Rezolvari

Programare

namespace Apl_cs_10
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        System.Drawing.Graphics desen;
        System.Random n;
        System.Drawing.Pen creion_albastru;
        System.Drawing.SolidBrush pensula_rosie;
        System.Drawing.SolidBrush radiera;
        int cnt;
        private void deseneaza(int x0,int y0,int w, int nl)
        {
            int x=x0,y=y0;
            //desen.Clear(BackColor);
            //desen.DrawRectangle(creion_albastru,x0,y0,w,w);
            while(x<x0+w)
            {
                desen.DrawLine(creion_albastru,x0+w/2,y0,x,y0+w);
                desen.DrawLine(creion_albastru, x0 + w / 2, y0+w, x, y0);
                x+=w/nl;
            }
            while (y < y0 + w)
            {
                desen.DrawLine(creion_albastru, x0, y0+w/2, x0+w, y);
                desen.DrawLine(creion_albastru, x0 + w, y0 + w / 2, x0, y);
                y += w / nl;
            }
        }
        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            desen = this.CreateGraphics();
            n = new System.Random();
            creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
            pensula_rosie=new System.Drawing.SolidBrush(System.Drawing.Color.Red);
            radiera=new System.Drawing.SolidBrush(this.BackColor);
            //deseneaza(10,100,200,30);
            
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            if (cnt < 5)
                deseneaza(50 + n.Next(this.Width - 200), 50 + n.Next(this.Height - 200), 100 + n.Next(100), 20 + n.Next(20));
            else
            {
                desen.Clear(BackColor);
                cnt = 0;
            }
            cnt++;
        }
    }
}