using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing;

namespace Experiment1
{
    class Experiment
    {
        static int schermHeight;
        static int schermWidth;
        static ExpForm scherm;
        static Button knop1;
        static Button knop2;

        public static void Main()
        {
            scherm = new ExpForm();
            knop1 = Createknop();
            knop2 = Createknop();
            knop2.Hide();
            scherm.Controls.Add(knop1);
            knop1.Click += Knop1Clicked;
            knop2.Click += Knop2Clicked;
            schermHeight = Screen.FromControl(scherm).Bounds.Height;
            schermWidth = Screen.FromControl(scherm).Bounds.Width;
            Application.Run(scherm);
        }
        private static void Knop1Clicked(object sender, System.EventArgs e)
        {
            Button clickedButton = sender as Button;
            clickedButton.Hide();
            Randomizeknop2();
            knop2.Show();
            scherm.Controls.Add(knop2);
        }

        public static Button Createknop()
        {
            Button knop = new Button();
            knop.Size = new Size(200, 100);
            knop.Location = new Point(650, 350);
            knop.Text = "Klik!";
            return knop;
        }
        public static void Randomizeknop2()
        {
            Random rnd = new Random();
            int size = rnd.Next(50, 350);
            int x = rnd.Next(0, schermWidth-size);
            int y = rnd.Next(0, schermHeight-size-65);
            knop2.Size = new Size(size, size);
            knop2.Location = new Point(x, y);
            knop2.Text = "Klik!";
        }
        private static void Knop2Clicked(object sender, System.EventArgs e)
        {
            Button clickedButton = sender as Button;
            clickedButton.Hide();
            knop1.Show();
        }
    }
    class ExpForm : Form
    {
       public ExpForm()
        {
            this.BackColor = Color.CadetBlue;
            this.Text = "Experiment";
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
        }
    }
}