Gabriele Cosmo
113 lines
2.4 KiB
Plaintext
113 lines
2.4 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_vec2f
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#define tools_vec2f
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#include "vec2"
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#include "../S_STRING"
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#include <cmath>
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namespace tools {
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class vec2f : public vec2<float> {
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typedef vec2<float> parent;
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public:
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TOOLS_SCLASS(tools::vec2f) //for stype()
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public:
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vec2f():parent(){}
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vec2f(const float a_vec[2]):parent(a_vec){}
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vec2f(float a0,float a1):parent(a0,a1){}
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virtual ~vec2f() {}
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public:
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vec2f(const vec2f& a_from): parent(a_from){}
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vec2f& operator=(const vec2f& a_from){
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parent::operator=(a_from);
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return *this;
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}
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vec2f(const parent& a_from):parent(a_from){}
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public: //operators
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vec2f operator*(float a_v) const {
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return vec2f(m_data[0]*a_v,
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m_data[1]*a_v);
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}
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vec2f operator+(const vec2f& a_v) const {
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return vec2f(m_data[0]+a_v.m_data[0],
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m_data[1]+a_v.m_data[1]);
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}
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vec2f operator-(const vec2f& a_v) const {
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return vec2f(m_data[0]-a_v.m_data[0],
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m_data[1]-a_v.m_data[1]);
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}
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vec2f& operator+=(const vec2f& a_v) {
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m_data[0] += a_v.m_data[0];
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m_data[1] += a_v.m_data[1];
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return *this;
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}
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vec2f& operator*=(float a_v) {
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m_data[0] *= a_v;
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m_data[1] *= a_v;
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return *this;
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}
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vec2f operator-() const {
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return vec2f(-m_data[0],-m_data[1]);
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}
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public:
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#define TOOLS_VEC2F_MORE_PREC
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#ifdef TOOLS_VEC2F_MORE_PREC
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float length() const {
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return float(::sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]));
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}
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float normalize() {
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float norme = length();
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if(!norme) return 0;
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divide(norme);
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return norme;
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}
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#else
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float length() const {return parent::length(::sqrtf);}
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float normalize() {return parent::normalize(::sqrtf);}
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#endif
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public: //iv2sg
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bool equals(const vec2f& a_v,const float a_epsil) const {
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//if(a_epsil<0.0f))
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float d0 = m_data[0]-a_v.m_data[0];
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float d1 = m_data[1]-a_v.m_data[1];
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return ((d0*d0+d1*d1)<=a_epsil);
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}
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void negate() {
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m_data[0] = -m_data[0];
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m_data[1] = -m_data[1];
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}
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private:static void check_instantiation() {vec2f v(0,0);v.set_value(1,1);}
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};
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inline vec2f operator*(float a_f,const vec2f& a_v) {
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vec2f res(a_v);
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res *= a_f;
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return res;
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}
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}
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#include <vector>
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namespace tools {
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#ifndef SWIG
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//for sf, mf :
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inline bool set_from_vec(vec2f& a_v,const std::vector<float>& a_sv) {
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if(a_sv.size()!=2) return false;
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a_v[0] = a_sv[0];
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a_v[1] = a_sv[1];
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return true;
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}
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#endif
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}
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#endif
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