/// <summary>
/// Updates the floating "xna" background labels.
/// </summary>
public override void Update(GameTime gameTime)
{
time += (float)gameTime.ElapsedGameTime.TotalSeconds;
// Spawn a new label?
if (time > XnaSpawnRate)
{
FloatingXna xna = new FloatingXna();
xna.Size = (float)random.NextDouble() * 2 + 0.5f;
xna.Position.X = (float)random.NextDouble() * 320 + 80;
xna.Position.Y = (float)random.NextDouble() * 700 + 50;
floatingXnas.Add(xna);
time -= XnaSpawnRate;
}
// Animate the existing labels.
int i = 0;
while (i < floatingXnas.Count)
{
FloatingXna xna = floatingXnas[i];
xna.Age += (float)gameTime.ElapsedGameTime.TotalSeconds;
// Different size labels move at different speeds.
float speed = 1.5f - xna.Size;
if (Math.Abs(speed) > 0.01f)
{
xna.Position.Y -= xna.Age * xna.Age / speed / 10;
}
// Remove old labels.
if (xna.Age >= XnaLifespan)
{
floatingXnas.RemoveAt(i);
}
else
{
i++;
}
}
base.Update(gameTime);
}
/// <summary>
/// Updates the floating "xna" background labels.
/// </summary>
public override void Update(GameTime gameTime)
{
time += (float)gameTime.ElapsedGameTime.TotalSeconds;
// Spawn a new label?
if (time > XnaSpawnRate)
{
FloatingXna xna = new FloatingXna();
xna.Size = (float)random.NextDouble() * 2 + 0.5f;
xna.Position.X = (float)random.NextDouble() * 320 + 80;
xna.Position.Y = (float)random.NextDouble() * 700 + 50;
floatingXnas.Add(xna);
time -= XnaSpawnRate;
}
// Animate the existing labels.
int i = 0;
while (i < floatingXnas.Count)
{
FloatingXna xna = floatingXnas[i];
xna.Age += (float)gameTime.ElapsedGameTime.TotalSeconds;
// Different size labels move at different speeds.
float speed = 1.5f - xna.Size;
if (Math.Abs(speed) > 0.01f)
xna.Position.Y -= xna.Age * xna.Age / speed / 10;
// Remove old labels.
if (xna.Age >= XnaLifespan)
floatingXnas.RemoveAt(i);
else
i++;
}
base.Update(gameTime);
}
