public void Draw(GameTime gameTime, SpriteBatch spriteBatch)
{
spriteBatch.Draw(bg, new Vector2(0,0), null, Color.White, 0.0f, Vector2.Zero, 0.5f, SpriteEffects.None, 0);
hero.Draw(gameTime, spriteBatch);
spriteBatch.DrawString(damageStringFont, damageNumber + " damage!", Vector2.Zero, Color.Black);
playButton.Draw(gameTime, spriteBatch);
}