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osu-lazer/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.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.
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using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
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using System;
using System.Collections.Generic;
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using System.Linq;
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using osu.Framework.Allocation;
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using osu.Game.Rulesets.Mania.Beatmaps;
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using osu.Game.Rulesets.Mania.Objects;
using osu.Game.Rulesets.Objects.Drawables;
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using osu.Game.Rulesets.UI.Scrolling;
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using osuTK;
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namespace osu.Game.Rulesets.Mania.UI
{
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[Cached]
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public class ManiaPlayfield : ScrollingPlayfield
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{
public IReadOnlyList<Stage> Stages => stages;
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private readonly List<Stage> stages = new List<Stage>();
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => stages.Any(s => s.ReceivePositionalInputAt(screenSpacePos));
public ManiaPlayfield(List<StageDefinition> stageDefinitions)
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{
if (stageDefinitions == null)
throw new ArgumentNullException(nameof(stageDefinitions));
if (stageDefinitions.Count <= 0)
throw new ArgumentException("Can't have zero or fewer stages.");
GridContainer playfieldGrid;
AddInternal(playfieldGrid = new GridContainer
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{
RelativeSizeAxes = Axes.Both,
Content = new[] { new Drawable[stageDefinitions.Count] }
});
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var normalColumnAction = ManiaAction.Key1;
var specialColumnAction = ManiaAction.Special1;
int firstColumnIndex = 0;
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for (int i = 0; i < stageDefinitions.Count; i++)
{
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var newStage = new Stage(firstColumnIndex, stageDefinitions[i], ref normalColumnAction, ref specialColumnAction);
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playfieldGrid.Content[0][i] = newStage;
stages.Add(newStage);
AddNested(newStage);
firstColumnIndex += newStage.Columns.Count;
}
}
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public override void Add(DrawableHitObject h) => getStageByColumn(((ManiaHitObject)h.HitObject).Column).Add(h);
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public override bool Remove(DrawableHitObject h) => getStageByColumn(((ManiaHitObject)h.HitObject).Column).Remove(h);
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public void Add(BarLine barline) => stages.ForEach(s => s.Add(barline));
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/// <summary>
/// Retrieves a column from a screen-space position.
/// </summary>
/// <param name="screenSpacePosition">The screen-space position.</param>
/// <returns>The column which the <paramref name="screenSpacePosition"/> lies in.</returns>
public Column GetColumnByPosition(Vector2 screenSpacePosition)
{
Column found = null;
foreach (var stage in stages)
{
foreach (var column in stage.Columns)
{
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if (column.ReceivePositionalInputAt(new Vector2(screenSpacePosition.X, column.ScreenSpaceDrawQuad.Centre.Y)))
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{
found = column;
break;
}
}
if (found != null)
break;
}
return found;
}
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/// <summary>
/// Retrieves a <see cref="Column"/> by index.
/// </summary>
/// <param name="index">The index of the column.</param>
/// <returns>The <see cref="Column"/> corresponding to the given index.</returns>
/// <exception cref="ArgumentOutOfRangeException">If <paramref name="index"/> is less than 0 or greater than <see cref="TotalColumns"/>.</exception>
public Column GetColumn(int index)
{
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if (index < 0 || index > TotalColumns - 1)
throw new ArgumentOutOfRangeException(nameof(index));
foreach (var stage in stages)
{
if (index >= stage.Columns.Count)
{
index -= stage.Columns.Count;
continue;
}
return stage.Columns[index];
}
throw new ArgumentOutOfRangeException(nameof(index));
}
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/// <summary>
/// Retrieves the total amount of columns across all stages in this playfield.
/// </summary>
public int TotalColumns => stages.Sum(s => s.Columns.Count);
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private Stage getStageByColumn(int column)
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{
int sum = 0;
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foreach (var stage in stages)
{
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sum += stage.Columns.Count;
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if (sum > column)
return stage;
}
return null;
}
}
}