using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TransportGame.Model
{
    public struct Rectangle
    {
        public float Left { get; set; }
        public float Top { get; set; }
        public float Right { get; set; }
        public float Bottom { get; set; }

        public Rectangle(float left, float top, float right, float bottom)
            : this()
        {
            Left = left;
            Top = top;
            Right = right;
            Bottom = bottom;

            if (left > right)
                throw new ArgumentException("Left must be smaller than right.");

            if (top > bottom)
                throw new ArgumentException("Top must be smaller than bottom.");
        }

        public float Width
        {
            get
            {
                return Right - Left;
            }
            set
            {
                Right = Left + value;
            }
        }

        public float Height
        {
            get
            {
                return Bottom - Top;
            }
            set
            {
                Bottom = Top + value;
            }
        }

        public bool Contains(float x, float y)
        {
            return x >= Left && x <= Right && y >= Top && y <= Bottom;
        }

        public bool Contains(Vector2 p)
        {
            return Contains(p.X, p.Y);
        }

        public static bool Intersects (Rectangle a, Rectangle b)
        {
            return !(b.Left > a.Right ||
                     b.Right < a.Left ||
                     b.Top > a.Bottom ||
                     b.Bottom < a.Top);
        }

        public override string ToString()
        {
            return string.Format("({0}, {1}, {2}, {3})", Left, Top, Right, Bottom);
        }
    }
}