[Fix] ECS

Assets/Scripts/Commands/GameCommandHandlers.cs

@@ -69,6 +69,7 @@ namespace Minesweeper.Commands
             }
 
             var state = gameStateService.Current;
+            var generatedOnThisCommand = false;
             if (state != GameState.Preparing && state != GameState.Playing)
             {
                 return;
@@ -85,6 +86,8 @@ namespace Minesweeper.Commands
                 {
                     return;
                 }
+
+                generatedOnThisCommand = true;
             }
 
             var result = boardService.OpenCell(command.X, command.Y);
@@ -106,7 +109,15 @@ namespace Minesweeper.Commands
                 gameStateService.SetState(GameState.Playing);
             }
 
-            boardEcsSyncService.SyncBoard(boardService);
+            if (generatedOnThisCommand)
+            {
+                boardEcsSyncService.SyncBoard(boardService);
+            }
+            else
+            {
+                boardEcsSyncService.SyncCells(result.ChangedCells, boardService);
+            }
+
             boardEcsSyncService.SyncGameState(gameStateService.Current, boardService.IsGenerated);
         }
     }
@@ -145,7 +156,7 @@ namespace Minesweeper.Commands
                 return;
             }
 
-            boardEcsSyncService.SyncBoard(boardService);
+            boardEcsSyncService.SyncCells(result.ChangedCells, boardService);
             boardEcsSyncService.SyncGameState(gameStateService.Current, boardService.IsGenerated);
         }
     }

Assets/Scripts/Core/BoardActionResult.cs

@@ -1,19 +1,23 @@
+using System.Collections.Generic;
+
 namespace Minesweeper.Core
 {
     public readonly struct BoardActionResult
     {
-        public BoardActionResult(bool changed, bool hitMine, bool won, bool invalid)
+        public BoardActionResult(bool changed, bool hitMine, bool won, bool invalid, IReadOnlyList<BoardCellData> changedCells = null)
         {
             Changed = changed;
             HitMine = hitMine;
             Won = won;
             Invalid = invalid;
+            ChangedCells = changedCells;
         }
 
         public bool Changed { get; }
         public bool HitMine { get; }
         public bool Won { get; }
         public bool Invalid { get; }
+        public IReadOnlyList<BoardCellData> ChangedCells { get; }
 
         public static BoardActionResult NoChange => new BoardActionResult(false, false, false, false);
         public static BoardActionResult InvalidAction => new BoardActionResult(false, false, false, true);

Assets/Scripts/Core/BoardService.cs

@@ -7,6 +7,7 @@ namespace Minesweeper.Core
     {
         private readonly IGameSettingsService settingsService;
         private readonly Random random = new Random();
+        private readonly List<BoardCellData> changedCells = new List<BoardCellData>();
         private CellData[,] cells;
 
         public BoardService(IGameSettingsService settingsService)
@@ -19,7 +20,9 @@ namespace Minesweeper.Core
         public int MinesCount { get; private set; }
         public bool IsGenerated { get; private set; }
         public int OpenedSafeCellsCount { get; private set; }
+        public int FlaggedCellsCount { get; private set; }
         public int SafeCellsCount => Width * Height - MinesCount;
+        public IReadOnlyList<BoardCellData> LastChangedCells => changedCells;
 
         public void InitializeEmptyBoard()
         {
@@ -27,7 +30,9 @@ namespace Minesweeper.Core
             Height = settingsService.SizeY;
             MinesCount = Math.Min(settingsService.MinesCount, Width * Height - 1);
             OpenedSafeCellsCount = 0;
+            FlaggedCellsCount = 0;
             IsGenerated = false;
+            changedCells.Clear();
             cells = new CellData[Width, Height];
 
             for (var x = 0; x < Width; x++)
@@ -58,6 +63,7 @@ namespace Minesweeper.Core
         public BoardActionResult OpenCell(int x, int y)
         {
             EnsureInitialized();
+            changedCells.Clear();
 
             if (!IsGenerated || !IsInside(x, y))
             {
@@ -73,7 +79,8 @@ namespace Minesweeper.Core
             if (cell.IsMine)
             {
                 cell.IsOpened = true;
-                return new BoardActionResult(true, true, false, false);
+                AddChangedCell(cell);
+                return new BoardActionResult(true, true, false, false, changedCells);
             }
 
             if (cell.NeighborMines == 0)
@@ -85,12 +92,13 @@ namespace Minesweeper.Core
                 OpenSafeCell(cell);
             }
 
