KancolleSniffer/BattleInfo.cs

   1 // Copyright (C) 2014, 2015 Kazuhiro Fujieda <fujieda@users.osdn.me>\r
   2 // \r
   3 // Licensed under the Apache License, Version 2.0 (the "License");\r
   4 // you may not use this file except in compliance with the License.\r
   5 // You may obtain a copy of the License at\r
   6 //\r
   7 //    http://www.apache.org/licenses/LICENSE-2.0\r
   8 //\r
   9 // Unless required by applicable law or agreed to in writing, software\r
  10 // distributed under the License is distributed on an "AS IS" BASIS,\r
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  12 // See the License for the specific language governing permissions and\r
  13 // limitations under the License.\r
  14 \r
  15 using System.Collections.Generic;\r
  16 using System.Linq;\r
  17 using static System.Math;\r
  18 \r
  19 namespace KancolleSniffer\r
  20 {\r
  21     public enum BattleResultRank\r
  22     {\r
  23         P,\r
  24         S,\r
  25         A,\r
  26         B,\r
  27         C,\r
  28         D,\r
  29         E,\r
  30     }\r
  31 \r
  32     public class BattleInfo\r
  33     {\r
  34         private readonly ShipInfo _shipInfo;\r
  35         private readonly ItemInfo _itemInfo;\r
  36         private int _fleet;\r
  37         private Record[] _friend;\r
  38         private Record[] _guard;\r
  39         private int[] _enemyHp;\r
  40         private int[] _enemyGuardHp;\r
  41         private int[] _enemyStartHp;\r
  42         private int[] _enemyGuardStartHp;\r
  43         private readonly List<int> _escapingShips = new List<int>();\r
  44         private int _flagshipRecoveryType;\r
  45 \r
  46         public bool InBattle { get; set; }\r
  47         public string Formation { get; private set; }\r
  48         public string EnemyFighterPower { get; private set; }\r
  49         public int AirControlLevel { get; private set; }\r
  50         public BattleResultRank ResultRank { get; private set; }\r
  51         public ShipStatus[] EnemyResultStatus { get; private set; }\r
  52 \r
  53         public BattleInfo(ShipInfo shipInfo, ItemInfo itemInfo)\r
  54         {\r
  55             _shipInfo = shipInfo;\r
  56             _itemInfo = itemInfo;\r
  57         }\r
  58 \r
  59         public void InspectBattle(dynamic json, string url)\r
  60         {\r
  61             InBattle = true;\r
  62             Formation = FormationName(json);\r
  63             EnemyFighterPower = CalcEnemyFighterPower(json);\r
  64             AirControlLevel = CheckAirControlLevel(json);\r
  65             ShowResult(false); // 昼戦の結果を夜戦のときに表示する\r
  66             SetupResult(json);\r
  67             if (IsNightBattle(json))\r
  68             {\r
  69                 CalcHougekiDamage(json.api_hougeki,\r
  70                     _guard.Length > 0 ? _guard : _friend,\r
  71                     json.api_active_deck() && json.api_active_deck[1] != 1 ? _enemyGuardHp : _enemyHp);\r
  72             }\r
  73             else\r
  74             {\r
  75                 CalcDamage(json, url.EndsWith("battle_water"));\r
  76             }\r
  77             ClearEnemyOverKill();\r
  78             ResultRank = url.EndsWith("ld_airbattle") ? CalcLdAirBattleRank() : CalcResultRank();\r
  79         }\r
  80 \r
  81         private void ClearEnemyOverKill()\r
  82         {\r
  83             _enemyHp = _enemyHp.Select(hp => hp < 0 ? 0 : hp).ToArray();\r
  84             _enemyGuardHp = _enemyGuardHp.Select(hp => hp < 0 ? 0 : hp).ToArray();\r
  85         }\r
  86 \r
  87         public void InspectMapNext(string request)\r
  88         {\r
