20/21: Programiranje IT 3

Zadatak: Napraviti igricu u kojoj se loptica odbija od reket na dnu, a ako loptica "ispadne" mimo reket, onda je igrica gotova.

Dole je dat primer u kojem bi moglo i da radi. Pokušajte da napravite sami tu igricu kod kuće, koristeći verziju Visual Studija koju god da imate. Treba vam Forma (Form1), panel (racket) u nekoj boji koji će izigravati reket, boks sa slikom loptice (ball), tajmer za to da se za svaki tik menja nešto u igrici. Dodajte način da prikažete broj bodova. Pitanje za razmišljanje: Kako se izlazi iz igrice?

Pogledajte sledeći kod:

namespace LopticaSkocica
{
    public partial class Form1 : Form
    {
        public int speed_left = 10;  // speed of ball
        public int speed_top = 10;
        public int point = 0;     // score point

        public Form1()
        {
            InitializeComponent();
            timer1.Enabled = true;
            Cursor.Hide();         // hide the cursor

            this.FormBorderStyle = FormBorderStyle.None;  // remove any border
            this.TopMost = true;              // bring the form to the front
            this.Bounds = Screen.PrimaryScreen.Bounds; // make it fullscreen
            racket.Top = this.Bottom - (this.Bottom / 10); // set the position of racket
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            racket.Left = Cursor.Position.X - (racket.Width / 2); // set the center of the racket to the position of the cursor
            ball.Left += speed_left;   // move the ball
            ball.Top += speed_top;

            //racket collision:

            if(ball.Bottom >= racket.Top && ball.Bottom <= racket.Bottom && ball.Left >= racket.Left && ball.Right <= racket.Right)
            {
                speed_top += 2;
                speed_left += 2;
                speed_top = -speed_top;  // change the direction 
                point += 1;
                lblBodovi.Text = point.ToString();
            }

            //colision with wall

            if(ball.Left <= this.Left)
            {
                speed_left = -speed_left;
            }
            if(ball.Right >= this.Right)
            {
                speed_left = -speed_left;
            }
            if(ball.Bottom >= this.Bottom)
            {
                timer1.Enabled = false;  // ball is out - stop the game
                MessageBox.Show("Igra je gotova");
            }
            if(ball.Top <= this.Top)
            {
                speed_top = -speed_top;
            }

        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if(e.KeyCode == Keys.Escape)
            {
                Application.Exit();  // press ESC to quit
            }  
        }
    }
}