feat(Car): wire NWH Vehicle Physics 2 — scripts only, scene/prefabs still TODO

Code-only first pass. The local Player.prefab (ball) is still in the scene until the user creates the PlayerCar / RemoteCar prefab variants in the Editor. New scripts: - VehicleLocalSetup: attaches name label + colored capsule marker to the local vehicle, registers its Rigidbody with NetworkManager for broadcast. - RemoteVehicleSync: snapshot interpolation for remote vehicles. Disables the NWH VehicleController + every WheelController + every AudioSource on init. Makes the rigidbody kinematic, MovePosition-driven from network. Disables all non-trigger colliders during the 1.5s spawn grace window to avoid ejecting overlapping locals at connect. Adapted scripts: - NetworkManager: RegisterLocalVehicle(Transform, Rigidbody) replaces the FindFirstObjectByType<PlayerController>() lookup. Remote spawn now wires RemoteVehicleSync instead of RemotePlayerController. - LobbyUI: OnConnected drives VehicleLocalSetup.SetupLocal; OnDisconnected toggles NWH.VehicleController instead of PlayerController. - GameManager.SetPlayerActive: toggles VehicleController, not PlayerController. - DebugNetworkUI: live position read from VehicleController.vehicleRigidbody. - ChatUI: drops PlayerController.ResetInputs() (NWH polls Input System each frame; no manual reset needed when chat opens). - StatsTracker: drops dead _pc field; Rigidbody still gets resolved via GetComponent on the host GameObject (will be the vehicle on Car). Frontend (deployed earlier on master): build_ball replaces pretty_build assets.
feat: free-roam mode + fix multiplayer sync + remote player polish
2026-05-20 18:34:40 +02:00 · 2026-05-20 12:25:48 +02:00 · 2026-05-18 08:58:37 +02:00 · 2026-05-18 08:25:25 +02:00 · 2026-05-18 08:22:40 +02:00 · 2026-05-18 00:12:14 +02:00
68 changed files with 16203 additions and 9771 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -23,6 +23,14 @@ frontend/dist/
 build/
 nouveau_build/
 build_mai/
+last_build/
+other_last_build/
+very_last_build/
+pretty_build/
+schema_gen/
+New folder/
+game/connectwebgl.zip
+game/webgl_sharing/

 # Exception: frontend unity-build static assets (committed for deployment)
 !frontend/public/unity-build/
--- a/README.md
+++ b/README.md
@@ -0,0 +1,159 @@
+<div align="center">
+
+<h1>ROLL'D</h1>
+
+<p><strong>Browser-based marble MMO — multiplayer physics, real-time leaderboards, playable directly in your browser.</strong></p>
+
+<p>
+  <img src="https://img.shields.io/badge/Unity-6000.0-black?style=for-the-badge&logo=unity&logoColor=white" alt="Unity 6" />
+  <img src="https://img.shields.io/badge/WebGL-build-E34F26?style=for-the-badge&logo=webgl&logoColor=white" alt="WebGL" />
+  <img src="https://img.shields.io/badge/Colyseus-0.17-6C47FF?style=for-the-badge&logo=node.js&logoColor=white" alt="Colyseus" />
+  <img src="https://img.shields.io/badge/React-19-61DAFB?style=for-the-badge&logo=react&logoColor=black" alt="React" />
+  <img src="https://img.shields.io/badge/Vite-5-646CFF?style=for-the-badge&logo=vite&logoColor=white" alt="Vite" />
+  <img src="https://img.shields.io/badge/Tailwind_CSS-3-38BDF8?style=for-the-badge&logo=tailwindcss&logoColor=white" alt="Tailwind" />
+</p>
+
+<p>
+  <a href="https://rolld.kerboul.me"><img src="https://img.shields.io/badge/Play_Now-rolld.kerboul.me-22c55e?style=for-the-badge&logo=googlechrome&logoColor=white" alt="Play Now" /></a>
+</p>
+
+</div>
+
+---
+
+## What is ROLL'D?
+
+ROLL'D is a multiplayer marble game that runs entirely in the browser via Unity WebGL. Players control a physics-based ball in a shared 3D arena, competing for distance, speed, and style. The game features real-time synchronisation at 60 Hz, in-game chat, and persistent leaderboards.
+
+No install. No account. Just open the page and roll.
+
+---
+
+## Features
+
+- **Real-time multiplayer** - up to 20 players per room, 60 Hz state sync via Colyseus WebSockets
+- **Physics-based gameplay** - Unity Rigidbody, jump charge, gel pads (speed boosts), ball-to-ball bumps
+- **Room lobby** - browse open rooms, create your own, choose your colour and name
+- **In-game chat** - accessible in-game (T key) and on the dedicated website chat page
+- **Live leaderboards** - distance, max speed, jumps, bumps, playtime, updated every 30 seconds
+- **Spectator camera** - orbiting camera while in lobby or after disconnecting
+- **WebGL-native** - no plugins, no downloads, runs in Chrome/Firefox/Edge
+
+---
+
+## Architecture
+
+```
+rolld/
+├── game/                  # Unity 6 project (WebGL build)
+│   └── Assets/Scripts/
+│       ├── Network/       # Colyseus SDK integration, schema, lobby UI
+│       ├── Stats/         # StatsTracker - periodic HTTP upload
+│       └── UI/            # IMGUI in-game HUD, chat, keybinds
+│
+├── rolld_backend/game/    # Colyseus 0.17 game server (Node.js)
+│   └── src/
+│       ├── rooms/         # ArenaRoom - game state machine
+│       ├── schema/        # Colyseus schema (Player + GameState)
+│       ├── stats/         # StatsManager - JSON persistence
+│       └── chat/          # ChatManager - in-memory history
+│
+└── frontend/              # React + Vite + Tailwind SPA
+    └── src/
+        ├── pages/         # Home, Stats leaderboard, Chat
+        └── components/    # NavBar, GameCanvas (Unity embed)
+```
+
+### Network flow
+
+```
+Browser
+  └── Unity WebGL (GameCanvas iframe)
+        └── Colyseus SDK (WebSocket wss://)
+              └── ArenaRoom (Node.js)
+                    └── Broadcast state @60 Hz
+
+Browser
+  └── React SPA
+        └── REST API (HTTPS)
+              ├── GET  /stats/leaderboard/:key
+              ├── GET  /chat/history?since=
+              └── POST /stats/update  (from Unity every 30s)
+```
+
+---
+
+## Tech stack
+
+| Layer | Technology |
+|---|---|
+| Game engine | Unity 6 LTS, C# |
+| Multiplayer | Colyseus 0.17 (Node.js + WebSocket) |
+| Frontend | React 19, Vite 5, Tailwind CSS 3 |
+| Deployment | Docker, Coolify, nginx |
+| Self-hosted | Proxmox LXC, Gitea, Traefik reverse proxy |
+
+---
+
+## Running locally
+
+### Prerequisites
+
+- Node.js 20+
+- Unity 6000.x (for game builds only)
+
+### Game server
+
+```bash
+cd rolld_backend/game
+npm install
+npm run dev
+```
+
+Server starts on `ws://localhost:2567`.
+
+### Frontend
+
+```bash
+cd frontend
+npm install
+npm run dev
+```
+
+Open `http://localhost:5173`. The frontend points to the production game server by default - edit `src/pages/StatsPage.jsx` and `src/components/GameCanvas.jsx` to switch to localhost.
+
+### Unity (optional)
+
+Open `game/` in Unity 6. The server URL is hardcoded in `Assets/Scripts/Network/NetworkManager.cs`. Switch to `wss://game.rolld.kerboul.me` for prod or `ws://localhost:2567` for local testing.
+
+---
+
+## Controls
+
+| Key | Action |
+|---|---|
+| WASD / Arrow keys | Move |
+| Space (hold) | Charge jump |
+| Space (release) | Jump |
+| T | Open chat |
+| Escape | Close chat |
+| Tab | Show keybindings |
+| Backtick (`) | Debug network info |
+
+---
+
+## Live deployment
+
+<p>
+  <img src="https://img.shields.io/badge/Frontend-rolld.kerboul.me-22c55e?style=flat-square&logo=nginx&logoColor=white" alt="Frontend" />
+  <img src="https://img.shields.io/badge/Game_server-game.rolld.kerboul.me-6C47FF?style=flat-square&logo=node.js&logoColor=white" alt="Game server" />
+  <img src="https://img.shields.io/badge/Self_hosted-Proxmox_homelab-E57000?style=flat-square&logo=proxmox&logoColor=white" alt="Self-hosted" />
+</p>
+
+The stack runs on a self-hosted Proxmox homelab cluster. Coolify handles container orchestration and auto-deployment on git push. Traefik manages HTTPS termination.
+
+---
+
+## Licence
+
+MIT - do whatever you want with it.
--- a/frontend/public/unity-build/.gitkeep
+++ b/frontend/public/unity-build/.gitkeep
@@ -1,2 +0,0 @@
-# Unity WebGL build goes here
-Place your Unity WebGL build files in a `Build/` subfolder.
--- a/frontend/public/unity-build/Build/build_ball.data
+++ b/frontend/public/unity-build/Build/build_ball.data
--- a/frontend/public/unity-build/Build/build_ball.framework.js
+++ b/frontend/public/unity-build/Build/build_ball.framework.js
--- a/frontend/public/unity-build/Build/build_ball.loader.js
+++ b/frontend/public/unity-build/Build/build_ball.loader.js
--- a/frontend/public/unity-build/Build/build_ball.wasm
+++ b/frontend/public/unity-build/Build/build_ball.wasm
--- a/frontend/public/unity-build/Build/build_mai.data
+++ b/frontend/public/unity-build/Build/build_mai.data
--- a/frontend/public/unity-build/Build/build_mai.framework.js
+++ b/frontend/public/unity-build/Build/build_mai.framework.js
--- a/frontend/public/unity-build/index.html
+++ b/frontend/public/unity-build/index.html
@@ -52,12 +52,12 @@
      }

      var buildUrl = "Build";
-      var loaderUrl = buildUrl + "/nouveau_build.loader.js";
+      var loaderUrl = buildUrl + "/build_ball.loader.js";
      var config = {
        arguments: [],
-        dataUrl: buildUrl + "/nouveau_build.data",
-        frameworkUrl: buildUrl + "/nouveau_build.framework.js",
-        codeUrl: buildUrl + "/nouveau_build.wasm",
+        dataUrl: buildUrl + "/build_ball.data",
+        frameworkUrl: buildUrl + "/build_ball.framework.js",
+        codeUrl: buildUrl + "/build_ball.wasm",
        streamingAssetsUrl: "StreamingAssets",
        companyName: "DefaultCompany",
        productName: "BallProject",
--- a/frontend/src/components/GameCanvas.jsx
+++ b/frontend/src/components/GameCanvas.jsx
@@ -3,8 +3,8 @@ import { useState, useEffect, useCallback } from 'react'
 // Check if Unity build files exist
 const UNITY_BUILD_PATH = '/unity-build/Build'
 // Cache-busting version — update this after each Unity build
-const UNITY_BUILD_VERSION = '20260517b'
-const BUILD_PREFIX = 'build_mai'
+const UNITY_BUILD_VERSION = '20260520d'
+const BUILD_PREFIX = 'build_ball'
 const LOADER_URL = `${UNITY_BUILD_PATH}/${BUILD_PREFIX}.loader.js?v=${UNITY_BUILD_VERSION}`


--- a/frontend/src/pages/StatsPage.jsx
+++ b/frontend/src/pages/StatsPage.jsx
@@ -4,16 +4,17 @@ import { theme } from '../env'
 const SERVER = 'https://game.rolld.kerboul.me'

 const TABS = [
-  { key: 'totalDistance', label: 'Distance', unit: 'm', format: v => Math.round(v).toLocaleString('fr-FR') },
-  { key: 'maxSpeed', label: 'Vitesse max', unit: 'm/s', format: v => v.toFixed(1) },
-  { key: 'totalJumps', label: 'Sauts', unit: '', format: v => v.toLocaleString('fr-FR') },
-  { key: 'bestRaceTime', label: 'Meilleur temps', unit: '', format: v => {
-    const m = Math.floor(v / 60)
-    const s = (v % 60).toFixed(2).padStart(5, '0')
-    return `${m}:${s}`
+  { key: 'totalDistance', label: 'Distance',    unit: 'm',   format: v => Math.round(v ?? 0).toLocaleString('fr-FR') },
+  { key: 'maxSpeed',      label: 'Vitesse max', unit: 'm/s', format: v => (v ?? 0).toFixed(1) },
+  { key: 'totalJumps',   label: 'Sauts',       unit: '',    format: v => (v ?? 0).toLocaleString('fr-FR') },
+  { key: 'bumpsGiven',   label: 'Bumps',       unit: '',    format: v => (v ?? 0).toLocaleString('fr-FR') },
+  { key: 'totalPlaytime',label: 'Temps de jeu',unit: '',    format: v => {
+    const total = Math.round(v ?? 0)
+    const h = Math.floor(total / 3600)
+    const m = Math.floor((total % 3600) / 60)
+    const s = total % 60
+    return h > 0 ? `${h}h ${m}m` : `${m}m ${s}s`
  }},
-  { key: 'racesPlayed', label: 'Courses', unit: '', format: v => v.toLocaleString('fr-FR') },
-  { key: 'bumpsGiven', label: 'Bumps', unit: '', format: v => v.toLocaleString('fr-FR') },
 ]

 export default function StatsPage() {
@@ -38,6 +39,7 @@ export default function StatsPage() {
  }, [])

