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osu-lazer/osu.Game/Screens/Menu/IntroScreen.cs
2020-01-09 13:43:44 +09:00

180 lines
5.7 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 osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Audio.Sample;
using osu.Framework.Audio.Track;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Utils;
using osu.Framework.Screens;
using osu.Game.Beatmaps;
using osu.Game.Configuration;
using osu.Game.IO.Archives;
using osu.Game.Screens.Backgrounds;
using osu.Game.Skinning;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Screens.Menu
{
public abstract class IntroScreen : StartupScreen
{
/// <summary>
/// Whether we have loaded the menu previously.
/// </summary>
public bool DidLoadMenu { get; private set; }
/// <summary>
/// A hash used to find the associated beatmap if already imported.
/// </summary>
protected abstract string BeatmapHash { get; }
/// <summary>
/// A source file to use as an import source if the intro beatmap is not yet present.
/// Should be within the "Tracks" namespace of game resources.
/// </summary>
protected abstract string BeatmapFile { get; }
protected IBindable<bool> MenuVoice { get; private set; }
protected IBindable<bool> MenuMusic { get; private set; }
private WorkingBeatmap introBeatmap;
protected Track Track { get; private set; }
private readonly BindableDouble exitingVolumeFade = new BindableDouble(1);
private const int exit_delay = 3000;
private SampleChannel seeya;
private LeasedBindable<WorkingBeatmap> beatmap;
private MainMenu mainMenu;
[Resolved]
private AudioManager audio { get; set; }
[BackgroundDependencyLoader]
private void load(OsuConfigManager config, SkinManager skinManager, BeatmapManager beatmaps, Framework.Game game)
{
// prevent user from changing beatmap while the intro is still runnning.
beatmap = Beatmap.BeginLease(false);
MenuVoice = config.GetBindable<bool>(OsuSetting.MenuVoice);
MenuMusic = config.GetBindable<bool>(OsuSetting.MenuMusic);
seeya = audio.Samples.Get(@"seeya");
BeatmapSetInfo setInfo = null;
if (!MenuMusic.Value)
{
var sets = beatmaps.GetAllUsableBeatmapSets();
if (sets.Count > 0)
setInfo = beatmaps.QueryBeatmapSet(s => s.ID == sets[RNG.Next(0, sets.Count - 1)].ID);
}
if (setInfo == null)
{
setInfo = beatmaps.QueryBeatmapSet(b => b.Hash == BeatmapHash);
if (setInfo == null)
{
// we need to import the default menu background beatmap
setInfo = beatmaps.Import(new ZipArchiveReader(game.Resources.GetStream($"Tracks/{BeatmapFile}"), BeatmapFile)).Result;
setInfo.Protected = true;
beatmaps.Update(setInfo);
}
}
introBeatmap = beatmaps.GetWorkingBeatmap(setInfo.Beatmaps[0]);
Track = introBeatmap.Track;
}
public override bool OnExiting(IScreen next) => !DidLoadMenu;
public override void OnResuming(IScreen last)
{
this.FadeIn(300);
double fadeOutTime = exit_delay;
//we also handle the exit transition.
if (MenuVoice.Value)
seeya.Play();
else
fadeOutTime = 500;
audio.AddAdjustment(AdjustableProperty.Volume, exitingVolumeFade);
this.TransformBindableTo(exitingVolumeFade, 0, fadeOutTime).OnComplete(_ => this.Exit());
//don't want to fade out completely else we will stop running updates.
Game.FadeTo(0.01f, fadeOutTime);
base.OnResuming(last);
}
public override void OnSuspending(IScreen next)
{
base.OnSuspending(next);
Track = null;
}
protected override BackgroundScreen CreateBackground() => new BackgroundScreenBlack();
protected void StartTrack()
{
// Only start the current track if it is the menu music. A beatmap's track is started when entering the Main Menu.
if (MenuMusic.Value)
Track.Restart();
}
protected override void LogoArriving(OsuLogo logo, bool resuming)
{
base.LogoArriving(logo, resuming);
logo.Colour = Color4.White;
logo.Triangles = false;
logo.Ripple = false;
if (!resuming)
{
beatmap.Value = introBeatmap;
introBeatmap = null;
logo.MoveTo(new Vector2(0.5f));
logo.ScaleTo(Vector2.One);
logo.Hide();
}
else
{
const int quick_appear = 350;
var initialMovementTime = logo.Alpha > 0.2f ? quick_appear : 0;
logo.MoveTo(new Vector2(0.5f), initialMovementTime, Easing.OutQuint);
logo
.ScaleTo(1, initialMovementTime, Easing.OutQuint)
.FadeIn(quick_appear, Easing.OutQuint)
.Then()
.RotateTo(20, exit_delay * 1.5f)
.FadeOut(exit_delay);
}
}
protected void PrepareMenuLoad() => LoadComponentAsync(mainMenu = new MainMenu());
protected void LoadMenu()
{
beatmap.Return();
DidLoadMenu = true;
this.Push(mainMenu);
}
}
}