  89             var type = HttpUtility.ParseQueryString(request)["api_recovery_type"];\r
  90             if (type == null)\r
  91                 return;\r
  92             _flagshipRecoveryType = int.Parse(type);\r
  93         }\r
  94 \r
  95         private bool IsNightBattle(dynamic json) => json.api_hougeki();\r
  96 \r
  97         private int DeckId(dynamic json)\r
  98         {\r
  99             if (json.api_dock_id()) // 昼戦はtypoしている\r
 100                 return (int)json.api_dock_id - 1;\r
 101             if (json.api_deck_id is string) // 通常の夜戦では文字列\r
 102                 return int.Parse(json.api_deck_id) - 1;\r
 103             return (int)json.api_deck_id - 1;\r
 104         }\r
 105 \r
 106         private string FormationName(dynamic json)\r
 107         {\r
 108             if (!json.api_formation()) // 演習の夜戦\r
 109                 return "";\r
 110             switch ((int)json.api_formation[2])\r
 111             {\r
 112                 case 1:\r
 113                     return "同航戦";\r
 114                 case 2:\r
 115                     return "反航戦";\r
 116                 case 3:\r
 117                     return "T字有利";\r
 118                 case 4:\r
 119                     return "T字不利";\r
 120             }\r
 121             return "";\r
 122         }\r
 123 \r
 124         private void SetupResult(dynamic json)\r
 125         {\r
 126             if (_friend != null)\r
 127                 return;\r
 128             var nowhps = (int[])json.api_nowhps;\r
 129             _fleet = DeckId(json);\r
 130             var fstats = _shipInfo.GetShipStatuses(_fleet);\r
 131             FlagshipRecovery(fstats[0]);\r
 132             _friend = Record.Setup(fstats);\r
 133             _enemyHp = nowhps.Skip(7).TakeWhile(hp => hp != -1).ToArray();\r
 134             _enemyStartHp = (int[])_enemyHp.Clone();\r
 135             EnemyResultStatus =\r
 136             (from id in (int[])json.api_ship_ke\r
 137                 where id != -1\r
 138                 select new ShipStatus {Id = id, Spec = _shipInfo.GetSpec(id)}).ToArray();\r
 139             _guard = new Record[0];\r
 140             _enemyGuardHp = new int[0];\r
 141             _enemyGuardStartHp = new int[0];\r
 142             if (!json.api_nowhps_combined())\r
 143                 return;\r
 144             var combined = (int[])json.api_nowhps_combined;\r
 145             if (combined[1] != -1) // 味方が連合艦隊\r
 146                 _guard = Record.Setup(_shipInfo.GetShipStatuses(1));\r
 147             if (combined.Length > 7) // 敵が連合艦隊\r
 148             {\r
 149                 _enemyGuardHp =\r
 150                     ((int[])json.api_nowhps_combined).\r
 151                         Skip(7).TakeWhile(hp => hp != -1).ToArray();\r
 152                 _enemyGuardStartHp = (int[])_enemyGuardHp.Clone();\r
 153             }\r
 154         }\r
 155 \r
 156         private void FlagshipRecovery(ShipStatus flagship)\r
 157         {\r
 158             switch (_flagshipRecoveryType)\r
 159             {\r
 160                 case 0:\r
 161                     return;\r
 162                 case 1:\r
 163                     flagship.NowHp = flagship.MaxHp / 2;\r
 164                     ConsumeSlotItem(flagship, 42); // ダメコン\r
 165                     break;\r
 166                 case 2:\r
 167                     flagship.NowHp = flagship.MaxHp;\r
 168                     ConsumeSlotItem(flagship, 43); // 女神\r
 169                     break;\r
 170             }\r
 171             if (_flagshipRecoveryType != 0)\r
 172                 _shipInfo.SetBadlyDamagedShips();\r
 173             _flagshipRecoveryType = 0;\r
