A simple fps camera with no clip movement
camera.process_input(
input_state.is_pressed(EKey::LEFT_CONTROL),
input_state.is_pressed(EKey::TAB),
input_state.is_pressed(EKey::w),
input_state.is_pressed(EKey::a),
input_state.is_pressed(EKey::s),
input_state.is_pressed(EKey::d),
input_state.is_pressed(EKey::SPACE),
input_state.is_pressed(EKey::LEFT_SHIFT),
delta_time);
}