//--------------------------------------------------------------
#region Methods
//--------------------------------------------------------------
/// <inheritdoc/>
public override TimeSpan GetTotalDuration()
{
TimeSpan duration = TimeSpan.Zero;
if (X != null)
{
duration = AnimationHelper.Max(duration, X.GetTotalDuration());
}
if (Y != null)
{
duration = AnimationHelper.Max(duration, Y.GetTotalDuration());
}
return(duration);
}
/// <inheritdoc/>
public TimeSpan?GetAnimationTime(TimeSpan time)
{
// Get the effective start, end and duration of the clip.
TimeSpan clipStart, clipEnd, clipLength;
GetClip(out clipStart, out clipEnd, out clipLength);
// ----- Delay
time -= Delay;
if (time < TimeSpan.Zero)
{
// The animation has not started.
return(null);
}
// ----- Speed
time = new TimeSpan((long)(time.Ticks * (double)Speed));
// ----- Duration
TimeSpan duration = Duration ?? clipLength;
// ----- FillBehavior
if (time > duration)
{
if (FillBehavior == FillBehavior.Stop)
{
// The animation has stopped.
return(null);
}
// The animation holds the last value.
Debug.Assert(FillBehavior == FillBehavior.Hold);
time = duration;
}
// ----- Adjust animation time to play/loop clip from original timeline.
time = clipStart + ClipOffset + time;
AnimationHelper.LoopParameter(time, clipStart, clipEnd, LoopBehavior, out time);
// ----- Reverse
if (IsClipReversed)
{
time = clipEnd - (time - clipStart);
}
return(time);
}
//--------------------------------------------------------------
#region Methods
//--------------------------------------------------------------
/// <inheritdoc/>
public override TimeSpan GetTotalDuration()
{
TimeSpan duration = TimeSpan.Zero;
if (Scale != null)
{
duration = AnimationHelper.Max(duration, Scale.GetTotalDuration());
}
if (Rotation != null)
{
duration = AnimationHelper.Max(duration, Rotation.GetTotalDuration());
}
if (Translation != null)
{
duration = AnimationHelper.Max(duration, Translation.GetTotalDuration());
}
return(duration);
}
private void GetValueCore(TimeSpan time, ref T defaultSource, ref T defaultTarget, ref T result)
{
if (Animation == null)
{
Traits.Copy(ref defaultSource, ref result);
return;
}
TimeSpan clipStart, clipEnd, clipLength;
GetClip(out clipStart, out clipEnd, out clipLength);
// Correct time parameter.
time = clipStart + ClipOffset + time;
TimeSpan loopedTime;
bool hasCycleOffset = AnimationHelper.LoopParameter(time, clipStart, clipEnd, LoopBehavior, out loopedTime);
// ----- Reverse
if (IsClipReversed)
{
loopedTime = clipEnd - (loopedTime - clipStart);
}
if (!hasCycleOffset)
{
// Get animation value.
Animation.GetValue(loopedTime, ref defaultSource, ref defaultTarget, ref result);
}
else
{
// Animation with cycle offset.
var traits = Traits;
// 'defaultSource', 'defaultTarget' and 'result' may be the same instance! We need to
// ensure that the source and target values are not overwritten by GetValue().
// --> Use local variable to get animation value.
T value, startValue, endValue, cycleOffset;
traits.Create(ref defaultSource, out value);
traits.Create(ref defaultSource, out startValue);
traits.Create(ref defaultSource, out endValue);
traits.Create(ref defaultSource, out cycleOffset);
// Get animation value.
Animation.GetValue(loopedTime, ref defaultSource, ref defaultTarget, ref value);
// Apply cycle offset.
Animation.GetValue(clipStart, ref defaultSource, ref defaultTarget, ref startValue);
Animation.GetValue(clipEnd, ref defaultSource, ref defaultTarget, ref endValue);
if (IsClipReversed)
{
MathHelper.Swap(ref startValue, ref endValue);
}
AnimationHelper.GetCycleOffset(time, clipStart, clipEnd, ref startValue, ref endValue, traits, LoopBehavior, ref cycleOffset);
traits.Add(ref value, ref cycleOffset, ref result);
traits.Recycle(ref cycleOffset);
traits.Recycle(ref endValue);
traits.Recycle(ref startValue);
traits.Recycle(ref value);
}
}
/// <inheritdoc/>
public AnimationState GetState(TimeSpan time)
{
return(AnimationHelper.GetState(this, time));
}
/// <inheritdoc/>
public TimeSpan?GetAnimationTime(TimeSpan time)
{
return(AnimationHelper.GetAnimationTime(this, time));
}