 174         }\r
 175 \r
 176         private static void ConsumeSlotItem(ShipStatus ship, int id)\r
 177         {\r
 178             if (ship.SlotEx.Spec.Id == id)\r
 179             {\r
 180                 ship.SlotEx = new ItemStatus();\r
 181                 return;\r
 182             }\r
 183             for (var i = 0; i < ship.Slot.Length; i++)\r
 184             {\r
 185                 if (ship.Slot[i].Spec.Id == id)\r
 186                 {\r
 187                     ship.Slot[i] = new ItemStatus();\r
 188                     break;\r
 189                 }\r
 190             }\r
 191         }\r
 192 \r
 193         public void CleanupResult()\r
 194         {\r
 195             _friend = null;\r
 196         }\r
 197 \r
 198         private int CheckAirControlLevel(dynamic json)\r
 199         {\r
 200             if (!json.api_kouku())\r
 201                 return -1;\r
 202             var stage1 = json.api_kouku.api_stage1;\r
 203             if (stage1 == null)\r
 204                 return -1;\r
 205             if (stage1.api_f_count == 0 && stage1.api_e_count == 0)\r
 206                 return -1;\r
 207             return (int)stage1.api_disp_seiku;\r
 208         }\r
 209 \r
 210         private string CalcEnemyFighterPower(dynamic json)\r
 211         {\r
 212             var missing = "";\r
 213             var maxEq = ((int[])json.api_ship_ke).Skip(1).SelectMany(id =>\r
 214             {\r
 215                 var r = _shipInfo.GetSpec(id).MaxEq;\r
 216                 if (r != null)\r
 217                     return r;\r
 218                 missing = "+";\r
 219                 return new int[5];\r
 220             }).ToArray();\r
 221             var equips = ((int[][])json.api_eSlot).SelectMany(x => x);\r
 222             return (from slot in equips.Zip(maxEq, (id, max) => new {id, max})\r
 223                        let spec = _itemInfo.GetSpecByItemId(slot.id)\r
 224                        where spec.CanAirCombat\r
 225                        select (int)Floor(spec.AntiAir * Sqrt(slot.max))).DefaultIfEmpty().Sum() + missing;\r
 226         }\r
 227 \r
 228         private void CalcDamage(dynamic json, bool surfaceFleet = false)\r
 229         {\r
 230             var fc = _guard.Length > 0;\r
 231             var ec = _enemyGuardHp.Length > 0;\r
 232             if (json.api_air_base_attack())\r
 233                 CalcAirBaseAttackDamage(json.api_air_base_attack);\r
 234             if (json.api_kouku.api_stage3 != null)\r
 235                 CalcSimpleDamage(json.api_kouku.api_stage3, _friend, _enemyHp);\r
 236             if (json.api_kouku.api_stage3_combined() && json.api_kouku.api_stage3_combined != null)\r
 237                 CalcSimpleDamage(json.api_kouku.api_stage3_combined, _guard, _enemyGuardHp);\r
 238             if (json.api_kouku2()) // 航空戦2回目\r
 239             {\r
 240                 if (json.api_kouku2.api_stage3 != null)\r
 241                     CalcSimpleDamage(json.api_kouku2.api_stage3, _friend, _enemyHp);\r
 242                 if (json.api_kouku2.api_stage3_combined() && json.api_kouku2.api_stage3_combined != null)\r
 243                     CalcSimpleDamage(json.api_kouku2.api_stage3_combined, _guard, _enemyGuardHp);\r
 244             }\r
 245             if (!json.api_opening_atack()) // 航空戦のみ\r
 246                 return;\r
 247             if (json.api_support_info() && json.api_support_info != null)\r
 248                 CalcSupportDamage(json.api_support_info);\r
 249             if (json.api_opening_taisen() && json.api_opening_taisen != null)\r
 250             {\r
