/// <summary>
/// Update function for Warming up: Transition state
/// </summary>
private void UpdateTransitionState()
{
SpinTheArrow();
if (mSpinRate < kMaxSpinRate)
{
mSpinRate += kDeltaSpin;
}
else
{
// Transition to Spin state
mArrowState = SpinningArrowState.ArrowSpinning;
}
}
/// <summary>
/// Update function to track the hero. If hero gets too far, transit back to
/// "warm-up" state.
/// </summary>
/// <param name="toHero">vector point to the hero.</param>
private void UpdatePointToHero(Vector2 toHero)
{
float dist = toHero.Length();
if (dist < kHeroTriggerDistance)
{
FrontDirection = toHero;
}
else
{
// Go back to TransitionState for spinning up the arrow
mArrowState = SpinningArrowState.ArrowTransition;
}
}
/// <summary>
/// Update function for steady state spinning, capable of detecting the hero
/// </summary>
/// <param name="hero">if hero gets too close, hero will be tracked</param>
private void UpdateSpinningState(TexturedPrimitive hero)
{
SpinTheArrow();
// Check for hero ...
Vector2 toHero = hero.Position - Position;
if (toHero.Length() < kHeroTriggerDistance)
{
// Transition to PointsToHeroState
mSpinRate = 0f;
mArrowState = SpinningArrowState.ArrowPointsToHero;
}
}
/// <summary>
/// Update function for Warming up: Transition state
/// </summary>
private void UpdateTransitionState()
{
SpinTheArrow();
if (mSpinRate < kMaxSpinRate)
{
mSpinRate += kDeltaSpin;
}
else
{
// Transition to Spin state
mArrowState = SpinningArrowState.ArrowSpinning;
mImage = Game1.sContent.Load <Texture2D>("RightArrow");
}
}
/// <summary>
/// Update function to track the hero. If hero gets too far, transit back to
/// "warm-up" state.
/// </summary>
/// <param name="toHero">vector point to the hero.</param>
private void UpdatePointToHero(Vector2 toHero)
{
float dist = toHero.Length();
if (dist < kHeroTriggerDistance)
{
FrontDirection = toHero;
}
else
{
// Go back to TransitionState for spinning up the arrow
mArrowState = SpinningArrowState.ArrowTransition;
mImage = Game1.sContent.Load <Texture2D>("TransientArrow");
}
}
