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0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_vec4f
0005 #define tools_vec4f
0006
0007 #include "vec4"
0008 #include "../S_STRING"
0009 #include <cmath>
0010
0011 namespace tools {
0012
0013 class vec4f : public vec4<float> {
0014   typedef vec4<float> parent;
0015 public:
0016   TOOLS_SCLASS(tools::vec4f) //for stype()
0017 public:
0018   vec4f():parent() {}
0019   vec4f(const float a_vec[4]):parent(a_vec) {}
0020   vec4f(const float& a0,const float& a1,const float& a2,const float& a3):parent(a0,a1,a2,a3){}
0021   virtual ~vec4f() {}
0022 public:
0023   vec4f(const vec4f& a_from):parent(a_from){}
0024   vec4f& operator=(const vec4f& a_from){
0025     parent::operator=(a_from);
0026     return *this;
0027   }
0028 public: //operators
0029   vec4f operator*(float a_v) const {
0030     return vec4f(m_data[0]*a_v,
0031                  m_data[1]*a_v,
0032                  m_data[2]*a_v,
0033                  m_data[3]*a_v);
0034   }
0035   vec4f operator+(const vec4f& a_v) const {
0036     return vec4f(m_data[0]+a_v.m_data[0],
0037                  m_data[1]+a_v.m_data[1],
0038                  m_data[2]+a_v.m_data[2],
0039                  m_data[3]+a_v.m_data[3]);
0040   }
0041   vec4f operator-(const vec4f& a_v) const {
0042     return vec4f(m_data[0]-a_v.m_data[0],
0043                  m_data[1]-a_v.m_data[1],
0044                  m_data[2]-a_v.m_data[2],
0045                  m_data[3]-a_v.m_data[3]);
0046   }
0047   vec4f& operator+=(const vec4f& a_v) {
0048     m_data[0] += a_v.m_data[0];
0049     m_data[1] += a_v.m_data[1];
0050     m_data[2] += a_v.m_data[2];
0051     m_data[3] += a_v.m_data[3];
0052     return *this;
0053   }
0054   vec4f& operator*=(float a_v) {
0055     m_data[0] *= a_v;
0056     m_data[1] *= a_v;
0057     m_data[2] *= a_v;
0058     m_data[3] *= a_v;
0059     return *this;
0060   }
0061   vec4f operator-() const {
0062     return vec4f(-m_data[0],-m_data[1],-m_data[2],-m_data[3]);
0063   }
0064 public:
0065   float length() const {
0066     return float(::sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]+m_data[2]*m_data[2]+m_data[3]*m_data[3]));
0067   }
0068   float normalize() {
0069     float norme = length();
0070     if(!norme) return 0;
0071     divide(norme);
0072     return norme;
0073   }
0074 };
0075
0076 }
0077
0078 #include <vector>
0079
0080 namespace tools {
0081
0082 #ifndef SWIG
0083 //for sf, mf :
0084 inline bool set_from_vec(vec4f& a_v,const std::vector<float>& a_sv) {
0085   if(a_sv.size()!=4) return false;
0086   a_v[0] = a_sv[0];
0087   a_v[1] = a_sv[1];
0088   a_v[2] = a_sv[2];
0089   a_v[3] = a_sv[3];
0090   return true;
0091 }
0092 #endif
0093
0094 }
0095
0096 #endif