private static void Attack(ContentManager Content, GameTime gameTime, Boss bossDragon, EnemyAttack bossFireBall, List<EnemyAttack> bossFireBalls)
{
// The boss will attack on set intervals
coolDown += (float)gameTime.ElapsedGameTime.TotalSeconds;
// Fireballs are added to a list to allow the boss to shoot more than once
foreach (var fireBall in bossFireBalls)
{
fireBall.Update();
}
if (coolDown > 3)
{
// A new fireball is generated in a position where it matches the boss mouth
bossFireBall = new EnemyAttack(Content.Load<Texture2D>("Images\\Dragonfire"), new Vector2(bossDragon.Position.X - 65, bossDragon.Position.Y + bossDragon.Texture.Height / 2 - 40), 0f, -10f);
bossFireBalls.Clear();
coolDown = 0;
// The fireball is added to the list of fireballs
bossFireBalls.Add(bossFireBall);
// this variable is used as a trigger to change the boss animation
shot = true;
// A sound is played each time the boss fires
bossDragon.PlaySound();
}
}
private static void BossSummon(ContentManager Content, GameTime gameTime, Boss bossDragon, EnemyAttack bossFireBall, List<EnemyAttack> bossFireBalls)
{
if (shadow != 255)
{
// At the beginig only the shadow of the poss will be visible
// This can be acheive by setting all the colors to zero and
// gradually increasing the alpha channel till he is visible
color = new Color(0, 0, 0, shadow);
shadow += 1;
bossDragon.SetColor = color;
}
else if (appear != 255)
{
// After the boss is visible the colors start appearing
color = new Color(appear, appear, appear, shadow);
appear += 1;
bossDragon.SetColor = color;
}
else
{
// The boss won't be able to attack until he is completely colored and visible
Attack(Content, gameTime, bossDragon, bossFireBall, bossFireBalls);
}
}
public static void FireBallGenerator(ContentManager Content, List<Enemy> dragons, List<EnemyAttack> fireBalls)
{
foreach (var dragon in dragons)
{
// If attack interval is larger that 2 -> fire
if (dragon.Interval > 2)
{
dragon.Interval = 0;
// If there are less than 10 firebals on the screen -> fire
if (fireBalls.Count < 10)
{
// Generate a new fireBall with position of the current dragon plus his speed
// The offset -40px X and 50px Y is to align the fireball with the mouth of the dragon
EnemyAttack fireBall = new EnemyAttack(Content.Load<Texture2D>("Images\\FireBall"),
new Vector2(dragon.Position.X - 40, dragon.Position.Y + 50), dragon.VelocityX);
fireBalls.Add(fireBall);
// A sound is played during each shot
dragon.PlaySound();
// The dragon texture changes during each shot
dragon.Texture = Content.Load<Texture2D>("Images\\Babydragon2");
}
}
if (dragon.CoolDown > 3)
{
// Used to change the texture back to normal
dragon.CoolDown = 0;
dragon.Texture = Content.Load<Texture2D>("Images\\Babydragon1");
}
}
}
