/* * vector3.cpp * Copyright (C) Andrew Tridgell 2012 * * This file is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This file 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see <http://www.gnu.org/licenses/>. */ #pragma GCC optimize("O3") #include "AP_Math.h" template <typename T> float Vector2<T>::length(void) const { return norm(x, y); } // dot product template <typename T> T Vector2<T>::operator *(const Vector2<T> &v) const { return x*v.x + y*v.y; } // cross product template <typename T> T Vector2<T>::operator %(const Vector2<T> &v) const { return x*v.y - y*v.x; } template <typename T> Vector2<T> &Vector2<T>::operator *=(const T num) { x*=num; y*=num; return *this; } template <typename T> Vector2<T> &Vector2<T>::operator /=(const T num) { x /= num; y /= num; return *this; } template <typename T> Vector2<T> &Vector2<T>::operator -=(const Vector2<T> &v) { x -= v.x; y -= v.y; return *this; } template <typename T> bool Vector2<T>::is_nan(void) const { return isnan(x) || isnan(y); } template <typename T> bool Vector2<T>::is_inf(void) const { return isinf(x) || isinf(y); } template <typename T> Vector2<T> &Vector2<T>::operator +=(const Vector2<T> &v) { x+=v.x; y+=v.y; return *this; } template <typename T> Vector2<T> Vector2<T>::operator /(const T num) const { return Vector2<T>(x/num, y/num); } template <typename T> Vector2<T> Vector2<T>::operator *(const T num) const { return Vector2<T>(x*num, y*num); } template <typename T> Vector2<T> Vector2<T>::operator -(const Vector2<T> &v) const { return Vector2<T>(x-v.x, y-v.y); } template <typename T> Vector2<T> Vector2<T>::operator +(const Vector2<T> &v) const { return Vector2<T>(x+v.x, y+v.y); } template <typename T> Vector2<T> Vector2<T>::operator -(void) const { return Vector2<T>(-x,-y); } template <typename T> bool Vector2<T>::operator ==(const Vector2<T> &v) const { return (is_equal(x,v.x) && is_equal(y,v.y)); } template <typename T> bool Vector2<T>::operator !=(const Vector2<T> &v) const { return (!is_equal(x,v.x) || !is_equal(y,v.y)); } template <typename T> float Vector2<T>::angle(const Vector2<T> &v2) const { float len = this->length() * v2.length(); if (len <= 0) { return 0.0f; } float cosv = ((*this)*v2) / len; if (cosv >= 1) { return 0.0f; } if (cosv <= -1) { return M_PI; } return acosf(cosv); } // only define for float template float Vector2<float>::length(void) const; template float Vector2<float>::operator *(const Vector2<float> &v) const; template float Vector2<float>::operator %(const Vector2<float> &v) const; template Vector2<float> &Vector2<float>::operator *=(const float num); template Vector2<float> &Vector2<float>::operator /=(const float num); template Vector2<float> &Vector2<float>::operator -=(const Vector2<float> &v); template Vector2<float> &Vector2<float>::operator +=(const Vector2<float> &v); template Vector2<float> Vector2<float>::operator /(const float num) const; template Vector2<float> Vector2<float>::operator *(const float num) const; template Vector2<float> Vector2<float>::operator +(const Vector2<float> &v) const; template Vector2<float> Vector2<float>::operator -(const Vector2<float> &v) const; template Vector2<float> Vector2<float>::operator -(void) const; template bool Vector2<float>::operator ==(const Vector2<float> &v) const; template bool Vector2<float>::operator !=(const Vector2<float> &v) const; template bool Vector2<float>::is_nan(void) const; template bool Vector2<float>::is_inf(void) const; template float Vector2<float>::angle(const Vector2<float> &v) const; // define for int template bool Vector2<int>::operator ==(const Vector2<int> &v) const;