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osu-lazer/osu.Game.Rulesets.Osu/Mods/OsuModFlashlight.cs
2022-01-24 21:03:02 +01:00

100 lines
3.6 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 System;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Input;
using osu.Framework.Input.Events;
using osu.Framework.Utils;
using osu.Game.Configuration;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Osu.Objects;
using osu.Game.Rulesets.Osu.Objects.Drawables;
using osuTK;
namespace osu.Game.Rulesets.Osu.Mods
{
public class OsuModFlashlight : ModFlashlight<OsuHitObject>, IApplicableToDrawableHitObject
{
public override double ScoreMultiplier => 1.12;
private const double default_follow_delay = 120;
[SettingSource("Follow delay", "Milliseconds until the flashlight reaches the cursor")]
public BindableNumber<double> FollowDelay { get; } = new BindableDouble(default_follow_delay)
{
MinValue = default_follow_delay,
MaxValue = default_follow_delay * 10,
Precision = default_follow_delay,
};
[SettingSource("Flashlight size", "Multiplier applied to the default flashlight size.")]
public override BindableNumber<float> SizeMultiplier { get; } = new BindableNumber<float>
{
MinValue = 0.5f,
MaxValue = 2f,
Default = 1f,
Value = 1f,
Precision = 0.1f
};
[SettingSource("Change size based on combo", "Decrease the flashlight size as combo increases.")]
public override BindableBool ComboBasedSize { get; } = new BindableBool
{
Default = true,
Value = true
};
public override float DefaultFlashlightSize => 180;
private OsuFlashlight flashlight;
protected override Flashlight CreateFlashlight() => flashlight = new OsuFlashlight(this);
public void ApplyToDrawableHitObject(DrawableHitObject drawable)
{
if (drawable is DrawableSlider s)
s.Tracking.ValueChanged += flashlight.OnSliderTrackingChange;
}
private class OsuFlashlight : Flashlight, IRequireHighFrequencyMousePosition
{
private readonly double followDelay;
public OsuFlashlight(OsuModFlashlight modFlashlight)
: base(modFlashlight)
{
followDelay = modFlashlight.FollowDelay.Value;
FlashlightSize = new Vector2(0, GetSizeFor(0));
}
public void OnSliderTrackingChange(ValueChangedEvent<bool> e)
{
// If a slider is in a tracking state, a further dim should be applied to the (remaining) visible portion of the playfield over a brief duration.
this.TransformTo(nameof(FlashlightDim), e.NewValue ? 0.8f : 0.0f, 50);
}
protected override bool OnMouseMove(MouseMoveEvent e)
{
var position = FlashlightPosition;
var destination = e.MousePosition;
FlashlightPosition = Interpolation.ValueAt(
Math.Min(Math.Abs(Clock.ElapsedFrameTime), followDelay), position, destination, 0, followDelay, Easing.Out);
return base.OnMouseMove(e);
}
protected override void OnComboChange(ValueChangedEvent<int> e)
{
this.TransformTo(nameof(FlashlightSize), new Vector2(0, GetSizeFor(e.NewValue)), FLASHLIGHT_FADE_DURATION);
}
protected override string FragmentShader => "CircularFlashlight";
}
}
}