Added M_HALF_PI M_TWO_PI
Added M_HALF_PI M_TWO_PI

sosolimited/Cinder,sosolimited/Cinder,morbozoo/sonyHeadphones,morbozoo/sonyHeadphones,2666hz/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,sosolimited/Cinder,2666hz/Cinder,2666hz/Cinder,2666hz/Cinder,morbozoo/sonyHeadphones