[+] T_JUDGE_HLD能够正确计算了！

Author: Starrah

chart/Note.cs

@@ -49,13 +49,15 @@ protected Note(Chart chart, Rational time)
             List<(int, decimal, Rational, Rational)> result = [];
             var now = Time.CanonicalForm;
             var end = (Time + Duration.Bar).CanonicalForm;
-            while (now < end)
+            var isFirstRange = true; // 通过这个变量和对应的逻辑，确保返回的BpmRanges至少含有一个元素。即使note本身是0长度的，返回的BpmRanges也能有一个len=0的元素。
+            while (now < end || isFirstRange) 
             {
                 var bpmIdx = Chart.BpmList.FindIndex(now);
                 var curBpmRangeEnd = bpmIdx < Chart.BpmList.Count - 1 ? Chart.BpmList[bpmIdx + 1].Time : 999999; // 当前BPM区间的结束时刻
                 var len = Utils.Min(end, curBpmRangeEnd) - now; // 音符落在本区间内的长度为，从当前时刻开始，到（本区间结束或音符结束的较早者）
                 result.Add((bpmIdx, Chart.BpmList[bpmIdx].Bpm, now, len.CanonicalForm));
                 now = (now + len).CanonicalForm;
+                isFirstRange = false;
             }
             return result;
         }

chart/Statistics.cs

@@ -45,32 +45,15 @@ private void AddNote(Note note)
             _nowFalseEachIndex = note.FalseEachIdx;
         }
 
-        // T_JUDGE_HOLD 原理应该是游戏DLL中的Manager.NotesReader.getProgJudgeGrid。
+        // T_JUDGE_HLD 原理应该是游戏DLL中的Manager.NotesReader.getProgJudgeGrid。
         // 但是具体的机制研究的也不是太明白，只是尽力实现了下
         if (note is Hold or TouchHold)
         {
             var bpmRanges = note.BpmRanges;
-            for (int i = 0; i < bpmRanges.Count; i++)
+            foreach (var (_, bpm, _, len) in bpmRanges)
             {
-                var (_, bpm, start, len) = bpmRanges[i];
                 var gridSize = new Rational(getProgJudgeGrid(bpm), 384);
-                T_JUDGE_HLD += (int)(len / gridSize).Ceil();
-                continue;
-                // TODO 当前版本的实现还有一定问题，还有一部分测试（Statistics测试.cs的SkippedKeys注释掉之后）过不了，差个位数数字
-                // 具体什么原因后续还需要调研一下
-                
-                // 数：当前音符落在当前BPM区间内，所跨过的整数格点的个数
-                var startPointF = start / gridSize;
-                var startPoint = (int)startPointF.Ceil();
-                // if (startPointF.FractionPart == 0) startPoint++;
-                var endPointF = (start + len) / gridSize;
-                var endPoint = (int)endPointF.WholePart; // 相当于Floor
-                if (endPointF.FractionPart == 0) endPoint--;
-                var gridCount = endPoint - startPoint + 1;
-                T_JUDGE_HLD += gridCount;
-                
-                // 如果：整个hold的头，不是落在整数格点上。则还要加一个单独的头判
-                if (i == 0 && startPointF.FractionPart != 0) T_JUDGE_HLD++;
+                T_JUDGE_HLD += Math.Max((int)(len / gridSize).Ceil(), 1);
             }
         }
     }

tests/Statistics测试.cs

@@ -33,14 +33,10 @@ public static IEnumerable<object[]> OfficialLevel5()
         }
     }
 
-    private static List<string> T_JUDGE_HLD不准确所以不测 = ["系ぎて", "PANDORA PARADOXXX", "Xaleid◆scopiX", "Ref：rain (for 7th Heaven)", "Grievous Lady"];
-
     [SkippableTheory]
     [MemberData(nameof(OfficialLevel5))]
     public void 统计段与原版一致(TestInput input)
     {
-        Skip.If(T_JUDGE_HLD不准确所以不测.Any(x=> Path.GetFileName(input.Dir).StartsWith(x)), "T_JUDGE_HLD的实现现在还不完全准确，在这些样例上会爆掉，所以暂时不测这些样例。");
-        
         var ma2Original = File.ReadAllText(input.MA2, Encoding.UTF8);
         var (chart, parseAlerts) = new MA2Parser().Parse(ma2Original);
         Assert.Empty(parseAlerts);