public void SimplePath()
{
var animation = new Path2FAnimation();
animation.Path = new Path2F
{
new PathKey2F {
Parameter = 2.0f, Point = new Vector2F(2.0f, 22.0f), Interpolation = SplineInterpolation.Linear
},
new PathKey2F {
Parameter = 3.0f, Point = new Vector2F(3.0f, 33.0f), Interpolation = SplineInterpolation.Linear
},
new PathKey2F {
Parameter = 4.0f, Point = new Vector2F(4.0f, 44.0f), Interpolation = SplineInterpolation.Linear
},
};
animation.Path.PreLoop = CurveLoopType.Linear;
animation.Path.PostLoop = CurveLoopType.Cycle;
animation.EndParameter = float.PositiveInfinity;
Vector2F defaultSource = new Vector2F(1.0f, 2.0f);
Vector2F defaultTarget = new Vector2F(10.0f, 20.0f);
// Pre-Loop
Assert.AreEqual(new Vector2F(0.0f, 0.0f), animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
Assert.AreEqual(new Vector2F(1.0f, 11.0f), animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
Assert.AreEqual(new Vector2F(2.0f, 22.0f), animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
Assert.AreEqual(new Vector2F(3.0f, 33.0f), animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
Assert.AreEqual(new Vector2F(4.0f, 44.0f), animation.GetValue(TimeSpan.FromSeconds(4.0), defaultSource, defaultTarget));
// Post-Loop
Assert.AreEqual(new Vector2F(3.0f, 33.0f), animation.GetValue(TimeSpan.FromSeconds(5.0), defaultSource, defaultTarget));
}
public void AdditivePath()
{
var animation = new Path2FAnimation();
animation.Path = new Path2F
{
new PathKey2F { Parameter = 2.0f, Point = new Vector2F(2.0f, 22.0f), Interpolation = SplineInterpolation.Linear },
new PathKey2F { Parameter = 3.0f, Point = new Vector2F(3.0f, 33.0f), Interpolation = SplineInterpolation.Linear },
new PathKey2F { Parameter = 4.0f, Point = new Vector2F(4.0f, 44.0f), Interpolation = SplineInterpolation.Linear },
};
animation.Path.PreLoop = CurveLoopType.Linear;
animation.Path.PostLoop = CurveLoopType.Cycle;
animation.IsAdditive = true;
animation.EndParameter = float.PositiveInfinity;
Vector2F defaultSource = new Vector2F(1.0f, 2.0f);
Vector2F defaultTarget = new Vector2F(10.0f, 20.0f);
// Pre-Loop
Assert.AreEqual(defaultSource + new Vector2F(0.0f, 0.0f), animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource + new Vector2F(1.0f, 11.0f), animation.GetValue(TimeSpan.FromSeconds(1.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource + new Vector2F(2.0f, 22.0f), animation.GetValue(TimeSpan.FromSeconds(2.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource + new Vector2F(3.0f, 33.0f), animation.GetValue(TimeSpan.FromSeconds(3.0), defaultSource, defaultTarget));
Assert.AreEqual(defaultSource + new Vector2F(4.0f, 44.0f), animation.GetValue(TimeSpan.FromSeconds(4.0), defaultSource, defaultTarget));
// Post-Loop
Assert.AreEqual(defaultSource + new Vector2F(3.0f, 33.0f), animation.GetValue(TimeSpan.FromSeconds(5.0), defaultSource, defaultTarget));
}
public void GetTotalDurationTest()
{
var animation = new Path2FAnimation();
animation.Path = new Path2F
{
new PathKey2F {
Parameter = 2.0f, Point = new Vector2F(2.0f, 22.0f), Interpolation = SplineInterpolation.Linear
},
new PathKey2F {
Parameter = 3.0f, Point = new Vector2F(3.0f, 33.0f), Interpolation = SplineInterpolation.Linear
},
new PathKey2F {
Parameter = 4.0f, Point = new Vector2F(4.0f, 44.0f), Interpolation = SplineInterpolation.Linear
},
};
animation.Path.PreLoop = CurveLoopType.Linear;
animation.Path.PostLoop = CurveLoopType.Cycle;
animation.EndParameter = float.NaN;
Assert.AreEqual(TimeSpan.FromSeconds(4.0), animation.GetTotalDuration());
animation.EndParameter = float.PositiveInfinity;
Assert.AreEqual(TimeSpan.MaxValue, animation.GetTotalDuration());
}
public void ShouldDoNothingWhenPathIsNull()
{
var animation = new Path2FAnimation();
Vector2F defaultSource = new Vector2F(1.0f, 2.0f);
Vector2F defaultTarget = new Vector2F(10.0f, 20.0f);
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
}
public void ShouldDoNothingWhenPathIsNull()
{
var animation = new Path2FAnimation();
Vector2F defaultSource = new Vector2F(1.0f, 2.0f);
Vector2F defaultTarget = new Vector2F(10.0f, 20.0f);
Assert.AreEqual(defaultSource, animation.GetValue(TimeSpan.FromSeconds(0.0), defaultSource, defaultTarget));
}
public void GetTotalDurationTest()
{
var animation = new Path2FAnimation();
animation.Path = new Path2F
{
new PathKey2F { Parameter = 2.0f, Point = new Vector2F(2.0f, 22.0f), Interpolation = SplineInterpolation.Linear },
new PathKey2F { Parameter = 3.0f, Point = new Vector2F(3.0f, 33.0f), Interpolation = SplineInterpolation.Linear },
new PathKey2F { Parameter = 4.0f, Point = new Vector2F(4.0f, 44.0f), Interpolation = SplineInterpolation.Linear },
};
animation.Path.PreLoop = CurveLoopType.Linear;
animation.Path.PostLoop = CurveLoopType.Cycle;
animation.EndParameter = float.NaN;
Assert.AreEqual(TimeSpan.FromSeconds(4.0), animation.GetTotalDuration());
animation.EndParameter = float.PositiveInfinity;
Assert.AreEqual(TimeSpan.MaxValue, animation.GetTotalDuration());
}
protected override void LoadContent()
{
Rectangle bounds = GraphicsDevice.Viewport.Bounds;
// Create a 2D path.
