File structure

Directory	Description
McZapkie/	Train Physics Engine
gl/	OpenGL Abstraction Layer
network/	Multiplayer Support
launcher/	Scenario/Vehicle Selection (built in starter)
widgets/	HUD Elements
vr/	Virtual Reality Support
Console/	Hardware I/O
application/	Core simulation loop, time, environment, state serializer, sounds
scene/	Scene graph, scene nodes, scene editor, utilities
rendering/	All renderers (OpenGL legacy and full), geometry banks, particles, lights, frustum
audio/	Sound, audio, and audio renderer
environment/	Sky, sun, moon, stars, skydome
application/	Application modes, UI layers/panels, driver/editor/scenario modes
input/	Keyboard, mouse, gamepad, command, messaging, ZMQ input
scripting/	Lua, Python, ladder logic, screen viewer
model/	3D models, materials, textures, resource manager
utilities/	Logging, timing, parsing, math, globals, crash reporter
world/	Tracks, traction, events, memory cells, stations
vehicle/	Train, dynamic objects, driver, gauges, camera
entitysystem/	EnTT wrapper, components, helpers