diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModWiggle.cs b/osu.Game.Rulesets.Osu/Mods/OsuModWiggle.cs new file mode 100644 index 0000000000..5e6cb22ec3 --- /dev/null +++ b/osu.Game.Rulesets.Osu/Mods/OsuModWiggle.cs @@ -0,0 +1,82 @@ +// Copyright (c) 2007-2018 ppy Pty Ltd . +// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE + +using System; +using System.Collections.Generic; +using osu.Framework.Graphics; +using osu.Game.Graphics; +using osu.Game.Rulesets.Mods; +using osu.Game.Rulesets.Objects.Drawables; +using osu.Game.Rulesets.Osu.Objects; +using OpenTK; + +namespace osu.Game.Rulesets.Osu.Mods +{ + internal class OsuModWiggle : Mod, IApplicableToDrawableHitObjects + { + public override string Name => "Wiggle"; + public override string ShortenedName => "WG"; + public override FontAwesome Icon => FontAwesome.fa_arrows_alt; + public override ModType Type => ModType.Fun; + public override string Description => "They just won't stay still..."; + public override double ScoreMultiplier => 1; + + private readonly int wiggle_delay = 90; // (ms) Higher = fewer wiggles + private readonly int wiggle_strength = 10; // Higher = stronger wiggles + + public void ApplyToDrawableHitObjects(IEnumerable drawables) + { + foreach(var drawable in drawables) + drawable.ApplyCustomUpdateState += drawableOnApplyCustomUpdateState; + } + + private void drawableOnApplyCustomUpdateState(DrawableHitObject drawable, ArmedState state) + { + var hitObject = (OsuHitObject)drawable.HitObject; + Vector2 origPos = drawable.Position; + + Random distRand = new Random(hitObject.ComboOffset); + Random angleRand = new Random(hitObject.IndexInCurrentCombo); + + // Wiggle all objects during TimePreempt + int amountWiggles = (int)hitObject.TimePreempt / wiggle_delay; + + for (int i = 0; i < amountWiggles; i++) + { + using (drawable.BeginAbsoluteSequence(hitObject.StartTime - hitObject.TimePreempt + i * wiggle_delay, true)) + { + float nextAngle = (float)(angleRand.NextDouble() * 2 * Math.PI); + float nextDist = (float)(distRand.NextDouble() * wiggle_strength); + Vector2 wiggledPos = new Vector2((float)(nextDist * Math.Cos(nextAngle) + origPos.X), (float)(nextDist * Math.Sin(nextAngle) + origPos.Y)); + drawable.MoveTo(wiggledPos, wiggle_delay); + } + } + + // Keep wiggling sliders and spinners for their duration + double objDuration; + if (hitObject is Slider slider) + { + objDuration = slider.Duration; + } + else if (hitObject is Spinner spinner) + { + objDuration = spinner.Duration; + } + else + return; + + amountWiggles = (int)(objDuration / wiggle_delay); + + for (int i = 0; i < amountWiggles; i++) + { + using (drawable.BeginAbsoluteSequence(hitObject.StartTime + i * wiggle_delay, true)) + { + float nextAngle = (float)(angleRand.NextDouble() * 2 * Math.PI); + float nextDist = (float)(distRand.NextDouble() * wiggle_strength); + Vector2 wiggledPos = new Vector2((float)(nextDist * Math.Cos(nextAngle) + origPos.X), (float)(nextDist * Math.Sin(nextAngle) + origPos.Y)); + drawable.MoveTo(wiggledPos, wiggle_delay); + } + } + } + } +} diff --git a/osu.Game.Rulesets.Osu/OsuRuleset.cs b/osu.Game.Rulesets.Osu/OsuRuleset.cs index fa6e9a018a..a16f6494e7 100644 --- a/osu.Game.Rulesets.Osu/OsuRuleset.cs +++ b/osu.Game.Rulesets.Osu/OsuRuleset.cs @@ -117,6 +117,11 @@ namespace osu.Game.Rulesets.Osu new OsuModRelax(), new OsuModAutopilot(), }; + case ModType.Fun: + return new Mod[] + { + new OsuModWiggle(), + }; default: return new Mod[] { }; }