Add platform-specific implementations for assets, audio, WebSocket, and rendering on Desktop and WebAssembly platforms. Introduce embedded assets for WebAssembly and native file handling for Desktop. Add platform-specific chunk loading and game state synchronization.
This commit is contained in:
Sebastian Unterschütz
89
cmd/client/web/README.md
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89
cmd/client/web/README.md
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# Escape From Teacher - WASM Web Version
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## 🎮 Starten
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```bash
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# Im web-Verzeichnis einen HTTP-Server starten
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cd cmd/client/web
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python3 -m http.server 8000
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```
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Dann im Browser öffnen: **http://localhost:8000**
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## ✨ Features
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### Modernes HTML/CSS Menü
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- **Custom Font**: Nutzt `front.ttf` aus dem assets-Ordner
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- **Responsive Design**: Funktioniert auf Desktop, Tablet und Smartphone
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- **Glassmorphism**: Moderner durchsichtiger Look mit Blur-Effekt
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- **Smooth Animations**: Fade-in, Slide-up, Pulse-Effekte
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### Menü-Optionen
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1. **Solo spielen**: Einzelspieler-Modus
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2. **Co-op spielen**: Multiplayer mit Raum-Code
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3. **Leaderboard**: Top 10 Spieler anzeigen
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4. **Einstellungen**: Musik & SFX Lautstärke einstellen
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### Mobile-Optimiert
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- Touch-freundliche Buttons
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- Responsive Layout für kleine Bildschirme
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- Viewport-Anpassung für Smartphones
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## 🎨 Design-Features
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- **Gradient Background**: Lila-Blauer Farbverlauf
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- **Button Hover-Effekte**: Ripple-Animationen
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- **Custom Scrollbars**: Für Leaderboard
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- **Loading Screen**: Spinner während WASM lädt
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- **Emoji-Icons**: 🏃 👥 🏆 ⚙️
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## 📁 Dateien
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- `index.html`: HTML-Struktur
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- `style.css`: Alle Styles mit Custom Font
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- `game.js`: JavaScript-Bridge zwischen HTML und WASM
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- `wasm_exec.js`: Go WASM Runtime (von Go kopiert)
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- `main.wasm`: Kompiliertes Spiel
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## 🔧 Entwicklung
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### WASM neu kompilieren
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```bash
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GOOS=js GOARCH=wasm go build -o cmd/client/web/main.wasm ./cmd/client
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```
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### Font ändern
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Ersetze `cmd/client/assets/front.ttf` und aktualisiere den Pfad in `style.css`:
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```css
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@font-face {
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font-family: 'GameFont';
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src: url('../assets/front.ttf') format('truetype');
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}
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```
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## 🎯 Keyboard Shortcuts
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- **ESC**: Zurück zum Menü (während des Spiels)
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## 📱 Mobile Testing
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Für lokales Mobile Testing:
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```bash
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python3 -m http.server 8000
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# Öffne auf Smartphone: http://[DEINE-IP]:8000
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```
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## 🚀 Production Deployment
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Für Production alle Dateien hochladen:
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- index.html
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- style.css
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- game.js
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- wasm_exec.js
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- main.wasm
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- assets/ (Font-Ordner)
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Server muss WASM mit korrektem MIME-Type ausliefern:
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```
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Content-Type: application/wasm
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```
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1
cmd/client/web/assets
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1
cmd/client/web/assets
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../assets
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341
cmd/client/web/game.js
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341
cmd/client/web/game.js
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// Game State
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let wasmReady = false;
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let gameStarted = false;
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let audioMuted = false;
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// Initialize WASM
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async function initWASM() {
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const go = new Go();
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try {
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const result = await WebAssembly.instantiateStreaming(fetch("main.wasm"), go.importObject);
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go.run(result.instance);
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wasmReady = true;
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// Hide loading screen
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document.getElementById('loading').style.display = 'none';
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console.log('✅ WASM loaded successfully');
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// Load initial leaderboard
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setTimeout(() => {
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if (window.requestLeaderboard) {
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window.requestLeaderboard();
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}
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}, 500);
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} catch (err) {
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console.error('❌ Failed to load WASM:', err);
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document.getElementById('loading').innerHTML = '<div class="spinner"></div><p>Fehler beim Laden: ' + err.message + '</p>';
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}
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}
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// Menu Navigation
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function showMainMenu() {
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hideAllScreens();
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document.getElementById('menu').classList.remove('hidden');
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}
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function showCoopMenu() {
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hideAllScreens();
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document.getElementById('coopMenu').classList.remove('hidden');
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}
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function showSettings() {
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hideAllScreens();
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document.getElementById('settingsMenu').classList.remove('hidden');
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}
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function showLeaderboard() {
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hideAllScreens();
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document.getElementById('leaderboardMenu').classList.remove('hidden');
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loadLeaderboard();
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}
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function hideAllScreens() {
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document.querySelectorAll('.overlay-screen').forEach(screen => {
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screen.classList.add('hidden');
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});
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}
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function hideMenu() {
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document.getElementById('menu').style.display = 'none';
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// Canvas sichtbar machen für Gameplay
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const canvas = document.querySelector('canvas');
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if (canvas) {
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canvas.classList.add('game-active');
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}
