Merge pull request #492 from smoogipooo/scoreprocessor_computation

Scoreprocessor computation

osu.Game/Database/ScoreDatabase.cs

@@ -39,7 +39,7 @@ namespace osu.Game.Database
             using (SerializationReader sr = new SerializationReader(s))
             {
                 var ruleset = Ruleset.GetRuleset((PlayMode)sr.ReadByte());
-                score = ruleset.CreateScoreProcessor().GetScore();
+                score = ruleset.CreateScoreProcessor().CreateScore();
 
                 /* score.Pass = true;*/
                 var version = sr.ReadInt32();

osu.Game/Modes/ScoreProcessor.cs

@@ -7,13 +7,14 @@ using System.Collections.Generic;
 using osu.Game.Modes.Judgements;
 using osu.Game.Modes.UI;
 using osu.Game.Modes.Objects;
+using osu.Game.Beatmaps;
 
 namespace osu.Game.Modes
 {
     public abstract class ScoreProcessor
     {
         /// <summary>
-        /// Invoked when the score is in a failing state.
+        /// Invoked when the ScoreProcessor is in a failed state.
         /// </summary>
         public event Action Failed;
 
@@ -42,7 +43,28 @@ namespace osu.Game.Modes
         /// </summary>
         public readonly BindableInt HighestCombo = new BindableInt();
 
-        public virtual Score GetScore() => new Score
+        /// <summary>
+        /// Whether the score is in a failed state.
+        /// </summary>
+        public virtual bool HasFailed => false;
+
+        /// <summary>
+        /// Whether this ScoreProcessor has already triggered the failed state.
+        /// </summary>
+        private bool alreadyFailed;
+
+        protected ScoreProcessor()
+        {
+            Combo.ValueChanged += delegate { HighestCombo.Value = Math.Max(HighestCombo.Value, Combo.Value); };
+
+            Reset();
+        }
+
+        /// <summary>
+        /// Creates a Score applicable to the game mode in which this ScoreProcessor resides.
+        /// </summary>
+        /// <returns>The Score.</returns>
+        public virtual Score CreateScore() => new Score
         {
             TotalScore = TotalScore,
             Combo = Combo,
@@ -52,16 +74,31 @@ namespace osu.Game.Modes
         };
 
         /// <summary>
-        /// Checks if the score is in a failing state.
+        /// Resets this ScoreProcessor to a default state.
         /// </summary>
-        /// <returns>Whether the score is in a failing state.</returns>
-        public abstract bool CheckFailed();
+        protected virtual void Reset()
+        {
+            TotalScore.Value = 0;
+            Accuracy.Value = 0;
+            Health.Value = 0;
+            Combo.Value = 0;
+            HighestCombo.Value = 0;
+
+            alreadyFailed = false;
+        }
 
         /// <summary>
-        /// Notifies subscribers that the score is in a failed state.
+        /// Checks if the score is in a failed state and notifies subscribers.
+        /// <para>
+        /// This can only ever notify subscribers once.
+        /// </para>
         /// </summary>
-        protected void TriggerFailed()
+        protected void UpdateFailed()
         {
+            if (alreadyFailed || !HasFailed)
+                return;
+
+            alreadyFailed = true;
             Failed?.Invoke();
         }
     }
@@ -75,29 +112,28 @@ namespace osu.Game.Modes
         /// </summary>
         protected readonly List<TJudgement> Judgements = new List<TJudgement>();
 
-        /// <summary>
-        /// Whether the score is in a failable state.
-        /// </summary>
-        protected virtual bool IsFailable => Health.Value == Health.MinValue;
-
-        /// <summary>
-        /// Whether this ScoreProcessor has already failed.
-        /// </summary>
-        private bool hasFailed;
+        public override bool HasFailed => Health.Value == Health.MinValue;
 
         protected ScoreProcessor()
         {
-            Combo.ValueChanged += delegate { HighestCombo.Value = Math.Max(HighestCombo.Value, Combo.Value); };
+        }
+
+        protected ScoreProcessor(HitRenderer<TObject, TJudgement> hitRenderer)
+        {
+            Judgements.Capacity = hitRenderer.Beatmap.HitObjects.Count;
+
+            hitRenderer.OnJudgement += addJudgement;
+
+            ComputeTargets(hitRenderer.Beatmap);
 
