private void CreateLabel()
{
particles p = new particles();
Label label = new Label();
string[] dirs = { "RU", "RD", "LU", "LD" };
string dir;
Random random = new Random();
int k = random.Next(0, 3);
dir = dirs[k];
int x = random.Next(0, Width - 50);
int y = random.Next(0, Height - 50);
Point point = new Point(x, y);
label.Location = point;
label.Text = aa + "";
aa++;
label.Font = new Font("Times New Roman", 11.25F, FontStyle.Bold, GraphicsUnit.Point, 204);
label.Width = 13; label.Height = 15;
label.BackColor = Color.Black; label.ForeColor = Color.White;
p.label = label;
p.dir = dir;
labels.Add(p);
Controls.Add(label);
}
private particles Changedir(particles p)
{
if (p.label.Location.X <= 10)
{
if (p.dir == "LU")
{
p.dir = "RU";
}
if (p.dir == "LD")
{
p.dir = "RD";
}
}
if (p.label.Location.X >= Width - 40)
{
if (p.dir == "RU")
{
p.dir = "LU";
}
if (p.dir == "RD")
{
p.dir = "LD";
}
}
if (p.label.Location.Y <= 10)
{
if (p.dir == "RU")
{
p.dir = "RD";
}
if (p.dir == "LU")
{
p.dir = "LD";
}
}
if (p.label.Location.Y >= Height - 70)
{
if (p.dir == "LD")
{
p.dir = "LU";
}
if (p.dir == "RD")
{
p.dir = "RU";
}
}
return(p);
}