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}
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function showMenu() {
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document.getElementById('menu').style.display = 'flex';
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document.getElementById('menu').classList.remove('hidden');
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showMainMenu();
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// Canvas verstecken im Menü
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const canvas = document.querySelector('canvas');
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if (canvas) {
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canvas.classList.remove('game-active');
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}
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}
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// Game Functions
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function startSoloGame() {
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if (!wasmReady) {
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alert('Spiel wird noch geladen...');
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return;
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}
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const playerName = document.getElementById('playerName').value || 'ANON';
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// Store in localStorage for WASM to read
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localStorage.setItem('escape_player_name', playerName);
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localStorage.setItem('escape_game_mode', 'solo');
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localStorage.setItem('escape_room_id', '');
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// Hide menu and show canvas
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hideAllScreens();
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gameStarted = true;
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// Trigger WASM game start
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if (window.startGame) {
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window.startGame('solo', playerName, '');
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}
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console.log('🎮 Solo game started:', playerName);
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}
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function createRoom() {
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if (!wasmReady) {
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alert('Spiel wird noch geladen...');
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return;
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}
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const playerName = document.getElementById('playerName').value || 'ANON';
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const roomID = 'R' + Math.random().toString(36).substr(2, 5).toUpperCase();
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const teamName = 'TEAM';
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// Store in localStorage
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localStorage.setItem('escape_player_name', playerName);
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localStorage.setItem('escape_game_mode', 'coop');
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localStorage.setItem('escape_room_id', roomID);
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localStorage.setItem('escape_team_name', teamName);
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localStorage.setItem('escape_is_host', 'true');
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// Hide menu and show canvas (Lobby wird vom WASM gezeichnet)
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hideAllScreens();
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gameStarted = true;
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// Canvas sichtbar machen für Lobby
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const canvas = document.querySelector('canvas');
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if (canvas) {
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canvas.classList.add('game-active');
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}
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// Trigger WASM game start
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if (window.startGame) {
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window.startGame('coop', playerName, roomID, teamName, true);
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}
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console.log('🎮 Room created:', roomID);
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}
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function joinRoom() {
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if (!wasmReady) {
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alert('Spiel wird noch geladen...');
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return;
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}
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const playerName = document.getElementById('playerName').value || 'ANON';
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const roomID = document.getElementById('joinRoomCode').value.toUpperCase();
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const teamName = document.getElementById('teamNameJoin').value || 'TEAM';
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if (!roomID || roomID.length < 4) {
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alert('Bitte gib einen gültigen Raum-Code ein!');
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return;
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}
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// Store in localStorage
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localStorage.setItem('escape_player_name', playerName);
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localStorage.setItem('escape_game_mode', 'coop');
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localStorage.setItem('escape_room_id', roomID);
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localStorage.setItem('escape_team_name', teamName);
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localStorage.setItem('escape_is_host', 'false');
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// Hide menu and show canvas
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hideAllScreens();
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gameStarted = true;
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// Canvas sichtbar machen für Lobby
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const canvas = document.querySelector('canvas');
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if (canvas) {
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canvas.classList.add('game-active');
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}
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// Trigger WASM game start
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if (window.startGame) {
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window.startGame('coop', playerName, roomID, teamName, false);
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}
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console.log('🎮 Joining room:', roomID);
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}
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function loadLeaderboard() {
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const list = document.getElementById('leaderboardList');
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list.innerHTML = '<div style="text-align:center; padding:20px;">Lädt Leaderboard...</div>';
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// Request leaderboard from WASM
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if (window.requestLeaderboard) {
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window.requestLeaderboard();
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}
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// Fallback timeout
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setTimeout(() => {
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if (list.innerHTML.includes('Lädt')) {
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list.innerHTML = '<div style="text-align:center; padding:20px; color:#888;">Keine Daten verfügbar</div>';
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}
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}, 3000);
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}
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// Called by WASM to update leaderboard
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function updateLeaderboard(entries) {
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// Update main leaderboard page
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const list = document.getElementById('leaderboardList');
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// Update start screen leaderboard
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const startList = document.getElementById('startLeaderboardList');
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if (!entries || entries.length === 0) {
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const emptyMsg = '<div style="text-align:center; padding:20px; color:#888;">Noch keine Einträge</div>';
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if (list) list.innerHTML = emptyMsg;
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if (startList) startList.innerHTML = emptyMsg;
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return;
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}
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const html = entries.slice(0, 10).map((entry, index) => {
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const medal = index === 0 ? '🥇' : index === 1 ? '🥈' : index === 2 ? '🥉' : `${index + 1}.`;
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return `
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<div class="leaderboard-item">
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<div class="leaderboard-rank">${medal}</div>
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<div class="leaderboard-name">${entry.player_name}</div>
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<div class="leaderboard-score">${entry.score}</div>
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</div>
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`;
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}).join('');
