 動畫是程序生成並在此撰寫。它看起來比以往更接近該遊戲，
但它不是該遊戲的動畫，也不聲稱與之同等。 - 碰撞使用代理球體對高度場，而非通用剛體世界。
騎士沒有自碰撞，因此極端花式可能會穿模。 - 瀏覽器建置僅支援 WebGPU；沒有 WebGL 後備。
設計筆記、測量與驗證歷史位於
docs/DEVELOPMENT.md。該檔案也記錄了一個選用的
研究工具 rider-assets。它可以檢視本機遊戲安裝的封存索引，但
它與此處的遊戲是分開的，且遊戲從不執行或需要它。
授權
授權與來源聲明
原始 README 與翻譯沿用 Apache-2.0 授權；本次修改為繁中翻譯、連結與排版調整。可修改的 Markdown、原始 README、LICENSE 與 NOTICE 收錄於頂部文件包。原作遊戲內容與商標不因此獲得授權。
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評論
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