public void BlendGroupWithTwoAnimationsSynchronized()
{
var property1 = new AnimatableProperty <float> {
Value = 123.45f
};
var blendGroup = new BlendGroup {
FillBehavior = FillBehavior.Stop
};
var animation1 = new SingleFromToByAnimation {
From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0)
};
var animation2 = new SingleFromToByAnimation {
From = 100, To = 300, Duration = TimeSpan.FromSeconds(2.0)
};
blendGroup.Add(animation1);
blendGroup.Add(animation2);
Assert.AreEqual(1.0f, blendGroup.GetWeight(0));
Assert.AreEqual(1.0f, blendGroup.GetWeight(1));
Assert.AreEqual(TimeSpan.FromSeconds(2.0), blendGroup.GetTotalDuration());
blendGroup.SynchronizeDurations();
Assert.AreEqual(TimeSpan.FromSeconds(1.5), blendGroup.GetTotalDuration());
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
controller.UpdateAndApply();
Assert.AreEqual(50.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.75)); // t = 0.75
manager.ApplyAnimations();
Assert.AreEqual(TimeSpan.FromSeconds(1.5), blendGroup.GetTotalDuration());
Assert.AreEqual(0.5f * 50.0f + 0.5f * 200.0f, property1.Value);
blendGroup.SetWeight(0, 0);
Assert.AreEqual(TimeSpan.FromSeconds(2.0), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.FromSeconds(0.25)); // t = 1.0
manager.ApplyAnimations();
Assert.AreEqual(200.0f, property1.Value);
blendGroup.SetWeight(0, 10);
blendGroup.SetWeight(1, 0);
Assert.AreEqual(TimeSpan.FromSeconds(1.0), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.Zero); // t = 1.0
manager.ApplyAnimations();
Assert.AreEqual(100.0f, property1.Value);
blendGroup.SetWeight(0, 10);
blendGroup.SetWeight(1, 1);
Assert.AreEqual(new TimeSpan((long)((1.0f * 10.0f / 11.0f + 2.0f * 1.0f / 11.0f) * TimeSpan.TicksPerSecond)), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.FromSeconds(0.5)); // t = 1.5
manager.ApplyAnimations();
Assert.AreEqual(123.45f, property1.Value);
Assert.AreEqual(AnimationState.Stopped, controller.State);
}
public void BlendGroupWithOneAnimation()
{
var property1 = new AnimatableProperty <float> {
Value = 123.45f
};
var blendGroup = new BlendGroup {
FillBehavior = FillBehavior.Stop
};
var animation = new SingleFromToByAnimation {
From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0)
};
blendGroup.Add(animation);
Assert.AreEqual(1.0f, blendGroup.GetWeight(0));
Assert.AreEqual(1.0f, blendGroup.GetWeight(animation));
blendGroup.SetWeight(0, 10.0f);
Assert.AreEqual(10.0f, blendGroup.GetWeight(0));
Assert.AreEqual(10.0f, blendGroup.GetWeight(animation));
blendGroup.SetWeight(animation, 0.5f);
Assert.AreEqual(0.5f, blendGroup.GetWeight(0));
Assert.AreEqual(0.5f, blendGroup.GetWeight(animation));
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
controller.UpdateAndApply();
Assert.AreEqual(0.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(25.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(50.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(75.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(100.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(123.45f, property1.Value);
Assert.AreEqual(AnimationState.Stopped, controller.State);
}
public void ShouldDoNothingWhenWeightsAreZero()
{
var blendGroup = new BlendGroup {
FillBehavior = FillBehavior.Stop
};
var animation1 = new SingleFromToByAnimation {
From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0)
};
var animation2 = new SingleFromToByAnimation {
From = 100, To = 300, Duration = TimeSpan.FromSeconds(2.0)
};
blendGroup.Add(animation1);
blendGroup.Add(animation2);
blendGroup.SetWeight(0, 0);
blendGroup.SetWeight(1, 0);
Assert.That(() => blendGroup.SynchronizeDurations(), Throws.Nothing);
blendGroup.Update();
Assert.AreEqual(0.0f, blendGroup.GetNormalizedWeight(0));
Assert.AreEqual(0.0f, blendGroup.GetNormalizedWeight(1));
}
public void BlendGroupWithOneAnimation()
{
var property1 = new AnimatableProperty<float> { Value = 123.45f };
var blendGroup = new BlendGroup { FillBehavior = FillBehavior.Stop };
var animation = new SingleFromToByAnimation { From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0) };
blendGroup.Add(animation);
Assert.AreEqual(1.0f, blendGroup.GetWeight(0));
Assert.AreEqual(1.0f, blendGroup.GetWeight(animation));
blendGroup.SetWeight(0, 10.0f);
Assert.AreEqual(10.0f, blendGroup.GetWeight(0));
Assert.AreEqual(10.0f, blendGroup.GetWeight(animation));
blendGroup.SetWeight(animation, 0.5f);
Assert.AreEqual(0.5f, blendGroup.GetWeight(0));
Assert.AreEqual(0.5f, blendGroup.GetWeight(animation));
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
controller.UpdateAndApply();
Assert.AreEqual(0.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(25.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(50.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(75.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(100.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.25));
manager.ApplyAnimations();
Assert.AreEqual(123.45f, property1.Value);
Assert.AreEqual(AnimationState.Stopped, controller.State);
}
public BlendedAnimationSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
Rectangle bounds = GraphicsService.GraphicsDevice.Viewport.TitleSafeArea;
// Create the animatable object.