             Reset();
         }
 
-        protected ScoreProcessor(HitRenderer<TObject, TJudgement> hitRenderer)
-            : this()
-        {
-            Judgements.Capacity = hitRenderer.Beatmap.HitObjects.Count;
-            hitRenderer.OnJudgement += addJudgement;
-        }
+        /// <summary>
+        /// Computes target scoring values for this ScoreProcessor. This is equivalent to performing an auto-play of the score to find the values.
+        /// </summary>
+        /// <param name="beatmap">The Beatmap containing the objects that will be judged by this ScoreProcessor.</param>
+        protected virtual void ComputeTargets(Beatmap<TObject> beatmap) { }
 
         /// <summary>
         /// Adds a judgement to this ScoreProcessor.
@@ -111,33 +147,12 @@ namespace osu.Game.Modes
 
             judgement.ComboAtHit = (ulong)Combo.Value;
 
-            CheckFailed();
+            UpdateFailed();
         }
 
-        public override bool CheckFailed()
-        {
-            if (!hasFailed && IsFailable)
-            {
-                hasFailed = true;
-                TriggerFailed();
-            }
-
-            return hasFailed;
-        }
-
-        /// <summary>
-        /// Resets this ScoreProcessor to a stale state.
-        /// </summary>
-        protected virtual void Reset()
+        protected override void Reset()
         {
             Judgements.Clear();
-
-            hasFailed = false;
-            TotalScore.Value = 0;
-            Accuracy.Value = 0;
-            Health.Value = 0;
-            Combo.Value = 0;
-            HighestCombo.Value = 0;
         }
 
         /// <summary>
@@ -146,4 +161,4 @@ namespace osu.Game.Modes
         /// <param name="newJudgement">A new JudgementInfo that triggered this calculation. May be null.</param>
         protected abstract void UpdateCalculations(TJudgement newJudgement);
     }
-}
+}

osu.Game/Modes/UI/HitRenderer.cs

@@ -25,6 +25,9 @@ namespace osu.Game.Modes.UI
     /// </summary>
     public abstract class HitRenderer : Container
     {
+        /// <summary>
+        /// Invoked when all the judgeable HitObjects have been judged.
+        /// </summary>
         public event Action OnAllJudged;
 
         /// <summary>
@@ -190,9 +193,10 @@ namespace osu.Game.Modes.UI
         /// <param name="judgedObject">The object that Judgement has been updated for.</param>
         private void onJudgement(DrawableHitObject<TObject, TJudgement> judgedObject)
         {
-            OnJudgement?.Invoke(judgedObject.Judgement);
             Playfield.OnJudgement(judgedObject);
 
+            OnJudgement?.Invoke(judgedObject.Judgement);
+
             CheckAllJudged();
         }
 

osu.Game/Screens/Play/Player.cs

@@ -239,14 +239,9 @@ namespace osu.Game.Screens.Play
 
         private void onCompletion()
         {
-            // Force a final check to see if the player has failed
-            // Some game modes (e.g. taiko) fail at the end of the map
-            if (scoreProcessor.CheckFailed())
-            {
-                // If failed, onFail will be invoked which will push a new screen.
-                // Let's not push the completion screen in this case
+            // Only show the completion screen if the player hasn't failed
+            if (scoreProcessor.HasFailed)
                 return;
-            }
 
             Delay(1000);
             Schedule(delegate
@@ -254,7 +249,7 @@ namespace osu.Game.Screens.Play
                 ValidForResume = false;
                 Push(new Results
                 {
-                    Score = scoreProcessor.GetScore()
+                    Score = scoreProcessor.CreateScore()
                 });
             });
         }