osu/osu.Game/Screens/Loader.cs

121 lines
3.8 KiB
C#

// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Shaders;
using osu.Game.Screens.Menu;
using OpenTK;
using osu.Framework.Screens;
namespace osu.Game.Screens
{
public class Loader : OsuScreen
{
private bool showDisclaimer;
protected override bool HideOverlaysOnEnter => true;
protected override bool AllowBackButton => false;
public Loader()
{
ValidForResume = false;
}
protected override void LogoArriving(OsuLogo logo, bool resuming)
{
base.LogoArriving(logo, resuming);
logo.Triangles = false;
logo.Origin = Anchor.BottomRight;
logo.Anchor = Anchor.BottomRight;
logo.Position = new Vector2(-40);
logo.Scale = new Vector2(0.2f);
logo.FadeInFromZero(5000, Easing.OutQuint);
}
private OsuScreen loadScreen;
private ShaderPrecompiler precompiler;
protected override void OnEntering(Screen last)
{
base.OnEntering(last);
LoadComponentAsync(precompiler = new ShaderPrecompiler(loadIfReady), Add);
LoadComponentAsync(loadScreen = showDisclaimer ? (OsuScreen)new Disclaimer() : new Intro(), s => loadIfReady());
}
private void loadIfReady()
{
if (ChildScreen == loadScreen) return;
if (loadScreen.LoadState != LoadState.Ready)
return;
if (!precompiler.FinishedCompiling)
return;
Push(loadScreen);
}
protected override void LogoSuspending(OsuLogo logo)
{
base.LogoSuspending(logo);
logo.FadeOut(100);
}
[BackgroundDependencyLoader]
private void load(OsuGameBase game)
{
showDisclaimer = game.IsDeployedBuild;
}
/// <summary>
/// Compiles a set of shaders before continuing. Attempts to draw some frames between compilation by limiting to one compile per draw frame.
/// </summary>
public class ShaderPrecompiler : Drawable
{
private readonly Action onLoaded;
private readonly List<Shader> loadTargets = new List<Shader>();
public bool FinishedCompiling { get; private set; }
public ShaderPrecompiler(Action onLoaded)
{
this.onLoaded = onLoaded;
}
[BackgroundDependencyLoader]
private void load(ShaderManager manager)
{
loadTargets.Add(manager.Load(VertexShaderDescriptor.TEXTURE_2, FragmentShaderDescriptor.TEXTURE_ROUNDED));
loadTargets.Add(manager.Load(VertexShaderDescriptor.TEXTURE_2, FragmentShaderDescriptor.BLUR));
loadTargets.Add(manager.Load(VertexShaderDescriptor.TEXTURE_2, FragmentShaderDescriptor.TEXTURE));
loadTargets.Add(manager.Load(@"CursorTrail", FragmentShaderDescriptor.TEXTURE));
loadTargets.Add(manager.Load(VertexShaderDescriptor.TEXTURE_3, FragmentShaderDescriptor.TEXTURE_ROUNDED));
loadTargets.Add(manager.Load(VertexShaderDescriptor.TEXTURE_3, FragmentShaderDescriptor.TEXTURE));
}
protected override void Update()
{
base.Update();
// if our target is null we are done.
if (loadTargets.All(s => s.Loaded))
{
FinishedCompiling = true;
Expire();
onLoaded?.Invoke();
}
}
}
}
}