#region Using Statements
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Storage;
#endregion

namespace pong
{
    class ball
    {
        public int ballX;
        public int ballY;

        private int trajX;
        private int trajY;

        public void checkWalls()
        {
            if (ballX < 1)
            {
                trajX = trajX + 2;
            }
            if (ballX > 775)
            {
                trajX = trajX - 2;
            }
            ballX = ballX + trajX;

            if (ballY < 575)
            {
                trajY = trajY + 3;
            }
            if (ballY > 10)
            {
                trajY = trajY - 3;
            }
            ballY = ballY + trajY;
        }

        public void checkPaddles(int playerPos)
        {
            if (ballX > playerPos && ballX < playerPos + 139 && ballY < 500)
            {
                trajY = trajY - 2;
            }
        }
    }
}