RepoMirrors/osu
1
0
Fork 0
mirror of https://github.com/ppy/osu synced 2024-12-14 19:06:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'master' of https://github.com/ppy/osu

Browse Source
This commit is contained in:
KoziLord 2018-05-15 16:02:55 +02:00
commit c44d07e9c6
4 changed files with 27 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyCalculator.cs
View File

@ -36,18 +36,22 @@ namespace osu.Game.Rulesets.Osu.Difficulty
new Speed()
};
double sectionEnd = section_length / TimeRate;
double sectionLength = section_length * TimeRate;
// The first object doesn't generate a strain, so we begin with an incremented section end
double currentSectionEnd = 2 * sectionLength;
foreach (OsuDifficultyHitObject h in beatmap)
{
while (h.BaseObject.StartTime > sectionEnd)
while (h.BaseObject.StartTime > currentSectionEnd)
{
foreach (Skill s in skills)
{
s.SaveCurrentPeak();
s.StartNewSectionFrom(sectionEnd);
s.StartNewSectionFrom(currentSectionEnd);
}
sectionEnd += section_length;
currentSectionEnd += sectionLength;
}
foreach (Skill s in skills)

58
osu.Game.Rulesets.Osu/Difficulty/Preprocessing/OsuDifficultyBeatmap.cs
View File

@ -14,7 +14,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
public class OsuDifficultyBeatmap : IEnumerable<OsuDifficultyHitObject>
{
private readonly IEnumerator<OsuDifficultyHitObject> difficultyObjects;
private readonly Queue<OsuDifficultyHitObject> onScreen = new Queue<OsuDifficultyHitObject>();
/// <summary>
/// Creates an enumerator, which preprocesses a list of <see cref="OsuHitObject"/>s recieved as input, wrapping them as
@ -30,65 +29,16 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
/// <summary>
/// Returns an enumerator that enumerates all <see cref="OsuDifficultyHitObject"/>s in the <see cref="OsuDifficultyBeatmap"/>.
/// The inner loop adds objects that appear on screen into a queue until we need to hit the next object.
/// The outer loop returns objects from this queue one at a time, only after they had to be hit, and should no longer be on screen.
/// This means that we can loop through every object that is on screen at the time when a new one appears,
/// allowing us to determine a reading strain for the object that just appeared.
/// </summary>
public IEnumerator<OsuDifficultyHitObject> GetEnumerator()
{
while (true)
{
// Add upcoming objects to the queue until we have at least one object that had been hit and can be dequeued.
// This means there is always at least one object in the queue unless we reached the end of the map.
do
{
if (!difficultyObjects.MoveNext())
break; // New objects can't be added anymore, but we still need to dequeue and return the ones already on screen.
OsuDifficultyHitObject latest = difficultyObjects.Current;
// Calculate flow values here
foreach (OsuDifficultyHitObject h in onScreen)
{
// ReSharper disable once PossibleNullReferenceException (resharper not smart enough to understand IEnumerator.MoveNext())
h.TimeUntilHit -= latest.DeltaTime;
// Calculate reading strain here
}
onScreen.Enqueue(latest);
}
while (onScreen.Peek().TimeUntilHit > 0); // Keep adding new objects on screen while there is still time before we have to hit the next one.
if (onScreen.Count == 0) break; // We have reached the end of the map and enumerated all the objects.
yield return onScreen.Dequeue(); // Remove and return objects one by one that had to be hit before the latest one appeared.
}
}
public IEnumerator<OsuDifficultyHitObject> GetEnumerator() => difficultyObjects;
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
private IEnumerator<OsuDifficultyHitObject> createDifficultyObjectEnumerator(List<OsuHitObject> objects, double timeRate)
{
// We will process OsuHitObjects in groups of three to form a triangle, so we can calculate an angle for each object.
OsuHitObject[] triangle = new OsuHitObject[3];
// OsuDifficultyHitObject construction requires three components, an extra copy of the first OsuHitObject is used at the beginning.
if (objects.Count > 1)
{
triangle[1] = objects[0]; // This copy will get shifted to the last spot in the triangle.
triangle[0] = objects[0]; // This component corresponds to the real first OsuHitOject.
}
// The final component of the first triangle will be the second OsuHitOject of the map, which forms the first jump.
// The first jump is formed by the first two hitobjects of the map.
// If the map has less than two OsuHitObjects, the enumerator will not return anything.
for (int i = 1; i < objects.Count; ++i)
{
triangle[2] = triangle[1];
triangle[1] = triangle[0];
triangle[0] = objects[i];
yield return new OsuDifficultyHitObject(triangle, timeRate);
}
for (int i = 1; i < objects.Count; i++)
yield return new OsuDifficultyHitObject(objects[i], objects[i - 1], timeRate);
}
}
}

