osu/osu.Game.Rulesets.Osu/Mods/OsuModTransform.cs

54 lines
2.0 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 System.Collections.Generic;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Osu.Objects;
using osuTK;
namespace osu.Game.Rulesets.Osu.Mods
{
internal class OsuModTransform : Mod, IApplicableToDrawableHitObjects
{
public override string Name => "Transform";
public override string Acronym => "TR";
public override IconUsage Icon => FontAwesome.Solid.ArrowsAlt;
public override ModType Type => ModType.Fun;
public override string Description => "Everything rotates. EVERYTHING.";
public override double ScoreMultiplier => 1;
public override Type[] IncompatibleMods => new[] { typeof(OsuModWiggle) };
private float theta;
public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
{
foreach (var drawable in drawables)
{
var hitObject = (OsuHitObject)drawable.HitObject;
float appearDistance = (float)(hitObject.TimePreempt - hitObject.TimeFadeIn) / 2;
Vector2 originalPosition = drawable.Position;
Vector2 appearOffset = new Vector2(MathF.Cos(theta), MathF.Sin(theta)) * appearDistance;
//the - 1 and + 1 prevents the hit objects to appear in the wrong position.
double appearTime = hitObject.StartTime - hitObject.TimePreempt - 1;
double moveDuration = hitObject.TimePreempt + 1;
using (drawable.BeginAbsoluteSequence(appearTime, true))
{
drawable
.MoveToOffset(appearOffset)
.MoveTo(originalPosition, moveDuration, Easing.InOutSine);
}
theta += (float)hitObject.TimeFadeIn / 1000;
}
}
}
}