 251                 var friend = fc ? _guard : _friend; // 先制対潜攻撃の対象は護衛(たぶん)\r
 252                 CalcHougekiDamage(json.api_opening_taisen, friend, _enemyHp);\r
 253             }\r
 254             if (json.api_opening_atack != null)\r
 255             {\r
 256                 var friend = fc ? _guard : _friend; // 雷撃の対象は護衛\r
 257                 CalcSimpleDamage(json.api_opening_atack, friend, _enemyHp, _enemyGuardHp);\r
 258             }\r
 259             if (json.api_hougeki1() && json.api_hougeki1 != null)\r
 260             {\r
 261                 CalcHougekiDamage(json.api_hougeki1,\r
 262                     fc && !surfaceFleet ? _guard : _friend, // 空母機動部隊は一巡目が護衛\r
 263                     ec ? _enemyGuardHp : _enemyHp); // 敵連合艦隊は一巡目が護衛\r
 264             }\r
 265             if (json.api_hougeki2() && json.api_hougeki2 != null)\r
 266             {\r
 267                 if (json.api_hougeki2.api_at_eflag())\r
 268                     CalcCombinedHougekiDamage(json.api_hougeki2, _friend, _guard, _enemyHp, _enemyGuardHp);\r
 269                 else\r
 270                     CalcHougekiDamage(json.api_hougeki2, _friend, _enemyHp);\r
 271             }\r
 272             if (json.api_hougeki3() && json.api_hougeki3 != null)\r
 273             {\r
 274                 if (json.api_hougeki3.api_at_eflag())\r
 275                 {\r
 276                     CalcCombinedHougekiDamage(json.api_hougeki3, _friend, _guard, _enemyHp, _enemyGuardHp);\r
 277                 }\r
 278                 else\r
 279                 {\r
 280                     var friend = fc && surfaceFleet ? _guard : _friend; // 水上打撃部隊は三順目が護衛\r
 281                     CalcHougekiDamage(json.api_hougeki3, friend, _enemyHp);\r
 282                 }\r
 283             }\r
 284             if (json.api_raigeki() && json.api_raigeki != null)\r
 285             {\r
 286                 var friend = fc ? _guard : _friend;\r
 287                 CalcSimpleDamage(json.api_raigeki, friend, _enemyHp, _enemyGuardHp);\r
 288             }\r
 289         }\r
 290 \r
 291         private void CalcSupportDamage(dynamic json)\r
 292         {\r
 293             if (json.api_support_hourai != null)\r
 294                 CalcSimpleDamage(json.api_support_hourai.api_damage, _enemyHp);\r
 295             else if (json.api_support_airatack != null)\r
 296             {\r
 297                 var stage3 = json.api_support_airatack.api_stage3;\r
 298                 if (stage3 != null)\r
 299                     CalcSimpleDamage(stage3.api_edam, _enemyHp);\r
 300             }\r
 301         }\r
 302 \r
 303         private void CalcAirBaseAttackDamage(dynamic json)\r
 304         {\r
 305             foreach (var entry in json)\r
 306             {\r
 307                 if (!entry.api_stage3() || entry.api_stage3 == null)\r
 308                     continue;\r
 309                 CalcSimpleDamage(entry.api_stage3.api_edam, _enemyHp);\r
 310                 if (entry.api_stage3_combined())\r
 311                     CalcSimpleDamage(entry.api_stage3_combined.api_edam, _enemyGuardHp);\r
 312             }\r
 313         }\r
 314 \r
 315         private void CalcSimpleDamage(dynamic json, Record[] friend, int[] enemy)\r
 316         {\r
 317             if (json.api_fdam())\r
 318                 CalcSimpleDamage(json.api_fdam, friend);\r
 319             if (json.api_edam())\r
 320                 CalcSimpleDamage(json.api_edam, enemy);\r
 321         }\r
 322 \r
 323         private void CalcSimpleDamage(dynamic json, Record[] friend, int[] enemy, int[] enemyGuard)\r
 324         {\r
 325             CalcSimpleDamage(json.api_fdam, friend);\r
