public void Update(GameTime gameTime, float elapsed)
{
// Y-movement
if (IsMovingDown)
{
CollisionRect.SetNewLocation(CollisionRect.TopLeft + new Vector2(0, Velocity * elapsed));
MovedDownDistance += Velocity * elapsed;
if (MovedDownDistance >= HEIGHT)
{
MovedDownDistance = 0f;
IsMovingDown = false;
// Perform one X-movement to get away from the edge of the screen to prevent turning around again
CollisionRect.SetNewLocation(CollisionRect.TopLeft + new Vector2((float)FaceDirection * Velocity * elapsed, 0));
}
}
else
{
// X-movement
CollisionRect.SetNewLocation(CollisionRect.TopLeft + new Vector2((float)FaceDirection * Velocity * elapsed, 0));
}
#region Shooting
ShootDelay.Update(gameTime);
if (ShootDelay.IsDone)
{
ShootDelay.Reset();
if (Maths.Chance(ShootChance))
{
Level.Instance.Projectiles.Add(new Projectile(CollisionRect.CenterLoc, null));
}
}
#endregion
}
public void Update(GameTime gameTime, float elapsed)
{
CollisionRect.SetNewLocation(CollisionRect.TopLeft + new Vector2(MoveDir * Velocity * elapsed, 0));
if ((MoveDir > 0 && CollisionRect.Left > Engine.Instance.Width) ||
(MoveDir < 0 && CollisionRect.Right < 0))
{
IsDisposed = true;
}
}
public void Update(GameTime gameTime, float elapsed)
{
// Move
CollisionRect.SetNewLocation(CollisionRect.TopLeft + Velocity * MoveDir * elapsed);
#region Check collision
// Collision with walls
foreach (Wall w in Level.Instance.Walls)
{
if (w.Collides(CollisionRect))
{
IsDisposed = true;
Engine.Instance.Audio.PlaySound("enemyHit");
return;
}
}
if (Owner == null)
{
// Outside screen
if (CollisionRect.Top > Engine.Instance.Height)
{
IsDisposed = true;
return;
}
// Collision with player(s)
foreach (Player p in Level.Instance.Players)
{
if (p.CollisionRect.Intersects(CollisionRect))
{
p.TakeDamage();
IsDisposed = true;
Level.Instance.Projectiles.Remove(this);
Engine.Instance.Audio.PlaySound("enemyHit");
return;
}
}
}
else
{
// Outside screen
if (CollisionRect.Bottom < 0)
{
IsDisposed = true;
return;
}
// Collision with enemies
foreach (Enemy e in Level.Instance.Enemies)
{
if (e.CollisionRect.Intersects(CollisionRect))
{
Owner.Score += e.TakeDamage();
IsDisposed = true;
Engine.Instance.Audio.PlaySound("enemyHit");
return;
}
}
// Collision with bonus enemy
if (Level.Instance.BonusEnemy != null)
{
if ((Level.Instance.BonusEnemy.CollisionRect.Intersects(CollisionRect)))
{
Level.Instance.BonusEnemy.IsDisposed = true;
Owner.Score += 300;
IsDisposed = true;
Engine.Instance.Audio.PlaySound("bonusHit");
return;
}
}
}
#endregion
}