include <ofxVec4f.h>
  
  ofxVec4f::ofxVec4f( float _x,
                    float _y,
                    float _z,
                    float _w )
  {
          x = _x;
          y = _y;
          z = _z;
          w = _w;
  }
  
  // Getters and Setters.
  //
  //
  void ofxVec4f::set( float _x, float _y, float _z, float _w ) {
          x = _x;
          y = _y;
          z = _z;
          w = _w;
  }
  
  void ofxVec4f::set( const ofxVec4f& vec ) {
          x = vec.x;
          y = vec.y;
          z = vec.z;
          w = vec.w;
  }
  
  float& ofxVec4f::operator[]( const int& i ) {
          switch(i) {
                  case 0:  return x;
                  case 1:  return y;
                  case 2:  return z;
                  case 3:  return w;
                  default: return x;
          }
  }
  
  // Check similarity/equality.
  //
  //
  bool ofxVec4f::operator==( const ofxVec4f& vec ) {
          return (x == vec.x) && (y == vec.y) && (z == vec.z) && (w == vec.w);
  }
  
  bool ofxVec4f::operator!=( const ofxVec4f& vec ) {
          return (x != vec.x) || (y != vec.y) || (z != vec.z) || (w != vec.w);
  }
  
  bool ofxVec4f::match( const ofxVec4f& vec, float tollerance) {
          return (fabs(x - vec.x) < tollerance)
                  && (fabs(y - vec.y) < tollerance)
                  && (fabs(z - vec.z) < tollerance)
                  && (fabs(w - vec.w) < tollerance);
  }
  
  // Additions and Subtractions.
  //
  //
  ofxVec4f ofxVec4f::operator+( const ofxVec4f& vec ) const {
          return ofxVec4f( x+vec.x, y+vec.y, z+vec.z, w+vec.w);
  }
  
  ofxVec4f& ofxVec4f::operator+=( const ofxVec4f& vec ) {
          x += vec.x;
          y += vec.y;
          z += vec.z;
          w += vec.w;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator-( const float f ) const {
          return ofxVec4f( x-f, y-f, z-f, w-f );
  }
  
  ofxVec4f& ofxVec4f::operator-=( const float f ) {
          x -= f;
          y -= f;
          z -= f;
          w -= f;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator-( const ofxVec4f& vec ) const {
          return ofxVec4f( x-vec.x, y-vec.y, z-vec.z, w-vec.w );
  }
  
  ofxVec4f& ofxVec4f::operator-=( const ofxVec4f& vec ) {
          x -= vec.x;
          y -= vec.y;
          z -= vec.z;
          w -= vec.w;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator+( const float f ) const {
          return ofxVec4f( x+f, y+f, z+f, w+f );
  }
  
  ofxVec4f& ofxVec4f::operator+=( const float f ) {
          x += f;
          y += f;
          z += f;
          w += f;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator-() const {
          return ofxVec4f( -x, -y, -z, -w );
  }
  
  // Scalings
  //
  //
  ofxVec4f ofxVec4f::operator*( const ofxVec4f& vec ) const {
          return ofxVec4f( x*vec.x, y*vec.y, z*vec.z, w*vec.w );
  }
  
  ofxVec4f& ofxVec4f::operator*=( const ofxVec4f& vec ) {
          x *= vec.x;
          y *= vec.y;
          z *= vec.z;
          w *= vec.w;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator*( const float f ) const {
          return ofxVec4f( x*f, y*f, z*f, w*f );
  }
  
  ofxVec4f& ofxVec4f::operator*=( const float f ) {
          x *= f;
          y *= f;
          z *= f;
          w *= f;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator/( const ofxVec4f& vec ) const {
          return ofxVec4f( vec.x!=0 ? x/vec.x : x , vec.y!=0 ? y/vec.y : y, vec.z!=0 ? z/vec.z : z, vec.w!=0 ? w/vec.w : w  );
  }
  
  ofxVec4f& ofxVec4f::operator/=( const ofxVec4f& vec ) {
          vec.x!=0 ? x/=vec.x : x;
          vec.y!=0 ? y/=vec.y : y;
          vec.z!=0 ? z/=vec.z : z;
          vec.w!=0 ? w/=vec.w : w;
          return *this;
  }
  
  ofxVec4f ofxVec4f::operator/( const float f ) const {
          if(f == 0) return ofxVec4f(x, y, z, w);
  
          return ofxVec4f( x/f, y/f, z/f, w/f );
  }
  
  ofxVec4f& ofxVec4f::operator/=( const float f ) {
          if(f == 0)return *this;
  
          x /= f;
          y /= f;
          z /= f;
          w /= f;
          return *this;
  }
  
  ofxVec4f ofxVec4f::rescaled( const float length ) const {
          return getScaled(length);
  }
  
  ofxVec4f ofxVec4f::getScaled( const float length ) const {
          float l = (float)sqrt(x*x + y*y + z*z + w*w);
          if( l > 0 )
                  return ofxVec4f( (x/l)*length, (y/l)*length,
                                                  (z/l)*length, (w/l)*length );
          else
                  return ofxVec4f();
  }
  
  ofxVec4f& ofxVec4f::rescale( const float length ) {
          return scale(length);
  }
  
  ofxVec4f& ofxVec4f::scale( const float length ) {
          float l = (float)sqrt(x*x + y*y + z*z + w*w);
          if (l > 0) {
                  x = (x/l)*length;
                  y = (y/l)*length;
                  z = (z/l)*length;
                  w = (w/l)*length;
          }
          return *this;
  }
  
  // Normalization
  //
  //
  ofxVec4f ofxVec4f::normalized() const {
          return getNormalized();
  }
  
  ofxVec4f ofxVec4f::getNormalized() const {
          float length = (float)sqrt(x*x + y*y + z*z + w*w);
          if( length > 0 ) {
                  return ofxVec4f( x/length, y/length, z/length, w/length );
          } else {
                  return ofxVec4f();
          }
  }
  
  ofxVec4f& ofxVec4f::normalize() {
          float lenght = (float)sqrt(x*x + y*y + z*z + w*w);
          if( lenght > 0 ) {
                  x /= lenght;
                  y /= lenght;
                  z /= lenght;
                  w /= lenght;
          }
          return *this;
  }
  
  // Limit length.
  //
  //
  ofxVec4f ofxVec4f::limited(float max) const {
          return getLimited(max);
  }
  
  ofxVec4f ofxVec4f::getLimited(float max) const {
          float length = (float)sqrt(x*x + y*y + z*z + w*w);
          if( length > max && length > 0 ) {
                  return ofxVec4f( (x/length)*max, (y/length)*max,
                                                  (z/length)*max, (w/length)*max );
          } else {
                  return ofxVec4f( x, y, z, w );
          }
  }
  
  ofxVec4f& ofxVec4f::limit(float max) {
          float length = (float)sqrt(x*x + y*y + z*z + w*w);
          if( length > max && length > 0 ) {
                  x = (x/length)*max;
                  y = (y/length)*max;
                  z = (z/length)*max;
                  w = (w/length)*max;
          }
          return *this;
  }
  
  // Length
  //
  //
  float ofxVec4f::length() const {
          return (float)sqrt( x*x + y*y + z*z + w*w );
  }
  
  float ofxVec4f::lengthSquared() const {
          return squareLength();
  }
  
  float ofxVec4f::squareLength() const {
          return (float)(x*x + y*y + z*z + w*w);
  }