  useEffect(() => {
+    setRows([])
    fetchLeaderboard(activeTab)
    const id = setInterval(() => fetchLeaderboard(activeTab), 30_000)
    return () => clearInterval(id)
@@ -124,7 +126,7 @@ export default function StatsPage() {
                      {row.name}
                    </td>
                    <td className="px-6 py-4 text-right font-mono text-sm" style={{ color: theme.accentLight }}>
-                      {currentTab.format(row[activeTab])}
+                      {currentTab.format(row.value)}
                      {currentTab.unit && <span className="text-rolld-muted ml-1">{currentTab.unit}</span>}
                    </td>
                  </tr>
--- a/game/Assets/Bouncy.physicMaterial
+++ b/game/Assets/Bouncy.physicMaterial
@@ -1,15 +0,0 @@
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-%TAG !u! tag:unity3d.com,2011:
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-  m_DynamicFriction: 0.6
-  m_StaticFriction: 0.6
-  m_Bounciness: 0.74
-  m_FrictionCombine: 0
-  m_BounceCombine: 0
--- a/game/Assets/Bouncy.physicMaterial.meta
+++ b/game/Assets/Bouncy.physicMaterial.meta
@@ -1,8 +0,0 @@
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-NativeFormatImporter:
-  externalObjects: {}
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--- a/game/Assets/GelBleu.physicMaterial
+++ b/game/Assets/GelBleu.physicMaterial
@@ -1,15 +0,0 @@
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-%TAG !u! tag:unity3d.com,2011:
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-  m_DynamicFriction: 0
-  m_StaticFriction: 0
-  m_Bounciness: 1
-  m_FrictionCombine: 1
-  m_BounceCombine: 3
--- a/game/Assets/GelBleu.physicMaterial.meta
+++ b/game/Assets/GelBleu.physicMaterial.meta
@@ -1,8 +0,0 @@
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--- a/game/Assets/GelOrange.physicMaterial
+++ b/game/Assets/GelOrange.physicMaterial
@@ -1,15 +0,0 @@
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-  m_Bounciness: 0.74
-  m_FrictionCombine: 0
-  m_BounceCombine: 0
--- a/game/Assets/GelOrange.physicMaterial.meta
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--- a/game/Assets/GelViolet.physicMaterial
+++ b/game/Assets/GelViolet.physicMaterial
@@ -1,15 +0,0 @@
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-  m_Bounciness: 0
-  m_FrictionCombine: 3
-  m_BounceCombine: 0
--- a/game/Assets/GelViolet.physicMaterial.meta
+++ b/game/Assets/GelViolet.physicMaterial.meta
@@ -1,8 +0,0 @@
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--- a/game/Assets/Material/CheckpointMat.mat
+++ b/game/Assets/Material/CheckpointMat.mat
@@ -8,8 +8,8 @@ Material:
  m_PrefabInstance: {fileID: 0}
  m_PrefabAsset: {fileID: 0}
  m_Name: CheckpointMat
-  m_Shader: {fileID: 46, guid: 0000000000000000f000000000000000, type: 0}
-  m_Parent: {fileID: 0}
+  m_Shader: {fileID: -6465566751694194690, guid: c52a5eb90c085474582a223ce9475866, type: 3}
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  m_ValidKeywords: []
  m_InvalidKeywords: []
@@ -22,63 +22,22 @@ Material:
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    m_Ints: []
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+    m_Floats: []
+    m_Colors: []
  m_BuildTextureStacks: []
  m_AllowLocking: 1
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+  version: 0
--- a/game/Assets/New
+++ b/game/Assets/New
--- a/game/Assets/Normal.physicMaterial
+++ b/game/Assets/Normal.physicMaterial
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--- a/game/Assets/PlayerController.cs
+++ b/game/Assets/PlayerController.cs
@@ -180,20 +180,18 @@ public class PlayerController : MonoBehaviour
    // Update is called once per frame
    void Update()
    {
-        // Toggle cursor lock/unlock avec clic droit (disabled when keybind menu is open)
-        if (!KeyBindingUI.IsVisible && Mouse.current != null && Mouse.current.rightButton.wasPressedThisFrame)
+        // Cursor lock: right-click unlocks, left-click re-locks (disabled when any UI panel is open)
+        if (!ChatUI.IsVisible && !KeyBindingUI.IsVisible && Mouse.current != null)
        {
-            if (Cursor.lockState == CursorLockMode.Locked)
+            if (Cursor.lockState == CursorLockMode.Locked && Mouse.current.rightButton.wasPressedThisFrame)
            {
                Cursor.lockState = CursorLockMode.None;
                Cursor.visible = true;
-                Debug.Log("Cursor UNLOCKED");
            }
-            else
+            else if (Cursor.lockState != CursorLockMode.Locked && Mouse.current.leftButton.wasPressedThisFrame)
            {
                Cursor.lockState = CursorLockMode.Locked;
                Cursor.visible = false;
-                Debug.Log("Cursor LOCKED");
            }
        }

@@ -374,33 +372,19 @@ public class PlayerController : MonoBehaviour

    public void OnJump(InputAction.CallbackContext context)
    {
+        if (ChatUI.IsVisible) { isJumpPressed = false; jumpPressTime = 0f; return; }
+
        if (context.started)
        {
            isJumpPressed = true;
            jumpPressTime = 0f;
            StatsTracker.Instance?.RegisterJump();
-            Debug.Log("Jump Started");
-        }
-        else if (context.performed)
-        {
-            // Action validée (utile pour saut immédiat aussi)
-            Debug.Log("Jump Performed");
        }
        else if (context.canceled)
        {
-            // Touche relâchée
            float jumpForceFactor = Mathf.Clamp01(jumpPressTime / maxJumpHoldTime);
            if (IsGrounded())
-            {
                PerformJump(jumpForceFactor * JumpForce);
-                Debug.Log($"Jump Released after {jumpPressTime}s -> Force factor: {jumpForceFactor}");
-            }
-            else
-            {
-                Debug.Log("Jump Released but not grounded.");
-            }
-
-            // Reset jump state so gauge goes back to 0
            isJumpPressed = false;
            jumpPressTime = 0f;
        }
@@ -424,75 +408,30 @@ public class PlayerController : MonoBehaviour

    public void OnForward(InputAction.CallbackContext context)
    {
-        if (context.started)
-        {
-            isForwardHeld = true;
-            Debug.Log("Forward Action Started");
-        }
-        else if (context.performed)
-        {
-            // Forward action performed
-            Debug.Log("Forward Action Performed");
-        }
-        else if (context.canceled)
-        {
-            isForwardHeld = false;
-            Debug.Log("Forward Action Canceled");
-        }
+        if (ChatUI.IsVisible) { isForwardHeld = false; return; }
+        if (context.started) isForwardHeld = true;
+        else if (context.canceled) isForwardHeld = false;
    }

    public void OnBackwards(InputAction.CallbackContext context)
    {
-        if (context.started)
-        {
-            isBackwardsHeld = true;
-            Debug.Log("Backwards Action Started");
-        }
-        else if (context.performed)
-        {
-            Debug.Log("Backwards Action Performed");
-        }
-        else if (context.canceled)
-        {
-            isBackwardsHeld = false;
-            Debug.Log("Backwards Action Canceled");
-        }
+        if (ChatUI.IsVisible) { isBackwardsHeld = false; return; }
+        if (context.started) isBackwardsHeld = true;
+        else if (context.canceled) isBackwardsHeld = false;
    }

    public void OnLeft(InputAction.CallbackContext context)
    {
-        if (context.started)
-        {
-            isLeftHeld = true;
-            Debug.Log("Left Action Started");
-        }
-        else if (context.performed)
-        {
-            Debug.Log("Left Action Performed");
-        }
-        else if (context.canceled)
-        {
-            isLeftHeld = false;
-            Debug.Log("Left Action Canceled");
-        }
+        if (ChatUI.IsVisible) { isLeftHeld = false; return; }
+        if (context.started) isLeftHeld = true;
+        else if (context.canceled) isLeftHeld = false;
    }

    public void OnRight(InputAction.CallbackContext context)
    {
-        if (context.started)
-        {
-            isRightHeld = true;
-            Debug.Log("Right Action Started");
-        }
-        else if (context.performed)
-        {
-            Debug.Log("Right Action Performed");
-        }
-        else if (context.canceled)
-        {
-            isRightHeld = false;
-            Debug.Log("Right Action Canceled");
-        }
+        if (ChatUI.IsVisible) { isRightHeld = false; return; }
+        if (context.started) isRightHeld = true;
+        else if (context.canceled) isRightHeld = false;
    }

    // --- Bump collision with remote players ---
@@ -510,6 +449,9 @@ public class PlayerController : MonoBehaviour
    {
        var remote = other.GetComponent<RemotePlayerController>();
        if (remote == null) return;
+        // Ignore bumps during the remote's post-spawn grace window — otherwise
+        // spawn-time overlap with the kinematic remote ball ejects us upward.
+        if (!remote.BumpReady) return;

        int id = other.gameObject.GetInstanceID();
        if (_lastBumpTime.TryGetValue(id, out float lastTime) && Time.time - lastTime < bumpCooldown)
@@ -564,6 +506,16 @@ public class PlayerController : MonoBehaviour
        _isSquashing = false;
    }

+    public void ResetInputs()
+    {
+        isForwardHeld = false;
+        isBackwardsHeld = false;
+        isLeftHeld = false;
+        isRightHeld = false;
+        isJumpPressed = false;
+        jumpPressTime = 0f;
+    }
+
    void OnDestroy()
    {
        // Clean up name label (it's not parented to the ball)
--- a/game/Assets/PostProcessing
+++ b/game/Assets/PostProcessing
@@ -1,38 +0,0 @@
-%YAML 1.1
-%TAG !u! tag:unity3d.com,2011:
--- !u!114 &-670956545734759409
-MonoBehaviour:
-  m_ObjectHideFlags: 3
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 0}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: b94fcd11afffcb142908bfcb1e261fba, type: 3}
-  m_Name: MotionBlur
-  m_EditorClassIdentifier: Unity.Postprocessing.Runtime::UnityEngine.Rendering.PostProcessing.MotionBlur
-  active: 1
-  enabled:
-    overrideState: 1
-    value: 1
-  shutterAngle:
-    overrideState: 0
-    value: 270
-  sampleCount:
-    overrideState: 0
-    value: 10
--- !u!114 &11400000
-MonoBehaviour:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 0}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 8e6292b2c06870d4495f009f912b9600, type: 3}
-  m_Name: PostProcessing Profile
-  m_EditorClassIdentifier: Unity.Postprocessing.Runtime::UnityEngine.Rendering.PostProcessing.PostProcessProfile
-  settings:
-  - {fileID: -670956545734759409}
--- a/game/Assets/PostProcessing
+++ b/game/Assets/PostProcessing
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: fc446179a9ae97a4a8ad5c8aa1c2dd47
-NativeFormatImporter:
-  externalObjects: {}
-  mainObjectFileID: 11400000
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/Prefabs/NPCBall.prefab
+++ b/game/Assets/Prefabs/NPCBall.prefab
@@ -89,7 +89,7 @@ MeshRenderer:
  m_RenderingLayerMask: 1
  m_RendererPriority: 0
  m_Materials:
-  - {fileID: 10303, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: -876546973899608171, guid: 9535ecd79e34e1341bfe13a806935455, type: 3}
  m_StaticBatchInfo:
    firstSubMesh: 0
    subMeshCount: 0
--- a/game/Assets/Readme.asset
+++ b/game/Assets/Readme.asset
@@ -1,34 +0,0 @@
-%YAML 1.1
-%TAG !u! tag:unity3d.com,2011:
--- !u!114 &11400000
-MonoBehaviour:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 0}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: fcf7219bab7fe46a1ad266029b2fee19, type: 3}
-  m_Name: Readme
-  m_EditorClassIdentifier: 
-  icon: {fileID: 2800000, guid: 727a75301c3d24613a3ebcec4a24c2c8, type: 3}
-  title: URP Empty Template
-  sections:
-  - heading: Welcome to the Universal Render Pipeline
-    text: This template includes the settings and assets you need to start creating with the Universal Render Pipeline.
-    linkText: 
-    url:
-  - heading: URP Documentation
-    text:
-    linkText: Read more about URP
-    url: https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@latest
-  - heading: Forums
-    text:
-    linkText: Get answers and support
-    url: https://forum.unity.com/forums/universal-render-pipeline.383/
-  - heading: Report bugs
-    text:
-    linkText: Submit a report
-    url: https://unity3d.com/unity/qa/bug-reporting
-  loadedLayout: 1
--- a/game/Assets/Readme.asset.meta
+++ b/game/Assets/Readme.asset.meta
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 8105016687592461f977c054a80ce2f2
-NativeFormatImporter:
-  externalObjects: {}
-  mainObjectFileID: 0
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/Resources/Normal.physicMaterial
+++ b/game/Assets/Resources/Normal.physicMaterial
@@ -10,6 +10,6 @@ PhysicsMaterial:
  serializedVersion: 2
  m_DynamicFriction: 0.6
  m_StaticFriction: 0.6
-  m_Bounciness: 0
+  m_Bounciness: 0.2
  m_FrictionCombine: 0
  m_BounceCombine: 0
--- a/game/Assets/Scenes/Tutorial.unity
+++ b/game/Assets/Scenes/Tutorial.unity
--- a/game/Assets/Scripts/CameraOrbitKeyboard.cs
+++ b/game/Assets/Scripts/CameraOrbitKeyboard.cs
@@ -29,7 +29,9 @@ public class CameraOrbitKeyboard : MonoBehaviour
    {
        // On gère la souris nous-mêmes
        if (_axisController != null) _axisController.enabled = false;
-        LockCursor();
+        // Only lock cursor if no UI panel is open
+        if (!ChatUI.IsVisible && !KeyBindingUI.IsVisible)
+            LockCursor();
    }

    void OnDisable()
@@ -55,16 +57,16 @@ public class CameraOrbitKeyboard : MonoBehaviour

        var mouse = Mouse.current;

-        // Clic droit = toggle lock
-        if (mouse != null && mouse.rightButton.wasPressedThisFrame)
+        // Right-click unlocks, left-click re-locks (consistent with PlayerController)
+        if (!ChatUI.IsVisible && !KeyBindingUI.IsVisible && mouse != null)
        {
-            if (Cursor.lockState == CursorLockMode.Locked)
+            if (Cursor.lockState == CursorLockMode.Locked && mouse.rightButton.wasPressedThisFrame)
                UnlockCursor();
-            else
+            else if (Cursor.lockState != CursorLockMode.Locked && mouse.leftButton.wasPressedThisFrame)
                LockCursor();
        }

