Contrails

across the map at configurable altitude and speed, and leave behind expanding, fading contrails — just like real high-altitude aircraft. At night (20:00–05:00), planes display blinking red, green, and white navigation lights for added realism.

Key Features:
Up to 3 concurrent flyovers with staggered batch spawning
8 airplane sprite variations and 16 puff textures for visual variety
Realistic trail behavior with sqrt-based diffusion, per-segment drift noise, and 60-second lifecycle
3D positional flyover audio with distance-based attenuation
Full in-game settings UI (LAlt+C) for adjusting altitude, speed, frequency, and max planes
Persistent settings saved to XML between sessions
Night navigation lights (port red, starboard green, tail blink, strobe)
Debug mode with console commands and HUD overlay
Supported Languages: English, Hungarian, German, French, Spanish, Polish, Italian, Dutch

Note: Singleplayer only for now. Multiplayer support is planned for a future update.