Add a vec2 struct.

[ipdf/code.git] / src / real.h

diff --git a/src/real.h b/src/real.h
index 406cb8e..2be3fdd 100644 (file)
--- a/src/real.h
+++ b/src/real.h
@@ -82,7 +82,31 @@ namespace IPDF
                return r;
        }
        
                return r;
        }
        

+       struct Vec2
+       {
+               Real x;
+               Real y;
+               Vec2() : x(0), y(0) {}
+               Vec2(Real _x, Real _y) : x(_x), y(_y) {}

        
        

+               bool operator==(const Vec2& other) const { return (x == other.x) && (y == other.y); }
+               bool operator!=(const Vec2& other) const { return !(*this == other); }
+               
+               Vec2& operator=(const Vec2& other) { x = other.x; y = other.y; return *this; }
+               Vec2& operator+=(const Vec2& other) { x += other.x; y += other.y; return *this; }
+               Vec2& operator-=(const Vec2& other) { x -= other.x; y -= other.y; return *this; }
+               Vec2& operator*=(const Real& lambda) { x *= lambda; y *= lambda; return *this; }
+               Vec2& operator/=(const Real& lambda) { x /= lambda; y /= lambda; return *this; }
+
+               Vec2 operator+(const Vec2& other) const { return Vec2(x + other.x, y + other.y); }
+               Vec2 operator-(const Vec2& other) const { return Vec2(x - other.x, y - other.y); }
+               Vec2 operator*(const Real& lambda) const { return Vec2(x * lambda, y * lambda); }
+               Vec2 operator/(const Real& lambda) const { return Vec2(x / lambda, y / lambda); }
+
+               const Real SquareLength() const { return (x*x + y*y); }
+       
+       };
+

 
 }
 
 
 }