public void KeyFramesTest()
{
var f = EasingFunctions.BuildFunctionUsingKeyFrames(
new[]
{
new KeyFrame {
Time = 0, Value = 0, EasingFunction = EasingFunctions.Lineal
},
new KeyFrame {
Time = 0.5f, Value = 1, EasingFunction = EasingFunctions.Lineal
},
new KeyFrame {
Time = 1, Value = 0, EasingFunction = EasingFunctions.Lineal
},
});
var r = new[] { 0, 0.2f, 0.4f, 0.6f, 0.8f, 1, 0.8f, 0.6f, 0.4f, 0.2f, 0 };
var i = 0;
for (float t = 0; t <= 1; t += 0.1f)
{
var p = f(t);
Assert.IsTrue(Math.Abs(p - r[i++]) < 0.000001);
}
f = EasingFunctions.BuildFunctionUsingKeyFrames(
new[]
{
new KeyFrame {
Time = 0, Value = 0, EasingFunction = EasingFunctions.Lineal
},
new KeyFrame {
Time = 0.30f, Value = 0, EasingFunction = EasingFunctions.Lineal
},
new KeyFrame {
Time = 0.80f, Value = 1, EasingFunction = EasingFunctions.Lineal
},
new KeyFrame {
Time = 1, Value = 1, EasingFunction = EasingFunctions.Lineal
},
});
r = new[] { 0, 0, 0, 0, 0.2f, 0.4f, 0.6f, 0.8f, 1, 1 };
i = 0;
for (float t = 0; t <= 1; t += 0.1f)
{
var p = f(t);
Assert.IsTrue(Math.Abs(p - r[i++]) < 0.000001);
}
}