Initial commit: Retro 90s flight simulator MVP

Loading screen, main menu, 3D flight sim with CRT post-processing, procedural terrain, airport with buildings, low-poly aircraft, flight physics, HUD instruments, and sound. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-05 10:43:22 +00:00
commit 76bad46d09
13 changed files with 2965 additions and 0 deletions
@@ -0,0 +1,77 @@
+export class Sound {
+  constructor() {
+    this.ctx = null;
+    this.engineOsc = null;
+    this.engineGain = null;
+    this.initialized = false;
+  }
+
+  init() {
+    if (this.initialized) return;
+    try {
+      this.ctx = new (window.AudioContext || window.webkitAudioContext)();
+      this.engineOsc = this.ctx.createOscillator();
+      this.engineOsc.type = 'sawtooth';
+      this.engineGain = this.ctx.createGain();
+      this.engineGain.gain.value = 0;
+
+      // Low-pass filter for muffled engine sound
+      this.engineFilter = this.ctx.createBiquadFilter();
+      this.engineFilter.type = 'lowpass';
+      this.engineFilter.frequency.value = 300;
+
+      this.engineOsc.connect(this.engineFilter);
+      this.engineFilter.connect(this.engineGain);
+      this.engineGain.connect(this.ctx.destination);
+      this.engineOsc.start();
+      this.initialized = true;
+    } catch {
+      // Audio not available, silently fail
+    }
+  }
+
+  update(throttle) {
+    if (!this.initialized || !this.engineOsc) return;
+    const baseFreq = 60;
+    const maxFreq = 180;
+    this.engineOsc.frequency.value = baseFreq + throttle * (maxFreq - baseFreq);
+    this.engineGain.gain.value = Math.min(throttle * 0.08, 0.08);
+    this.engineFilter.frequency.value = 200 + throttle * 200;
+  }
+
+  beep(frequency = 800, duration = 80) {
+    if (!this.initialized) return;
+    try {
+      const osc = this.ctx.createOscillator();
+      const gain = this.ctx.createGain();
+      osc.type = 'square';
+      osc.frequency.value = frequency;
+      gain.gain.value = 0.05;
+      osc.connect(gain);
+      gain.connect(this.ctx.destination);
+      osc.start();
+      osc.stop(this.ctx.currentTime + duration / 1000);
+    } catch {
+      // Ignore audio errors
+    }
+  }
+
+  takeoffSound() {
+    if (!this.initialized) return;
+    try {
+      const osc = this.ctx.createOscillator();
+      const gain = this.ctx.createGain();
+      osc.type = 'triangle';
+      osc.frequency.value = 400;
+      osc.frequency.linearRampToValueAtTime(800, this.ctx.currentTime + 0.3);
+      gain.gain.value = 0.08;
+      gain.gain.linearRampToValueAtTime(0, this.ctx.currentTime + 0.5);
+      osc.connect(gain);
+      gain.connect(this.ctx.destination);
+      osc.start();
+      osc.stop(this.ctx.currentTime + 0.5);
+    } catch {
+      // Ignore
+    }
+  }
+}