public override float?GetValue(IKeyframe <float?> keyframe, float keyframeProgress)
{
if (keyframe.StartValue == null || keyframe.EndValue == null)
{
throw new System.InvalidOperationException("Missing values for keyframe.");
}
return(MathExt.Lerp(keyframe.StartValue.Value, keyframe.EndValue.Value, keyframeProgress));
}
public override ScaleXy GetValue(IKeyframe <ScaleXy> keyframe, float keyframeProgress)
{
if (keyframe.StartValue == null || keyframe.EndValue == null)
{
throw new InvalidOperationException("Missing values for keyframe.");
}
var startTransform = keyframe.StartValue;
var endTransform = keyframe.EndValue;
return(new ScaleXy(MathExt.Lerp(startTransform.ScaleX, endTransform.ScaleX, keyframeProgress), MathExt.Lerp(startTransform.ScaleY, endTransform.ScaleY, keyframeProgress)));
}
