private void Start()
{
// Invokes the OnInitialize on the Tween driver. If returned false, the
// Tween is not ready to play or is incompatible. Then we'll decommission.
if (this.OnInitialize() == false)
{
this.Decommission();
}
// When From is not overwritten and the Tween has no delay, the valueFrom
// is requested from the inheriter. Then the animation will be set to its
// first frame. This is done during the Start method so other parameters
// can be set.
else if (this.hasDelay == false || this.goToFirstFrameImmediately == true)
{
if (this.didOverwriteFrom == false)
{
this.valueFrom = this.OnGetFrom();
}
this.OnUpdate(Easer.Apply(this.ease, 0));
}
}
private static float BounceInOut(float time)
{
return(time < 0.5f ? (1 - Easer.BounceOut(1 - 2 * time)) / 2 : (1 + Easer.BounceOut(2 * time - 1)) / 2);
}
private static float BounceIn(float time)
{
return(1 - Easer.BounceOut(1 - time));
}
public static float Apply(EaseType ease, float time)
{
switch (ease)
{
default:
return(0);
case EaseType.Linear:
return(Easer.Linear(time));
case EaseType.SineIn:
return(Easer.SineIn(time));
case EaseType.SineOut:
return(Easer.SineOut(time));
case EaseType.SineInOut:
return(Easer.SineInOut(time));
case EaseType.QuadIn:
return(Easer.QuadIn(time));
case EaseType.QuadOut:
return(Easer.QuadOut(time));
case EaseType.QuadInOut:
return(Easer.QuadInOut(time));
case EaseType.CubicIn:
return(Easer.CubicIn(time));
case EaseType.CubicOut:
return(Easer.CubicOut(time));
case EaseType.CubicInOut:
return(Easer.CubicInOut(time));
case EaseType.QuartIn:
return(Easer.QuartIn(time));
case EaseType.QuartOut:
return(Easer.QuartOut(time));
case EaseType.QuartInOut:
return(Easer.QuartInOut(time));
case EaseType.QuintIn:
return(Easer.QuintIn(time));
case EaseType.QuintOut:
return(Easer.QuintOut(time));
case EaseType.QuintInOut:
return(Easer.QuintInOut(time));
case EaseType.ExpoIn:
return(Easer.ExpoIn(time));
case EaseType.ExpoOut:
return(Easer.ExpoOut(time));
case EaseType.ExpoInOut:
return(Easer.ExpoInOut(time));
case EaseType.CircIn:
return(Easer.CircIn(time));
case EaseType.CircOut:
return(Easer.CircOut(time));
case EaseType.CircInOut:
return(Easer.CircInOut(time));
case EaseType.BackIn:
return(Easer.BackIn(time));
case EaseType.BackOut:
return(Easer.BackOut(time));
case EaseType.BackInOut:
return(Easer.BackInOut(time));
case EaseType.ElasticIn:
return(Easer.ElasticIn(time));
case EaseType.ElasticOut:
return(Easer.ElasticOut(time));
case EaseType.ElasticInOut:
return(Easer.ElasticInOut(time));
case EaseType.BounceIn:
return(Easer.BounceIn(time));
case EaseType.BounceOut:
return(Easer.BounceOut(time));
case EaseType.BounceInOut:
return(Easer.BounceInOut(time));
}
}
private void Update()
{
// When the tween is decommissioned, tweening is aborted.
if (this.isDecommissioned == true)
{
return;
}
// When the tween is paused, we'll just wait.
if (this.isPaused == true)
{
return;
}
// When the delay is active, the tween will wait for the delay to pass by.
if (this.hasDelay == true)
{
this.delay -= Time.deltaTime;
if (this.delay <= 0)
{
this.hasDelay = false;
// When the delay is over, the valueFrom is requested from the
// inheriter. Then the animation will be set to its first frame.
if (this.didOverwriteFrom == false)
{
this.valueFrom = this.OnGetFrom();
}
this.OnUpdate(Easer.Apply(this.ease, 0));
}
}
// When the tween has no duration, the timing will not be done and the
// animation will be set to its last frame amd decomissioned right away.
else if (this.hasDuration == false)
{
this.OnUpdate(Easer.Apply(this.ease, 1));
this.Decommission();
return;
}
// Oterwise it is... Showtime!
else
{
// Increase or decrease the time of the tween based on the direction.
var _timeDelta = Time.deltaTime / this.duration;
this.time += this.isPlayingForward == true ? _timeDelta : -_timeDelta;
// The time will be capped to 1, when pingpong is enabled the tween will
// play backwards, otherwise when the tween is not infinite, didReachEnd
// will be set to true.
if (this.time > 1)
{
this.time = 1;
if (this.hasPingPong == true)
{
this.isPlayingForward = false;
}
else if (this.isInfinite == false)
{
this.timeDidReachEnd = true;
}
else
{
this.time = 0;
}
}
// When pingpong is enabled, the time will be capped to 0 as well. When
// it is hit, the tween will play forwards again and didReachEnd will be
// set to true if the tween is not infinite.
else if (this.hasPingPong == true && this.time < 0)
{
this.time = 0;
this.isPlayingForward = true;
if (this.isInfinite == false)
{
this.timeDidReachEnd = true;
}
}
// The time will be updated on the inheriter.
this.OnUpdate(Easer.Apply(this.ease, this.time));
// When the end is reached either the loop count will be decreased, or
// the tween will be decommissioned, and the oncomplete may be invoked.
if (this.timeDidReachEnd == true)
{
if (this.hasLoopCount == true && this.loopCount > 1)
{
this.timeDidReachEnd = false;
this.loopCount -= 1;
this.time = 0;
}
else
{
if (this.hasOnComplete == true)
{
this.onComplete();
}
this.Decommission();
}
}
}
}
