Inlined trivial wrappers, moved ranged random methods to Random, replaced M_PI with std::numbers::pi, unified DEGRAD/RAD_TO_GRAD as DEG_TO_RAD, fixed getInt/getDouble default fallback bug, and switched non-worldgen sin/cos to sinf/cosf.
Eliminates the custom arrayWithLength<T> wrapper and all typedefs, replacing with std::vector<T> directly.