-        if (KeyBindingUI.IsVisible) return;
+        if (KeyBindingUI.IsVisible || ChatUI.IsVisible) return;

        // Souris — seulement quand locked (delta infini, sans accrochage au bord)
        if (Cursor.lockState == CursorLockMode.Locked && mouse != null)
--- a/game/Assets/Scripts/GameManager.cs
+++ b/game/Assets/Scripts/GameManager.cs
@@ -178,8 +178,8 @@ public class GameManager : MonoBehaviour
    {
        if (playerRoot == null) return;
        playerRoot.SetActive(active);
-        var pc = playerRoot.GetComponentInChildren<PlayerController>(true);
-        if (pc != null) pc.enabled = active;
+        var vehicle = playerRoot.GetComponentInChildren<NWH.VehiclePhysics2.VehicleController>(true);
+        if (vehicle != null) vehicle.enabled = active;

        if (active)
        {
--- a/game/Assets/Scripts/Network/DebugNetworkUI.cs
+++ b/game/Assets/Scripts/Network/DebugNetworkUI.cs
@@ -116,12 +116,12 @@ public class DebugNetworkUI : MonoBehaviour
        if (state != null)
            ImGuiSkin.DrawField("Server Pos", $"({state.x:F1}, {state.y:F1}, {state.z:F1})");

-        var pc = FindFirstObjectByType<PlayerController>();
-        if (pc != null && pc.isActiveAndEnabled)
+        var vehicle = FindFirstObjectByType<NWH.VehiclePhysics2.VehicleController>();
+        if (vehicle != null && vehicle.isActiveAndEnabled)
        {
-            var pos = pc.transform.position;
+            var pos = vehicle.transform.position;
            ImGuiSkin.DrawField("Live Pos", $"({pos.x:F1}, {pos.y:F1}, {pos.z:F1})");
-            var rb = pc.GetComponent<Rigidbody>();
+            var rb = vehicle.vehicleRigidbody;
            if (rb != null)
            {
                var v = rb.linearVelocity;
--- a/game/Assets/Scripts/Network/Generated/GameState.cs
+++ b/game/Assets/Scripts/Network/Generated/GameState.cs
@@ -0,0 +1,43 @@
+// 
+// THIS FILE HAS BEEN GENERATED AUTOMATICALLY
+// DO NOT CHANGE IT MANUALLY UNLESS YOU KNOW WHAT YOU'RE DOING
+// 
+// GENERATED USING @colyseus/schema 4.0.15
+// 
+
+using Colyseus.Schema;
+#if UNITY_5_3_OR_NEWER
+using UnityEngine.Scripting;
+#endif
+
+namespace RolldSchema {
+	public partial class GameState : Schema {
+#if UNITY_5_3_OR_NEWER
+[Preserve]
+#endif
+public GameState() { }
+		[Type(0, "map", typeof(MapSchema<Player>))]
+		public MapSchema<Player> players = null;
+
+		[Type(1, "string")]
+		public string phase = default(string);
+
+		[Type(2, "float32")]
+		public float countdown = default(float);
+
+		[Type(3, "int8")]
+		public sbyte roundNumber = default(sbyte);
+
+		[Type(4, "int8")]
+		public sbyte totalRounds = default(sbyte);
+
+		[Type(5, "int8")]
+		public sbyte playersAlive = default(sbyte);
+
+		[Type(6, "string")]
+		public string gameMode = default(string);
+
+		[Type(7, "string")]
+		public string winnerName = default(string);
+	}
+}
--- a/game/Assets/Scripts/Network/Generated/GameState.cs.meta
+++ b/game/Assets/Scripts/Network/Generated/GameState.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: c7c8bd319747bfa4a82569b7dc0458be
--- a/game/Assets/Scripts/Network/Generated/Player.cs
+++ b/game/Assets/Scripts/Network/Generated/Player.cs
@@ -0,0 +1,85 @@
+// 
+// THIS FILE HAS BEEN GENERATED AUTOMATICALLY
+// DO NOT CHANGE IT MANUALLY UNLESS YOU KNOW WHAT YOU'RE DOING
+// 
+// GENERATED USING @colyseus/schema 4.0.15
+// 
+
+using Colyseus.Schema;
+#if UNITY_5_3_OR_NEWER
+using UnityEngine.Scripting;
+#endif
+
+namespace RolldSchema {
+	public partial class Player : Schema {
+#if UNITY_5_3_OR_NEWER
+[Preserve]
+#endif
+public Player() { }
+		[Type(0, "float32")]
+		public float x = default(float);
+
+		[Type(1, "float32")]
+		public float y = default(float);
+
+		[Type(2, "float32")]
+		public float z = default(float);
+
+		[Type(3, "float32")]
+		public float vx = default(float);
+
+		[Type(4, "float32")]
+		public float vy = default(float);
+
+		[Type(5, "float32")]
+		public float vz = default(float);
+
+		[Type(6, "float32")]
+		public float rx = default(float);
+
+		[Type(7, "float32")]
+		public float ry = default(float);
+
+		[Type(8, "float32")]
+		public float rz = default(float);
+
+		[Type(9, "float32")]
+		public float rw = default(float);
+
+		[Type(10, "float64")]
+		public double t = default(double);
+
+		[Type(11, "string")]
+		public string name = default(string);
+
+		[Type(12, "float32")]
+		public float colorR = default(float);
+
+		[Type(13, "float32")]
+		public float colorG = default(float);
+
+		[Type(14, "float32")]
+		public float colorB = default(float);
+
+		[Type(15, "float32")]
+		public float avx = default(float);
+
+		[Type(16, "float32")]
+		public float avy = default(float);
+
+		[Type(17, "float32")]
+		public float avz = default(float);
+
+		[Type(18, "boolean")]
+		public bool isEliminated = default(bool);
+
+		[Type(19, "boolean")]
+		public bool isQualified = default(bool);
+
+		[Type(20, "boolean")]
+		public bool isReady = default(bool);
+
+		[Type(21, "int8")]
+		public sbyte checkpointIndex = default(sbyte);
+	}
+}
--- a/game/Assets/Scripts/Network/Generated/Player.cs.meta
+++ b/game/Assets/Scripts/Network/Generated/Player.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 1d8173f164ec47946a28c13d9638d8cf
--- a/game/Assets/Scripts/Network/LobbyUI.cs
+++ b/game/Assets/Scripts/Network/LobbyUI.cs
@@ -118,25 +118,22 @@ public class LobbyUI : MonoBehaviour
        var nm = NetworkManager.Instance;
        if (nm != null && playerRoot != null)
        {
-            var pc = playerRoot.GetComponentInChildren<PlayerController>(true);
-            if (pc != null)
+            var setup = playerRoot.GetComponentInChildren<VehicleLocalSetup>(true);
+            if (setup != null)
            {
+                var vehicle = setup.GetComponent<NWH.VehiclePhysics2.VehicleController>();
+                var rb = vehicle != null ? vehicle.vehicleRigidbody : setup.GetComponent<Rigidbody>();
                var localState = nm.GetLocalPlayerState();
-                if (localState != null)
+                if (localState != null && rb != null)
                {
                    Vector3 spawnPos = new Vector3(localState.x, localState.y, localState.z);
-                    var rb = pc.GetComponent<Rigidbody>();
-                    if (rb != null)
-                    {
-                        rb.linearVelocity  = Vector3.zero;
-                        rb.angularVelocity = Vector3.zero;
-                        rb.position = spawnPos;
-                    }
-                    pc.transform.position = spawnPos;
-                    pc.SetSpawnPosition(spawnPos);
+                    rb.linearVelocity  = Vector3.zero;
+                    rb.angularVelocity = Vector3.zero;
+                    rb.position = spawnPos;
+                    setup.transform.position = spawnPos;
                }
-                pc.enabled = true;
-                pc.SetupLocalPlayer(nm.LocalPlayerName, nm.LocalPlayerColor);
+                if (vehicle != null) vehicle.enabled = true;
+                setup.SetupLocal(nm.LocalPlayerName, nm.LocalPlayerColor);
            }
        }

@@ -160,8 +157,8 @@ public class LobbyUI : MonoBehaviour

        if (playerRoot != null)
        {
-            var pc = playerRoot.GetComponentInChildren<PlayerController>(true);
-            if (pc != null) pc.enabled = false;
+            var vehicle = playerRoot.GetComponentInChildren<NWH.VehiclePhysics2.VehicleController>(true);
+            if (vehicle != null) vehicle.enabled = false;
            playerRoot.SetActive(false);
        }

--- a/game/Assets/Scripts/Network/NetworkManager.cs
+++ b/game/Assets/Scripts/Network/NetworkManager.cs
@@ -5,6 +5,7 @@ using UnityEngine;
 using UnityEngine.Networking;
 using Colyseus;
 using Colyseus.Schema;
+using RolldSchema;

 /// <summary>
 /// Singleton managing the Colyseus connection, room lifecycle, remote player spawning,
@@ -29,7 +30,7 @@ public class NetworkManager : MonoBehaviour
    public string LastError { get; private set; } = "";

    // Expose remote players for debug UI
-    public Dictionary<string, RemotePlayerController> RemotePlayers => _remotePlayers;
+    public Dictionary<string, RemoteVehicleSync> RemotePlayers => _remotePlayers;

    // Local player info (set during join)
    public string LocalPlayerName { get; private set; } = "";
@@ -70,9 +71,9 @@ public class NetworkManager : MonoBehaviour

    // --- Internals ---
    private Client _client;
-    private Room<NetworkState> _room;
-    private StateCallbackStrategy<NetworkState> _callbacks;
-    private readonly Dictionary<string, RemotePlayerController> _remotePlayers = new();
+    private Room<GameState> _room;
+    private StateCallbackStrategy<GameState> _callbacks;
+    private readonly Dictionary<string, RemoteVehicleSync> _remotePlayers = new();
    private float _broadcastTimer;
    private const float BROADCAST_INTERVAL = 0.01667f; // ~60/sec
    private bool _isJoining;
@@ -111,7 +112,7 @@ public class NetworkManager : MonoBehaviour
        }
    }

-    public NetworkPlayer GetLocalPlayerState()
+    public Player GetLocalPlayerState()
    {
        if (_room == null || _room.State.players == null || string.IsNullOrEmpty(LocalSessionId)) return null;
        _room.State.players.TryGetValue(LocalSessionId, out var player);
@@ -154,6 +155,7 @@ public class NetworkManager : MonoBehaviour
        _callbacks.OnRemove(state => state.players, (key, player) => OnPlayerRemove(key, player));
        _callbacks.Listen(state => state.phase, (v, _) => _OnPhaseChanged(v));
        _callbacks.Listen(state => state.countdown, (v, _) => OnCountdownChanged?.Invoke(v));
+        _callbacks.Listen(state => state.playersAlive, (newVal, oldVal) => { if (GameHUD.Instance != null) GameHUD.Instance.SetPlayersAlive((int)newVal); });

        _room.OnMessage<EliminatedMsg>("eliminated", msg => { OnEliminated?.Invoke(msg.sessionId, msg.reason); });
        _room.OnMessage<QualifiedMsg> ("qualified",  msg => { OnQualified?.Invoke(msg.sessionId); });
@@ -163,6 +165,13 @@ public class NetworkManager : MonoBehaviour
        _room.OnMessage<ChatUI.ChatMessage>("chat",  msg => { ChatUI.Instance?.ReceiveChatMessage(msg); });
        _room.OnLeave += OnRoomLeave;

+        // Seed players already present in the room (state decoded before callbacks were registered)
+        if (_room.State.players != null)
+        {
+            foreach (var key in _room.State.players.Keys)
+                OnPlayerAdd((string)key, (Player)_room.State.players[key]);
+        }
+
        OnConnected?.Invoke();
    }

@@ -182,7 +191,7 @@ public class NetworkManager : MonoBehaviour
        PrepareJoin(playerName, color);
        try
        {
-            _room = await _client.JoinOrCreate<NetworkState>("arena", BuildJoinOptions(playerName, color));
+            _room = await _client.JoinOrCreate<GameState>("arena", BuildJoinOptions(playerName, color));
            FinishJoin();
        }
        catch (Exception e) { HandleJoinError(e); }
@@ -195,7 +204,7 @@ public class NetworkManager : MonoBehaviour
        PrepareJoin(playerName, color);
        try
        {
-            _room = await _client.JoinById<NetworkState>(roomId, BuildJoinOptions(playerName, color));
+            _room = await _client.JoinById<GameState>(roomId, BuildJoinOptions(playerName, color));
            FinishJoin();
        }
        catch (Exception e) { HandleJoinError(e); }
@@ -210,7 +219,7 @@ public class NetworkManager : MonoBehaviour
        {
            var opts = BuildJoinOptions(playerName, color);
            if (roomName != null) opts["roomName"] = roomName;
-            _room = await _client.Create<NetworkState>("arena", opts);
+            _room = await _client.Create<GameState>("arena", opts);
            FinishJoin();
        }
        catch (Exception e) { HandleJoinError(e); }
@@ -251,21 +260,27 @@ public class NetworkManager : MonoBehaviour
        OnPhaseChanged?.Invoke(phase);
    }

-    private void OnPlayerAdd(string sessionId, NetworkPlayer player)
+    private void OnPlayerAdd(string sessionId, Player player)
    {
        Debug.Log($"[Network] Player joined: {sessionId} ({player.name})");
        PlayerCount = _room.State.players?.Count ?? 0;

        if (sessionId == LocalSessionId) return;
+        if (_remotePlayers.ContainsKey(sessionId)) return; // prevent duplicate spawn

