osu/osu.Game/Screens/Play/SongProgressGraph.cs

50 lines
1.4 KiB
C#

// 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 System.Collections.Generic;
using System.Diagnostics;
using osu.Game.Rulesets.Objects;
namespace osu.Game.Screens.Play
{
public class SongProgressGraph : SquareGraph
{
private IEnumerable<HitObject> objects;
public IEnumerable<HitObject> Objects
{
set
{
objects = value;
const int granularity = 200;
Values = new int[granularity];
if (!objects.Any())
return;
var firstHit = objects.First().StartTime;
var lastHit = objects.Max(o => o.GetEndTime());
if (lastHit == 0)
lastHit = objects.Last().StartTime;
var interval = (lastHit - firstHit + 1) / granularity;
foreach (var h in objects)
{
var endTime = h.GetEndTime();
Debug.Assert(endTime >= h.StartTime);
int startRange = (int)((h.StartTime - firstHit) / interval);
int endRange = (int)((endTime - firstHit) / interval);
for (int i = startRange; i <= endRange; i++)
Values[i]++;
}
}
}
}
}