public void ProcessAnimations_ShouldNotAdvancePositionOfSpriteAnimationComponent_WhenThereIsNoCurrentAnimation()
{
// Arrange
var builder = new AnimationSceneBuilder();
var spriteAnimationComponent = builder.AddSpriteAnimationComponent();
spriteAnimationComponent.AddAnimation("anim", CreateAnimation(TimeSpan.FromMilliseconds(20)));
var scene = builder.Build();
// Assume
Assume.That(spriteAnimationComponent.Position, Is.Zero);
// Act
_animationSystem.ProcessAnimations(scene, new GameTime(TimeSpan.FromMilliseconds(10)));
// Assert
Assert.That(spriteAnimationComponent.Position, Is.Zero);
}
public void ProcessAnimations_ShouldAdvancePositionOfSpriteAnimationComponent(int animationDuration, int deltaTime, double playbackSpeed,
double initialPosition, double expectedPosition)
{
// Arrange
var builder = new AnimationSceneBuilder();
var spriteAnimationComponent = builder.AddSpriteAnimationComponent();
spriteAnimationComponent.AddAnimation("anim", CreateAnimation(TimeSpan.FromMilliseconds(animationDuration)));
var scene = builder.Build();
spriteAnimationComponent.PlayAnimation("anim");
spriteAnimationComponent.PlaybackSpeed = playbackSpeed;
spriteAnimationComponent.Position = initialPosition;
// Act
_animationSystem.ProcessAnimations(scene, new GameTime(TimeSpan.FromMilliseconds(deltaTime)));
// Assert
Assert.That(spriteAnimationComponent.Position, Is.EqualTo(expectedPosition));
}
ProcessAnimations_ShouldAdvancePositionOfSpriteAnimationComponentToTheEndAndContinuePlayingFromBeginningAndNotifyWithEvent_WhenAnimationPlayedInLoop(
int deltaTime)
{
// Arrange
var builder = new AnimationSceneBuilder();
var spriteAnimationComponent = builder.AddSpriteAnimationComponent();
var spriteAnimation = CreateAnimation(TimeSpan.FromMilliseconds(100));
spriteAnimationComponent.AddAnimation("anim", spriteAnimation);
var scene = builder.Build();
spriteAnimationComponent.PlayAnimation("anim");
spriteAnimationComponent.Position = 0.8;
spriteAnimationComponent.PlayInLoop = true;
object?eventSender = null;
SpriteAnimationCompletedEventArgs?eventArgs = null;
spriteAnimationComponent.AnimationCompleted += (sender, args) =>
{
eventSender = sender;
eventArgs = args;
};
// Act
_animationSystem.ProcessAnimations(scene, new GameTime(TimeSpan.FromMilliseconds(deltaTime)));
// Assert
Assert.That(spriteAnimationComponent.Position, Is.EqualTo(0.3).Within(1e-15));
Assert.That(spriteAnimationComponent.IsPlaying, Is.True);
Assert.That(eventSender, Is.Not.Null, "Event sender is null.");
Assert.That(eventSender, Is.EqualTo(spriteAnimationComponent));
Assert.That(eventArgs, Is.Not.Null, "Event args are null.");
Debug.Assert(eventArgs != null, nameof(eventArgs) + " != null");
Assert.That(eventArgs.AnimationName, Is.EqualTo("anim"));
Assert.That(eventArgs.Animation, Is.EqualTo(spriteAnimation));
}
public void ProcessAnimations_ShouldInvokeAnimationCompletedAfterAdvancingPosition_WhenAnimationEnded()
{
// Arrange
var builder = new AnimationSceneBuilder();
var spriteAnimationComponent = builder.AddSpriteAnimationComponent();
var spriteAnimation = CreateAnimation(TimeSpan.FromMilliseconds(100));
spriteAnimationComponent.AddAnimation("anim", spriteAnimation);
var scene = builder.Build();
spriteAnimationComponent.PlayAnimation("anim");
spriteAnimationComponent.Position = 0.8;
spriteAnimationComponent.AnimationCompleted += (sender, args) => { spriteAnimationComponent.PlayAnimation("anim"); };
// Act
_animationSystem.ProcessAnimations(scene, new GameTime(TimeSpan.FromMilliseconds(50)));
// Assert
Assert.That(spriteAnimationComponent.Position, Is.EqualTo(0.0));
Assert.That(spriteAnimationComponent.IsPlaying, Is.True);
}
public void ProcessAnimations_ShouldAdvancePositionOfSpriteAnimationComponentToTheEndAndStopAnimationAndNotifyWithEvent()
{
// Arrange
var builder = new AnimationSceneBuilder();
var spriteAnimationComponent = builder.AddSpriteAnimationComponent();
var spriteAnimation = CreateAnimation(TimeSpan.FromMilliseconds(100));
spriteAnimationComponent.AddAnimation("anim", spriteAnimation);
var scene = builder.Build();
spriteAnimationComponent.PlayAnimation("anim");
spriteAnimationComponent.Position = 0.8;
object?eventSender = null;
SpriteAnimationCompletedEventArgs?eventArgs = null;
spriteAnimationComponent.AnimationCompleted += (sender, args) =>
{
eventSender = sender;
eventArgs = args;
};
// Act
_animationSystem.ProcessAnimations(scene, new GameTime(TimeSpan.FromMilliseconds(50)));
// Assert
Assert.That(spriteAnimationComponent.Position, Is.EqualTo(1.0));
Assert.That(spriteAnimationComponent.IsPlaying, Is.False);
Assert.That(eventSender, Is.Not.Null, "Event sender is null.");
Assert.That(eventSender, Is.EqualTo(spriteAnimationComponent));
Assert.That(eventArgs, Is.Not.Null, "Event args are null.");
Debug.Assert(eventArgs != null, nameof(eventArgs) + " != null");
Assert.That(eventArgs.AnimationName, Is.EqualTo("anim"));
Assert.That(eventArgs.Animation, Is.EqualTo(spriteAnimation));
}