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Limit distance snap between two adjacent hit objects (#6740)

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Limit distance snap between two adjacent hit objects
This commit is contained in:
Dean Herbert
2019-11-06 17:18:00 +09:00
committed by GitHub
parent ff6bfc453b b83ceab1c1
commit a2963b66f6
6 changed files with 122 additions and 43 deletions
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12
osu.Game/Screens/Edit/Compose/Components/CircularDistanceSnapGrid.cs
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@ -12,8 +12,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
{
public abstract class CircularDistanceSnapGrid : DistanceSnapGrid
{
protected CircularDistanceSnapGrid(HitObject hitObject, Vector2 centrePosition)
: base(hitObject, centrePosition)
protected CircularDistanceSnapGrid(HitObject hitObject, HitObject nextHitObject, Vector2 centrePosition)
: base(hitObject, nextHitObject, centrePosition)
{
}
@ -45,7 +45,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
float dx = Math.Max(centrePosition.X, DrawWidth - centrePosition.X);
float dy = Math.Max(centrePosition.Y, DrawHeight - centrePosition.Y);
float maxDistance = new Vector2(dx, dy).Length;
int requiredCircles = (int)(maxDistance / DistanceSpacing);
int requiredCircles = Math.Min(MaxIntervals, (int)(maxDistance / DistanceSpacing));
for (int i = 0; i < requiredCircles; i++)
{
@ -65,15 +65,17 @@ namespace osu.Game.Screens.Edit.Compose.Components
public override (Vector2 position, double time) GetSnappedPosition(Vector2 position)
{
Vector2 direction = position - CentrePosition;
if (MaxIntervals == 0)
return (CentrePosition, StartTime);
Vector2 direction = position - CentrePosition;
if (direction == Vector2.Zero)
direction = new Vector2(0.001f, 0.001f);
float distance = direction.Length;
float radius = DistanceSpacing;
int radialCount = Math.Max(1, (int)Math.Round(distance / radius));
int radialCount = MathHelper.Clamp((int)Math.Round(distance / radius), 1, MaxIntervals);
Vector2 normalisedDirection = direction * new Vector2(1f / distance);
Vector2 snappedPosition = CentrePosition + normalisedDirection * radialCount * radius;

21
osu.Game/Screens/Edit/Compose/Components/DistanceSnapGrid.cs
View File

@ -1,6 +1,7 @@
// 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 JetBrains.Annotations;
using osu.Framework.Allocation;
using osu.Framework.Caching;
using osu.Framework.Graphics;
@ -29,6 +30,11 @@ namespace osu.Game.Screens.Edit.Compose.Components
/// </summary>
protected double StartTime { get; private set; }
/// <summary>
/// The maximum number of distance snapping intervals allowed.
/// </summary>
protected int MaxIntervals { get; private set; }
/// <summary>
/// The position which the grid is centred on.
/// The first beat snapping tick is located at <see cref="CentrePosition"/> + <see cref="DistanceSpacing"/> in the desired direction.
@ -49,12 +55,15 @@ namespace osu.Game.Screens.Edit.Compose.Components
private readonly Cached gridCache = new Cached();
private readonly HitObject hitObject;
private readonly HitObject nextHitObject;
protected DistanceSnapGrid(HitObject hitObject, Vector2 centrePosition)
protected DistanceSnapGrid(HitObject hitObject, [CanBeNull] HitObject nextHitObject, Vector2 centrePosition)
{
this.hitObject = hitObject;
this.nextHitObject = nextHitObject;
CentrePosition = centrePosition;
RelativeSizeAxes = Axes.Both;
}
@ -74,6 +83,16 @@ namespace osu.Game.Screens.Edit.Compose.Components
private void updateSpacing()
{
DistanceSpacing = SnapProvider.GetBeatSnapDistanceAt(StartTime);
if (nextHitObject == null)
MaxIntervals = int.MaxValue;
else
{
// +1 is added since a snapped hitobject may have its start time slightly less than the snapped time due to floating point errors
double maxDuration = nextHitObject.StartTime - StartTime + 1;
MaxIntervals = (int)(maxDuration / SnapProvider.DistanceToDuration(StartTime, DistanceSpacing));
}
gridCache.Invalidate();
}