-        if (remotePlayerPrefab != null)
        {
            Vector3 spawnPos = new Vector3(player.x, player.y, player.z);
-            GameObject remoteBall = Instantiate(remotePlayerPrefab, spawnPos, Quaternion.identity);
-            remoteBall.name = $"RemotePlayer_{player.name}_{sessionId[..6]}";
+            if (remotePlayerPrefab == null)
+            {
+                Debug.LogError("[Network] remotePlayerPrefab not assigned — cannot spawn remote vehicle.");
+                return;
+            }
+            GameObject remote = Instantiate(remotePlayerPrefab, spawnPos, Quaternion.identity);
+            remote.transform.position = spawnPos;
+            remote.name = $"RemoteVehicle_{player.name}_{sessionId[..6]}";

-            var controller = remoteBall.GetComponent<RemotePlayerController>()
-                          ?? remoteBall.AddComponent<RemotePlayerController>();
+            var controller = remote.GetComponent<RemoteVehicleSync>()
+                          ?? remote.AddComponent<RemoteVehicleSync>();

            controller.Initialize(sessionId, player.name,
                new Color(player.colorR, player.colorG, player.colorB));
@@ -277,7 +292,7 @@ public class NetworkManager : MonoBehaviour
        OnPlayerJoined?.Invoke(sessionId);
    }

-    private void OnPlayerRemove(string sessionId, NetworkPlayer player)
+    private void OnPlayerRemove(string sessionId, Player player)
    {
        Debug.Log($"[Network] Player left: {sessionId}");
        PlayerCount = _room.State.players?.Count ?? 0;
@@ -292,7 +307,7 @@ public class NetworkManager : MonoBehaviour
        OnPlayerLeft?.Invoke(sessionId);
    }

-    private void OnPlayerChange(string sessionId, NetworkPlayer player)
+    private void OnPlayerChange(string sessionId, Player player)
    {
        if (sessionId == LocalSessionId) return;

@@ -312,20 +327,21 @@ public class NetworkManager : MonoBehaviour

    // ─── Position Broadcasting ────────────────────────────────────────────

+    /// <summary>
+    /// Called by <see cref="VehicleLocalSetup"/> after the local vehicle is ready.
+    /// Tells us which Rigidbody to broadcast each tick.
+    /// </summary>
+    public void RegisterLocalVehicle(Transform t, Rigidbody rb)
+    {
+        _localPlayer = t;
+        _localPlayerRb = rb;
+        Debug.Log($"[Network] Local vehicle registered: {t?.name}");
+    }
+
    private void BroadcastPosition()
    {
        if (_room == null || !IsConnected) return;
-
-        if (_localPlayer == null)
-        {
-            var pc = FindFirstObjectByType<PlayerController>();
-            if (pc != null)
-            {
-                _localPlayer = pc.transform;
-                _localPlayerRb = pc.GetComponent<Rigidbody>();
-            }
-            else return;
-        }
+        if (_localPlayer == null || _localPlayerRb == null) return;

        Vector3 pos = _localPlayer.position;
        Vector3 vel = _localPlayerRb != null ? _localPlayerRb.linearVelocity : Vector3.zero;
--- a/game/Assets/Scripts/Network/NetworkSchema.cs
+++ b/game/Assets/Scripts/Network/NetworkSchema.cs
@@ -1,43 +0,0 @@
-using Colyseus.Schema;
-
-// Must match server-side defineTypes field order exactly
-public partial class NetworkPlayer : Schema
-{
-    [Type(0,  "float32")] public float  x = 0;
-    [Type(1,  "float32")] public float  y = 5;
-    [Type(2,  "float32")] public float  z = 0;
-    [Type(3,  "float32")] public float  vx = 0;
-    [Type(4,  "float32")] public float  vy = 0;
-    [Type(5,  "float32")] public float  vz = 0;
-    [Type(6,  "float32")] public float  rx = 0;
-    [Type(7,  "float32")] public float  ry = 0;
-    [Type(8,  "float32")] public float  rz = 0;
-    [Type(9,  "float32")] public float  rw = 1;
-    [Type(10, "float64")] public double t = 0;
-    [Type(11, "string")]  public string name = "";
-    [Type(12, "float32")] public float  colorR = 1;
-    [Type(13, "float32")] public float  colorG = 1;
-    [Type(14, "float32")] public float  colorB = 1;
-    [Type(15, "float32")] public float  avx = 0;
-    [Type(16, "float32")] public float  avy = 0;
-    [Type(17, "float32")] public float  avz = 0;
-    // Game state — order must match server defineTypes exactly
-    [Type(18, "boolean")] public bool   isEliminated = false;
-    [Type(19, "boolean")] public bool   isQualified = false;
-    [Type(20, "boolean")] public bool   isReady = false;
-    [Type(21, "int8")]    public int    checkpointIndex = 0;
-}
-
-public partial class NetworkState : Schema
-{
-    [Type(0, "map", typeof(MapSchema<NetworkPlayer>))]
-    public MapSchema<NetworkPlayer> players;
-
-    [Type(1, "string")]  public string phase = "lobby";
-    [Type(2, "float32")] public float  countdown = 0;
-    [Type(3, "int8")]    public int    roundNumber = 1;
-    [Type(4, "int8")]    public int    totalRounds = 4;
-    [Type(5, "int8")]    public int    playersAlive = 0;
-    [Type(6, "string")]  public string gameMode = "race";
-    [Type(7, "string")]  public string winnerName = "";
-}
--- a/game/Assets/Scripts/Network/NetworkSchema.cs.meta
+++ b/game/Assets/Scripts/Network/NetworkSchema.cs.meta
@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 0ce16348bc0580b49860d9bd80e7bec0
--- a/game/Assets/Scripts/Network/RemotePlayerController.cs
+++ b/game/Assets/Scripts/Network/RemotePlayerController.cs
@@ -24,10 +24,16 @@ public class RemotePlayerController : MonoBehaviour
    [Tooltip("Rotation slerp speed")]
    public float rotationSpeed = 24f;

+    [Header("Spawn")]
+    [Tooltip("Seconds after spawn during which this remote ignores local bump interactions (avoids upward eject if balls overlap at spawn).")]
+    public float spawnBumpGrace = 1.5f;
+
    // Public info
    public string SessionId { get; private set; }
    public string PlayerName { get; private set; }
    public Color PlayerColor { get; private set; }
+    public float SpawnTime { get; private set; }
+    public bool BumpReady => Time.time - SpawnTime > spawnBumpGrace;

    // --- Snapshot buffer ---
    private struct Snapshot
@@ -61,6 +67,7 @@ public class RemotePlayerController : MonoBehaviour
        SessionId = sessionId;
        PlayerName = playerName;
        PlayerColor = color;
+        SpawnTime = Time.time;
        _currentRotation = transform.rotation;
        _bufferCount = 0;
        _initialized = true;
@@ -99,12 +106,17 @@ public class RemotePlayerController : MonoBehaviour

        // Add a trigger collider slightly larger than the physics collider
        // so the local player can detect bumps
-        var existingCollider = GetComponent<SphereCollider>();
-        float baseRadius = existingCollider != null ? existingCollider.radius : 0.5f;
+        _solidCollider = GetComponent<SphereCollider>();
+        float baseRadius = _solidCollider != null ? _solidCollider.radius : 0.5f;
        var trigger = gameObject.AddComponent<SphereCollider>();
        trigger.isTrigger = true;
        trigger.radius = baseRadius * 1.15f; // 15% larger

+        // During the spawn grace window, disable the SOLID collider so the kinematic
+        // remote can't physically eject an overlapping local player at spawn.
+        // (The trigger stays — bump detection is gated by BumpReady in PlayerController.)
+        if (_solidCollider != null) _solidCollider.enabled = false;
+
        // Disable any player input on remote balls
        var playerInput = GetComponent<UnityEngine.InputSystem.PlayerInput>();
        if (playerInput != null)
@@ -114,12 +126,16 @@ public class RemotePlayerController : MonoBehaviour
        if (playerController != null)
            playerController.enabled = false;

-        // Create floating name label
+        // Create floating name label + speed trail
        CreateNameLabel();
+        CreateTrail(color);

        Debug.Log($"[RemotePlayer] Initialized: {playerName} ({sessionId[..6]}) color={color}");
    }

+    private SphereCollider _solidCollider;
+    private bool _solidReenabled;
+
    /// <summary>
    /// Called by NetworkManager when a state update arrives from the server.
    /// Pushes a new snapshot into the interpolation buffer.
@@ -149,7 +165,16 @@ public class RemotePlayerController : MonoBehaviour

    void Update()
    {
-        if (!_initialized || _bufferCount == 0) return;
+        if (!_initialized) return;
+
+        // Re-enable the solid collider once the grace window has elapsed.
+        if (!_solidReenabled && BumpReady && _solidCollider != null)
+        {
+            _solidCollider.enabled = true;
+            _solidReenabled = true;
+        }
+
+        if (_bufferCount == 0) return;

        // Render time = current time minus interpolation delay
        float renderTime = Time.time - interpolationDelay;
@@ -248,15 +273,37 @@ public class RemotePlayerController : MonoBehaviour
            if (cam != null)
            {
                Vector3 lookDir = cam.transform.position - _nameLabelObj.transform.position;
+                float camDist = lookDir.magnitude;
                lookDir.y = 0f;
                if (lookDir.sqrMagnitude > 0.001f)
                    _nameLabelObj.transform.rotation = Quaternion.LookRotation(lookDir);
+
+                // Distance-based scale: keeps the pseudo readable when players are far apart.
+                // Below 8 m → base size; above → grows linearly, capped at 8× to avoid screen takeover.
+                float scaleFactor = Mathf.Clamp(camDist / 8f, 1f, 8f);
+                _nameLabelObj.transform.localScale = Vector3.one * (0.1f * scaleFactor);
            }
        }
    }