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if (list) list.innerHTML = html;
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if (startList) startList.innerHTML = html;
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console.log('📊 Leaderboard updated with', entries.length, 'entries');
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}
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// Audio Toggle
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function toggleAudio() {
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audioMuted = !audioMuted;
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const btn = document.getElementById('mute-btn');
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if (audioMuted) {
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btn.textContent = '🔇';
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if (window.setMusicVolume) window.setMusicVolume(0);
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if (window.setSFXVolume) window.setSFXVolume(0);
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} else {
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btn.textContent = '🔊';
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const musicVol = parseInt(localStorage.getItem('escape_music_volume') || 70) / 100;
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const sfxVol = parseInt(localStorage.getItem('escape_sfx_volume') || 70) / 100;
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if (window.setMusicVolume) window.setMusicVolume(musicVol);
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if (window.setSFXVolume) window.setSFXVolume(sfxVol);
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}
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}
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// Settings Volume Sliders
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document.addEventListener('DOMContentLoaded', () => {
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const musicSlider = document.getElementById('musicVolume');
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const sfxSlider = document.getElementById('sfxVolume');
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const musicValue = document.getElementById('musicValue');
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const sfxValue = document.getElementById('sfxValue');
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if (musicSlider) {
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musicSlider.addEventListener('input', (e) => {
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const value = e.target.value;
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musicValue.textContent = value + '%';
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localStorage.setItem('escape_music_volume', value);
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if (window.setMusicVolume && !audioMuted) {
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window.setMusicVolume(value / 100);
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}
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});
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// Load saved value
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const savedMusic = localStorage.getItem('escape_music_volume') || 70;
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musicSlider.value = savedMusic;
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musicValue.textContent = savedMusic + '%';
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}
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if (sfxSlider) {
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sfxSlider.addEventListener('input', (e) => {
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const value = e.target.value;
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sfxValue.textContent = value + '%';
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localStorage.setItem('escape_sfx_volume', value);
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if (window.setSFXVolume && !audioMuted) {
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window.setSFXVolume(value / 100);
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}
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});
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// Load saved value
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const savedSFX = localStorage.getItem('escape_sfx_volume') || 70;
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sfxSlider.value = savedSFX;
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sfxValue.textContent = savedSFX + '%';
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}
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// Load saved player name
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const savedName = localStorage.getItem('escape_player_name');
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if (savedName) {
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document.getElementById('playerName').value = savedName;
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}
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// Load local highscore
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const highscore = localStorage.getItem('escape_local_highscore') || 0;
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const hsElement = document.getElementById('localHighscore');
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if (hsElement) {
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hsElement.textContent = highscore;
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}
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});
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// Keyboard shortcuts
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document.addEventListener('keydown', (e) => {
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// ESC to show menu (only if game is started)
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if (e.key === 'Escape' && gameStarted) {
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showMenu();
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gameStarted = false;
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}
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});
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// Show Game Over Screen (called by WASM)
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function showGameOver(score) {
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hideAllScreens();
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document.getElementById('gameOverScreen').classList.remove('hidden');
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document.getElementById('finalScore').textContent = score;
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// Update local highscore
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const currentHS = parseInt(localStorage.getItem('escape_local_highscore') || 0);
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if (score > currentHS) {
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localStorage.setItem('escape_local_highscore', score);
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}
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// Request leaderboard
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if (window.requestLeaderboard) {
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window.requestLeaderboard();
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}
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console.log('💀 Game Over! Score:', score);
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}
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// Export functions for WASM to call
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window.showMenu = showMenu;
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window.hideMenu = hideMenu;
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window.updateLeaderboard = updateLeaderboard;
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window.showGameOver = showGameOver;
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// Initialize on load
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initWASM();
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console.log('🎮 Game.js loaded - Retro Edition');
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147
cmd/client/web/index.html
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cmd/client/web/index.html
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover">
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<title>Escape From Teacher</title>
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<link rel="stylesheet" href="style.css">
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</head>
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<body>
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<button id="mute-btn" onclick="toggleAudio()">🔊</button>
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<div id="rotate-overlay">
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<div class="icon">📱↻</div>
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<p>Bitte Gerät drehen!</p>
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<small>Querformat benötigt</small>
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</div>
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<div id="game-container">
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<!-- MAIN MENU -->
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<div id="menu" class="overlay-screen">
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<div id="startScreen">
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<div class="start-left">
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<h1>ESCAPE FROM<br>TEACHER</h1>
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<p style="font-size: 12px; color: #aaa;">Dein Rekord: <span id="localHighscore" style="color:yellow">0</span></p>
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<input type="text" id="playerName" placeholder="NAME (4 ZEICHEN)" maxlength="15" style="text-transform:uppercase;">
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<button id="startBtn" onclick="startSoloGame()">SOLO STARTEN</button>
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<button id="coopBtn" onclick="showCoopMenu()">CO-OP SPIELEN</button>
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<div class="info-box">
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<div class="info-title">SCHUL-NEWS</div>
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<p>
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• Der Lehrer ist hinter dir her!<br>
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• Spring über Hindernisse.<br>
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• Sammle Power-Ups für Vorteile!