-            return new BoardActionResult(true, false, IsWin(), false);
+            return new BoardActionResult(true, false, IsWin(), false, changedCells);
         }
 
         public BoardActionResult ToggleFlag(int x, int y)
         {
             EnsureInitialized();
+            changedCells.Clear();
 
             if (!IsInside(x, y))
             {
@@ -103,8 +111,19 @@ namespace Minesweeper.Core
                 return BoardActionResult.NoChange;
             }
 
-            cell.IsFlagged = !cell.IsFlagged;
-            return new BoardActionResult(true, false, false, false);
+            if (cell.IsFlagged)
+            {
+                cell.IsFlagged = false;
+                FlaggedCellsCount--;
+            }
+            else
+            {
+                cell.IsFlagged = true;
+                FlaggedCellsCount++;
+            }
+
+            AddChangedCell(cell);
+            return new BoardActionResult(true, false, false, false, changedCells);
         }
 
         public bool IsInside(int x, int y)
@@ -273,6 +292,12 @@ namespace Minesweeper.Core
 
             cell.IsOpened = true;
             OpenedSafeCellsCount++;
+            AddChangedCell(cell);
+        }
+
+        private void AddChangedCell(CellData cell)
+        {
+            changedCells.Add(ToData(cell));
         }
 
         private bool IsWin()

Assets/Scripts/Core/IBoardService.cs

@@ -9,7 +9,9 @@ namespace Minesweeper.Core
         int MinesCount { get; }
         bool IsGenerated { get; }
         int OpenedSafeCellsCount { get; }
+        int FlaggedCellsCount { get; }
         int SafeCellsCount { get; }
+        IReadOnlyList<BoardCellData> LastChangedCells { get; }
 
         void InitializeEmptyBoard();
         bool GenerateAfterFirstClick(int safeX, int safeY);

Assets/Scripts/ECS/BoardEcsSyncService.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using Minesweeper.Core;
 using Minesweeper.ECS.Components;
 using Unity.Collections;
@@ -7,6 +8,10 @@ namespace Minesweeper.ECS
 {
     public sealed class BoardEcsSyncService : IBoardEcsSyncService
     {
+        private readonly Dictionary<int, Entity> cellsByIndex = new Dictionary<int, Entity>();
+        private int syncedWidth;
+        private int syncedHeight;
+
         public void ClearBoard()
         {
             if (!TryGetEntityManager(out var entityManager))
@@ -15,6 +20,9 @@ namespace Minesweeper.ECS
             }
 
             ClearCells(entityManager);
+            cellsByIndex.Clear();
+            syncedWidth = 0;
+            syncedHeight = 0;
         }
 
         public void SyncBoard(IBoardService boardService)
@@ -24,14 +32,27 @@ namespace Minesweeper.ECS
                 return;
             }
 
-            ClearCells(entityManager);
+            if (syncedWidth != boardService.Width || syncedHeight != boardService.Height || cellsByIndex.Count != boardService.Width * boardService.Height)
+            {
+                ClearCells(entityManager);
+                cellsByIndex.Clear();
+                syncedWidth = boardService.Width;
+                syncedHeight = boardService.Height;
+            }
+            else
+            {
+                ClearChangedTags(entityManager);
+            }
 
             var boardEntity = GetOrCreateSingleton<BoardConfigComponent>(entityManager);
             entityManager.SetComponentData(boardEntity, new BoardConfigComponent
             {
                 Width = boardService.Width,
                 Height = boardService.Height,
-                MinesCount = boardService.MinesCount
+                MinesCount = boardService.MinesCount,
+                OpenedSafeCellsCount = boardService.OpenedSafeCellsCount,
+                FlaggedCellsCount = boardService.FlaggedCellsCount,
+                IsGenerated = ToByte(boardService.IsGenerated)
             });
 