    private GameObject _nameLabelObj; // Keep reference for billboard update

+    private void CreateTrail(Color playerColor)
+    {
+        var trail = GetComponent<TrailRenderer>() ?? gameObject.AddComponent<TrailRenderer>();
+        trail.time = 0.4f;
+        trail.startWidth = 0.3f;
+        trail.endWidth = 0.02f;
+        trail.minVertexDistance = 0.1f;
+        trail.autodestruct = false;
+        trail.emitting = true;
+        trail.material = new Material(Shader.Find("Sprites/Default"));
+        // Use the player's chosen color so each remote has a visually distinct trail
+        // (lobby presets avoid orange, so it never clashes with the local player's orange trail).
+        trail.startColor = new Color(playerColor.r, playerColor.g, playerColor.b, 0.7f);
+        trail.endColor   = new Color(playerColor.r, playerColor.g, playerColor.b, 0f);
+    }
+
    private void CreateNameLabel()
    {
        GameObject labelObj = new GameObject("NameLabel");
--- a/game/Assets/Scripts/Network/RemoteVehicleSync.cs
+++ b/game/Assets/Scripts/Network/RemoteVehicleSync.cs
@@ -0,0 +1,283 @@
+using UnityEngine;
+using NWH.VehiclePhysics2;
+
+/// <summary>
+/// Remote vehicle controller. Attached to remote players spawned from the network.
+/// - Disables NWH local simulation (VehicleController + WheelControllers + AudioSources).
+/// - Sets the Rigidbody kinematic so we can drive it with snapshot interpolation
+///   via <see cref="Rigidbody.MovePosition"/> / <see cref="Rigidbody.MoveRotation"/>.
+/// - Local dynamic vehicles bounce naturally off the kinematic remote's colliders.
+/// - Adds a floating name label (distance-scaled) and a colored capsule marker.
+/// </summary>
+public class RemoteVehicleSync : MonoBehaviour
+{
+    [Header("Interpolation")]
+    public float interpolationDelay = 0.083f;
+    public float maxExtrapolation = 0.08f;
+    public float snapDistance = 12f;
+    public float smoothingSpeed = 24f;
+    public float rotationSpeed = 24f;
+
+    [Header("Spawn")]
+    [Tooltip("Seconds after spawn during which colliders are disabled to avoid ejecting overlapping locals at connect.")]
+    public float spawnGrace = 1.5f;
+
+    public string SessionId { get; private set; }
+    public string PlayerName { get; private set; }
+    public Color PlayerColor { get; private set; }
+    public float SpawnTime { get; private set; }
+
+    private struct Snapshot
+    {
+        public double serverTime;
+        public float localTime;
+        public Vector3 position;
+        public Vector3 velocity;
+        public Quaternion rotation;
+        public Vector3 angularVelocity;
+    }
+
+    private const int BUFFER_SIZE = 16;
+    private readonly Snapshot[] _buffer = new Snapshot[BUFFER_SIZE];
+    private int _bufferCount;
+    private int _newestIndex;
+    private bool _initialized;
+
+    private Rigidbody _rb;
+    private VehicleController _vehicle;
+    private Collider[] _allColliders;
+    private bool _collidersReenabled;
+    private Quaternion _currentRotation = Quaternion.identity;
+
+    private GameObject _nameLabelObj;
+    private TextMesh _nameLabel;
+    private GameObject _markerObj;
+
+    public void Initialize(string sessionId, string playerName, Color color)
+    {
+        SessionId = sessionId;
+        PlayerName = playerName;
+        PlayerColor = color;
+        SpawnTime = Time.time;
+        _bufferCount = 0;
+        _currentRotation = transform.rotation;
+
+        // Disable NWH driving simulation: this remote is purely networked, no local AI/input.
+        _vehicle = GetComponent<VehicleController>();
+        if (_vehicle != null) _vehicle.enabled = false;
+
+        // Disable all wheel controllers so they don't apply suspension forces.
+        foreach (var mb in GetComponentsInChildren<MonoBehaviour>(true))
+        {
+            var t = mb.GetType();
+            if (t.FullName == "NWH.WheelController3D.WheelController" || t.FullName.Contains(".WheelController"))
+                mb.enabled = false;
+        }
+
+        // Mute audio sources (engine, skid, etc.) on remotes.
+        foreach (var src in GetComponentsInChildren<AudioSource>(true))
+            src.enabled = false;
+
+        // Make the rigidbody kinematic so we drive it from network snapshots.
+        _rb = _vehicle != null ? _vehicle.vehicleRigidbody : GetComponent<Rigidbody>();
+        if (_rb != null)
+        {
+            _rb.isKinematic = true;
+            _rb.useGravity = false;
+            _rb.interpolation = RigidbodyInterpolation.Interpolate;
+            _rb.collisionDetectionMode = CollisionDetectionMode.ContinuousSpeculative;
+        }
+
+        // Cache colliders and disable them during the grace window to avoid spawn-time ejection.
+        _allColliders = GetComponentsInChildren<Collider>(true);
+        foreach (var c in _allColliders)
+            if (c != null && !c.isTrigger) c.enabled = false;
+
+        BuildNameLabel(playerName, color);
+        BuildColorMarker(color);
+
+        _initialized = true;
+        Debug.Log($"[RemoteVehicle] Initialized: {playerName} ({sessionId[..6]}) color={color}");
+    }
+
+    public void SetTargetState(Vector3 position, Vector3 velocity, Quaternion rotation, double serverTime, Vector3 angularVelocity = default)
+    {
+        _newestIndex = (_newestIndex + 1) % BUFFER_SIZE;
+        _buffer[_newestIndex] = new Snapshot
+        {
+            serverTime = serverTime,
+            localTime = Time.time,
+            position = position,
+            velocity = velocity,
+            rotation = rotation,
+            angularVelocity = angularVelocity,
+        };
+        if (_bufferCount < BUFFER_SIZE) _bufferCount++;
+    }
+
+    public void SetVisible(bool visible)
+    {
+        foreach (var r in GetComponentsInChildren<Renderer>(true))
+            if (r != null) r.enabled = visible;
+        if (_nameLabelObj != null) _nameLabelObj.SetActive(visible);
+        if (_markerObj != null) _markerObj.SetActive(visible);
+    }
+
+    void Update()
+    {
+        if (!_initialized) return;
+
+        // Re-enable colliders once grace window has elapsed.
+        if (!_collidersReenabled && Time.time - SpawnTime > spawnGrace)
+        {
+            if (_allColliders != null)
+                foreach (var c in _allColliders)
+                    if (c != null && !c.isTrigger) c.enabled = true;
+            _collidersReenabled = true;
+        }
+
+        if (_bufferCount == 0) return;
+
+        float renderTime = Time.time - interpolationDelay;
+        int oldestIdx = (_newestIndex - _bufferCount + 1 + BUFFER_SIZE) % BUFFER_SIZE;
+
+        Snapshot older = default, newer = default;
+        bool found = false;
+        for (int i = 0; i < _bufferCount - 1; i++)
+        {
+            int a = (oldestIdx + i) % BUFFER_SIZE;
+            int b = (oldestIdx + i + 1) % BUFFER_SIZE;
+            if (_buffer[a].localTime <= renderTime && _buffer[b].localTime >= renderTime)
+            {
+                older = _buffer[a];
+                newer = _buffer[b];
+                found = true;
+                break;
+            }
+        }
+
+        Vector3 targetPos;
+        Quaternion targetRot;
+        if (found)
+        {
+            float span = newer.localTime - older.localTime;
+            float t = span > 0.001f ? (renderTime - older.localTime) / span : 1f;
+            t = Mathf.Clamp01(t);
+            targetPos = Vector3.Lerp(older.position, newer.position, t);
+            targetRot = Quaternion.Slerp(older.rotation, newer.rotation, t);
+        }
+        else
+        {
+            var newest = _buffer[_newestIndex];
+            float elapsed = renderTime - newest.localTime;
+            if (elapsed < 0)
+            {
+                targetPos = _buffer[oldestIdx].position;
+                targetRot = _buffer[oldestIdx].rotation;
+            }
+            else
+            {
+                float extTime = Mathf.Min(elapsed, maxExtrapolation);
+                float damp = 1f - Mathf.Clamp01(elapsed / (maxExtrapolation * 2f));
+                targetPos = newest.position + newest.velocity * extTime * damp;
+                targetRot = newest.rotation;
+            }
+        }
+
+        float dist = Vector3.Distance(transform.position, targetPos);
+        Vector3 newPos;
+        if (dist > snapDistance)
+        {
+            newPos = targetPos;
+            _currentRotation = targetRot;
+        }
+        else
+        {
+            float lerpT = 1f - Mathf.Exp(-smoothingSpeed * Time.deltaTime);
+            newPos = Vector3.Lerp(transform.position, targetPos, lerpT);
+        }
+        float rotLerpT = 1f - Mathf.Exp(-rotationSpeed * Time.deltaTime);
+        _currentRotation = Quaternion.Slerp(_currentRotation, targetRot, rotLerpT);
+
+        if (_rb != null)
+        {
+            _rb.MovePosition(newPos);
+            _rb.MoveRotation(_currentRotation);
+        }
+        else
+        {
+            transform.position = newPos;
+            transform.rotation = _currentRotation;
+        }
+
+        if (_nameLabelObj != null)
+        {
+            _nameLabelObj.transform.position = transform.position + Vector3.up * 2.8f;
+            var cam = Camera.main;
+            if (cam != null)
+            {
+                Vector3 lookDir = cam.transform.position - _nameLabelObj.transform.position;
+                float camDist = lookDir.magnitude;
+                lookDir.y = 0f;
+                if (lookDir.sqrMagnitude > 0.001f)
+                    _nameLabelObj.transform.rotation = Quaternion.LookRotation(lookDir);
+                float scale = Mathf.Clamp(camDist / 8f, 1f, 8f);
+                _nameLabelObj.transform.localScale = Vector3.one * (0.1f * scale);
+            }
+        }
+    }
+
+    private void BuildNameLabel(string playerName, Color color)
+    {
+        _nameLabelObj = new GameObject("NameLabel");
+        _nameLabelObj.transform.position = transform.position + Vector3.up * 2.8f;
+        _nameLabelObj.transform.localScale = Vector3.one * 0.1f;
+
+        _nameLabel = _nameLabelObj.AddComponent<TextMesh>();
+        _nameLabel.text = playerName;
+        _nameLabel.fontSize = 144;
+        _nameLabel.characterSize = 0.15f;
+        _nameLabel.anchor = TextAnchor.MiddleCenter;
+        _nameLabel.alignment = TextAlignment.Center;
+        _nameLabel.color = color;
+        if (PlayerController.LabelFont != null) _nameLabel.font = PlayerController.LabelFont;
+
+        var mr = _nameLabel.GetComponent<MeshRenderer>();
+        if (PlayerController.LabelFont != null && PlayerController.LabelFont.material != null)
+            mr.material = PlayerController.LabelFont.material;
+        else
+        {
+            var s = Shader.Find("GUI/Text Shader") ?? Shader.Find("Unlit/Texture");
+            if (s != null) mr.material = new Material(s);
+        }
+    }
+
+    private void BuildColorMarker(Color color)
+    {
+        _markerObj = GameObject.CreatePrimitive(PrimitiveType.Capsule);
+        _markerObj.name = "RemoteMarker";
+        DestroyImmediate(_markerObj.GetComponent<Collider>());
+        _markerObj.transform.SetParent(transform, false);
+        _markerObj.transform.localPosition = new Vector3(0f, 2.4f, 0f);
+        _markerObj.transform.localScale = new Vector3(0.25f, 0.4f, 0.25f);
+
+        var r = _markerObj.GetComponent<Renderer>();
+        if (r != null)
+        {
+            var shader = Shader.Find("Universal Render Pipeline/Lit") ?? Shader.Find("Standard");
+            var mat = new Material(shader);
+            if (mat.HasProperty("_BaseColor")) mat.SetColor("_BaseColor", color);
+            else mat.color = color;
+            if (mat.HasProperty("_EmissionColor")) mat.SetColor("_EmissionColor", color * 0.6f);
+            mat.EnableKeyword("_EMISSION");
+            r.material = mat;
+        }
+    }
+
+    void OnDestroy()
+    {
+        if (_nameLabelObj != null) Destroy(_nameLabelObj);
+        if (_markerObj != null) Destroy(_markerObj);
+        Debug.Log($"[RemoteVehicle] Destroyed: {PlayerName}");
+    }
+}
--- a/game/Assets/Scripts/Network/VehicleLocalSetup.cs
+++ b/game/Assets/Scripts/Network/VehicleLocalSetup.cs
@@ -0,0 +1,109 @@
+using UnityEngine;
+using NWH.VehiclePhysics2;
+
+/// <summary>
+/// Equivalent of <c>PlayerController.SetupLocalPlayer</c> for the NWH vehicle local player.
+/// Attaches a floating name label, a colored marker above the car so other players can
+/// spot us at distance, and registers the vehicle's Rigidbody with the NetworkManager
+/// so it is broadcast over the wire.
+/// </summary>
+[RequireComponent(typeof(VehicleController))]
+public class VehicleLocalSetup : MonoBehaviour
+{
+    private GameObject _nameLabelObj;
+    private TextMesh _nameLabel;
+    private GameObject _markerObj;
+    private VehicleController _vehicle;
+
+    void Awake()
+    {
+        _vehicle = GetComponent<VehicleController>();
+    }
+
+    public void SetupLocal(string playerName, Color playerColor)
+    {
+        if (_vehicle == null) _vehicle = GetComponent<VehicleController>();
+        var rb = _vehicle.vehicleRigidbody != null ? _vehicle.vehicleRigidbody : GetComponent<Rigidbody>();
+
+        // Register with NetworkManager so it broadcasts position from THIS Rigidbody.
+        if (NetworkManager.Instance != null)
+            NetworkManager.Instance.RegisterLocalVehicle(transform, rb);
+
+        BuildNameLabel(playerName, playerColor);
+        BuildColorMarker(playerColor);
+
+        Debug.Log($"[VehicleLocal] Setup complete: {playerName} color={playerColor}");
+    }
+
+    private void BuildNameLabel(string playerName, Color color)
+    {
+        if (_nameLabelObj != null) Destroy(_nameLabelObj);
+        _nameLabelObj = new GameObject("LocalNameLabel");
+        _nameLabelObj.transform.SetParent(transform.parent, false);
+        _nameLabelObj.transform.localScale = Vector3.one * 0.1f;
+
+        _nameLabel = _nameLabelObj.AddComponent<TextMesh>();
+        _nameLabel.text = playerName;
+        _nameLabel.fontSize = 144;
+        _nameLabel.characterSize = 0.15f;
+        _nameLabel.anchor = TextAnchor.MiddleCenter;
+        _nameLabel.alignment = TextAlignment.Center;
+        _nameLabel.color = color;
+        if (PlayerController.LabelFont != null) _nameLabel.font = PlayerController.LabelFont;
+
+        var renderer = _nameLabel.GetComponent<MeshRenderer>();
+        if (PlayerController.LabelFont != null && PlayerController.LabelFont.material != null)
+            renderer.material = PlayerController.LabelFont.material;
+        else
+        {
+            var textShader = Shader.Find("GUI/Text Shader") ?? Shader.Find("Unlit/Texture");
+            if (textShader != null) renderer.material = new Material(textShader);
+        }
+    }
+
+    private void BuildColorMarker(Color color)
+    {
+        // Cone-ish marker above the car so other players can identify us at distance.
+        if (_markerObj != null) Destroy(_markerObj);
+        _markerObj = GameObject.CreatePrimitive(PrimitiveType.Capsule);
+        _markerObj.name = "LocalMarker";
+        DestroyImmediate(_markerObj.GetComponent<Collider>());
+        _markerObj.transform.SetParent(transform, false);
+        _markerObj.transform.localPosition = new Vector3(0f, 2.4f, 0f);
+        _markerObj.transform.localScale = new Vector3(0.25f, 0.4f, 0.25f);
+
+        var r = _markerObj.GetComponent<Renderer>();
+        if (r != null)
+        {
+            var shader = Shader.Find("Universal Render Pipeline/Lit") ?? Shader.Find("Standard");
+            var mat = new Material(shader);
+            if (mat.HasProperty("_BaseColor")) mat.SetColor("_BaseColor", color);
+            else mat.color = color;
+            if (mat.HasProperty("_EmissionColor")) mat.SetColor("_EmissionColor", color * 0.6f);
+            mat.EnableKeyword("_EMISSION");
+            r.material = mat;
+        }
+    }
+
+    void LateUpdate()
+    {
+        if (_nameLabelObj != null)
+        {
+            _nameLabelObj.transform.position = transform.position + Vector3.up * 2.8f;
+            var cam = Camera.main;
+            if (cam != null)
+            {
+                Vector3 lookDir = cam.transform.position - _nameLabelObj.transform.position;
+                lookDir.y = 0f;
+                if (lookDir.sqrMagnitude > 0.001f)
+                    _nameLabelObj.transform.rotation = Quaternion.LookRotation(lookDir);
+            }
+        }
+    }
+
+    void OnDestroy()
+    {
+        if (_nameLabelObj != null) Destroy(_nameLabelObj);
+        if (_markerObj != null) Destroy(_markerObj);
+    }
+}
--- a/game/Assets/Scripts/Race/CheckpointSystem.cs.meta
+++ b/game/Assets/Scripts/Race/CheckpointSystem.cs.meta
@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 5bf5e078a2ee9ed4fa95eacab5753f3a
--- a/game/Assets/Scripts/Race/CheckpointTrigger.cs.meta
+++ b/game/Assets/Scripts/Race/CheckpointTrigger.cs.meta
@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 6d1f3d6aaca8e97498f40d827f7c5216
--- a/game/Assets/Scripts/Stats/StatsTracker.cs
+++ b/game/Assets/Scripts/Stats/StatsTracker.cs
@@ -4,56 +4,49 @@ using UnityEngine;
 using UnityEngine.Networking;

 /// <summary>
-/// Tracks per-session and per-round player statistics and uploads them to the game server.
-/// All HTTP calls use UnityWebRequest coroutines (WebGL-safe, no async/await).
+/// Tracks player statistics and uploads them to the game server every 30s + on disconnect.
+/// No dependency on round events — works even if Colyseus callbacks are broken.
 /// </summary>
 public class StatsTracker : MonoBehaviour
 {
    public static StatsTracker Instance { get; private set; }

