/* * Copyright (C) 2023 Daniele Lacamera * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see . */ #include #include #ifndef TRIG_H #define TRIG_H extern const float PreCalcCos[], PreCalcSin[]; extern const short PreCalcAtan[81][81]; static inline float psin(int x) { int a = x + 180; if (a >= 360) a-=360; return (PreCalcSin[a]); } static inline float pcos(int x) { int a = x + 180; if (a >= 360) a-=360; return (PreCalcCos[a]); } static inline int16_t p_atan2(int x, int y) { return PreCalcAtan[x,y]; } #endif