/// <summary>
/// Updates the brain boss
/// </summary>
/// <param name="elapsedTime">Time passed since last frame</param>
public override void Update(float elapsedTime)
{
//TODO: remove test timer when damage is implemented
testTimer -= elapsedTime;
if (testTimer <= 0)
{
takeDamage(1000);
if (this.protection != null)
{
protection.takeDamage(1000);
}
if (this.psiEmitter != null)
{
psiEmitter.takeDamage(1000);
}
testTimer = 8f;
}
switch (state)
{
case BrainBossState.Protected:
if (protection.Health <= 0)
{
ScrollingShooterGame.GameObjectManager.DestroyObject(protection.ID);
state = BrainBossState.MovingToCenter;
protection = null;
}
break;
case BrainBossState.MovingToCenter:
if (position.X < targetPositionX)
{
position.X += Math.Min(MOVE_SPEED * elapsedTime, Math.Abs(targetPositionX - position.X));
}
else if (position.X > targetPositionY)
{
position.X -= Math.Min(MOVE_SPEED * elapsedTime, Math.Abs(targetPositionX - position.X));
}
if (position.Y < targetPositionY)
{
position.Y += Math.Min(MOVE_SPEED * elapsedTime, Math.Abs(targetPositionY - position.Y));
}
else if (position.Y > targetPositionY)
{
position.Y -= Math.Min(MOVE_SPEED * elapsedTime, Math.Abs(targetPositionY - position.Y));
}
if (Math.Abs(targetPositionX - position.X) < 2 && Math.Abs(targetPositionY - position.Y) < 2)
{
state = BrainBossState.PsyAttack;
psiEmitter.startAttacking();
}
break;
case BrainBossState.PsyAttack:
if (psiEmitter.Health <= 0)
{
state = BrainBossState.DeathCharge;
}
break;
case BrainBossState.DeathCharge:
if (Health <= 0)
{
ScrollingShooterGame.GameObjectManager.DestroyObject(this.ID);
ScrollingShooterGame.GameObjectManager.CreateExplosion(ID);
return;
}
Vector2 vector = ScrollingShooterGame.Game.Player.GetPosition() - (position + centerOffset);
vector.Normalize();
vector *= MOVE_SPEED * elapsedTime;
position.X += vector.X;
position.Y += vector.Y;
for (int i = 0; i < 1; i++)
{
((EnemyLightningZap)ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.EnemyLightningZap, this.position + centerOffset)).Initialize((float)(rand.NextDouble() * Math.PI * 2), this.brainSpriteBounds.Width);
}
break;
}
psiEmitter.updatePosition(this.position + centerOffset);
}