-    private const string SERVER_URL = "https://game.rolld.kerboul.me";
+    private const string SERVER_URL    = "https://game.rolld.kerboul.me";
+    private const float  SEND_INTERVAL    = 30f;
+    private const float  MIN_SEND_INTERVAL = 6f; // juste au-dessus du rate-limit serveur (5s)

-    // Cumulative session stats (accumulate across rounds)
+    // Cumulative stats
    private float _totalDistance;
    private int   _totalJumps;
    private float _maxSpeed;
-    private int   _racesPlayed;
-    private int   _qualifications;
-    private int   _eliminations;
    private int   _bumpsGiven;
-    private float _totalPlaytime;

-    // Per-round deltas (reset after each send)
-    private float _roundDistance;
-    private float _roundMaxSpeed;
+    // Playtime
    private float _sessionStart;
+    private float _playtimeSentSoFar; // how much playtime we already sent

+    // Tracking
    private Vector3 _lastPos;
-    private bool    _trackingActive;
+    private bool    _tracking;
    private string  _cachedName = "";
-    private PlayerController _pc;
+    private float   _lastSentTime = -999f;
+
    private Rigidbody _rb;

    void Awake()
    {
        if (Instance != null && Instance != this) { Destroy(gameObject); return; }
        Instance = this;
-        _sessionStart = Time.time;
    }

    void Start()
    {
-        _pc = GetComponent<PlayerController>();
        _rb = GetComponent<Rigidbody>();

        var nm = NetworkManager.Instance;
        if (nm != null)
        {
-            nm.OnRoundStart  += OnRoundStart;
-            nm.OnRoundEnd    += OnRoundEnd;
-            nm.OnQualified   += OnQualified;
-            nm.OnEliminated  += OnEliminated;
-            nm.OnConnected   += OnConnected;
+            nm.OnConnected    += OnConnected;
            nm.OnDisconnected += OnDisconnected;
        }
    }
@@ -63,123 +56,90 @@ public class StatsTracker : MonoBehaviour
        var nm = NetworkManager.Instance;
        if (nm != null)
        {
-            nm.OnRoundStart  -= OnRoundStart;
-            nm.OnRoundEnd    -= OnRoundEnd;
-            nm.OnQualified   -= OnQualified;
-            nm.OnEliminated  -= OnEliminated;
-            nm.OnConnected   -= OnConnected;
+            nm.OnConnected    -= OnConnected;
            nm.OnDisconnected -= OnDisconnected;
        }
    }

    void FixedUpdate()
    {
-        if (!_trackingActive || _rb == null || _pc == null || !_pc.enabled) return;
+        if (!_tracking || _rb == null) return;

-        Vector3 pos = transform.position;
-        float delta = Vector3.Distance(pos, _lastPos);
-        if (delta < 20f) // sanity cap against teleports
-        {
-            _roundDistance  += delta;
-            _totalDistance  += delta;
-        }
+        Vector3 pos   = transform.position;
+        float   delta = Vector3.Distance(pos, _lastPos);
+        if (delta < 20f) // filtre téléportations
+            _totalDistance += delta;
        _lastPos = pos;

        float speed = _rb.linearVelocity.magnitude;
-        if (speed > _roundMaxSpeed) _roundMaxSpeed = speed;
-        if (speed > _maxSpeed)      _maxSpeed      = speed;
+        if (speed > _maxSpeed) _maxSpeed = speed;
    }

-    // ─── Public hooks ────────────────────────────────────────────────────
+    // ─── Public hooks ─────────────────────────────────────────────────────

-    public void RegisterJump()
-    {
-        _totalJumps++;
-    }
+    public void RegisterJump() => _totalJumps++;
+    public void RegisterBump() => _bumpsGiven++;

-    public void RegisterBump()
-    {
-        _bumpsGiven++;
-    }
-
-    // ─── Event handlers ──────────────────────────────────────────────────
+    // ─── Connection events ────────────────────────────────────────────────

    private void OnConnected()
    {
-        _cachedName = NetworkManager.Instance?.LocalPlayerName ?? "";
-        _lastPos = transform.position;
-        _trackingActive = true;
+        _cachedName   = NetworkManager.Instance?.LocalPlayerName ?? "";
+        _lastPos      = transform.position;
+        _sessionStart = Time.time;
+        _tracking     = true;
+        StartCoroutine(PeriodicSend());
    }

    private void OnDisconnected()
    {
-        _trackingActive = false;
-        _totalPlaytime += Time.time - _sessionStart;
-        SendStats(); // best-effort on disconnect
+        _tracking = false;
+        StopAllCoroutines();
+        SendStats(); // envoi final best-effort
    }

-    private void OnRoundStart(int round, string mode, int totalRounds)
+    // ─── Periodic send ────────────────────────────────────────────────────
+
+    private IEnumerator PeriodicSend()
    {
-        _racesPlayed++;
-        _roundDistance = 0f;
-        _roundMaxSpeed = 0f;
-        _lastPos = transform.position;
-        _trackingActive = true;
+        while (_tracking)
+        {
+            yield return new WaitForSeconds(SEND_INTERVAL);
+            if (_tracking) SendStats();
+        }
    }

-    private void OnRoundEnd(int round)
-    {
-        _trackingActive = false;
-        SendStats();
-        _roundDistance = 0f;
-        _roundMaxSpeed = 0f;
-    }
-
-    private void OnQualified(string sessionId)
-    {
-        if (sessionId == NetworkManager.Instance?.LocalSessionId)
-            _qualifications++;
-    }
-
-    private void OnEliminated(string sessionId, string reason)
-    {
-        if (sessionId == NetworkManager.Instance?.LocalSessionId)
-            _eliminations++;
-    }
-
-    // ─── HTTP send ───────────────────────────────────────────────────────
+    // ─── HTTP send ────────────────────────────────────────────────────────

    private void SendStats()
    {
-        // Prefer live name, fall back to cached (useful on disconnect where name is cleared)
+        if (Time.time - _lastSentTime < MIN_SEND_INTERVAL) return;
        var nm = NetworkManager.Instance;
        string name = (nm != null && !string.IsNullOrEmpty(nm.LocalPlayerName))
            ? nm.LocalPlayerName
            : _cachedName;
        if (string.IsNullOrEmpty(name)) return;
+        _lastSentTime = Time.time;
        StartCoroutine(DoSendStats(name));
    }

    private IEnumerator DoSendStats(string playerName)
    {
-        _totalPlaytime += Time.time - _sessionStart;
-        _sessionStart = Time.time;
+        float now          = Time.time;
+        float sessionSecs  = now - _sessionStart;
+        float playtimeToSend = sessionSecs - _playtimeSentSoFar;
+        _playtimeSentSoFar = sessionSecs;

        var payload = new StatsPayload
        {
-            name = playerName,
+            name  = playerName,
            stats = new StatsData
            {
-                totalDistance    = _totalDistance,
-                totalJumps       = _totalJumps,
-                maxSpeed         = _maxSpeed,
-
-                racesPlayed      = _racesPlayed,
-                qualifications   = _qualifications,
-                eliminations     = _eliminations,
-
-                bumpsGiven       = _bumpsGiven,
-                totalPlaytime    = _totalPlaytime,
+                totalDistance = _totalDistance,
+                totalJumps    = _totalJumps,
+                maxSpeed      = _maxSpeed,
+                bumpsGiven    = _bumpsGiven,
+                totalPlaytime = playtimeToSend,
            }
        };

@@ -196,7 +156,7 @@ public class StatsTracker : MonoBehaviour
        if (req.result != UnityWebRequest.Result.Success)
            Debug.LogWarning($"[Stats] Upload failed: {req.error}");
        else
-            Debug.Log($"[Stats] Uploaded for {playerName}");
+            Debug.Log($"[Stats] Sent for {playerName} — dist:{_totalDistance:F0}m spd:{_maxSpeed:F1}m/s jumps:{_totalJumps}");
    }

    // ─── DTOs ─────────────────────────────────────────────────────────────
@@ -210,9 +170,6 @@ public class StatsTracker : MonoBehaviour
        public float totalDistance;
        public int   totalJumps;
        public float maxSpeed;
-        public int   racesPlayed;
-        public int   qualifications;
-        public int   eliminations;
        public int   bumpsGiven;
        public float totalPlaytime;
    }
--- a/game/Assets/Scripts/UI/ChatUI.cs
+++ b/game/Assets/Scripts/UI/ChatUI.cs
@@ -76,6 +76,8 @@ public class ChatUI : MonoBehaviour
            _pollTimer = POLL_INTERVAL; // poll immediately
            Cursor.lockState = CursorLockMode.None;
            Cursor.visible = true;
+            // Movement keys are handled by NWH InputSystemVehicleInputProvider via Input System;
+            // no manual reset needed when chat opens (NWH polls Input System each frame).
        }
        else
        {
--- a/game/Assets/Scripts/UI/EliminationOverlay.cs.meta
+++ b/game/Assets/Scripts/UI/EliminationOverlay.cs.meta
@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 51e21afb9dba1904bb425ac1fae825cb
--- a/game/Assets/Scripts/UI/GameHUD.cs
+++ b/game/Assets/Scripts/UI/GameHUD.cs
@@ -101,108 +101,7 @@ public class GameHUD : MonoBehaviour

    void OnGUI()
    {
-        if (_phase == "lobby" && !_localRaceActive) return;
-
-        ImGuiSkin.EnsureReady();
-        var nm = NetworkManager.Instance;
-
-        // ── Countdown (center, large) ─────────────────────────────────────
-        if (_phase == "countdown" && _countdown > 0f)
-        {
-            float scale = 1f + _countdownPulse * 0.4f;
-            float fontSize = 96f * scale;
-            var countStyle = new GUIStyle(GUI.skin.label)
-            {
-                alignment = TextAnchor.MiddleCenter,
-                fontSize = Mathf.RoundToInt(fontSize),
-                fontStyle = FontStyle.Bold,
-            };
-            countStyle.normal.textColor = new Color(1f, 0.85f, 0.1f, 1f);
-            GUI.Label(new Rect(0, Screen.height * 0.3f, Screen.width, 120f),
-                Mathf.CeilToInt(_countdown).ToString(), countStyle);
-
-            // "Préparez-vous !" label below
-            var subStyle = new GUIStyle(GUI.skin.label)
-            {
-                alignment = TextAnchor.MiddleCenter,
-                fontSize = 22,
-                fontStyle = FontStyle.Bold,
-            };
-            subStyle.normal.textColor = new Color(1f, 1f, 1f, 0.8f);
-            string modeLabel = _gameMode switch {
-                "race"     => "COURSE",
-                "survival" => "SURVIVAL",
-                "teams"    => "ÉQUIPES",
-                _ => _gameMode.ToUpper()
-            };
-            GUI.Label(new Rect(0, Screen.height * 0.3f + 110f, Screen.width, 36f),
-                $"— {modeLabel} —", subStyle);
-            return;
-        }
-
-        // ── Top-left: Round & Mode ─────────────────────────────────────────
-        float panelX = 12f;
-        float panelY = 12f;
-        float panelW = 220f;
-        float panelH = 70f;
-
-        GUI.color = new Color(0.08f, 0.08f, 0.12f, 0.85f);
-        GUI.DrawTexture(new Rect(panelX, panelY, panelW, panelH), _bgTex);
-        GUI.color = Color.white;
-
-        var roundStyle = new GUIStyle(GUI.skin.label)
-        {
-            alignment = TextAnchor.MiddleLeft,
-            fontSize = 14,
-            fontStyle = FontStyle.Bold,
-        };
-        roundStyle.normal.textColor = new Color(1f, 0.85f, 0.1f);
-        GUI.Label(new Rect(panelX + 8f, panelY + 4f, panelW - 16f, 28f),
-            $"ROUND {_roundNumber} / {_totalRounds}", roundStyle);
-
-        var modeStyle = new GUIStyle(GUI.skin.label) { alignment = TextAnchor.MiddleLeft, fontSize = 12 };
-        modeStyle.normal.textColor = new Color(0.7f, 0.7f, 0.85f);
-        string modeFull = _gameMode switch {
-            "race" => "COURSE", "survival" => "SURVIVAL", "teams" => "ÉQUIPES", _ => _gameMode.ToUpper()
-        };
-        GUI.Label(new Rect(panelX + 8f, panelY + 32f, panelW - 16f, 24f), modeFull, modeStyle);
-
-        // ── Top-right: Players alive ──────────────────────────────────────
-        float prX = Screen.width - 180f;
-        GUI.color = new Color(0.08f, 0.08f, 0.12f, 0.85f);
-        GUI.DrawTexture(new Rect(prX, panelY, 168f, panelH), _bgTex);
-        GUI.color = Color.white;
-
-        var aliveStyle = new GUIStyle(GUI.skin.label)
-        {
-            alignment = TextAnchor.MiddleCenter,
-            fontSize = 28,
-            fontStyle = FontStyle.Bold,
-        };
-        aliveStyle.normal.textColor = new Color(0.3f, 1f, 0.5f);
-        GUI.Label(new Rect(prX, panelY + 2f, 168f, 40f), $"{_cachedPlayersAlive}", aliveStyle);
-
-        var aliveLabel = new GUIStyle(GUI.skin.label) { alignment = TextAnchor.MiddleCenter, fontSize = 11 };
-        aliveLabel.normal.textColor = new Color(0.6f, 0.6f, 0.7f);
-        GUI.Label(new Rect(prX, panelY + 40f, 168f, 22f), "joueurs en jeu", aliveLabel);
-
-        // ── Round timer (top center) ──────────────────────────────────────
-        float displayTimer = _timerRunning ? _roundTimer : (_localRaceActive ? _localRaceTimer : -1f);
-        if (displayTimer >= 0f)
-        {
-            int mins = Mathf.FloorToInt(displayTimer / 60f);
-            int secs = Mathf.FloorToInt(displayTimer % 60f);
-            var timerStyle = new GUIStyle(GUI.skin.label)
-            {
-                alignment = TextAnchor.MiddleCenter,
-                fontSize = 18,
-                fontStyle = FontStyle.Bold,
-            };
-            timerStyle.normal.textColor = new Color(0.85f, 0.85f, 0.9f, 0.9f);
-            GUI.Label(new Rect(Screen.width * 0.5f - 60f, panelY, 120f, 40f),
-                $"{mins:00}:{secs:00}", timerStyle);
-        }
-
+        // Race UI disabled — free-roam mode has no rounds/countdown/timer.
    }