 326             var damage = (int[])json.api_edam;\r
 327             for (var i = 0; i < enemy.Length; i++)\r
 328                 enemy[i] -= damage[i + 1];\r
 329             for (var i = 0; i < enemyGuard.Length; i++)\r
 330                 enemyGuard[i] -= damage[i + 6 + 1];\r
 331         }\r
 332 \r
 333         private void CalcSimpleDamage(dynamic rawDamage, Record[] result)\r
 334         {\r
 335             var damage = (int[])rawDamage;\r
 336             for (var i = 0; i < result.Length; i++)\r
 337                 result[i].ApplyDamage(damage[i + 1]);\r
 338         }\r
 339 \r
 340         private void CalcSimpleDamage(dynamic rawDamage, int[] result)\r
 341         {\r
 342             var damage = (int[])rawDamage;\r
 343             for (var i = 0; i < result.Length; i++)\r
 344                 result[i] -= damage[i + 1];\r
 345         }\r
 346 \r
 347         private void CalcHougekiDamage(dynamic hougeki, Record[] friend, int[] enemy)\r
 348         {\r
 349             var targets = ((dynamic[])hougeki.api_df_list).Skip(1).SelectMany(x => (int[])x);\r
 350             var damages = ((dynamic[])hougeki.api_damage).Skip(1).SelectMany(x => (int[])x);\r
 351             foreach (var hit in targets.Zip(damages, (t, d) => new {t, d}))\r
 352             {\r
 353                 if (hit.t == -1)\r
 354                     continue;\r
 355                 if (hit.t <= 6)\r
 356                     friend[hit.t - 1].ApplyDamage(hit.d);\r
 357                 else\r
 358                     enemy[(hit.t - 1) % 6] -= hit.d;\r
 359             }\r
 360         }\r
 361 \r
 362         private void CalcCombinedHougekiDamage(dynamic hougeki, Record[] friend, Record[] guard,\r
 363             int[] enemy, int[] enemyGuard)\r
 364         {\r
 365             var targets = ((dynamic[])hougeki.api_df_list).Skip(1).Select(x => (int[])x);\r
 366             var damages = ((dynamic[])hougeki.api_damage).Skip(1).Select(x => (int[])x);\r
 367             var eflags = ((int[])hougeki.api_at_eflag).Skip(1);\r
 368             foreach (var turn in\r
 369                 targets.Zip(damages, (t, d) => new {t, d}).\r
 370                     Zip(eflags, (td, e) => new {e, td.t, td.d}))\r
 371             {\r
 372                 foreach (var hit in turn.t.Zip(turn.d, (t, d) => new {t, d}))\r
 373                 {\r
 374                     if (turn.e == 1)\r
 375                     {\r
 376                         if (hit.t <= 6)\r
 377                             friend[hit.t - 1].ApplyDamage(hit.d);\r
 378                         else\r
 379                             guard[hit.t - 1].ApplyDamage(hit.d);\r
 380                     }\r
 381                     else\r
 382                     {\r
 383                         if (hit.t <= 6)\r
 384                             enemy[hit.t - 1] -= hit.d;\r
 385                         else\r
 386                             enemyGuard[(hit.t - 1) % 6] -= hit.d;\r
 387                     }\r
 388                 }\r
 389             }\r
 390         }\r
 391 \r
 392         public void InspectBattleResult(dynamic json)\r
 393         {\r
 394             ShowResult();\r
 395             CleanupResult();\r
 396             SetEscapeShips(json);\r
 397         }\r
 398 \r
 399         public void InspectPracticeResult(dynamic json)\r
 400         {\r
 401             ShowResult(false);\r
 402             CleanupResult();\r
 403         }\r
 404 \r
 405         private void ShowResult(bool warnDamagedShip = true)\r
 406         {\r
 407             if (_friend == null)\r
 408                 return;\r