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</p>
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</div>
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<div class="info-box">
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<div class="info-title">STEUERUNG</div>
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<p>
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PC: <strong>Leertaste</strong> (Springen), <strong>WASD/Pfeile</strong> (Bewegen)<br>
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Handy: <strong>Bildschirm-Buttons</strong>
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</p>
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</div>
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<div class="legal-bar">
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<button class="legal-btn" onclick="showLeaderboard()">🏆 TOP 10</button>
|
||||
<button class="legal-btn" onclick="showSettings()">⚙️ EINSTELLUNGEN</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="start-right">
|
||||
<div class="hall-of-fame-box">
|
||||
<h3>🏆 TOP SCHÜLER</h3>
|
||||
<div id="startLeaderboardList">Lade...</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- CO-OP MENU -->
|
||||
<div id="coopMenu" class="overlay-screen hidden">
|
||||
<div class="center-box">
|
||||
<h1>CO-OP MODUS</h1>
|
||||
|
||||
<button class="big-btn" onclick="createRoom()">RAUM ERSTELLEN</button>
|
||||
|
||||
<div style="margin: 20px 0;">- ODER -</div>
|
||||
|
||||
<input type="text" id="joinRoomCode" placeholder="RAUM-CODE" maxlength="6" style="text-transform:uppercase;">
|
||||
<input type="text" id="teamNameJoin" placeholder="TEAM-NAME" maxlength="15">
|
||||
<button onclick="joinRoom()">RAUM BEITRETEN</button>
|
||||
|
||||
<button class="back-btn" onclick="showMainMenu()">← ZURÜCK</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- SETTINGS MENU -->
|
||||
<div id="settingsMenu" class="overlay-screen hidden">
|
||||
<div class="center-box">
|
||||
<h1>EINSTELLUNGEN</h1>
|
||||
|
||||
<div class="settings-group">
|
||||
<div class="setting-item">
|
||||
<label>MUSIK LAUTSTÄRKE:</label>
|
||||
<input type="range" id="musicVolume" min="0" max="100" value="70">
|
||||
<span id="musicValue">70%</span>
|
||||
</div>
|
||||
|
||||
<div class="setting-item">
|
||||
<label>SFX LAUTSTÄRKE:</label>
|
||||
<input type="range" id="sfxVolume" min="0" max="100" value="70">
|
||||
<span id="sfxValue">70%</span>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button class="back-btn" onclick="showMainMenu()">← ZURÜCK</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- LEADERBOARD MENU -->
|
||||
<div id="leaderboardMenu" class="overlay-screen hidden">
|
||||
<div class="center-box">
|
||||
<h1>🏆 TOP 10 LEADERBOARD</h1>
|
||||
|
||||
<div id="leaderboardList" class="leaderboard-box">
|
||||
Lade Leaderboard...
|
||||
</div>
|
||||
|
||||
<button class="back-btn" onclick="showMainMenu()">← ZURÜCK</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- GAME OVER SCREEN -->
|
||||
<div id="gameOverScreen" class="overlay-screen hidden">
|
||||
<div class="center-box">
|
||||
<h1>ERWISCHT!</h1>
|
||||
|
||||
<p style="font-size: 18px; margin: 20px 0;">
|
||||
Dein Score: <span id="finalScore" style="color:yellow; font-size: 24px;">0</span>
|
||||
</p>
|
||||
|
||||
<div id="leaderboardList" class="leaderboard-box" style="margin: 20px 0;">
|
||||
Lade Leaderboard...
|
||||
</div>
|
||||
|
||||
<button class="big-btn" onclick="location.reload()" style="background: #ff4444; margin-top: 20px;">NOCHMAL SPIELEN</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- LOADING SCREEN -->
|
||||
<div id="loading" class="loading-screen">
|
||||
<div class="spinner"></div>
|
||||
<p>Lade Escape From Teacher...</p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- WASM Execution -->
|
||||
<script src="wasm_exec.js"></script>
|
||||
<script src="game.js"></script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
BIN
cmd/client/web/main.wasm
Executable file
BIN
cmd/client/web/main.wasm
Executable file
Binary file not shown.
