From cd5832676aa34e693ebc0391cd0994f8e60c7120 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 5 Oct 2008 20:29:47 +0000
Subject: vector2f files

---
 src/math/vector2f.cc | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/math/vector2f.h  | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 152 insertions(+)
 create mode 100644 src/math/vector2f.cc
 create mode 100644 src/math/vector2f.h

(limited to 'src/math')

diff --git a/src/math/vector2f.cc b/src/math/vector2f.cc
new file mode 100644
index 0000000..c6f1504
--- /dev/null
+++ b/src/math/vector2f.cc
@@ -0,0 +1,78 @@
+/*
+   math/vector2f.cc
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#include <cstring>
+
+#include "math/vector2f.h"
+
+namespace math {
+
+Vector2f::Vector2f() : x(coord[0]), y(coord[1])
+{
+	clear();
+}
+
+Vector2f::Vector2f(Vector2f const &other) : x(coord[0]), y(coord[1])
+{
+	assign(other);
+}
+
+Vector2f::Vector2f(float const x, float const y) : x(coord[0]), y(coord[1])
+{
+	assign(x, y);
+}
+
+void Vector2f::clear()
+{
+	memset(coord, 0, sizeof(coord));
+}
+
+void Vector2f::assign(Vector2f const &other)
+{
+	memcpy(coord, other.coord, sizeof(coord));
+}
+
+void Vector2f::assign(float const x, float const y)
+{
+	coord[0] = x;
+	coord[1] = y;
+}
+
+Vector2f &Vector2f::operator=(Vector2f const &other)
+{
+	assign(other);
+	return (*this);
+}
+
+Vector2f &Vector2f::operator+=(Vector2f const &other)
+{
+	coord[0] += other.coord[0];
+	coord[1] += other.coord[1];
+	return (*this);
+}
+
+Vector2f &Vector2f::operator-=(Vector2f const &other)
+{
+	coord[0] -= other.coord[0];
+	coord[1] -= other.coord[1];
+	return (*this);
+}
+
+Vector2f Vector2f::operator-(Vector2f const &other) const
+{
+	Vector2f v(*this);
+	v -= other;
+	return v;
+}
+
+Vector2f Vector2f::operator+(Vector2f const &other) const
+{
+	Vector2f v(*this);
+	v += other;
+	return v;
+}
+
+}
diff --git a/src/math/vector2f.h b/src/math/vector2f.h
new file mode 100644
index 0000000..87f61a8
--- /dev/null
+++ b/src/math/vector2f.h
@@ -0,0 +1,74 @@
+/*
+   math/vector2f.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_MATH_VECTOR2F_H__
+#define __INCLUDED_MATH_VECTOR2F_H__
+
+#include <iostream>
+
+namespace math {
+
+/// a point or vector in 2D space
+class Vector2f {
+
+public:
+	/// default constructor
+	Vector2f();
+	/// assignment constructor
+	Vector2f(float const x, float const y);
+	/// copy constructor
+	Vector2f(Vector2f const &other);
+
+	/// assign (0,0)
+	void clear();
+
+	/// assignment operator
+	void assign(float const x, float const y);
+	/// assignment operator
+	void assign(Vector2f const &other);
+
+	/// assignment operator
+	Vector2f & operator=(Vector2f const &other);
+
+	/// vector subtraction
+	Vector2f & operator-=(Vector2f const &other);
+
+	/// vector sum
+	Vector2f & operator+=(Vector2f const &other);
+
+	/// vector subtraction
+	Vector2f operator-(Vector2f const &other) const;
+
+	/// vector sum
+	Vector2f operator+(Vector2f const &other) const;
+
+
+	/// array operator
+	inline float& operator[](const size_t index) {
+		return coord[index];
+	}
+
+	/// array operator
+	inline float operator[](const size_t index) const {
+		return coord[index];
+	}
+
+	/// a pointer to the internal data
+	inline float *ptr() const { return (float *) coord; }
+
+	/// x coordinate
+	float &x;
+
+	/// y coordinate
+	float &y;
+
+private:
+	float coord[2];
+};
+
+}
+#endif // __INCLUDED_MATH_VECTOR2F_H__
+
-- 
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