Aegisub/aegisub/src/vector2d.h

// Copyright (c) 2007, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
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//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of the Aegisub Group nor the names of its contributors
//     may be used to endorse or promote products derived from this software
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// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//


#pragma once


//////////////////////////////
// Vector2D class declaration
class Vector2D {
public:
	float x,y;

	Vector2D ();
	Vector2D (float _x,float _y);
	Vector2D (const Vector2D &vec);

	void operator = (const Vector2D param);
	bool operator == (const Vector2D param) const;
	bool operator != (const Vector2D param) const;

	Vector2D operator - () const;
	Vector2D operator + (const Vector2D param) const;
	Vector2D operator - (const Vector2D param) const;
	Vector2D operator * (float param) const;
	Vector2D operator / (float param) const;

	Vector2D operator += (const Vector2D param);
	Vector2D operator -= (const Vector2D param);
	Vector2D operator *= (float param);
	Vector2D operator /= (float param);

	Vector2D Unit () const;
	float Cross (const Vector2D param) const;
	float Dot (const Vector2D param) const;

	float Len () const;
	float Length () const { return Len(); }
	float SquareLen () const;
	float SquareLength () const { return SquareLen(); }
};


////////////////////
// Global operators
Vector2D operator * (float f,const Vector2D &v);
Vector2D operator / (float f,const Vector2D &v);