1
cmd/client/web/style.css
Normal file
1
cmd/client/web/style.css
Normal file
File diff suppressed because one or more lines are too long
575
cmd/client/web/wasm_exec.js
Normal file
575
cmd/client/web/wasm_exec.js
Normal file
@@ -0,0 +1,575 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
"use strict";
|
||||
|
||||
(() => {
|
||||
const enosys = () => {
|
||||
const err = new Error("not implemented");
|
||||
err.code = "ENOSYS";
|
||||
return err;
|
||||
};
|
||||
|
||||
if (!globalThis.fs) {
|
||||
let outputBuf = "";
|
||||
globalThis.fs = {
|
||||
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused
|
||||
writeSync(fd, buf) {
|
||||
outputBuf += decoder.decode(buf);
|
||||
const nl = outputBuf.lastIndexOf("\n");
|
||||
if (nl != -1) {
|
||||
console.log(outputBuf.substring(0, nl));
|
||||
outputBuf = outputBuf.substring(nl + 1);
|
||||
}
|
||||
return buf.length;
|
||||
},
|
||||
write(fd, buf, offset, length, position, callback) {
|
||||
if (offset !== 0 || length !== buf.length || position !== null) {
|
||||
callback(enosys());
|
||||
return;
|
||||
}
|
||||
const n = this.writeSync(fd, buf);
|
||||
callback(null, n);
|
||||
},
|
||||
chmod(path, mode, callback) { callback(enosys()); },
|
||||
chown(path, uid, gid, callback) { callback(enosys()); },
|
||||
close(fd, callback) { callback(enosys()); },
|
||||
fchmod(fd, mode, callback) { callback(enosys()); },
|
||||
fchown(fd, uid, gid, callback) { callback(enosys()); },
|
||||
fstat(fd, callback) { callback(enosys()); },
|
||||
fsync(fd, callback) { callback(null); },
|
||||
ftruncate(fd, length, callback) { callback(enosys()); },
|
||||
lchown(path, uid, gid, callback) { callback(enosys()); },
|
||||
link(path, link, callback) { callback(enosys()); },
|
||||
lstat(path, callback) { callback(enosys()); },
|
||||
mkdir(path, perm, callback) { callback(enosys()); },
|
||||
open(path, flags, mode, callback) { callback(enosys()); },
|
||||
read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
|
||||
readdir(path, callback) { callback(enosys()); },
|
||||
readlink(path, callback) { callback(enosys()); },
|
||||
rename(from, to, callback) { callback(enosys()); },
|
||||
rmdir(path, callback) { callback(enosys()); },
|
||||
stat(path, callback) { callback(enosys()); },
|
||||
symlink(path, link, callback) { callback(enosys()); },
|
||||
truncate(path, length, callback) { callback(enosys()); },
|
||||
unlink(path, callback) { callback(enosys()); },
|
||||
utimes(path, atime, mtime, callback) { callback(enosys()); },
|
||||
};
|
||||
}
|
||||
|
||||
if (!globalThis.process) {
|
||||
globalThis.process = {
|
||||
getuid() { return -1; },
|
||||
getgid() { return -1; },
|
||||
geteuid() { return -1; },
|
||||
getegid() { return -1; },
|
||||
getgroups() { throw enosys(); },
|
||||
pid: -1,
|
||||
ppid: -1,
|
||||
umask() { throw enosys(); },
|
||||
cwd() { throw enosys(); },
|
||||
chdir() { throw enosys(); },
|
||||
}
|
||||
}
|
||||
|
||||
if (!globalThis.path) {
|
||||
globalThis.path = {
|
||||
resolve(...pathSegments) {
|
||||
return pathSegments.join("/");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!globalThis.crypto) {
|
||||
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
|
||||
}
|
||||
|
||||
if (!globalThis.performance) {
|
||||
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
|
||||
}
|
||||
|
||||
if (!globalThis.TextEncoder) {
|
||||
throw new Error("globalThis.TextEncoder is not available, polyfill required");
|
||||
}
|
||||
|
||||
if (!globalThis.TextDecoder) {
|
||||
throw new Error("globalThis.TextDecoder is not available, polyfill required");
|
||||
}
|
||||
|
||||
const encoder = new TextEncoder("utf-8");
|
||||
const decoder = new TextDecoder("utf-8");
|
||||
|
||||
globalThis.Go = class {
|
||||
constructor() {
|
||||
this.argv = ["js"];
|
||||
this.env = {};
|
||||
this.exit = (code) => {
|
||||
if (code !== 0) {
|
||||
console.warn("exit code:", code);
|
||||
}
|
||||
};
|
||||
this._exitPromise = new Promise((resolve) => {
|
||||
this._resolveExitPromise = resolve;
|
||||
});
|
||||
this._pendingEvent = null;
|
||||
this._scheduledTimeouts = new Map();
|
||||
this._nextCallbackTimeoutID = 1;
|
||||
|
||||
const setInt64 = (addr, v) => {
|
||||
this.mem.setUint32(addr + 0, v, true);
|
||||
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
|
||||
}
|
||||
|
||||
const setInt32 = (addr, v) => {
|
||||
this.mem.setUint32(addr + 0, v, true);
|
||||
}
|
||||
|
||||
const getInt64 = (addr) => {
