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134 lines
4.7 KiB
C#
134 lines
4.7 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Game.Beatmaps;
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using osu.Game.Replays;
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using osu.Game.Rulesets.Taiko.Objects;
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using osu.Game.Rulesets.Replays;
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using osu.Game.Rulesets.Taiko.Beatmaps;
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using osu.Game.Rulesets.Objects;
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namespace osu.Game.Rulesets.Taiko.Replays
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{
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public class TaikoAutoGenerator : AutoGenerator
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{
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public new TaikoBeatmap Beatmap => (TaikoBeatmap)base.Beatmap;
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private const double swell_hit_speed = 50;
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public TaikoAutoGenerator(IBeatmap beatmap)
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: base(beatmap)
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{
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Replay = new Replay();
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}
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protected Replay Replay;
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protected List<ReplayFrame> Frames => Replay.Frames;
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public override Replay Generate()
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{
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bool hitButton = true;
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Frames.Add(new TaikoReplayFrame(-100000));
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Frames.Add(new TaikoReplayFrame(Beatmap.HitObjects[0].StartTime - 1000));
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for (int i = 0; i < Beatmap.HitObjects.Count; i++)
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{
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TaikoHitObject h = Beatmap.HitObjects[i];
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double endTime = h.GetEndTime();
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switch (h)
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{
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case Swell swell:
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{
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int d = 0;
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int count = 0;
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int req = swell.RequiredHits;
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double hitRate = Math.Min(swell_hit_speed, swell.Duration / req);
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for (double j = h.StartTime; j < endTime; j += hitRate)
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{
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TaikoAction action;
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switch (d)
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{
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default:
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case 0:
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action = TaikoAction.LeftCentre;
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break;
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case 1:
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action = TaikoAction.LeftRim;
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break;
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case 2:
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action = TaikoAction.RightCentre;
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break;
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case 3:
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action = TaikoAction.RightRim;
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break;
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}
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Frames.Add(new TaikoReplayFrame(j, action));
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d = (d + 1) % 4;
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if (++count == req)
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break;
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}
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break;
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}
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case DrumRoll drumRoll:
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{
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foreach (var tick in drumRoll.NestedHitObjects.OfType<DrumRollTick>())
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{
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Frames.Add(new TaikoReplayFrame(tick.StartTime, hitButton ? TaikoAction.LeftCentre : TaikoAction.RightCentre));
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hitButton = !hitButton;
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}
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break;
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}
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case Hit hit:
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{
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TaikoAction[] actions;
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if (hit.Type == HitType.Centre)
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{
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actions = h.IsStrong
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? new[] { TaikoAction.LeftCentre, TaikoAction.RightCentre }
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: new[] { hitButton ? TaikoAction.LeftCentre : TaikoAction.RightCentre };
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}
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else
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{
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actions = h.IsStrong
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? new[] { TaikoAction.LeftRim, TaikoAction.RightRim }
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: new[] { hitButton ? TaikoAction.LeftRim : TaikoAction.RightRim };
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}
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Frames.Add(new TaikoReplayFrame(h.StartTime, actions));
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break;
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}
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default:
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throw new InvalidOperationException("Unknown hit object type.");
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}
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var nextHitObject = GetNextObject(i); // Get the next object that requires pressing the same button
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bool canDelayKeyUp = nextHitObject == null || nextHitObject.StartTime > endTime + KEY_UP_DELAY;
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double calculatedDelay = canDelayKeyUp ? KEY_UP_DELAY : (nextHitObject.StartTime - endTime) * 0.9;
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Frames.Add(new TaikoReplayFrame(endTime + calculatedDelay));
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hitButton = !hitButton;
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}
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return Replay;
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}
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}
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}
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