    // Static accessors for cross-script use
--- a/Materials/LiberationSans
+++ b/Materials/LiberationSans
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+++ b/game/Assets/TutorialInfo.meta
@@ -1,8 +0,0 @@
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+++ b/game/Assets/TutorialInfo/Icons/URP.png
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+++ b/game/Assets/TutorialInfo/Icons/URP.png.meta
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--- !u!114 &8
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--- !u!114 &14
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--- !u!114 &15
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--- !u!114 &16
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--- a/game/Assets/TutorialInfo/Layout.wlt.meta
+++ b/game/Assets/TutorialInfo/Layout.wlt.meta
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: eabc9546105bf4accac1fd62a63e88e6
-timeCreated: 1487337779
-licenseType: Store
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/TutorialInfo/Scripts.meta
+++ b/game/Assets/TutorialInfo/Scripts.meta
@@ -1,9 +0,0 @@
-fileFormatVersion: 2
-guid: 5a9bcd70e6a4b4b05badaa72e827d8e0
-folderAsset: yes
-timeCreated: 1475835190
-licenseType: Store
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/TutorialInfo/Scripts/Editor.meta
+++ b/game/Assets/TutorialInfo/Scripts/Editor.meta
@@ -1,9 +0,0 @@
-fileFormatVersion: 2
-guid: 3ad9b87dffba344c89909c6d1b1c17e1
-folderAsset: yes
-timeCreated: 1475593892
-licenseType: Store
-DefaultImporter:
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-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs
+++ b/game/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs
@@ -1,242 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-using UnityEditor;
-using System;
-using System.IO;
-using System.Reflection;
-
-[CustomEditor(typeof(Readme))]
-[InitializeOnLoad]
-public class ReadmeEditor : Editor
-{
-    static string s_ShowedReadmeSessionStateName = "ReadmeEditor.showedReadme";
-    
-    static string s_ReadmeSourceDirectory = "Assets/TutorialInfo";
-
-    const float k_Space = 16f;
-
-    static ReadmeEditor()
-    {
-        EditorApplication.delayCall += SelectReadmeAutomatically;
-    }
-
-    static void RemoveTutorial()
-    {
-        if (EditorUtility.DisplayDialog("Remove Readme Assets",
-            
-            $"All contents under {s_ReadmeSourceDirectory} will be removed, are you sure you want to proceed?",
-            "Proceed",
-            "Cancel"))
-        {
-            if (Directory.Exists(s_ReadmeSourceDirectory))
-            {
-                FileUtil.DeleteFileOrDirectory(s_ReadmeSourceDirectory);
-                FileUtil.DeleteFileOrDirectory(s_ReadmeSourceDirectory + ".meta");
-            }
-            else
-            {
-                Debug.Log($"Could not find the Readme folder at {s_ReadmeSourceDirectory}");
-            }
-
-            var readmeAsset = SelectReadme();
-            if (readmeAsset != null)
-            {
-                var path = AssetDatabase.GetAssetPath(readmeAsset);
-                FileUtil.DeleteFileOrDirectory(path + ".meta");
-                FileUtil.DeleteFileOrDirectory(path);
-            }
-
-            AssetDatabase.Refresh();
-        }
-    }
-
-    static void SelectReadmeAutomatically()
-    {
-        if (!SessionState.GetBool(s_ShowedReadmeSessionStateName, false))
-        {
-            var readme = SelectReadme();
-            SessionState.SetBool(s_ShowedReadmeSessionStateName, true);
-
-            if (readme && !readme.loadedLayout)
-            {
-                LoadLayout();
-                readme.loadedLayout = true;
-            }
-        }
-    }
-
-    static void LoadLayout()
-    {
-        var assembly = typeof(EditorApplication).Assembly;
-        var windowLayoutType = assembly.GetType("UnityEditor.WindowLayout", true);
-        var method = windowLayoutType.GetMethod("LoadWindowLayout", BindingFlags.Public | BindingFlags.Static);
-        method.Invoke(null, new object[] { Path.Combine(Application.dataPath, "TutorialInfo/Layout.wlt"), false });
-    }
-
-    static Readme SelectReadme()
-    {
-        var ids = AssetDatabase.FindAssets("Readme t:Readme");
-        if (ids.Length == 1)
-        {
-            var readmeObject = AssetDatabase.LoadMainAssetAtPath(AssetDatabase.GUIDToAssetPath(ids[0]));
-
-            Selection.objects = new UnityEngine.Object[] { readmeObject };
-
-            return (Readme)readmeObject;
-        }
-        else
-        {
-            Debug.Log("Couldn't find a readme");
-            return null;
-        }
-    }
-
-    protected override void OnHeaderGUI()
-    {
-        var readme = (Readme)target;
-        Init();
-
-        var iconWidth = Mathf.Min(EditorGUIUtility.currentViewWidth / 3f - 20f, 128f);
-
-        GUILayout.BeginHorizontal("In BigTitle");
-        {
-            if (readme.icon != null)
-            {
-                GUILayout.Space(k_Space);
-                GUILayout.Label(readme.icon, GUILayout.Width(iconWidth), GUILayout.Height(iconWidth));
-            }
-            GUILayout.Space(k_Space);
-            GUILayout.BeginVertical();
-            {
-
-                GUILayout.FlexibleSpace();
-                GUILayout.Label(readme.title, TitleStyle);
-                GUILayout.FlexibleSpace();
-            }
-            GUILayout.EndVertical();
-            GUILayout.FlexibleSpace();
-        }
-        GUILayout.EndHorizontal();
-    }
-
-    public override void OnInspectorGUI()
-    {
-        var readme = (Readme)target;
-        Init();
-
-        foreach (var section in readme.sections)
-        {
-            if (!string.IsNullOrEmpty(section.heading))
-            {
-                GUILayout.Label(section.heading, HeadingStyle);
-            }
-
-            if (!string.IsNullOrEmpty(section.text))
-            {
-                GUILayout.Label(section.text, BodyStyle);
-            }
-
-            if (!string.IsNullOrEmpty(section.linkText))
-            {
-                if (LinkLabel(new GUIContent(section.linkText)))
-                {
-                    Application.OpenURL(section.url);
-                }
-            }
-
-            GUILayout.Space(k_Space);
-        }
-
-        if (GUILayout.Button("Remove Readme Assets", ButtonStyle))
-        {
-            RemoveTutorial();
-        }
-    }
-
-    bool m_Initialized;
-
-    GUIStyle LinkStyle
-    {
-        get { return m_LinkStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_LinkStyle;
-
-    GUIStyle TitleStyle
-    {
-        get { return m_TitleStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_TitleStyle;
-
-    GUIStyle HeadingStyle
-    {
-        get { return m_HeadingStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_HeadingStyle;
-
-    GUIStyle BodyStyle
-    {
-        get { return m_BodyStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_BodyStyle;
-
-    GUIStyle ButtonStyle
-    {
-        get { return m_ButtonStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_ButtonStyle;
-
-    void Init()
-    {
-        if (m_Initialized)
-            return;
-        m_BodyStyle = new GUIStyle(EditorStyles.label);
-        m_BodyStyle.wordWrap = true;
-        m_BodyStyle.fontSize = 14;
-        m_BodyStyle.richText = true;
-
-        m_TitleStyle = new GUIStyle(m_BodyStyle);
-        m_TitleStyle.fontSize = 26;
-
-        m_HeadingStyle = new GUIStyle(m_BodyStyle);
-        m_HeadingStyle.fontStyle = FontStyle.Bold;
-        m_HeadingStyle.fontSize = 18;
-
-        m_LinkStyle = new GUIStyle(m_BodyStyle);
-        m_LinkStyle.wordWrap = false;
-
-        // Match selection color which works nicely for both light and dark skins
-        m_LinkStyle.normal.textColor = new Color(0x00 / 255f, 0x78 / 255f, 0xDA / 255f, 1f);
-        m_LinkStyle.stretchWidth = false;
-
-        m_ButtonStyle = new GUIStyle(EditorStyles.miniButton);
-        m_ButtonStyle.fontStyle = FontStyle.Bold;
-
-        m_Initialized = true;
-    }
-
-    bool LinkLabel(GUIContent label, params GUILayoutOption[] options)
-    {
-        var position = GUILayoutUtility.GetRect(label, LinkStyle, options);
-
-        Handles.BeginGUI();
-        Handles.color = LinkStyle.normal.textColor;
-        Handles.DrawLine(new Vector3(position.xMin, position.yMax), new Vector3(position.xMax, position.yMax));
-        Handles.color = Color.white;
-        Handles.EndGUI();
-
-        EditorGUIUtility.AddCursorRect(position, MouseCursor.Link);
-
-        return GUI.Button(position, label, LinkStyle);
-    }
-}
--- a/game/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs.meta
+++ b/game/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs.meta
@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 476cc7d7cd9874016adc216baab94a0a
-timeCreated: 1484146680
-licenseType: Store
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/game/Assets/TutorialInfo/Scripts/Readme.cs
+++ b/game/Assets/TutorialInfo/Scripts/Readme.cs
@@ -1,16 +0,0 @@
-using System;
-using UnityEngine;
-
-public class Readme : ScriptableObject
-{
-    public Texture2D icon;
-    public string title;
-    public Section[] sections;
-    public bool loadedLayout;
-
-    [Serializable]
-    public class Section
-    {
-        public string heading, text, linkText, url;
-    }
-}
--- a/game/Assets/TutorialInfo/Scripts/Readme.cs.meta
+++ b/game/Assets/TutorialInfo/Scripts/Readme.cs.meta
@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: fcf7219bab7fe46a1ad266029b2fee19
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences:
-  - icon: {instanceID: 0}
-  executionOrder: 0
-  icon: {fileID: 2800000, guid: a186f8a87ca4f4d3aa864638ad5dfb65, type: 3}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
--- a/rolld_backend/game/package.json
+++ b/rolld_backend/game/package.json
@@ -4,7 +4,8 @@
  "main": "src/index.js",
  "scripts": {
    "start": "node src/index.js",
-    "dev": "node --watch src/index.js"
+    "dev": "node --watch src/index.js",
+    "schema:gen": "schema-codegen src/schema/GameState.js --csharp --namespace RolldSchema --output ../../game/Assets/Scripts/Network/Generated/"
  },
  "dependencies": {
    "@colyseus/core": "^0.17.39",
--- a/rolld_backend/game/src/index.js
+++ b/rolld_backend/game/src/index.js
@@ -56,8 +56,12 @@ const gameServer = new Server({

    app.post('/stats/update', (req, res) => {
      const parsed = statsUpdateSchema.safeParse(req.body);
-      if (!parsed.success) return res.status(400).json({ error: parsed.error.issues });
+      if (!parsed.success) {
+        console.warn('[Stats] Bad update request:', JSON.stringify(parsed.error.issues));
+        return res.status(400).json({ error: parsed.error.issues });
+      }
      const ok = Stats.update(parsed.data.name, parsed.data.stats);
+      console.log(`[Stats] Update for "${parsed.data.name}": ok=${ok}`, JSON.stringify(parsed.data.stats));
      res.json({ ok });
    });

--- a/rolld_backend/game/src/rooms/ArenaRoom.js
+++ b/rolld_backend/game/src/rooms/ArenaRoom.js
@@ -2,28 +2,27 @@ const { Room } = require("@colyseus/core");
 const { GameState, Player } = require("../schema/GameState");
 const Chat = require("../chat/ChatManager");

-const LOBBY_TIMEOUT = 30;
-const COUNTDOWN_DURATION = 3;
-const ROUND_END_DURATION = 5;
-
-const QUALIFY_RATIO = 0.6;
+// Free-roam: no rounds, no phases, no checkpoints. Players connect, move around, leave.
+// Schema fields (phase, countdown, roundNumber, etc.) are kept to preserve the
+// handshake — but state.phase is pinned to "playing" forever and other fields are
+// left at their default values. To fully drop them, regenerate the C# schema and
+// rebuild WebGL.

 class ArenaRoom extends Room {
  maxClients = 20;

  onCreate(options) {
    this.setState(new GameState());
+    this.state.phase = "playing"; // pinned: free-roam, no state machine
+    this.state.gameMode = "free";
    this.setPatchRate(16); // ~62.5 Hz
    this.setMetadata({ name: options?.roomName || ('Salle #' + this.roomId.substring(0, 6)) });

-    this._phaseTimer = null;
-    this._lobbyTimer = null;
-
-    console.log(`[ArenaRoom] Room ${this.roomId} created`);
+    console.log(`[ArenaRoom] Room ${this.roomId} created (free-roam)`);

    this.onMessage("position", (client, data) => {
      const player = this.state.players.get(client.sessionId);
-      if (!player || player.isEliminated) return;
+      if (!player) return;
      player.x = data.x ?? player.x;
      player.y = data.y ?? player.y;
      player.z = data.z ?? player.z;
@@ -40,14 +39,6 @@ class ArenaRoom extends Room {
      player.t = Date.now();
    });

-    this.onMessage("ready", (client) => {
-      const player = this.state.players.get(client.sessionId);
-      if (!player || this.state.phase !== "lobby") return;
-      player.isReady = true;
-      console.log(`[ArenaRoom] ${client.sessionId} ready`);
-      this._checkAllReady();
-    });
-
    this.onMessage("chat", (client, data) => {
      const player = this.state.players.get(client.sessionId);
      if (!player || !data.text) return;
@@ -55,18 +46,9 @@ class ArenaRoom extends Room {
      if (msg) this.broadcast("chat", msg);
    });

