// 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.Linq; using osu.Framework.Extensions.ObjectExtensions; using osu.Game.Beatmaps; using osu.Game.Rulesets.Taiko.Objects; using osu.Game.Rulesets.Replays; using osu.Game.Rulesets.Taiko.Beatmaps; using osu.Game.Rulesets.Objects; namespace osu.Game.Rulesets.Taiko.Replays { public class TaikoAutoGenerator : AutoGenerator<TaikoReplayFrame> { public new TaikoBeatmap Beatmap => (TaikoBeatmap)base.Beatmap; private const double swell_hit_speed = 50; public TaikoAutoGenerator(IBeatmap beatmap) : base(beatmap) { } protected override void GenerateFrames() { if (Beatmap.HitObjects.Count == 0) return; bool hitButton = true; Frames.Add(new TaikoReplayFrame(Beatmap.HitObjects[0].StartTime - 1000)); for (int i = 0; i < Beatmap.HitObjects.Count; i++) { TaikoHitObject h = Beatmap.HitObjects[i]; double endTime = h.GetEndTime(); switch (h) { case Swell swell: { int d = 0; int count = 0; int req = swell.RequiredHits; double hitRate = Math.Min(swell_hit_speed, swell.Duration / req); for (double j = h.StartTime; j < endTime; j += hitRate) { TaikoAction action; switch (d) { default: case 0: action = TaikoAction.LeftCentre; break; case 1: action = TaikoAction.LeftRim; break; case 2: action = TaikoAction.RightCentre; break; case 3: action = TaikoAction.RightRim; break; } Frames.Add(new TaikoReplayFrame(j, action)); d = (d + 1) % 4; if (++count == req) break; } break; } case DrumRoll drumRoll: { foreach (var tick in drumRoll.NestedHitObjects.OfType<DrumRollTick>()) { Frames.Add(new TaikoReplayFrame(tick.StartTime, hitButton ? TaikoAction.LeftCentre : TaikoAction.RightCentre)); hitButton = !hitButton; } break; } case Hit hit: { TaikoAction[] actions; if (hit.Type == HitType.Centre) { actions = hit.IsStrong ? new[] { TaikoAction.LeftCentre, TaikoAction.RightCentre } : new[] { hitButton ? TaikoAction.LeftCentre : TaikoAction.RightCentre }; } else { actions = hit.IsStrong ? new[] { TaikoAction.LeftRim, TaikoAction.RightRim } : new[] { hitButton ? TaikoAction.LeftRim : TaikoAction.RightRim }; } Frames.Add(new TaikoReplayFrame(h.StartTime, actions)); break; } default: throw new InvalidOperationException("Unknown hit object type."); } var nextHitObject = GetNextObject(i); // Get the next object that requires pressing the same button bool canDelayKeyUp = nextHitObject == null || nextHitObject.StartTime > endTime + KEY_UP_DELAY; double calculatedDelay = canDelayKeyUp ? KEY_UP_DELAY : (nextHitObject.AsNonNull().StartTime - endTime) * 0.9; Frames.Add(new TaikoReplayFrame(endTime + calculatedDelay)); hitButton = !hitButton; } } } }