|
||||
const low = this.mem.getUint32(addr + 0, true);
|
||||
const high = this.mem.getInt32(addr + 4, true);
|
||||
return low + high * 4294967296;
|
||||
}
|
||||
|
||||
const loadValue = (addr) => {
|
||||
const f = this.mem.getFloat64(addr, true);
|
||||
if (f === 0) {
|
||||
return undefined;
|
||||
}
|
||||
if (!isNaN(f)) {
|
||||
return f;
|
||||
}
|
||||
|
||||
const id = this.mem.getUint32(addr, true);
|
||||
return this._values[id];
|
||||
}
|
||||
|
||||
const storeValue = (addr, v) => {
|
||||
const nanHead = 0x7FF80000;
|
||||
|
||||
if (typeof v === "number" && v !== 0) {
|
||||
if (isNaN(v)) {
|
||||
this.mem.setUint32(addr + 4, nanHead, true);
|
||||
this.mem.setUint32(addr, 0, true);
|
||||
return;
|
||||
}
|
||||
this.mem.setFloat64(addr, v, true);
|
||||
return;
|
||||
}
|
||||
|
||||
if (v === undefined) {
|
||||
this.mem.setFloat64(addr, 0, true);
|
||||
return;
|
||||
}
|
||||
|
||||
let id = this._ids.get(v);
|
||||
if (id === undefined) {
|
||||
id = this._idPool.pop();
|
||||
if (id === undefined) {
|
||||
id = this._values.length;
|
||||
}
|
||||
this._values[id] = v;
|
||||
this._goRefCounts[id] = 0;
|
||||
this._ids.set(v, id);
|
||||
}
|
||||
this._goRefCounts[id]++;
|
||||
let typeFlag = 0;
|
||||
switch (typeof v) {
|
||||
case "object":
|
||||
if (v !== null) {
|
||||
typeFlag = 1;
|
||||
}
|
||||
break;
|
||||
case "string":
|
||||
typeFlag = 2;
|
||||
break;
|
||||
case "symbol":
|
||||
typeFlag = 3;
|
||||
break;
|
||||
case "function":
|
||||
typeFlag = 4;
|
||||
break;
|
||||
}
|
||||
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
|
||||
this.mem.setUint32(addr, id, true);
|
||||
}
|
||||
|
||||
const loadSlice = (addr) => {
|
||||
const array = getInt64(addr + 0);
|
||||
const len = getInt64(addr + 8);
|
||||
return new Uint8Array(this._inst.exports.mem.buffer, array, len);
|
||||
}
|
||||
|
||||
const loadSliceOfValues = (addr) => {
|
||||
const array = getInt64(addr + 0);
|
||||
const len = getInt64(addr + 8);
|
||||
const a = new Array(len);
|
||||
for (let i = 0; i < len; i++) {
|
||||
a[i] = loadValue(array + i * 8);
|
||||
}
|
||||
return a;
|
||||
}
|
||||
|
||||
const loadString = (addr) => {
|
||||
const saddr = getInt64(addr + 0);
|
||||
const len = getInt64(addr + 8);
|
||||
return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
|
||||
}
|
||||
|
||||
const testCallExport = (a, b) => {
|
||||
this._inst.exports.testExport0();
|
||||
return this._inst.exports.testExport(a, b);
|
||||
}
|
||||
|
||||
const timeOrigin = Date.now() - performance.now();
|
||||
this.importObject = {
|
||||
_gotest: {
|
||||
add: (a, b) => a + b,
|
||||
callExport: testCallExport,
|
||||
},
|
||||
gojs: {
|
||||
// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
|
||||
// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
|
||||
// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
|
||||
// This changes the SP, thus we have to update the SP used by the imported function.
|
||||
|
||||
// func wasmExit(code int32)
|
||||
"runtime.wasmExit": (sp) => {
|
||||
sp >>>= 0;
|
||||
const code = this.mem.getInt32(sp + 8, true);
|
||||
this.exited = true;
|
||||
delete this._inst;
|
||||
delete this._values;
|
||||
delete this._goRefCounts;
|
||||
delete this._ids;
|
||||
delete this._idPool;
|
||||
this.exit(code);
|
||||
},
|
||||
|
||||
// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
|
||||
"runtime.wasmWrite": (sp) => {
|
||||
sp >>>= 0;
|
||||
const fd = getInt64(sp + 8);
|
||||
const p = getInt64(sp + 16);
|
||||
const n = this.mem.getInt32(sp + 24, true);
|
||||
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
|
||||
},
|
||||
|
||||
// func resetMemoryDataView()
|
||||
"runtime.resetMemoryDataView": (sp) => {
|
||||
sp >>>= 0;
|
||||
this.mem = new DataView(this._inst.exports.mem.buffer);
|
||||
},
|
||||
|
||||
// func nanotime1() int64
|
||||
"runtime.nanotime1": (sp) => {
|
||||
sp >>>= 0;
|
||||
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
|
||||
},
|
||||
|
||||
// func walltime() (sec int64, nsec int32)
|
||||
"runtime.walltime": (sp) => {
|
||||
sp >>>= 0;
|
||||
const msec = (new Date).getTime();
|
||||
setInt64(sp + 8, msec / 1000);
|
||||
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
|
||||
},
|
||||
|
||||
// func scheduleTimeoutEvent(delay int64) int32
|
||||
"runtime.scheduleTimeoutEvent": (sp) => {
|
||||
sp >>>= 0;
|
||||
const id = this._nextCallbackTimeoutID;
|
||||