 409             var ships = _guard.Length > 0\r
 410                 ? _shipInfo.GetShipStatuses(0).Concat(_shipInfo.GetShipStatuses(1)).ToArray()\r
 411                 : _shipInfo.GetShipStatuses(_fleet);\r
 412             foreach (var entry in ships.Zip(_friend.Concat(_guard), (ship, now) => new {ship, now}))\r
 413                 entry.now.UpdateShipStatus(entry.ship);\r
 414             if (warnDamagedShip)\r
 415                 _shipInfo.SetBadlyDamagedShips();\r
 416             else\r
 417                 _shipInfo.ClearBadlyDamagedShips();\r
 418             SetEnemyResultStatus();\r
 419         }\r
 420 \r
 421         private void SetEnemyResultStatus()\r
 422         {\r
 423             for (var i = 0; i < EnemyResultStatus.Length; i++)\r
 424             {\r
 425                 EnemyResultStatus[i].MaxHp = _enemyStartHp[i];\r
 426                 EnemyResultStatus[i].NowHp = _enemyHp[i];\r
 427             }\r
 428         }\r
 429 \r
 430         public void SetEscapeShips(dynamic json)\r
 431         {\r
 432             _escapingShips.Clear();\r
 433             if (!json.api_escape_flag() || (int)json.api_escape_flag == 0)\r
 434                 return;\r
 435             var damaged = (int)json.api_escape.api_escape_idx[0] - 1;\r
 436             _escapingShips.Add(_shipInfo.GetDeck(damaged / 6)[damaged % 6]);\r
 437             var escort = (int)json.api_escape.api_tow_idx[0] - 1;\r
 438             _escapingShips.Add(_shipInfo.GetDeck(escort / 6)[escort % 6]);\r
 439         }\r
 440 \r
 441         public void CauseCombinedBattleEscape()\r
 442         {\r
 443             _shipInfo.SetEscapedShips(_escapingShips);\r
 444             _shipInfo.SetBadlyDamagedShips();\r
 445         }\r
 446 \r
 447         private class Record\r
 448         {\r
 449             private ShipStatus _status;\r
 450             public int NowHp => _status.NowHp;\r
 451             public bool Escaped => _status.Escaped;\r
 452             public ShipStatus.Damage DamageLevel => _status.DamageLevel;\r
 453             public int StartHp;\r
 454 \r
 455             public static Record[] Setup(ShipStatus[] ships) =>\r
 456                 (from s in ships select new Record {_status = (ShipStatus)s.Clone(), StartHp = s.NowHp}).ToArray();\r
 457 \r
 458             public void ApplyDamage(int damage)\r
 459             {\r
 460                 if (_status.NowHp > damage)\r
 461                 {\r
 462                     _status.NowHp -= damage;\r
 463                     return;\r
 464                 }\r
 465                 _status.NowHp = 0;\r
 466                 foreach (var item in new[] {_status.SlotEx}.Concat(_status.Slot))\r
 467                 {\r
 468                     if (item.Spec.Id == 42)\r
 469                     {\r
 470                         _status.NowHp = (int)(_status.MaxHp * 0.2);\r
 471                         ConsumeSlotItem(_status, 42);\r
 472                         break;\r
 473                     }\r
 474                     if (item.Spec.Id == 43)\r
 475                     {\r
 476                         _status.NowHp = _status.MaxHp;\r
 477                         ConsumeSlotItem(_status, 43);\r
 478                         break;\r
 479                     }\r
 480                 }\r
 481             }\r
 482 \r
 483             public void UpdateShipStatus(ShipStatus ship)\r
 484             {\r
 485                 ship.NowHp = NowHp;\r
 486                 ship.Slot = _status.Slot;\r
 487                 ship.SlotEx = _status.SlotEx;\r
 488             }\r
 489         }\r
 490 \r
 491         private BattleResultRank CalcLdAirBattleRank()\r
