pusi kurac

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Bilijar
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnPocetak_Click(object sender, EventArgs e)
        {
            timer1.Stop();

            pictureBoxKugla.Image = Properties.Resources.bilijar_stop;

            int sirina = panelMartinela.Width;
            int visina = panelMartinela.Height;

            int cx = sirina / 5;
            int cy = visina / 2;

            pictureBoxKugla.Left = cx - pictureBoxKugla.Width / 2;
            pictureBoxKugla.Top = cy - pictureBoxKugla.Height / 2;
        }

        private void pictureBoxKugla_Click(object sender, EventArgs e)
        {
            timer1.Start();
            pictureBoxKugla.Image = Properties.Resources.bilijar_desno;
            korakX = 10;
            korakY = 0;
        }

        int korakX, korakY;

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (pictureBoxKugla.Left + pictureBoxKugla.Width + korakX > panelMartinela.Width)
                korakX *= -1;
            else if (pictureBoxKugla.Left + korakX < 0)
                korakX *= -1;
            pictureBoxKugla.Left += korakX;
        }

        private void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
            int jacina = (int)numericUpDown1.Value;
            timer1.Interval = 200 / jacina;
        }
    }
}