1 files changed, 16 insertions, 12 deletions

diff --git a/vec3.h b/vec3.h
index abfc6c3..cb51f23 100644
--- a/vec3.h
+++ b/vec3.h
@@ -1,30 +1,34 @@
 #ifndef VEC3_H
 #define VEC3_H
 #include <iostream>
+
+typedef float scalar;
+
 class vec3 {
     public:
-        double v[3];
+        scalar v[3];
     public:
         vec3();
-        vec3(double x);
-        vec3(double x, double y, double z);
-        double &operator[](int index);
-        double operator[](int index) const;
-        vec3 operator*(double scale) const;
-        vec3 operator/(double scale) const;
+        vec3(scalar x);
+        vec3(scalar x, scalar y, scalar z);
+        scalar &operator[](int index);
+        scalar operator[](int index) const;
+        vec3 operator*(scalar scale) const;
+        vec3 operator/(scalar scale) const;
         vec3 operator+(const vec3 &other) const;
         vec3 operator-(const vec3 &other) const;
         vec3 operator-() const;
-        const vec3 &operator*=(double scale);
-        const vec3 &operator/=(double scale);
+        const vec3 &operator*=(scalar scale);
+        const vec3 &operator/=(scalar scale);
         const vec3 &operator+=(const vec3 &other);
         const vec3 &operator-=(const vec3 &other);
-        double magnitude() const;
-        double magnitudeSquared() const;
+        scalar magnitude() const;
+        scalar magnitudeSquared() const;
         vec3 normalize() const;
-        double dot(const vec3 &other) const;
+        scalar dot(const vec3 &other) const;
         vec3 cross(const vec3 &other) const;
 };
+vec3 operator*(scalar scale, const vec3 &v);
 
 std::ostream &operator<<(std::ostream &output, const vec3 &v);
 #endif