osu/osu.Game/Storyboards/Storyboard.cs

64 lines
2.5 KiB
C#

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Game.Beatmaps;
using osu.Game.Storyboards.Drawables;
using System.Collections.Generic;
using System.Linq;
namespace osu.Game.Storyboards
{
public class Storyboard
{
private readonly Dictionary<string, StoryboardLayer> layers = new Dictionary<string, StoryboardLayer>();
public IEnumerable<StoryboardLayer> Layers => layers.Values;
public bool HasDrawable => Layers.Any(l => l.Elements.Any(e => e.IsDrawable));
public Storyboard()
{
layers.Add("Background", new StoryboardLayer("Background", 3));
layers.Add("Fail", new StoryboardLayer("Fail", 2) { EnabledWhenPassing = false, });
layers.Add("Pass", new StoryboardLayer("Pass", 1) { EnabledWhenFailing = false, });
layers.Add("Foreground", new StoryboardLayer("Foreground", 0));
}
public StoryboardLayer GetLayer(string name)
{
StoryboardLayer layer;
if (!layers.TryGetValue(name, out layer))
layers[name] = layer = new StoryboardLayer(name, layers.Values.Min(l => l.Depth) - 1);
return layer;
}
/// <summary>
/// Whether the beatmap's background should be hidden while this storyboard is being displayed.
/// </summary>
public bool ReplacesBackground(BeatmapInfo beatmapInfo)
{
var backgroundPath = beatmapInfo.BeatmapSet?.Metadata?.BackgroundFile?.ToLowerInvariant();
if (backgroundPath == null)
return false;
return GetLayer("Background").Elements.Any(e => e.Path.ToLowerInvariant() == backgroundPath);
}
public float AspectRatio(BeatmapInfo beatmapInfo)
=> beatmapInfo.WidescreenStoryboard ? 16 / 9f : 4 / 3f;
public DrawableStoryboard CreateDrawable(WorkingBeatmap working = null)
{
var drawable = new DrawableStoryboard(this);
if (working != null)
{
var beatmapInfo = working.Beatmap.BeatmapInfo;
drawable.Width = drawable.Height * AspectRatio(beatmapInfo);
if (!ReplacesBackground(beatmapInfo))
drawable.BackgroundTexture = working.Background;
}
return drawable;
}
}
}