// 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 System.Linq; 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 partial class OsuModFlashlight : ModFlashlight<OsuHitObject>, IApplicableToDrawableHitObject { public override double ScoreMultiplier => UsesDefaultConfiguration ? 1.12 : 1; public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(OsuModBlinds)).ToArray(); 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, }; public override BindableFloat SizeMultiplier { get; } = new BindableFloat(1) { MinValue = 0.5f, MaxValue = 2f, Precision = 0.1f }; public override BindableBool ComboBasedSize { get; } = new BindableBool(true); public override float DefaultFlashlightSize => 200; private OsuFlashlight flashlight = null!; protected override Flashlight CreateFlashlight() => flashlight = new OsuFlashlight(this); public void ApplyToDrawableHitObject(DrawableHitObject drawable) { if (drawable is DrawableSlider s) s.Tracking.ValueChanged += flashlight.OnSliderTrackingChange; } private partial class OsuFlashlight : Flashlight, IRequireHighFrequencyMousePosition { private readonly double followDelay; public OsuFlashlight(OsuModFlashlight modFlashlight) : base(modFlashlight) { followDelay = modFlashlight.FollowDelay.Value; FlashlightSize = new Vector2(0, GetSize()); FlashlightSmoothness = 1.4f; } 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 UpdateFlashlightSize(float size) { this.TransformTo(nameof(FlashlightSize), new Vector2(0, size), FLASHLIGHT_FADE_DURATION); } protected override string FragmentShader => "CircularFlashlight"; } } }