             var archetype = entityManager.CreateArchetype(typeof(CellComponent));
@@ -39,16 +60,45 @@ namespace Minesweeper.ECS
             for (var i = 0; i < cells.Count; i++)
             {
                 var cell = cells[i];
-                var entity = entityManager.CreateEntity(archetype);
-                entityManager.SetComponentData(entity, new CellComponent
+                var index = ToIndex(cell.X, cell.Y, boardService.Width);
+                if (!cellsByIndex.TryGetValue(index, out var entity) || !entityManager.Exists(entity))
                 {
-                    X = cell.X,
-                    Y = cell.Y,
-                    IsMine = ToByte(cell.IsMine),
-                    IsOpened = ToByte(cell.IsOpened),
-                    IsFlagged = ToByte(cell.IsFlagged),
-                    NeighborMines = cell.NeighborMines
-                });
+                    entity = entityManager.CreateEntity(archetype);
+                    cellsByIndex[index] = entity;
+                }
+
+                SetCell(entityManager, entity, cell, boardService.Width, false);
+            }
+        }
+
+        public void SyncCells(IReadOnlyList<BoardCellData> cells, IBoardService boardService)
+        {
+            if (cells == null || cells.Count == 0 || !TryGetEntityManager(out var entityManager))
+            {
+                return;
+            }
+
+            var boardEntity = GetOrCreateSingleton<BoardConfigComponent>(entityManager);
+            entityManager.SetComponentData(boardEntity, new BoardConfigComponent
+            {
+                Width = boardService.Width,
+                Height = boardService.Height,
+                MinesCount = boardService.MinesCount,
+                OpenedSafeCellsCount = boardService.OpenedSafeCellsCount,
+                FlaggedCellsCount = boardService.FlaggedCellsCount,
+                IsGenerated = ToByte(boardService.IsGenerated)
+            });
+
+            ClearChangedTags(entityManager);
+
+            for (var i = 0; i < cells.Count; i++)
+            {
+                var cell = cells[i];
+                var index = ToIndex(cell.X, cell.Y, boardService.Width);
+                if (cellsByIndex.TryGetValue(index, out var entity) && entityManager.Exists(entity))
+                {
+                    SetCell(entityManager, entity, cell, boardService.Width, true);
+                }
             }
         }
 
@@ -87,6 +137,37 @@ namespace Minesweeper.ECS
             query.Dispose();
         }
 
+        private static void ClearChangedTags(EntityManager entityManager)
+        {
+            var query = entityManager.CreateEntityQuery(typeof(CellChangedTag));
+            entityManager.RemoveComponent<CellChangedTag>(query);
+            query.Dispose();
+        }
+
+        private static void SetCell(EntityManager entityManager, Entity entity, BoardCellData cell, int width, bool markChanged)
+        {
+            entityManager.SetComponentData(entity, new CellComponent
+            {
+                X = cell.X,
+                Y = cell.Y,
+                Index = ToIndex(cell.X, cell.Y, width),
+                IsMine = ToByte(cell.IsMine),
+                IsOpened = ToByte(cell.IsOpened),
+                IsFlagged = ToByte(cell.IsFlagged),
+                NeighborMines = cell.NeighborMines
+            });
+
+            if (markChanged && !entityManager.HasComponent<CellChangedTag>(entity))
+            {
+                entityManager.AddComponent<CellChangedTag>(entity);
+            }
+        }
+
+        private static int ToIndex(int x, int y, int width)
+        {
+            return y * width + x;
+        }
+
         private static Entity GetOrCreateSingleton<T>(EntityManager entityManager) where T : unmanaged, IComponentData
         {
             var query = entityManager.CreateEntityQuery(typeof(T));

Assets/Scripts/ECS/Components/BoardConfigComponent.cs

@@ -7,5 +7,8 @@ namespace Minesweeper.ECS.Components
         public int Width;
         public int Height;
         public int MinesCount;
+        public int OpenedSafeCellsCount;
+        public int FlaggedCellsCount;
+        public byte IsGenerated;
     }
 }

Assets/Scripts/ECS/Components/CellChangedTag.cs

@@ -0,0 +1,8 @@
+using Unity.Entities;
+
+namespace Minesweeper.ECS.Components
+{
+    public struct CellChangedTag : IComponentData
+    {
+    }
+}