_animatableSprite = new AnimatableSprite("SpriteA", SpriteBatch, Logo)
{
Position = new Vector2(bounds.Center.X, bounds.Center.Y / 2.0f),
Color = Color.Red,
};
Vector2FromToByAnimation slowLeftRightAnimation = new Vector2FromToByAnimation
{
TargetProperty = "Position",
From = new Vector2(bounds.Left + 100, bounds.Top + 200),
To = new Vector2(bounds.Right - 100, bounds.Top + 200),
Duration = TimeSpan.FromSeconds(4),
EasingFunction = new HermiteEase { Mode = EasingMode.EaseInOut },
};
ColorKeyFrameAnimation redGreenAnimation = new ColorKeyFrameAnimation
{
TargetProperty = "Color",
EnableInterpolation = true,
};
redGreenAnimation.KeyFrames.Add(new KeyFrame<Color>(TimeSpan.FromSeconds(0), Color.Red));
redGreenAnimation.KeyFrames.Add(new KeyFrame<Color>(TimeSpan.FromSeconds(4), Color.Green));
TimelineGroup animationA = new TimelineGroup
{
slowLeftRightAnimation,
redGreenAnimation,
};
Vector2FromToByAnimation fastLeftRightAnimation = new Vector2FromToByAnimation
{
TargetProperty = "Position",
From = new Vector2(bounds.Left + 100, bounds.Bottom - 200),
To = new Vector2(bounds.Right - 100, bounds.Bottom - 200),
Duration = TimeSpan.FromSeconds(1),
EasingFunction = new HermiteEase { Mode = EasingMode.EaseInOut },
};
ColorKeyFrameAnimation blackWhiteAnimation = new ColorKeyFrameAnimation
{
TargetProperty = "Color",
EnableInterpolation = true,
};
blackWhiteAnimation.KeyFrames.Add(new KeyFrame<Color>(TimeSpan.FromSeconds(0), Color.Black));
blackWhiteAnimation.KeyFrames.Add(new KeyFrame<Color>(TimeSpan.FromSeconds(1), Color.White));
TimelineGroup animationB = new TimelineGroup
{
fastLeftRightAnimation,
blackWhiteAnimation,
};
// Create a BlendGroup that blends animationA and animationB.
// The BlendGroup uses the TargetProperty values of the contained animations to
// to match the animations that should be blended:
// slowLeftRightAnimation with fastLeftRightAnimation
// redGreenAnimation with blackWhiteAnimation
_blendedAnimation = new BlendGroup
{
LoopBehavior = LoopBehavior.Oscillate,
Duration = TimeSpan.MaxValue,
};
_blendedAnimation.Add(animationA, 1);
_blendedAnimation.Add(animationB, 0);
_blendedAnimation.SynchronizeDurations();
// Start blended animation.
AnimationService.StartAnimation(_blendedAnimation, _animatableSprite).UpdateAndApply();
}
public void ShouldDoNothingWhenWeightsAreZero()
{
var blendGroup = new BlendGroup { FillBehavior = FillBehavior.Stop };
var animation1 = new SingleFromToByAnimation { From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0) };
var animation2 = new SingleFromToByAnimation { From = 100, To = 300, Duration = TimeSpan.FromSeconds(2.0) };
blendGroup.Add(animation1);
blendGroup.Add(animation2);
blendGroup.SetWeight(0, 0);
blendGroup.SetWeight(1, 0);
Assert.That(() => blendGroup.SynchronizeDurations(), Throws.Nothing);
blendGroup.Update();
Assert.AreEqual(0.0f, blendGroup.GetNormalizedWeight(0));
Assert.AreEqual(0.0f, blendGroup.GetNormalizedWeight(1));
}
public void BlendGroupWithTwoAnimationsSynchronized()
{
var property1 = new AnimatableProperty<float> { Value = 123.45f };
var blendGroup = new BlendGroup { FillBehavior = FillBehavior.Stop };
var animation1 = new SingleFromToByAnimation { From = 0, To = 100, Duration = TimeSpan.FromSeconds(1.0) };
var animation2 = new SingleFromToByAnimation { From = 100, To = 300, Duration = TimeSpan.FromSeconds(2.0) };
blendGroup.Add(animation1);
blendGroup.Add(animation2);
Assert.AreEqual(1.0f, blendGroup.GetWeight(0));
Assert.AreEqual(1.0f, blendGroup.GetWeight(1));
Assert.AreEqual(TimeSpan.FromSeconds(2.0), blendGroup.GetTotalDuration());
blendGroup.SynchronizeDurations();
Assert.AreEqual(TimeSpan.FromSeconds(1.5), blendGroup.GetTotalDuration());