this._nextCallbackTimeoutID++;
|
||||
this._scheduledTimeouts.set(id, setTimeout(
|
||||
() => {
|
||||
this._resume();
|
||||
while (this._scheduledTimeouts.has(id)) {
|
||||
// for some reason Go failed to register the timeout event, log and try again
|
||||
// (temporary workaround for https://github.com/golang/go/issues/28975)
|
||||
console.warn("scheduleTimeoutEvent: missed timeout event");
|
||||
this._resume();
|
||||
}
|
||||
},
|
||||
getInt64(sp + 8),
|
||||
));
|
||||
this.mem.setInt32(sp + 16, id, true);
|
||||
},
|
||||
|
||||
// func clearTimeoutEvent(id int32)
|
||||
"runtime.clearTimeoutEvent": (sp) => {
|
||||
sp >>>= 0;
|
||||
const id = this.mem.getInt32(sp + 8, true);
|
||||
clearTimeout(this._scheduledTimeouts.get(id));
|
||||
this._scheduledTimeouts.delete(id);
|
||||
},
|
||||
|
||||
// func getRandomData(r []byte)
|
||||
"runtime.getRandomData": (sp) => {
|
||||
sp >>>= 0;
|
||||
crypto.getRandomValues(loadSlice(sp + 8));
|
||||
},
|
||||
|
||||
// func finalizeRef(v ref)
|
||||
"syscall/js.finalizeRef": (sp) => {
|
||||
sp >>>= 0;
|
||||
const id = this.mem.getUint32(sp + 8, true);
|
||||
this._goRefCounts[id]--;
|
||||
if (this._goRefCounts[id] === 0) {
|
||||
const v = this._values[id];
|
||||
this._values[id] = null;
|
||||
this._ids.delete(v);
|
||||
this._idPool.push(id);
|
||||
}
|
||||
},
|
||||
|
||||
// func stringVal(value string) ref
|
||||
"syscall/js.stringVal": (sp) => {
|
||||
sp >>>= 0;
|
||||
storeValue(sp + 24, loadString(sp + 8));
|
||||
},
|
||||
|
||||
// func valueGet(v ref, p string) ref
|
||||
"syscall/js.valueGet": (sp) => {
|
||||
sp >>>= 0;
|
||||
const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 32, result);
|
||||
},
|
||||
|
||||
// func valueSet(v ref, p string, x ref)
|
||||
"syscall/js.valueSet": (sp) => {
|
||||
sp >>>= 0;
|
||||
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
|
||||
},
|
||||
|
||||
// func valueDelete(v ref, p string)
|
||||
"syscall/js.valueDelete": (sp) => {
|
||||
sp >>>= 0;
|
||||
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
|
||||
},
|
||||
|
||||
// func valueIndex(v ref, i int) ref
|
||||
"syscall/js.valueIndex": (sp) => {
|
||||
sp >>>= 0;
|
||||
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
|
||||
},
|
||||
|
||||
// valueSetIndex(v ref, i int, x ref)
|
||||
"syscall/js.valueSetIndex": (sp) => {
|
||||
sp >>>= 0;
|
||||
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
|
||||
},
|
||||
|
||||
// func valueCall(v ref, m string, args []ref) (ref, bool)
|
||||
"syscall/js.valueCall": (sp) => {
|
||||
sp >>>= 0;
|
||||
try {
|
||||
const v = loadValue(sp + 8);
|
||||
const m = Reflect.get(v, loadString(sp + 16));
|
||||
const args = loadSliceOfValues(sp + 32);
|
||||
const result = Reflect.apply(m, v, args);
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 56, result);
|
||||
this.mem.setUint8(sp + 64, 1);
|
||||
} catch (err) {
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 56, err);
|
||||
this.mem.setUint8(sp + 64, 0);
|
||||
}
|
||||
},
|
||||
|
||||
// func valueInvoke(v ref, args []ref) (ref, bool)
|
||||
"syscall/js.valueInvoke": (sp) => {
|
||||
sp >>>= 0;
|
||||
try {
|
||||
const v = loadValue(sp + 8);
|
||||
const args = loadSliceOfValues(sp + 16);
|
||||
const result = Reflect.apply(v, undefined, args);
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 40, result);
|
||||
this.mem.setUint8(sp + 48, 1);
|
||||
} catch (err) {
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 40, err);
|
||||
this.mem.setUint8(sp + 48, 0);
|
||||
}
|
||||
},
|
||||
|
||||
// func valueNew(v ref, args []ref) (ref, bool)
|
||||
"syscall/js.valueNew": (sp) => {
|
||||
sp >>>= 0;
|
||||
try {
|
||||
const v = loadValue(sp + 8);
|
||||
const args = loadSliceOfValues(sp + 16);
|
||||
const result = Reflect.construct(v, args);
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 40, result);
|
||||
this.mem.setUint8(sp + 48, 1);
|
||||
} catch (err) {
|
||||
sp = this._inst.exports.getsp() >>> 0; // see comment above
|
||||
storeValue(sp + 40, err);
|
||||
this.mem.setUint8(sp + 48, 0);
|
||||
}
|
||||
},
|
||||
|
||||
// func valueLength(v ref) int
|
||||
"syscall/js.valueLength": (sp) => {
|
||||
sp >>>= 0;
|
||||
setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
|
||||
},
|
||||
|
||||
// valuePrepareString(v ref) (ref, int)
|
||||
"syscall/js.valuePrepareString": (sp) => {
|
||||
sp >>>= 0;
|
||||
const str = encoder.encode(String(loadValue(sp + 8)));
|
||||