29
osu.Game.Rulesets.Osu/Difficulty/Preprocessing/OsuDifficultyHitObject.cs
View File

@ -13,6 +13,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
/// </summary>
public class OsuDifficultyHitObject
{
private const int normalized_radius = 52;
/// <summary>
/// The <see cref="OsuHitObject"/> this <see cref="OsuDifficultyHitObject"/> refers to.
/// </summary>
@ -28,26 +30,19 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
/// </summary>
public double DeltaTime { get; private set; }
/// <summary>
/// Number of milliseconds until the <see cref="OsuDifficultyHitObject"/> has to be hit.
/// </summary>
public double TimeUntilHit { get; set; }
private const int normalized_radius = 52;
private readonly OsuHitObject lastObject;
private readonly double timeRate;
private readonly OsuHitObject[] t;
/// <summary>
/// Initializes the object calculating extra data required for difficulty calculation.
/// </summary>
public OsuDifficultyHitObject(OsuHitObject[] triangle, double timeRate)
public OsuDifficultyHitObject(OsuHitObject currentObject, OsuHitObject lastObject, double timeRate)
{
this.lastObject = lastObject;
this.timeRate = timeRate;
t = triangle;
BaseObject = t[0];
BaseObject = currentObject;
setDistances();
setTimingValues();
// Calculate angle here
@ -63,10 +58,10 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
scalingFactor *= 1 + smallCircleBonus;
}
Vector2 lastCursorPosition = t[1].StackedPosition;
Vector2 lastCursorPosition = lastObject.StackedPosition;
float lastTravelDistance = 0;
var lastSlider = t[1] as Slider;
var lastSlider = lastObject as Slider;
if (lastSlider != null)
{
computeSliderCursorPosition(lastSlider);
@ -80,8 +75,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
private void setTimingValues()
{
// Every timing inverval is hard capped at the equivalent of 375 BPM streaming speed as a safety measure.
DeltaTime = Math.Max(40, (t[0].StartTime - t[1].StartTime) / timeRate);
TimeUntilHit = 450; // BaseObject.PreEmpt;
DeltaTime = Math.Max(50, (BaseObject.StartTime - lastObject.StartTime) / timeRate);
}
private void computeSliderCursorPosition(Slider slider)
@ -107,7 +101,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
}
});
var scoringTimes = slider.NestedHitObjects.Select(t => t.StartTime);
// Skip the head circle
var scoringTimes = slider.NestedHitObjects.Skip(1).Select(t => t.StartTime);
foreach (var time in scoringTimes)
computeVertex(time);
computeVertex(slider.EndTime);

6
osu.Game/Rulesets/Mods/ModHardRock.cs
View File

@ -19,10 +19,10 @@ namespace osu.Game.Rulesets.Mods
public void ApplyToDifficulty(BeatmapDifficulty difficulty)
{
const float ratio = 1.4f;
difficulty.CircleSize *= 1.3f; // CS uses a custom 1.3 ratio.
difficulty.CircleSize = Math.Min(difficulty.CircleSize * 1.3f, 10.0f); // CS uses a custom 1.3 ratio.
difficulty.ApproachRate = Math.Min(difficulty.ApproachRate * ratio, 10.0f);
difficulty.DrainRate *= ratio;
difficulty.OverallDifficulty *= ratio;
difficulty.DrainRate = Math.Min(difficulty.DrainRate * ratio, 10.0f);
difficulty.OverallDifficulty = Math.Min(difficulty.OverallDifficulty * ratio, 10.0f);
}
}
}