/// <summary>
/// Draw content.
/// </summary>
/// <param name="spriteBatch"></param>
public void Draw(GameTime gameTime, SpriteBatch spriteBatch)
{
messageTimer += (float)gameTime.ElapsedGameTime.TotalSeconds;
Scrolling1.Draw(spriteBatch);
Scrolling2.Draw(spriteBatch);
foreach (var sprite in Sprites)
{
sprite.Draw(gameTime, spriteBatch);
}
if (IsUpgraded && messageTimer < 3f)
{
string message = "Ship Upgraded!";
float messagePossitionX = Camera.SCREEN_WIDTH / 2 - FontManager.Instance.Arial.MeasureString(message).X / 2;
spriteBatch.DrawString(FontManager.Instance.Arial, message, new Vector2(messagePossitionX, messagePositionY), Color.White);
messagePositionY--;
}
else
{
IsUpgraded = false;
messagePositionY = Camera.SCREEN_HEIGHT / 2;
}
}
/// <summary>
/// Update background images.
/// </summary>
private void UpdateBackground()
{
// X is increasing img1
if (Scrolling1.Rectangle.X + Scrolling1.Texture.Width <= Player.Position.X - 330)
{
Scrolling1.Rectangle.X = Scrolling2.Rectangle.X + Scrolling2.Texture.Width;
}
// Y is decreasing img1
if (Scrolling1.Rectangle.Y + Scrolling1.Texture.Height <= Player.Position.Y - 200)
{
Scrolling1.Rectangle.Y = Scrolling2.Rectangle.Y + Scrolling2.Texture.Height;
}
// X is increasing img2
if (Scrolling2.Rectangle.X + Scrolling2.Texture.Width <= Player.Position.X - 330)
{
Scrolling2.Rectangle.X = Scrolling1.Rectangle.X + Scrolling1.Texture.Width;
}
// Y is decreasing img2
if (Scrolling2.Rectangle.Y + Scrolling2.Texture.Height <= Player.Position.Y - 200)
{
Scrolling2.Rectangle.Y = Scrolling1.Rectangle.Y + Scrolling1.Texture.Height;
}
// Y is decreasing
if (Scrolling1.Rectangle.Y >= Player.Position.Y)
{
Scrolling1.Rectangle.Y -= 200;
Scrolling2.Rectangle.Y -= 200;
}
// X is decreasing
if (Scrolling1.Rectangle.X >= Player.Position.X - 200)
{
Scrolling1.Rectangle.X -= 200;
Scrolling2.Rectangle.X -= 200;
}
Scrolling1.Update();
Scrolling2.Update();
}