storeValue(sp + 16, str);
|
||||
setInt64(sp + 24, str.length);
|
||||
},
|
||||
|
||||
// valueLoadString(v ref, b []byte)
|
||||
"syscall/js.valueLoadString": (sp) => {
|
||||
sp >>>= 0;
|
||||
const str = loadValue(sp + 8);
|
||||
loadSlice(sp + 16).set(str);
|
||||
},
|
||||
|
||||
// func valueInstanceOf(v ref, t ref) bool
|
||||
"syscall/js.valueInstanceOf": (sp) => {
|
||||
sp >>>= 0;
|
||||
this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
|
||||
},
|
||||
|
||||
// func copyBytesToGo(dst []byte, src ref) (int, bool)
|
||||
"syscall/js.copyBytesToGo": (sp) => {
|
||||
sp >>>= 0;
|
||||
const dst = loadSlice(sp + 8);
|
||||
const src = loadValue(sp + 32);
|
||||
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
|
||||
this.mem.setUint8(sp + 48, 0);
|
||||
return;
|
||||
}
|
||||
const toCopy = src.subarray(0, dst.length);
|
||||
dst.set(toCopy);
|
||||
setInt64(sp + 40, toCopy.length);
|
||||
this.mem.setUint8(sp + 48, 1);
|
||||
},
|
||||
|
||||
// func copyBytesToJS(dst ref, src []byte) (int, bool)
|
||||
"syscall/js.copyBytesToJS": (sp) => {
|
||||
sp >>>= 0;
|
||||
const dst = loadValue(sp + 8);
|
||||
const src = loadSlice(sp + 16);
|
||||
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
|
||||
this.mem.setUint8(sp + 48, 0);
|
||||
return;
|
||||
}
|
||||
const toCopy = src.subarray(0, dst.length);
|
||||
dst.set(toCopy);
|
||||
setInt64(sp + 40, toCopy.length);
|
||||
this.mem.setUint8(sp + 48, 1);
|
||||
},
|
||||
|
||||
"debug": (value) => {
|
||||
console.log(value);
|
||||
},
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
async run(instance) {
|
||||
if (!(instance instanceof WebAssembly.Instance)) {
|
||||
throw new Error("Go.run: WebAssembly.Instance expected");
|
||||
}
|
||||
this._inst = instance;
|
||||
this.mem = new DataView(this._inst.exports.mem.buffer);
|
||||
this._values = [ // JS values that Go currently has references to, indexed by reference id
|
||||
NaN,
|
||||
0,
|
||||
null,
|
||||
true,
|
||||
false,
|
||||
globalThis,
|
||||
this,
|
||||
];
|
||||
this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
|
||||
this._ids = new Map([ // mapping from JS values to reference ids
|
||||
[0, 1],
|
||||
[null, 2],
|
||||
[true, 3],
|
||||
[false, 4],
|
||||
[globalThis, 5],
|
||||
[this, 6],
|
||||
]);
|
||||
this._idPool = []; // unused ids that have been garbage collected
|
||||
this.exited = false; // whether the Go program has exited
|
||||
|
||||
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
|
||||
let offset = 4096;
|
||||
|
||||
const strPtr = (str) => {
|
||||
const ptr = offset;
|
||||
const bytes = encoder.encode(str + "\0");
|
||||
new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
|
||||
offset += bytes.length;
|
||||
if (offset % 8 !== 0) {
|
||||
offset += 8 - (offset % 8);
|
||||
}
|
||||
return ptr;
|
||||
};
|
||||
|
||||
const argc = this.argv.length;
|
||||
|
||||
const argvPtrs = [];
|
||||
this.argv.forEach((arg) => {
|
||||
argvPtrs.push(strPtr(arg));
|
||||
});
|
||||
argvPtrs.push(0);
|
||||
|
||||
const keys = Object.keys(this.env).sort();
|
||||
keys.forEach((key) => {
|
||||
argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
|
||||
});
|
||||
argvPtrs.push(0);
|
||||
|
||||
const argv = offset;
|
||||
argvPtrs.forEach((ptr) => {
|
||||
this.mem.setUint32(offset, ptr, true);
|
||||
this.mem.setUint32(offset + 4, 0, true);
|
||||
offset += 8;
|
||||
});
|
||||
|
||||
// The linker guarantees global data starts from at least wasmMinDataAddr.
|
||||
// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.
|
||||
const wasmMinDataAddr = 4096 + 8192;
|
||||
if (offset >= wasmMinDataAddr) {
|
||||
throw new Error("total length of command line and environment variables exceeds limit");
|
||||
}
|
||||
|
||||
this._inst.exports.run(argc, argv);
|
||||
if (this.exited) {
|
||||
this._resolveExitPromise();
|
||||
}
|
||||
await this._exitPromise;
|
||||
}
|
||||
|
||||
_resume() {
|
||||
if (this.exited) {
|
||||
throw new Error("Go program has already exited");
|
||||
}
|
||||
this._inst.exports.resume();
|
||||
if (this.exited) {
|
||||
this._resolveExitPromise();
|
||||
}
|
||||
}
|
||||
|
||||
_makeFuncWrapper(id) {
|
||||
const go = this;
|
||||
return function () {
|
||||
const event = { id: id, this: this, args: arguments };
|
||||
go._pendingEvent = event;
|
||||
go._resume();
|
||||
return event.result;
|
||||
};
|
||||
}
|
||||
}
|
||||
})();
|
||||
Reference in New Issue
Block a user