/// <summary>
/// Handle the behaviour of the enemy when it is following the player.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void Handle(EnemyContext context)
{
float distanceX = (float)Math.Round(context.Player.Position.X - context.Enemy.Position.X, 0);
// If the distance if below 0, the player is on the left
if (distanceX < 0)
{
Vector3 rotation = context.Enemy.DModel.Rotation;
context.Enemy.Rotation = new Vector3(MathHelper.ToRadians(270), rotation.Y, rotation.Z);
if (context.Enemy.PlayerXDirection != Enemy.XDirection.Left)
{
context.Enemy.LastPlayerXDirection = context.Enemy.PlayerXDirection;
context.Enemy.PlayerXDirection = Enemy.XDirection.Left;
}
context.Enemy.Speed = new Vector2(-context.Enemy.MaxSpeed.X, context.Enemy.Speed.Y);
}
// If the distance if above 0, the player is on the right
else if (distanceX > 0)
{
Vector3 rotation = context.Enemy.DModel.Rotation;
context.Enemy.Rotation = new Vector3(MathHelper.ToRadians(90), rotation.Y, rotation.Z);
if (context.Enemy.PlayerXDirection != Enemy.XDirection.Right)
{
context.Enemy.LastPlayerXDirection = context.Enemy.PlayerXDirection;
context.Enemy.PlayerXDirection = Enemy.XDirection.Right;
}
context.Enemy.Speed = new Vector2(context.Enemy.MaxSpeed.X, context.Enemy.Speed.Y);
}
}
/// <summary>
/// Handle the behaviour of the enemy when it is waking up.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void Handle(EnemyContext context)
{
if (((AnimatedModel)context.Enemy.DModel).Animation.Done == true)
{
context.ChangeState(Inactive.Instance);
}
}
/// <summary>
/// Handle the behaviour of the attacked enemy. When the attacked
/// animation finish, change the behaviour of the last behaviour.
/// </summary>
/// <param name="context"></param>
public void Handle(EnemyContext context)
{
if (((AnimatedModel)context.Enemy.DModel).Animation.Done == true)
{
((AnimatedModel)context.Enemy.DModel).Damaged = false;
context.ChangeState(context.LastState);
}
}
/// <summary>
/// Start the animation of the Following enemy.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void StartAnimation(EnemyContext context)
{
((AnimatedModel)context.Enemy.DModel).TimeSpeed = 0.75f;
((AnimatedModel)context.Enemy.DModel).Animation.StartClip("Walking", true);
// Start a new sound when the enemy detect the player
SoundManager.GetSound("EnemyPlayerDetected").Volume =
GameSettings.DefaultInstance.SoundVolume;
SoundManager.GetSound("EnemyPlayerDetected").Play(true, false);
}
/// <summary>
/// Handle the behaviour of the enemy when it is dying.
/// </summary>
/// <param name="context"></param>
public void Handle(EnemyContext context)
{
// Change the current speed for disappear in the ground.
context.Enemy.Speed = new Vector2(1f, 0f);
}
/// <summary>
/// Start the animation of the Dying enemy.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void StartAnimation(EnemyContext context)
{
((AnimatedModel)context.Enemy.DModel).TimeSpeed = 1f;
((AnimatedModel)context.Enemy.DModel).Animation.StartClip("Dying", false);
}
/// <summary>
/// Handle the behaviour of the enemy when it is attacking.
/// </summary>
/// <param name="context"></param>
public void Handle(EnemyContext context)
{
// Change the current speed of the enemy for avoid the horizontal
// position change.
context.Enemy.Speed = new Vector2(0f, context.Enemy.Speed.Y);
}
/// <summary>
/// Start the animation of the attacking enemy.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void StartAnimation(EnemyContext context)
{
((AnimatedModel)context.Enemy.DModel).TimeSpeed = 5f;
((AnimatedModel)context.Enemy.DModel).Animation.StartClip("RepeatAttack", true);
}
/// <summary>
/// Start the animation of the attacked enemy.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void StartAnimation(EnemyContext context)
{
// Set the animation speed and play the Attacked animation.
((AnimatedModel)context.Enemy.DModel).TimeSpeed = 2f;
((AnimatedModel)context.Enemy.DModel).Animation.StartClip("Attacked", false);
}
/// <summary>
/// Handle the behaviour of the enemy when it is inactive.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void Handle(EnemyContext context)
{
context.Enemy.Speed = new Vector2(0, context.Enemy.Speed.Y);
}
/// <summary>
/// Start the animation of the Inactive enemy.
/// </summary>
/// <param name="context">Context of the enemy.</param>
public void StartAnimation(EnemyContext context)
{
((AnimatedModel)context.Enemy.DModel).TimeSpeed = 0.25f;
((AnimatedModel)context.Enemy.DModel).Animation.StartClip("Waiting", true);
}