[Unity] C#のSystem.Drawing.Point構造体を使用するためのもの。Unity2017.2以降はUnityAPIのVector2Intを使えばいい

Point.cs

[System.Serializable]
public struct Point
{

	public int x;
	public int y;


	#region operators

	public static Point operator+ (Point a, Point b)
	{
		return new Point (a.x + b.x, a.y + b.y);
	}

	public static Point operator- (Point a, Point b)
	{
		return new Point (a.x - b.x, a.y - b.y);
	}

	public static Point operator* (Point a, int b)
	{
		return new Point (a.x * b, a.y * b);
	}

	public static Point operator/ (Point a, int b)
	{
		return new Point (a.x / b, a.y / b);
	}

	public static Point operator% (Point a, int b)
	{
		return new Point (a.x % b, a.y % b);
	}

	public static bool operator== (Point a, Point b)
	{
		return (a.x == b.x && a.y == b.y);
	}

	public static bool operator!= (Point a, Point b)
	{
		return (a.x != b.x || a.y != b.y);
	}

	#endregion

	#region standard overrides

	public override bool Equals (object obj)
	{
		if (obj is Point) {
			Point p = (Point)obj;
			return p == this;
		} else {
			return false;
		}
	}

	public override int GetHashCode ()
	{
		return base.GetHashCode ();
	}

	public override string ToString ()
	{
		return string.Format ("({0:0},{1:0})", this.x, this.y);
	}

	#endregion

	#region constructors

	public Point (int x, int y)
	{
		this.x = x;
		this.y = y;
	}

	#endregion


	#region static propaties

	public static Point zero {
		get {
			return new Point (0, 0);
		}
	}

	public static Point one {
		get {
			return new Point (1, 1);
		}
	}

	public static Point right {
		get {
			return new Point (1, 0);
		}
	}

	public static Point up {
		get {
			return new Point (0, 1);
		}
	}

	#endregion

	#region propaties

	public bool IsEmpty {
		get {
			return (this.x == 0 && this.y == 0);
		}
	}

	#endregion

	#region public methods

	public void Set (int x, int y)
	{
		this.x = x;
		this.y = y;
	}

	public void Offset (Point p)
	{
		this += p;
	}

	public void Offset (int x, int y)
	{
		this.x += x;
		this.y += y;
	}

	#endregion
}