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osu-lazer/osu.Game/Graphics/Containers/ParallaxContainer.cs
2017-05-15 10:56:27 +09:00

70 lines
2.2 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.Framework.Graphics.Containers;
using osu.Framework.Graphics;
using osu.Framework.Input;
using OpenTK;
using osu.Framework.Allocation;
using osu.Game.Configuration;
using osu.Framework.Configuration;
namespace osu.Game.Graphics.Containers
{
internal class ParallaxContainer : Container, IRequireHighFrequencyMousePosition
{
public float ParallaxAmount = 0.02f;
private Bindable<bool> parallaxEnabled;
public ParallaxContainer()
{
AlwaysReceiveInput = true;
RelativeSizeAxes = Axes.Both;
AddInternal(content = new Container
{
RelativeSizeAxes = Axes.Both,
Anchor = Anchor.Centre,
Origin = Anchor.Centre
});
}
private readonly Container content;
private InputManager input;
protected override Container<Drawable> Content => content;
[BackgroundDependencyLoader]
private void load(UserInputManager input, OsuConfigManager config)
{
this.input = input;
parallaxEnabled = config.GetBindable<bool>(OsuSetting.MenuParallax);
parallaxEnabled.ValueChanged += delegate
{
if (!parallaxEnabled)
{
content.MoveTo(Vector2.Zero, firstUpdate ? 0 : 1000, EasingTypes.OutQuint);
content.Scale = new Vector2(1 + ParallaxAmount);
}
};
}
private bool firstUpdate = true;
protected override void Update()
{
base.Update();
if (parallaxEnabled)
{
Vector2 offset = input.CurrentState.Mouse == null ? Vector2.Zero : ToLocalSpace(input.CurrentState.Mouse.NativeState.Position) - DrawSize / 2;
content.MoveTo(offset * ParallaxAmount, firstUpdate ? 0 : 1000, EasingTypes.OutQuint);
content.Scale = new Vector2(1 + ParallaxAmount);
}
firstUpdate = false;
}
}
}