From 4d31aac85e7d5c911980831cd0aa297973ff88c4 Mon Sep 17 00:00:00 2001
From: Aloshi <allofquist@yahoo.com>
Date: Sat, 1 Jun 2013 16:47:05 -0500
Subject: [PATCH] Added Vector2 class.

---
 CMakeLists.txt |  2 +-
 src/Vector2.h  | 97 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 src/Vector2.h

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ba96dd160..b28ab3909 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -127,6 +127,7 @@ set(ES_HEADERS
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Renderer.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Sound.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/SystemData.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/Vector2.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/VolumeControl.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Window.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/XMLReader.h
@@ -171,7 +172,6 @@ set(ES_SOURCES
     ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiGameList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiImage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiInputConfig.cpp
-#    ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiMenu.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/components/GuiTheme.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/pugiXML/pugixml.cpp
diff --git a/src/Vector2.h b/src/Vector2.h
new file mode 100644
index 000000000..925115eef
--- /dev/null
+++ b/src/Vector2.h
@@ -0,0 +1,97 @@
+#ifndef _VECTOR2_H_
+#define _VECTOR2_H_
+
+//Taken from the SFML Vector2 class:
+//https://github.com/LaurentGomila/SFML/blob/master/include/SFML/System/Vector2.hpp
+//https://github.com/LaurentGomila/SFML/blob/master/include/SFML/System/Vector2.inl
+
+template <typename T>
+class Vector2
+{
+public:
+	Vector2() : x(0), y(0)
+	{
+	}
+
+	Vector2(T X, T Y) : x(X), y(Y)
+	{
+	}
+
+	//convert between vector types
+	template <typename U>
+    explicit Vector2(const Vector2<U>& vector) : x(static_cast<T>(vector.x)), y(static_cast<T>(vector.y))
+	{
+	}
+	
+	T x;
+	T y;
+};
+
+
+template <typename T>
+Vector2<T> operator -(const Vector2<T>& right)
+{
+	return Vector2<T>(-right.x, -right.y);
+}
+
+template <typename T>
+Vector2<T>& operator +=(Vector2<T>& left, const Vector2<T>& right)
+{
+	left.x += right.x;
+	left.y += right.y;
+
+	return left;
+}
+
+template <typename T>
+Vector2<T>& operator -=(Vector2<T>& left, const Vector2<T>& right)
+{
+	left.x -= right.x;
+	left.y -= right.y;
+
+	return left;
+}
+
+template <typename T>
+Vector2<T> operator +(const Vector2<T>& left, const Vector2<T>& right)
+{
+	return Vector2<T>(left.x + right.x, left.y + right.y);
+}
+
+template <typename T>
+Vector2<T> operator -(const Vector2<T>& left, const Vector2<T>& right)
+{
+	return Vector2<T>(left.x - right.x, left.y - right.y);
+}
+
+template <typename T>
+Vector2<T> operator *(const Vector2<T>& left, T right)
+{
+	return Vector2<T>(left.x * right, left.y * right);
+}
+
+template <typename T>
+Vector2<T>& operator *=(Vector2<T>& left, T right)
+{
+	left.x *= right;
+	left.y *= right;
+
+	return left;
+}
+
+template <typename T>
+bool operator ==(const Vector2<T>& left, const Vector2<T>& right)
+{
+	return (left.x == right.x && left.y == right.y);
+}
+
+template <typename T>
+bool operator !=(const Vector2<T>& left, const Vector2<T>& right)
+{
+	return (left.x != right.x) || (left.y != right.y);
+}
+
+typedef Vector2<int> Vector2i;
+typedef Vector2<float> Vector2f;
+
+#endif