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
controller.UpdateAndApply();
Assert.AreEqual(50.0f, property1.Value);
manager.Update(TimeSpan.FromSeconds(0.75)); // t = 0.75
manager.ApplyAnimations();
Assert.AreEqual(TimeSpan.FromSeconds(1.5), blendGroup.GetTotalDuration());
Assert.AreEqual(0.5f * 50.0f + 0.5f * 200.0f, property1.Value);
blendGroup.SetWeight(0, 0);
Assert.AreEqual(TimeSpan.FromSeconds(2.0), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.FromSeconds(0.25)); // t = 1.0
manager.ApplyAnimations();
Assert.AreEqual(200.0f, property1.Value);
blendGroup.SetWeight(0, 10);
blendGroup.SetWeight(1, 0);
Assert.AreEqual(TimeSpan.FromSeconds(1.0), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.Zero); // t = 1.0
manager.ApplyAnimations();
Assert.AreEqual(100.0f, property1.Value);
blendGroup.SetWeight(0, 10);
blendGroup.SetWeight(1, 1);
Assert.AreEqual(new TimeSpan((long)((1.0f * 10.0f / 11.0f + 2.0f * 1.0f / 11.0f) * TimeSpan.TicksPerSecond)), blendGroup.GetTotalDuration());
manager.Update(TimeSpan.FromSeconds(0.5)); // t = 1.5
manager.ApplyAnimations();
Assert.AreEqual(123.45f, property1.Value);
Assert.AreEqual(AnimationState.Stopped, controller.State);
}
public BlendedAnimationSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
Rectangle bounds = GraphicsService.GraphicsDevice.Viewport.TitleSafeArea;
// Create the animatable object.
_animatableSprite = new AnimatableSprite("SpriteA", SpriteBatch, Logo)
{
Position = new Vector2(bounds.Center.X, bounds.Center.Y / 2.0f),
Color = Color.Red,
};
Vector2FromToByAnimation slowLeftRightAnimation = new Vector2FromToByAnimation
{
TargetProperty = "Position",
From = new Vector2(bounds.Left + 100, bounds.Top + 200),
To = new Vector2(bounds.Right - 100, bounds.Top + 200),
Duration = TimeSpan.FromSeconds(4),
EasingFunction = new HermiteEase {
Mode = EasingMode.EaseInOut
},
};
ColorKeyFrameAnimation redGreenAnimation = new ColorKeyFrameAnimation
{
TargetProperty = "Color",
EnableInterpolation = true,
};
redGreenAnimation.KeyFrames.Add(new KeyFrame <Color>(TimeSpan.FromSeconds(0), Color.Red));
redGreenAnimation.KeyFrames.Add(new KeyFrame <Color>(TimeSpan.FromSeconds(4), Color.Green));
TimelineGroup animationA = new TimelineGroup
{
slowLeftRightAnimation,
redGreenAnimation,
};
Vector2FromToByAnimation fastLeftRightAnimation = new Vector2FromToByAnimation
{
TargetProperty = "Position",
From = new Vector2(bounds.Left + 100, bounds.Bottom - 200),
To = new Vector2(bounds.Right - 100, bounds.Bottom - 200),
Duration = TimeSpan.FromSeconds(1),
EasingFunction = new HermiteEase {
Mode = EasingMode.EaseInOut
},
};
ColorKeyFrameAnimation blackWhiteAnimation = new ColorKeyFrameAnimation
{
TargetProperty = "Color",
EnableInterpolation = true,
};
blackWhiteAnimation.KeyFrames.Add(new KeyFrame <Color>(TimeSpan.FromSeconds(0), Color.Black));
blackWhiteAnimation.KeyFrames.Add(new KeyFrame <Color>(TimeSpan.FromSeconds(1), Color.White));
TimelineGroup animationB = new TimelineGroup
{
fastLeftRightAnimation,
blackWhiteAnimation,
};
// Create a BlendGroup that blends animationA and animationB.
// The BlendGroup uses the TargetProperty values of the contained animations to
// to match the animations that should be blended:
// slowLeftRightAnimation with fastLeftRightAnimation
// redGreenAnimation with blackWhiteAnimation
_blendedAnimation = new BlendGroup
{
LoopBehavior = LoopBehavior.Oscillate,
Duration = TimeSpan.MaxValue,
};
_blendedAnimation.Add(animationA, 1);
_blendedAnimation.Add(animationB, 0);
_blendedAnimation.SynchronizeDurations();
// Start blended animation.
AnimationService.StartAnimation(_blendedAnimation, _animatableSprite).UpdateAndApply();
}