private void ChooseIdle()
{
if (NpcActionExtensions.IsSpecialIdle(this.CurrentAction))
{
this.CurrentAction = NpcAction.Idle;
}
else
{
float num1 = RandomHelper.Unit();
float num2 = (float) (1 + FezMath.AsNumeric(this.CanIdle2) + FezMath.AsNumeric(this.CanIdle3));
if ((double) num1 < 1.0 / (double) num2)
this.CurrentAction = NpcAction.Idle;
else if ((double) num2 > 1.0 && (double) num1 < 2.0 / (double) num2)
{
this.CurrentAction = this.CanIdle2 ? NpcAction.Idle2 : NpcAction.Idle3;
}
else
{
if ((double) num2 <= 2.0 || (double) num1 >= 3.0 / (double) num2)
return;
this.CurrentAction = NpcAction.Idle3;
}
}
}
private void Turn()
{
this.LookingDirection = FezMath.GetOpposite(this.LookingDirection);
this.UpdateRotation();
this.CurrentAction = this.CanWalk ? NpcAction.Walk : NpcAction.Idle;
}
private void ToggleAction()
{
NpcAction npcAction = this.CurrentAction;
if (this.initialized)
this.RandomizeAction();
else
this.CurrentAction = this.CanIdle ? NpcAction.Idle : NpcAction.Walk;
this.TimeUntilActionChange = new TimeSpan(0, 0, RandomHelper.Random.Next(2, 5));
this.TimeSinceActionChange = TimeSpan.Zero;
if (this.initialized && this.CurrentAction == npcAction)
return;
this.UpdateAction();
}
private void RandomizeAction()
{
switch (this.CurrentAction)
{
case NpcAction.Turn:
this.Turn();
break;
case NpcAction.Burrow:
ServiceHelper.RemoveComponent<NpcState>(this);
break;
case NpcAction.TakeOff:
this.CurrentAction = NpcAction.Fly;
this.UpdateAction();
break;
case NpcAction.Land:
this.CurrentAction = NpcAction.Idle;
this.UpdateAction();
break;
default:
if ((RandomHelper.Probability(0.5) || !this.CanWalk) && this.CanIdle)
{
if (this.CanWalk || RandomHelper.Probability(0.5))
{
this.ChooseIdle();
break;
}
else if (this.CanTurn)
{
this.CurrentAction = NpcAction.Turn;
break;
}
else
{
this.Turn();
break;
}
}
else
{
if (!this.CanWalk)
throw new InvalidOperationException("This NPC can't walk or idle!");
if ((double) this.WalkStep == 1.0 || (double) this.WalkStep == 0.0)
{
if (this.CanIdle && RandomHelper.Probability(0.5))
{
this.ChooseIdle();
break;
}
else if (this.CanTurn)
{
this.CurrentAction = NpcAction.Turn;
break;
}
else
{
this.Turn();
break;
}
}
else if (this.CanTurn && RandomHelper.Probability(0.5))
{
this.CurrentAction = NpcAction.Turn;
break;
}
else
{
this.CurrentAction = NpcAction.Walk;
break;
}
}
}
}
private void Fly(TimeSpan elapsed)
{
if (!this.flyRight.HasValue)
this.flyRight = new Vector3?(Vector3.Transform(Vector3.Right, this.Group.Rotation));
if ((!this.FlyingBack || this.Npc.ActorType != ActorType.Owl) && FezMath.AlmostEqual(FezMath.Dot(FezMath.Abs(Vector3.Transform(Vector3.Right, this.Group.Rotation)), FezMath.Abs(this.flyRight.Value)), 0.0f, 0.1f))
{
NpcState npcState = this;
Vector3? nullable1 = npcState.flyRight;
Vector3 vector3 = Vector3.Transform(Vector3.Right, this.Group.Rotation);
Vector3? nullable2 = nullable1.HasValue ? new Vector3?(nullable1.GetValueOrDefault() + vector3) : new Vector3?();
npcState.flyRight = nullable2;
}
this.flySpeed = Vector2.Lerp(this.flySpeed, new Vector2(4f, 3f), 0.03333334f);
Vector2 vector2 = this.flySpeed * ((1f - FezMath.Frac(this.CurrentTiming.Step + 0.75f)) * new Vector2(0.4f, 0.6f) + new Vector2(0.6f, 0.4f));
this.Position += (float) elapsed.TotalSeconds * (vector2.X * this.flyRight.Value + Vector3.Up * vector2.Y * (this.FlyingBack ? -1f : 1f));
if (FezMath.IsOrthographic(this.CameraManager.Viewpoint) && this.CameraManager.ViewTransitionReached)
{
Vector3 b = FezMath.ForwardVector(this.CameraManager.Viewpoint);
if (this.InBackground)
b *= -1f;
NearestTriles nearestTriles = this.LevelManager.NearestTrile(this.Position, QueryOptions.Simple);
TrileInstance trileInstance = nearestTriles.Surface ?? nearestTriles.Deep;
if (trileInstance != null)
{
Vector3 a = trileInstance.Center + trileInstance.TransformedSize / 2f * -b;
Vector3 vector3 = FezMath.DepthMask(this.CameraManager.Viewpoint);
if ((double) FezMath.Dot(this.Position, b) > (double) FezMath.Dot(a, b))
this.Position = this.Position * FezMath.ScreenSpaceMask(this.CameraManager.Viewpoint) + a * vector3 - b;
}
}
if (this.CurrentTiming.Frame == 0 && this.lastFrame != 0)
SoundEffectExtensions.EmitAt(this.flySound, this.Position);
this.lastFrame = this.CurrentTiming.Frame;
if (this.FlyingBack)
{
if ((double) this.Position.Y > (double) this.Npc.Position.Y)
return;
this.Position = this.Npc.Position;
this.CurrentAction = NpcAction.Land;
this.flySpeed = Vector2.Zero;
this.UpdateAction();
this.FlyingBack = false;
this.flyRight = new Vector3?();
}
else
{
if (this.CameraManager.Frustum.Contains(new BoundingBox(this.Position - Vector3.One, this.Position + Vector3.One)) != ContainmentType.Disjoint)
return;
if (this.MayComeBack)
{
this.OwlInvisible = true;
this.MayComeBack = false;
this.CurrentAction = NpcAction.Idle;
this.flySpeed = Vector2.Zero;
this.flyRight = new Vector3?();
this.UpdateAction();
}
else
ServiceHelper.RemoveComponent<NpcState>(this);
}
}
