What this is
Nova is a 2D game engine for AutoIt 3.3.16.1. Rendering is Direct2D on a Direct3D 11 device, presented by DXGI, text by DirectWrite - reached through COM vtable addresses resolved at import time. No C runtime, no compiler, no DLL to build, no include beyond Nova.au3: you keep writing .au3.
You write two functions. The engine owns the window, the device and the timing.
Func Update($fDT) ; runs at a fixed 60 Hz
$fVy += 1400 * $fDT
$fY += $f