CSRectにメソッド追加

CSRect.cs

using UnityEngine;
using System.Collections;

public static class CSRect
{
    public static Rect OffsetXRect(this Rect rect, float x)
    {
        Rect newRect = rect;
        newRect.x = rect.x + x;
        return newRect;
    }

    public static Rect OffsetYRect(this Rect rect, float y)
    {
        Rect newRect = rect;
        newRect.y = rect.y + y;
        return newRect;
    }

    public static Rect ResizeWidthRect(this Rect rect, float width)
    {
        Rect newRect = rect;
        newRect.width = rect.width + width;
        return newRect;
    }

    public static Rect ResizeHeightRect(this Rect rect, float height)
    {
        Rect newRect = rect;
        newRect.width = rect.height + height;
        return newRect;
    }
}