mirror of https://github.com/ppy/osu
68 lines
2.4 KiB
C#
68 lines
2.4 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Linq;
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using System.Collections.Generic;
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using osu.Framework.Extensions.IEnumerableExtensions;
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using osu.Framework.Graphics;
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using osu.Game.Graphics;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Objects.Drawables;
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using osu.Game.Rulesets.Osu.Objects;
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using OpenTK;
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namespace osu.Game.Rulesets.Osu.Mods
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{
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internal class OsuModTransform : Mod, IApplicableToDrawableHitObjects
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{
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public override string Name => "Transform";
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public override string ShortenedName => "TR";
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public override FontAwesome Icon => FontAwesome.fa_arrows;
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public override ModType Type => ModType.Fun;
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public override string Description => "Everything rotates. EVERYTHING.";
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public override double ScoreMultiplier => 1;
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private readonly IReadOnlyList<Type> targetHitObjectTypes = new List<Type> {
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typeof(HitCircle),
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typeof(Slider),
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typeof(Spinner),
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};
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public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
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{
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drawables.ForEach(drawable =>
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drawable.ApplyCustomUpdateState += drawableOnApplyCustomUpdateState
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);
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}
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private float theta;
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private void drawableOnApplyCustomUpdateState(DrawableHitObject drawable, ArmedState state)
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{
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var hitObject = (OsuHitObject) drawable.HitObject;
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if (!targetHitObjectTypes.Contains(hitObject.GetType()))
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return;
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float appearDistance = (float)hitObject.TimePreempt * 0.5f;
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Vector2 originalPosition = drawable.Position;
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Vector2 appearOffset = new Vector2((float)Math.Cos(theta), (float)Math.Sin(theta)) * appearDistance;
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//the - 1 and + 1 prevents the hit explosion to appear in the wrong position.
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double appearTime = hitObject.StartTime - hitObject.TimePreempt - 1;
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double moveDuration = hitObject.TimePreempt + 1;
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using (drawable.BeginAbsoluteSequence(appearTime, true))
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{
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drawable
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.MoveToOffset(appearOffset)
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.MoveTo(originalPosition, moveDuration, Easing.InOutSine);
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}
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theta += 0.4f;
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}
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}
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}
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