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osu-lazer/osu.Game.Rulesets.Mania/Edit/ManiaSelectionHandler.cs
2024-06-07 09:01:41 +02:00

127 lines
4.8 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;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Game.Rulesets.Edit;
using osu.Game.Rulesets.Mania.Objects;
using osu.Game.Rulesets.Objects;
using osu.Game.Screens.Edit.Compose.Components;
namespace osu.Game.Rulesets.Mania.Edit
{
public partial class ManiaSelectionHandler : EditorSelectionHandler
{
[Resolved]
private HitObjectComposer composer { get; set; } = null!;
protected override void OnSelectionChanged()
{
base.OnSelectionChanged();
var selectedObjects = SelectedItems.OfType<ManiaHitObject>().ToArray();
SelectionBox.CanFlipX = canFlipX(selectedObjects);
SelectionBox.CanFlipY = canFlipY(selectedObjects);
}
public override bool HandleMovement(MoveSelectionEvent<HitObject> moveEvent)
{
var hitObjectBlueprint = (HitObjectSelectionBlueprint)moveEvent.Blueprint;
int lastColumn = ((ManiaHitObject)hitObjectBlueprint.Item).Column;
performColumnMovement(lastColumn, moveEvent);
return true;
}
public override bool HandleFlip(Direction direction, bool flipOverOrigin)
{
var selectedObjects = SelectedItems.OfType<ManiaHitObject>().ToArray();
var maniaPlayfield = ((ManiaHitObjectComposer)composer).Playfield;
if (selectedObjects.Length == 0)
return false;
switch (direction)
{
case Direction.Horizontal:
if (!canFlipX(selectedObjects))
return false;
int firstColumn = flipOverOrigin ? 0 : selectedObjects.Min(ho => ho.Column);
int lastColumn = flipOverOrigin ? (int)EditorBeatmap.BeatmapInfo.Difficulty.CircleSize - 1 : selectedObjects.Max(ho => ho.Column);
EditorBeatmap.PerformOnSelection(hitObject =>
{
var maniaObject = (ManiaHitObject)hitObject;
maniaPlayfield.Remove(maniaObject);
maniaObject.Column = firstColumn + (lastColumn - maniaObject.Column);
maniaPlayfield.Add(maniaObject);
});
return true;
case Direction.Vertical:
if (!canFlipY(selectedObjects))
return false;
double selectionStartTime = selectedObjects.Min(ho => ho.StartTime);
double selectionEndTime = selectedObjects.Max(ho => ho.GetEndTime());
EditorBeatmap.PerformOnSelection(hitObject =>
{
hitObject.StartTime = selectionStartTime + (selectionEndTime - hitObject.GetEndTime());
});
return true;
default:
throw new ArgumentOutOfRangeException(nameof(direction), direction, "Cannot flip over the supplied direction.");
}
}
private static bool canFlipX(ManiaHitObject[] selectedObjects)
=> selectedObjects.Select(ho => ho.Column).Distinct().Count() > 1;
private static bool canFlipY(ManiaHitObject[] selectedObjects)
=> selectedObjects.Length > 1 && selectedObjects.Min(ho => ho.StartTime) < selectedObjects.Max(ho => ho.GetEndTime());
private void performColumnMovement(int lastColumn, MoveSelectionEvent<HitObject> moveEvent)
{
var maniaPlayfield = ((ManiaHitObjectComposer)composer).Playfield;
var currentColumn = maniaPlayfield.GetColumnByPosition(moveEvent.Blueprint.ScreenSpaceSelectionPoint + moveEvent.ScreenSpaceDelta);
if (currentColumn == null)
return;
int columnDelta = currentColumn.Index - lastColumn;
if (columnDelta == 0)
return;
int minColumn = int.MaxValue;
int maxColumn = int.MinValue;
// find min/max in an initial pass before actually performing the movement.
foreach (var obj in EditorBeatmap.SelectedHitObjects.OfType<ManiaHitObject>())
{
if (obj.Column < minColumn)
minColumn = obj.Column;
if (obj.Column > maxColumn)
maxColumn = obj.Column;
}
columnDelta = Math.Clamp(columnDelta, -minColumn, maniaPlayfield.TotalColumns - 1 - maxColumn);
EditorBeatmap.PerformOnSelection(h =>
{
maniaPlayfield.Remove(h);
((ManiaHitObject)h).Column += columnDelta;
maniaPlayfield.Add(h);
});
}
}
}