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osu-lazer/osu.Game.Rulesets.Osu/Mods/OsuModMagnetised.cs

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// 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.Extensions.ObjectExtensions;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Localisation;
using osu.Framework.Timing;
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 osu.Game.Rulesets.Osu.UI;
using osu.Game.Rulesets.UI;
using osuTK;
namespace osu.Game.Rulesets.Osu.Mods
{
internal class OsuModMagnetised : Mod, IUpdatableByPlayfield, IApplicableToDrawableRuleset<OsuHitObject>
{
public override string Name => "Magnetised";
public override string Acronym => "MG";
public override IconUsage? Icon => FontAwesome.Solid.Magnet;
public override ModType Type => ModType.Fun;
public override LocalisableString Description => "No need to chase the circles your cursor is a magnet!";
public override double ScoreMultiplier => 0.5;
public override Type[] IncompatibleMods => new[] { typeof(OsuModAutopilot), typeof(OsuModWiggle), typeof(OsuModTransform), typeof(ModAutoplay), typeof(OsuModRelax), typeof(OsuModRepel), typeof(OsuModBubbles), typeof(OsuModDepth) };
[SettingSource("Attraction strength", "How strong the pull is.", 0)]
public BindableFloat AttractionStrength { get; } = new BindableFloat(0.5f)
{
Precision = 0.05f,
MinValue = 0.05f,
MaxValue = 1.0f,
};
public void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
{
// Hide follow points as they won't make any sense.
// Judgements can potentially be turned on in a future where they display at a position relative to their drawable counterpart.
(drawableRuleset.Playfield as OsuPlayfield)?.FollowPoints.Hide();
}
public void Update(Playfield playfield)
{
var cursorPos = playfield.Cursor.AsNonNull().ActiveCursor.DrawPosition;
foreach (var entry in playfield.HitObjectContainer.AliveEntries)
{
var drawable = entry.Value;
switch (drawable)
{
case DrawableHitCircle circle:
easeTo(playfield.Clock, circle, cursorPos);
break;
case DrawableSlider slider:
if (!slider.HeadCircle.Result.HasResult)
easeTo(playfield.Clock, slider, cursorPos);
else
easeTo(playfield.Clock, slider, cursorPos - slider.Ball.DrawPosition);
break;
}
}
}
private void easeTo(IFrameBasedClock clock, DrawableHitObject hitObject, Vector2 destination)
{
double dampLength = Interpolation.Lerp(3000, 40, AttractionStrength.Value);
float x = (float)Interpolation.DampContinuously(hitObject.X, destination.X, dampLength, clock.ElapsedFrameTime);
float y = (float)Interpolation.DampContinuously(hitObject.Y, destination.Y, dampLength, clock.ElapsedFrameTime);
hitObject.Position = new Vector2(x, y);
}
}
}