Assets/Scripts/ECS/Components/CellChangedTag.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 5702c8f40c71e7444a70e7aa73d8a9db

Assets/Scripts/ECS/Components/CellComponent.cs

@@ -6,9 +6,11 @@ namespace Minesweeper.ECS.Components
     {
         public int X;
         public int Y;
+        public int Index;
         public byte IsMine;
         public byte IsOpened;
         public byte IsFlagged;
         public int NeighborMines;
     }
+
 }

Assets/Scripts/ECS/IBoardEcsSyncService.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using Minesweeper.Core;
 
 namespace Minesweeper.ECS
@@ -6,6 +7,7 @@ namespace Minesweeper.ECS
     {
         void ClearBoard();
         void SyncBoard(IBoardService boardService);
+        void SyncCells(IReadOnlyList<BoardCellData> cells, IBoardService boardService);
         void SyncGameState(GameState state, bool hasFirstClick);
     }
 }

Assets/Scripts/Presentation/Presenters/GamePresenter.cs

@@ -70,7 +70,7 @@ namespace Minesweeper.Presentation.Presenters
         {
             topPanelPresenter.SetCellPressActive(false);
             commandDispatcher.Dispatch(new OpenCellCommand(x, y));
-            RefreshBoard();
+            RefreshChangedCellsOrBoard();
             topPanelPresenter.RefreshCounters();
             UpdateBoardInput();
         }
@@ -78,7 +78,7 @@ namespace Minesweeper.Presentation.Presenters
         private void OnCellFlagRequested(int x, int y)
         {
             commandDispatcher.Dispatch(new ToggleFlagCommand(x, y));
-            RefreshBoard();
+            RefreshChangedCellsOrBoard();
             topPanelPresenter.RefreshCounters();
             UpdateBoardInput();
         }
@@ -156,6 +156,17 @@ namespace Minesweeper.Presentation.Presenters
             boardView.Refresh(readModel.GetCells(), IsFinalState());
         }
 
+        private void RefreshChangedCellsOrBoard()
+        {
+            if (IsFinalState())
+            {
+                RefreshBoard();
+                return;
+            }
+
+            boardView.RefreshCells(readModel.GetChangedCells(), false);
+        }
+
         private bool IsFinalState()
         {
             var state = gameStateService.Current;

Assets/Scripts/Presentation/ReadModels/GameReadModel.cs

@@ -20,7 +20,7 @@ namespace Minesweeper.Presentation.ReadModels
         public int Width => boardService.Width > 0 ? boardService.Width : settingsService.SizeX;
         public int Height => boardService.Height > 0 ? boardService.Height : settingsService.SizeY;
         public int MinesCount => boardService.MinesCount > 0 ? boardService.MinesCount : settingsService.MinesCount;
-        public int FlaggedCellsCount => CountFlaggedCells();
+        public int FlaggedCellsCount => boardService.FlaggedCellsCount;
         public int RemainingMinesCount => MinesCount - FlaggedCellsCount;
 
         public bool TryGetCell(int x, int y, out BoardCellData cell)
@@ -33,19 +33,10 @@ namespace Minesweeper.Presentation.ReadModels
             return boardService.GetCells();
         }
 
-        private int CountFlaggedCells()
+        public IReadOnlyList<BoardCellData> GetChangedCells()
         {
-            var cells = boardService.GetCells();
-            var count = 0;
-            for (var i = 0; i < cells.Count; i++)
-            {
-                if (cells[i].IsFlagged)
-                {
-                    count++;
-                }
-            }
-
-            return count;
+            return boardService.LastChangedCells;
         }
+
     }
 }

Assets/Scripts/Presentation/ReadModels/IGameReadModel.cs

@@ -14,5 +14,6 @@ namespace Minesweeper.Presentation.ReadModels
 
         bool TryGetCell(int x, int y, out BoardCellData cell);
         IReadOnlyList<BoardCellData> GetCells();
+        IReadOnlyList<BoardCellData> GetChangedCells();
     }
 }

