From 31539f3af0c7beea865b29fdda0840c79f14710e Mon Sep 17 00:00:00 2001
From: Franklin Wei <me@fwei.tk>
Date: Thu, 7 Mar 2019 19:14:35 -0500
Subject: Import from fieldviz

---
 include/fml/vec3.h | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 include/fml/vec3.h

(limited to 'include/fml/vec3.h')

diff --git a/include/fml/vec3.h b/include/fml/vec3.h
new file mode 100644
index 0000000..3460c56
--- /dev/null
+++ b/include/fml/vec3.h
@@ -0,0 +1,39 @@
+#ifndef VEC3_H
+#define VEC3_H
+#include <iostream>
+
+#include "fml.h"
+
+namespace fml {
+    class vec3 {
+    public:
+        scalar v[3];
+    public:
+        vec3();
+        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*=(scalar scale);
+        const vec3 &operator/=(scalar scale);
+        const vec3 &operator+=(const vec3 &other);
+        const vec3 &operator-=(const vec3 &other);
+        scalar magnitude() const;
+        scalar magnitudeSquared() const;
+        vec3 normalize() 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);
+    std::istream &operator>>(std::istream &input, vec3 &v);
+}
+
+#endif
-- 
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