-    this.onMessage("checkpointReached", (client, data) => {
-      if (this.state.phase !== "playing") return;
-      const player = this.state.players.get(client.sessionId);
-      if (!player || player.isEliminated || player.isQualified) return;
-      const expected = player.checkpointIndex;
-      if (data.index !== expected) return;
-      player.checkpointIndex = data.index + 1;
-      const TOTAL_CHECKPOINTS = 5;
-      if (player.checkpointIndex >= TOTAL_CHECKPOINTS) {
-        this._qualifyPlayer(client.sessionId, "finish");
-      }
-    });
+    // Accept legacy "ready" / "checkpointReached" silently so old clients don't error.
+    this.onMessage("ready", () => {});
+    this.onMessage("checkpointReached", () => {});
  }

  onJoin(client, options) {
@@ -82,199 +64,22 @@ class ArenaRoom extends Room {
    player.z = spawn.z;
    player.t = Date.now();
    this.state.players.set(client.sessionId, player);
-    this._updatePlayersAlive();
-
-    if (this.state.players.size === 1 && this.state.phase === "lobby") {
-      this._startLobbyTimer();
-    }
  }

  onLeave(client, consented) {
    console.log(`[ArenaRoom] ${client.sessionId} left`);
    this.state.players.delete(client.sessionId);
-    this._updatePlayersAlive();
-    if (this.state.phase === "playing") {
-      this._checkRoundEndCondition();
-    }
  }

  onDispose() {
-    this._clearAllTimers();
    console.log(`[ArenaRoom] Room ${this.roomId} disposed`);
  }

-  // ─── Phase transitions ──────────────────────────────────────────────
-
-  _startLobbyTimer() {
-    if (this._lobbyTimer) return;
-    this._lobbyTimer = setTimeout(() => this._startCountdown(), LOBBY_TIMEOUT * 1000);
-    console.log(`[ArenaRoom] Lobby timer started (${LOBBY_TIMEOUT}s)`);
-  }
-
-  _checkAllReady() {
-    if (this.state.players.size < 2) return;
-    let allReady = true;
-    this.state.players.forEach((p) => { if (!p.isReady) allReady = false; });
-    if (allReady) {
-      clearTimeout(this._lobbyTimer);
-      this._lobbyTimer = null;
-      this._startCountdown();
-    }
-  }
-
-  _startCountdown() {
-    if (this.state.phase !== "lobby") return;
-    this.state.phase = "countdown";
-    this.state.countdown = COUNTDOWN_DURATION;
-    console.log(`[ArenaRoom] Countdown started`);
-
-    const tick = () => {
-      this.state.countdown -= 1;
-      if (this.state.countdown <= 0) {
-        this._startPlaying();
-      } else {
-        this._phaseTimer = setTimeout(tick, 1000);
-      }
-    };
-    this._phaseTimer = setTimeout(tick, 1000);
-  }
-
-  _startPlaying() {
-    this.state.gameMode = "race";
-    this.state.phase = "playing";
-    this.state.countdown = 0;
-
-    this.state.players.forEach((p) => {
-      p.isEliminated = false;
-      p.isQualified = false;
-      p.isReady = false;
-      p.checkpointIndex = 0;
-    });
-
-    this._updatePlayersAlive();
-
-    this.broadcast("roundStart", {
-      round: this.state.roundNumber,
-      mode: this.state.gameMode,
-      totalRounds: this.state.totalRounds,
-    });
-
-    console.log(`[ArenaRoom] Round ${this.state.roundNumber} started (race)`);
-
-  }
-
-  _endRound() {
-    if (this.state.phase !== "playing") return;
-    this._clearAllTimers();
-    this.state.phase = "roundEnd";
-    this.broadcast("roundEnd", { round: this.state.roundNumber });
-    console.log(`[ArenaRoom] Round ${this.state.roundNumber} ended`);
-
-    if (this.state.roundNumber >= this.state.totalRounds) {
-      this._phaseTimer = setTimeout(() => this._endGame(), ROUND_END_DURATION * 1000);
-    } else {
-      this._phaseTimer = setTimeout(() => this._nextRound(), ROUND_END_DURATION * 1000);
-    }
-  }
-
-  _nextRound() {
-    this.state.roundNumber += 1;
-    this.state.phase = "lobby";
-    this.state.players.forEach((p) => {
-      p.isReady = false;
-      const spawn = this._findSpawnPosition();
-      p.x = spawn.x; p.y = spawn.y; p.z = spawn.z;
-    });
-    this._updatePlayersAlive();
-    this._lobbyTimer = null;
-    this._startLobbyTimer();
-    console.log(`[ArenaRoom] Lobby for round ${this.state.roundNumber}`);
-  }
-
-  _endGame() {
-    this.state.phase = "gameEnd";
-    let winner = "";
-    let best = -1;
-    this.state.players.forEach((p) => {
-      const score = p.isQualified ? 1000 : p.checkpointIndex;
-      if (score > best) { best = score; winner = p.name; }
-    });
-    this.state.winnerName = winner;
-    this.broadcast("gameEnd", { winner });
-    console.log(`[ArenaRoom] Game over — winner: ${winner}`);
-  }
-
-  // ─── Elimination helpers ─────────────────────────────────────────────
-
-  _eliminatePlayer(sessionId, reason) {
-    const player = this.state.players.get(sessionId);
-    if (!player || player.isEliminated || player.isQualified) return;
-    player.isEliminated = true;
-    this._updatePlayersAlive();
-    this.broadcast("eliminated", { sessionId, name: player.name, reason });
-    console.log(`[ArenaRoom] ${player.name} (${sessionId}) eliminated: ${reason}`);
-    this._checkRoundEndCondition();
-  }
-
-  _qualifyPlayer(sessionId, reason) {
-    const player = this.state.players.get(sessionId);
-    if (!player || player.isQualified || player.isEliminated) return;
-    player.isQualified = true;
-    this._updatePlayersAlive();
-    this.broadcast("qualified", { sessionId, name: player.name });
-    console.log(`[ArenaRoom] ${player.name} (${sessionId}) qualified: ${reason}`);
-
-    const totalActive = this._getActiveCount();
-    const qualifiedCount = this._getQualifiedCount();
-    const toQualify = Math.ceil(totalActive * QUALIFY_RATIO);
-    if (qualifiedCount >= toQualify) {
-      this.state.players.forEach((p, id) => {
-        if (!p.isQualified && !p.isEliminated) {
-          this._eliminatePlayer(id, "too_slow");
-        }
-      });
-      this._endRound();
-    }
-  }
-
-  _checkRoundEndCondition() {
-    if (this.state.phase !== "playing") return;
-    const alive = this._getAliveCount();
-    if (alive === 0) this._endRound();
-  }
-
-  _getAliveCount() {
-    let n = 0;
-    this.state.players.forEach((p) => { if (!p.isEliminated && !p.isQualified) n++; });
-    return n;
-  }
-
-  _getQualifiedCount() {
-    let n = 0;
-    this.state.players.forEach((p) => { if (p.isQualified) n++; });
-    return n;
-  }
-
-  _getActiveCount() {
-    let n = 0;
-    this.state.players.forEach((p) => { if (!p.isEliminated) n++; });
-    return n;
-  }
-
-  _updatePlayersAlive() {
-    this.state.playersAlive = this._getAliveCount();
-  }
-
-  _clearAllTimers() {
-    if (this._phaseTimer) { clearTimeout(this._phaseTimer); this._phaseTimer = null; }
-    if (this._lobbyTimer) { clearTimeout(this._lobbyTimer); this._lobbyTimer = null; }
-  }
-
  // ─── Spawn helper ────────────────────────────────────────────────────

  _findSpawnPosition() {
-    const MIN_DIST = 3.0;
-    const SPAWN_Y = 5;
+    const MIN_DIST = 5.0;
+    const SPAWN_Y = 1.5;
    const RANGE = 20;
    const existing = [];
    this.state.players.forEach((p) => existing.push({ x: p.x, z: p.z }));
@@ -285,7 +90,7 @@ class ArenaRoom extends Room {

    let best = { x: 0, y: SPAWN_Y, z: 0 };
    let bestDist = 0;
-    for (let i = 0; i < 10; i++) {
+    for (let i = 0; i < 20; i++) {
      const cx = (Math.random() - 0.5) * RANGE;
      const cz = (Math.random() - 0.5) * RANGE;
      let minD = Infinity;
Author	SHA1	Message	Date
kerboul	103f8859d4	feat(Car): wire NWH Vehicle Physics 2 — scripts only, scene/prefabs still TODO Code-only first pass. The local Player.prefab (ball) is still in the scene until the user creates the PlayerCar / RemoteCar prefab variants in the Editor. New scripts: - VehicleLocalSetup: attaches name label + colored capsule marker to the local vehicle, registers its Rigidbody with NetworkManager for broadcast. - RemoteVehicleSync: snapshot interpolation for remote vehicles. Disables the NWH VehicleController + every WheelController + every AudioSource on init. Makes the rigidbody kinematic, MovePosition-driven from network. Disables all non-trigger colliders during the 1.5s spawn grace window to avoid ejecting overlapping locals at connect. Adapted scripts: - NetworkManager: RegisterLocalVehicle(Transform, Rigidbody) replaces the FindFirstObjectByType<PlayerController>() lookup. Remote spawn now wires RemoteVehicleSync instead of RemotePlayerController. - LobbyUI: OnConnected drives VehicleLocalSetup.SetupLocal; OnDisconnected toggles NWH.VehicleController instead of PlayerController. - GameManager.SetPlayerActive: toggles VehicleController, not PlayerController. - DebugNetworkUI: live position read from VehicleController.vehicleRigidbody. - ChatUI: drops PlayerController.ResetInputs() (NWH polls Input System each frame; no manual reset needed when chat opens). - StatsTracker: drops dead _pc field; Rigidbody still gets resolved via GetComponent on the host GameObject (will be the vehicle on Car). Frontend (deployed earlier on master): build_ball replaces pretty_build assets.	2026-05-20 18:34:40 +02:00
kerboul	32becc12f9	feat: free-roam mode + fix multiplayer sync + remote player polish Backend (ArenaRoom.js): - Strip race state machine (lobby/countdown/playing/round/qualify). Persistent "playing" phase, no rounds, no checkpoints. Free-roam multi. - Spawn lowered to y=1.5 (was 5) + MIN_DIST raised to 5 (was 3) to avoid ejecting overlapping players at connect. - Schema kept intact (handshake-safe); deprecated fields default-valued. - npm run schema:gen wired (anti-drift codegen). Unity client: - C# schema generated by schema-codegen into RolldSchema namespace (Generated/GameState.cs, Generated/Player.cs). NetworkSchema.cs removed — handshake no longer scans global namespace. - NetworkManager: typed Room<GameState>, callbacks rebound, seeds players already in room on join. - RemotePlayerController: * Post-spawn 1.5s grace window (BumpReady) — local PlayerController.HandleBump ignores remotes during grace. * Solid SphereCollider disabled during grace, re-enabled afterwards — fixes the kinematic-vs-dynamic eject when a new client spawns inside someone. * NPCBall prefab material switched from invisible-in-URP Default-Material to BallShader.shadergraph. * TrailRenderer added, tinted with player's chosen color. * Name label distance-scales (1x-8x) so pseudos remain readable far away. - GameHUD: OnGUI emptied — race UI (rounds, mode, timer, playersAlive) gone. - GameCanvas.jsx: BUILD_PREFIX/VERSION bumped for cache-bust. Frontend WebGL build (pretty_build): final build with all the above.	2026-05-20 12:25:48 +02:00
kerboul	ec05fb8ddd	build: WebGL last_build 20260518 + fix NetworkManager MapSchema iteration - New WebGL build (data +6MB, wasm +92KB) with all bug fixes - Fix MapSchema foreach: iterate via .Keys with explicit casts - Fix sbyte->int cast for playersAlive Listen callback - Updated Tutorial.unity scene Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-05-18 08:58:37 +02:00
kerboul	a4792759e6	fix: CameraOrbitKeyboard + playersAlive HUD - CameraOrbitKeyboard: clic droit = unlock, clic gauche = re-lock (coherent avec PlayerController) - CameraOrbitKeyboard: bloque les inputs quand ChatUI est ouvert - CameraOrbitKeyboard: OnEnable ne verrouille plus la souris si un panel UI est ouvert - NetworkManager: alimente GameHUD.SetPlayersAlive via Listen(playersAlive) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-05-18 08:25:25 +02:00
kerboul	e2fa2ba8a9	fix: chat input isolation, mouse lock, multi spawn - PlayerController: block WASD/jump callbacks when ChatUI is open - PlayerController: clic droit = unlock souris, clic gauche = re-lock (n'est plus un toggle) - PlayerController: ajoute ResetInputs() appelé à l'ouverture du chat - ChatUI: appelle ResetInputs() quand le panel s'ouvre pour éviter les touches collées - NetworkManager: seed les joueurs déjà présents dans la room à la connexion (les OnAdd Colyseus peuvent être manqués si l'état est décodé avant l'enregistrement des callbacks) - NetworkManager: garde anti-doublon dans OnPlayerAdd - NetworkManager: fallback sphere si remotePlayerPrefab est null Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-05-18 08:22:40 +02:00
kerboul	aa27725c4e	feat: nouveau build WebGL last_build + fixes stats et schema Colyseus - Unity build last_build remplace build_mai - NetworkSchema.cs: correction types sbyte pour int8 (fix OverflowException Colyseus) - StatsTracker: envoi periodique toutes les 30s, plus de dependance aux round events - StatsTracker: cooldown client 6s pour respecter le rate-limit serveur - StatsPage: correction row.value au lieu de row[activeTab] - StatsPage: suppression onglet Courses (racesPlayed) - Backend index.js: logging POST /stats/update - Scene Tutorial: mise a jour, suppression assets obsoletes (TutorialInfo, physicMaterials) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-05-18 00:12:14 +02:00
kerboul	cf7d73ba08	docs: add README with badges and architecture overview	2026-05-18 00:03:56 +02:00