osu/osu.Game.Tests/Beatmaps/SliderEventGenerationTest.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Linq;
using NUnit.Framework;
using osu.Game.Rulesets.Objects;
namespace osu.Game.Tests.Beatmaps
{
[TestFixture]
public class SliderEventGenerationTest
{
private const double start_time = 0;
private const double span_duration = 1000;
[Test]
public void TestSingleSpan()
{
var events = SliderEventGenerator.Generate(start_time, span_duration, 1, span_duration / 2, span_duration, 1).ToArray();
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Assert.That(events[0].Type, Is.EqualTo(SliderEventType.Head));
Assert.That(events[0].Time, Is.EqualTo(start_time));
Assert.That(events[1].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[1].Time, Is.EqualTo(span_duration / 2));
Assert.That(events[3].Type, Is.EqualTo(SliderEventType.Tail));
Assert.That(events[3].Time, Is.EqualTo(span_duration));
}
[Test]
public void TestRepeat()
{
var events = SliderEventGenerator.Generate(start_time, span_duration, 1, span_duration / 2, span_duration, 2).ToArray();
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Assert.That(events[0].Type, Is.EqualTo(SliderEventType.Head));
Assert.That(events[0].Time, Is.EqualTo(start_time));
Assert.That(events[1].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[1].Time, Is.EqualTo(span_duration / 2));
Assert.That(events[2].Type, Is.EqualTo(SliderEventType.Repeat));
Assert.That(events[2].Time, Is.EqualTo(span_duration));
Assert.That(events[3].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[3].Time, Is.EqualTo(span_duration + span_duration / 2));
Assert.That(events[5].Type, Is.EqualTo(SliderEventType.Tail));
Assert.That(events[5].Time, Is.EqualTo(2 * span_duration));
}
[Test]
public void TestNonEvenTicks()
{
var events = SliderEventGenerator.Generate(start_time, span_duration, 1, 300, span_duration, 2).ToArray();
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Assert.That(events[0].Type, Is.EqualTo(SliderEventType.Head));
Assert.That(events[0].Time, Is.EqualTo(start_time));
Assert.That(events[1].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[1].Time, Is.EqualTo(300));
Assert.That(events[2].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[2].Time, Is.EqualTo(600));
Assert.That(events[3].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[3].Time, Is.EqualTo(900));
Assert.That(events[4].Type, Is.EqualTo(SliderEventType.Repeat));
Assert.That(events[4].Time, Is.EqualTo(span_duration));
Assert.That(events[5].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[5].Time, Is.EqualTo(1100));
Assert.That(events[6].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[6].Time, Is.EqualTo(1400));
Assert.That(events[7].Type, Is.EqualTo(SliderEventType.Tick));
Assert.That(events[7].Time, Is.EqualTo(1700));
Assert.That(events[9].Type, Is.EqualTo(SliderEventType.Tail));
Assert.That(events[9].Time, Is.EqualTo(2 * span_duration));
}
[Test]
public void TestLastTickOffset()
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{
var events = SliderEventGenerator.Generate(start_time, span_duration, 1, span_duration / 2, span_duration, 1).ToArray();
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Assert.That(events[2].Type, Is.EqualTo(SliderEventType.LegacyLastTick));
Assert.That(events[2].Time, Is.EqualTo(span_duration + SliderEventGenerator.TAIL_LENIENCY));
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}
[Test]
public void TestMinimumTickDistance()
{
const double velocity = 5;
const double min_distance = velocity * 10;
var events = SliderEventGenerator.Generate(start_time, span_duration, velocity, velocity, span_duration, 2).ToArray();
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Assert.Multiple(() =>
{
int tickIndex = -1;
while (++tickIndex < events.Length)
{
if (events[tickIndex].Type != SliderEventType.Tick)
continue;
Assert.That(events[tickIndex].Time, Is.LessThan(span_duration - min_distance).Or.GreaterThan(span_duration + min_distance));
}
});
}
}
}