 492         {\r
 493             var combined = _friend.Concat(_guard).ToArray();\r
 494             var friendNowShips = combined.Count(r => r.NowHp > 0);\r
 495             var friendGauge = combined.Sum(r => r.StartHp - r.NowHp);\r
 496             var friendSunk = combined.Count(r => r.NowHp == 0);\r
 497             var friendGaugeRate = Floor((double)friendGauge / combined.Sum(r => r.StartHp) * 100);\r
 498 \r
 499             if (friendSunk == 0)\r
 500             {\r
 501                 if (friendGauge == 0)\r
 502                     return BattleResultRank.P;\r
 503                 if (friendGaugeRate < 10)\r
 504                     return BattleResultRank.A;\r
 505                 if (friendGaugeRate < 20)\r
 506                     return BattleResultRank.B;\r
 507                 if (friendGaugeRate < 50)\r
 508                     return BattleResultRank.C;\r
 509                 return BattleResultRank.D;\r
 510             }\r
 511             if (friendSunk < friendNowShips)\r
 512                 return BattleResultRank.D;\r
 513             return BattleResultRank.E;\r
 514         }\r
 515 \r
 516         private BattleResultRank CalcResultRank()\r
 517         {\r
 518             var friend = _friend.Concat(_guard).ToArray();\r
 519             var enemyHp = _enemyHp.Concat(_enemyGuardHp).ToArray();\r
 520             var enemyStartHp = _enemyStartHp.Concat(_enemyGuardStartHp).ToArray();\r
 521 \r
 522             var friendCount = friend.Length;\r
 523             var friendStartHpTotal = 0;\r
 524             var friendNowHpTotal = 0;\r
 525             var friendSunk = 0;\r
 526             foreach (var ship in friend)\r
 527             {\r
 528                 if (ship.Escaped)\r
 529                     continue;\r
 530                 friendStartHpTotal += ship.StartHp;\r
 531                 friendNowHpTotal += ship.NowHp;\r
 532                 if (ship.NowHp == 0)\r
 533                     friendSunk++;\r
 534             }\r
 535             var friendGaugeRate = (int)((double)(friendStartHpTotal - friendNowHpTotal) / friendStartHpTotal * 100);\r
 536 \r
 537             var enemyCount = enemyHp.Length;\r
 538             var enemyStartHpTotal = enemyStartHp.Sum();\r
 539             var enemyNowHpTotal = enemyHp.Sum();\r
 540             var enemySunk = enemyHp.Count(hp => hp == 0);\r
 541             var enemyGaugeRate = (int)((double)(enemyStartHpTotal - enemyNowHpTotal) / enemyStartHpTotal * 100);\r
 542 \r
 543             if (friendSunk == 0 && enemySunk == enemyCount)\r
 544             {\r
 545                 if (friendNowHpTotal >= friendStartHpTotal)\r
 546                     return BattleResultRank.P;\r
 547                 return BattleResultRank.S;\r
 548             }\r
 549             if (friendSunk == 0 && enemySunk >= (int)(enemyCount * 0.7) && enemyCount > 1)\r
 550                 return BattleResultRank.A;\r
 551             if (friendSunk < enemySunk && enemyHp[0] == 0)\r
 552                 return BattleResultRank.B;\r
 553             if (friendCount == 1 && friend[0].DamageLevel == ShipStatus.Damage.Badly)\r
 554                 return BattleResultRank.D;\r
 555             if (enemyGaugeRate > friendGaugeRate * 2.5)\r
 556                 return BattleResultRank.B;\r
 557             if (enemyGaugeRate > friendGaugeRate * 0.9)\r
 558                 return BattleResultRank.C;\r
 559             if (friendCount > 1 && friendCount - 1 == friendSunk)\r
 560                 return BattleResultRank.E;\r
 561             return BattleResultRank.D;\r
 562         }\r
 563     }\r
 564 }