public override void Update(GameTime gameTime)
{
// <Up> --> Increase blend weight of first animation.
if (InputService.IsDown(Keys.Up))
{
float weight = _blendedAnimation.GetWeight(0);
weight += 1 * (float)gameTime.ElapsedGameTime.TotalSeconds;
if (weight > 1)
{
weight = 1;
}
_blendedAnimation.SetWeight(0, weight);
_blendedAnimation.SetWeight(1, 1 - weight);
}
// <Down> --> Increase blend weight of second animation.
if (InputService.IsDown(Keys.Down))
{
float weight = _blendedAnimation.GetWeight(0);
weight -= 1 * (float)gameTime.ElapsedGameTime.TotalSeconds;
if (weight < 0)
{
weight = 0;
}
_blendedAnimation.SetWeight(0, weight);
_blendedAnimation.SetWeight(1, 1 - weight);
}
base.Update(gameTime);
}
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 EmptyBlendGroup()
{
var property1 = new AnimatableProperty <float>();
var blendGroup = new BlendGroup();
Assert.That(() => blendGroup.GetWeight(0), Throws.TypeOf <ArgumentOutOfRangeException>());
Assert.That(() => blendGroup.SetWeight(0, 1.0f), Throws.TypeOf <ArgumentOutOfRangeException>());
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
manager.Update(TimeSpan.Zero);
manager.ApplyAnimations();
Assert.AreEqual(AnimationState.Stopped, controller.State);
blendGroup.SynchronizeDurations();
blendGroup.Clear();
controller = manager.StartAnimation(blendGroup, property1);
manager.Update(TimeSpan.Zero);
manager.ApplyAnimations();
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 EmptyBlendGroup()
{
var property1 = new AnimatableProperty<float>();
var blendGroup = new BlendGroup();
Assert.That(() => blendGroup.GetWeight(0), Throws.TypeOf<ArgumentOutOfRangeException>());
Assert.That(() => blendGroup.SetWeight(0, 1.0f), Throws.TypeOf<ArgumentOutOfRangeException>());
var manager = new AnimationManager();
var controller = manager.StartAnimation(blendGroup, property1);
manager.Update(TimeSpan.Zero);
manager.ApplyAnimations();
Assert.AreEqual(AnimationState.Stopped, controller.State);
blendGroup.SynchronizeDurations();
blendGroup.Clear();
controller = manager.StartAnimation(blendGroup, property1);
manager.Update(TimeSpan.Zero);
manager.ApplyAnimations();
Assert.AreEqual(AnimationState.Stopped, controller.State);
}
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);
}