Import from fieldviz

4 files changed, 115 insertions, 0 deletions

diff --git a/include/fml/fml.h b/include/fml/fml.h
new file mode 100644
index 0000000..046db5a
--- /dev/null
+++ b/include/fml/fml.h
@@ -0,0 +1,10 @@
+/*
+ * libfml: Frank's Math Library
+ *
+ * Copyright (C) 2019 Franklin Wei
+ */
+
+typedef float scalar;
+
+#include "quat.h"
+#include "vec3.h"
diff --git a/include/fml/quat.h b/include/fml/quat.h
new file mode 100644
index 0000000..14c966e
--- /dev/null
+++ b/include/fml/quat.h
@@ -0,0 +1,28 @@
+#ifndef QUAT_H
+#define QUAT_H
+
+#include "fml.h"
+#include <iostream>
+
+namespace fml {
+    class quat {
+    public:
+        scalar w, x, y, z;
+    public:
+        quat(scalar w, scalar x, scalar y, scalar z);
+        quat(scalar x, scalar y, scalar z);
+        quat(scalar w, vec3 vec);
+        quat(vec3 vec);
+        quat();
+
+        operator vec3();
+
+        quat conjugate() const;
+
+        static quat from_angleaxis(scalar angle, vec3 axis);
+    };
+
+    quat operator*(const quat &, const quat &);
+    std::ostream &operator<<(std::ostream &os, const quat &);
+}
+#endif
diff --git a/include/fml/vec2.h b/include/fml/vec2.h
new file mode 100644
index 0000000..166b99c
--- /dev/null
+++ b/include/fml/vec2.h
@@ -0,0 +1,38 @@
+#ifndef VEC2_H
+#define VEC2_H
+#include <iostream>
+
+#include "fml.h"
+
+namespace fml {
+    class vec2 {
+    public:
+        scalar v[2];
+    public:
+        vec2();
+        vec2(scalar x);
+        vec2(scalar x, scalar y);
+        scalar &operator[](int index);
+        scalar operator[](int index) const;
+        vec2 operator*(scalar scale) const;
+        vec2 operator/(scalar scale) const;
+        vec2 operator+(const vec2 &other) const;
+        vec2 operator-(const vec2 &other) const;
+        vec2 operator-() const;
+        const vec2 &operator*=(scalar scale);
+        const vec2 &operator/=(scalar scale);
+        const vec2 &operator+=(const vec2 &other);
+        const vec2 &operator-=(const vec2 &other);
+        scalar magnitude() const;
+        scalar magnitudeSquared() const;
+        vec2 normalize() const;
+        scalar dot(const vec2 &other) const;
+    };
+
+    vec2 operator*(scalar scale, const vec2 &v);
+
+    std::ostream &operator<<(std::ostream &output, const vec2 &v);
+    std::istream &operator>>(std::istream &input, vec3 &v);
+}
+
+#endif
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