Assets/Scripts/Presentation/Views/BoardView.cs

@@ -25,6 +25,7 @@ namespace Minesweeper.Presentation.Views
         private readonly Dictionary<int, CellView> cellsByCoordinate = new Dictionary<int, CellView>();
         private readonly Stack<CellView> pooledCells = new Stack<CellView>();
         private IReadOnlyList<BoardCellData> currentCells;
+        private readonly List<BoardCellData> currentCellsCache = new List<BoardCellData>();
         private bool inputEnabled = true;
         private bool currentRevealUnflaggedMines;
         private bool resizeRefreshPending;
@@ -82,7 +83,7 @@ namespace Minesweeper.Presentation.Views
             Clear();
             currentBoardWidth = width;
             currentBoardHeight = height;
-            currentCells = cells;
+            CacheCurrentCells(cells);
             currentRevealUnflaggedMines = revealUnflaggedMines;
             var layoutWasEnabled = gridLayoutGroup != null && gridLayoutGroup.enabled;
             SetGridLayoutEnabled(false);
@@ -109,12 +110,23 @@ namespace Minesweeper.Presentation.Views
 
         public void Refresh(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines)
         {
-            currentCells = cells;
+            CacheCurrentCells(cells);
             currentRevealUnflaggedMines = revealUnflaggedMines;
 
+            RefreshCells(cells, revealUnflaggedMines);
+        }
+
+        public void RefreshCells(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines)
+        {
+            if (cells == null)
+            {
+                return;
+            }
+
             for (var i = 0; i < cells.Count; i++)
             {
                 var cell = cells[i];
+                UpdateCachedCell(cell);
                 if (cellsByCoordinate.TryGetValue(ToKey(cell.X, cell.Y), out var view))
                 {
                     view.Render(cell, uiConfig, currentPixelsPerUnitMultiplier, currentContentPadding, revealUnflaggedMines);
@@ -250,12 +262,19 @@ namespace Minesweeper.Presentation.Views
             {
                 view = pooledCells.Pop();
                 view.transform.SetParent(gridLayoutGroup.transform, false);
+                view.transform.SetAsLastSibling();
                 view.Initialize(cell.X, cell.Y);
                 view.gameObject.SetActive(true);
                 return view;
             }
 
-            return cellViewFactory.CreateCell(cell, gridLayoutGroup.transform);
+            view = cellViewFactory.CreateCell(cell, gridLayoutGroup.transform);
+            if (view != null)
+            {
+                view.transform.SetAsLastSibling();
+            }
+
+            return view;
         }
 
         private void Clear()
@@ -273,6 +292,31 @@ namespace Minesweeper.Presentation.Views
             }
 
             cellsByCoordinate.Clear();
+            currentCellsCache.Clear();
+            currentCells = null;
+        }
+
+        private void CacheCurrentCells(IReadOnlyList<BoardCellData> cells)
+        {
+            currentCellsCache.Clear();
+            if (cells != null)
+            {
+                for (var i = 0; i < cells.Count; i++)
+                {
+                    currentCellsCache.Add(cells[i]);
+                }
+            }
+
+            currentCells = currentCellsCache;
+        }
+
+        private void UpdateCachedCell(BoardCellData cell)
+        {
+            var index = cell.Y * currentBoardWidth + cell.X;
+            if (index >= 0 && index < currentCellsCache.Count)
+            {
+                currentCellsCache[index] = cell;
+            }
         }
 
         private void PoolCell(CellView cell)

Assets/Scripts/Presentation/Views/IBoardView.cs

@@ -17,6 +17,7 @@ namespace Minesweeper.Presentation.Views
         void Hide();
         void Rebuild(IReadOnlyList<BoardCellData> cells, int width, int height, ICellViewFactory cellViewFactory, bool revealUnflaggedMines);
         void Refresh(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines);
+        void RefreshCells(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines);
         void SetInputEnabled(bool enabled);
     }
 }

Assets/Scripts/Presentation/Views/NullBoardView.cs

@@ -16,6 +16,7 @@ namespace Minesweeper.Presentation.Views
         public void Hide() { }
         public void Rebuild(IReadOnlyList<BoardCellData> cells, int width, int height, ICellViewFactory cellViewFactory, bool revealUnflaggedMines) { }
         public void Refresh(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines) { }
+        public void RefreshCells(IReadOnlyList<BoardCellData> cells, bool revealUnflaggedMines) { }
         public void SetInputEnabled(bool enabled) { }
     }
 }