Path2F path = new Path2F
{
// Path is cyclic.
PreLoop = CurveLoopType.Cycle,
PostLoop = CurveLoopType.Cycle,
// End of path should smoothly interpolate with start of path.
SmoothEnds = true,
};
// The spline type.
SplineInterpolation splineInterpolation = SplineInterpolation.BSpline;
// Add path keys. The parameter of a path key is the time in seconds.
path.Add(new PathKey2F
{
Parameter = 0,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 0.5f,
Point = new Vector2F(bounds.Center.X / 2.0f, 2.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 1.0f,
Point = new Vector2F(bounds.Center.X, 1.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 1.5f,
Point = new Vector2F(3.0f * bounds.Center.X / 2.0f, 2.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 2.0f,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 2.5f,
Point = new Vector2F(bounds.Center.X / 2.0f, 4.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 3.0f,
Point = new Vector2F(bounds.Center.X, 5.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 3.5f,
Point = new Vector2F(3.0f * bounds.Center.X / 2.0f, 4.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 4.0f,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
// Create a path animation using the path.
// (Start at parameter value 0 and loop forever.)
Path2FAnimation pathAnimation = new Path2FAnimation(path)
{
StartParameter = 0,
EndParameter = float.PositiveInfinity,
};
AnimationService.StartAnimation(pathAnimation, _animatablePosition);
base.LoadContent();
}
public PathAnimationSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
Rectangle bounds = GraphicsService.GraphicsDevice.Viewport.Bounds;
// Create a 2D path.
Path2F path = new Path2F
{
// Path is cyclic.
PreLoop = CurveLoopType.Cycle,
PostLoop = CurveLoopType.Cycle,
// End of path should smoothly interpolate with start of path.
SmoothEnds = true,
};
// The spline type.
const SplineInterpolation splineInterpolation = SplineInterpolation.BSpline;
// Add path keys. The parameter of a path key is the time in seconds.
path.Add(new PathKey2F
{
Parameter = 0,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 0.5f,
Point = new Vector2F(bounds.Center.X / 2.0f, 2.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 1.0f,
Point = new Vector2F(bounds.Center.X, 1.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 1.5f,
Point = new Vector2F(3.0f * bounds.Center.X / 2.0f, 2.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 2.0f,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 2.5f,
Point = new Vector2F(bounds.Center.X / 2.0f, 4.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 3.0f,
Point = new Vector2F(bounds.Center.X, 5.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 3.5f,
Point = new Vector2F(3.0f * bounds.Center.X / 2.0f, 4.0f * bounds.Center.Y / 3.0f),
Interpolation = splineInterpolation,
});
path.Add(new PathKey2F
{
Parameter = 4.0f,
Point = new Vector2F(bounds.Center.X, bounds.Center.Y),
Interpolation = splineInterpolation,
});
// Create a path animation using the path.
// (Start at parameter value 0 and loop forever.)
Path2FAnimation pathAnimation = new Path2FAnimation(path)
{
StartParameter = 0,
EndParameter = float.PositiveInfinity,
};
AnimationService.StartAnimation(pathAnimation, _animatablePosition).UpdateAndApply();
}
public void CheckDefaultValues()
{
var animation = new Path2FAnimation();
Assert.IsNull(animation.Path);
}
public void CheckDefaultValues()
{
var animation = new Path2FAnimation();
Assert.IsNull(animation.Path);
}
