第12部分：保存和加载

• 跟踪地形的类型，而不是颜色。
• 创建一个文件。
• 我们将数据写入文件，然后读取它。
• 我们序列化单元格数据。
• 减小文件大小。

地形类型

移动颜色阵列

  public static Color[] colors; 

  public Color[] colors; … void Awake () { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); HexMetrics.colors = colors; … } … void OnEnable () { if (!HexMetrics.noiseSource) { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); HexMetrics.colors = colors; } } 

 // public Color defaultColor = Color.white; … void CreateCell (int x, int z, int i) { … HexCell cell = cells[i] = Instantiate<HexCell>(cellPrefab); cell.transform.localPosition = position; cell.coordinates = HexCoordinates.FromOffsetCoordinates(x, z); // cell.Color = defaultColor; … } 

单元重构

 // Color color; int terrainTypeIndex; 

  public Color Color { get { return HexMetrics.colors[terrainTypeIndex]; } // set { // … // } } 

  public int TerrainTypeIndex { get { return terrainTypeIndex; } set { if (terrainTypeIndex != value) { terrainTypeIndex = value; Refresh(); } } } 

编辑器重构

 // public Color[] colors; … // Color activeColor; … // bool applyColor; … // public void SelectColor (int index) { // applyColor = index >= 0; // if (applyColor) { // activeColor = colors[index]; // } // } … // void Awake () { // SelectColor(0); // } … void EditCell (HexCell cell) { if (cell) { // if (applyColor) { // cell.Color = activeColor; // } … } } 

  int activeTerrainTypeIndex; … public void SetTerrainTypeIndex (int index) { activeTerrainTypeIndex = index; } 

  void EditCell (HexCell cell) { if (cell) { if (activeTerrainTypeIndex >= 0) { cell.TerrainTypeIndex = activeTerrainTypeIndex; } … } } 

将数据保存到文件

  public void Save () { } public void Load () { } 

档案位置

  public void Save () { Debug.Log(Application.persistentDataPath); } 

文件创建

 using UnityEngine; using UnityEngine.EventSystems; using System.IO; public class HexMapEditor : MonoBehaviour { … } 

  public void Save () { string path = Path.Combine(Application.persistentDataPath, "test.map"); } 

  string path = Path.Combine(Application.persistentDataPath, "test.map"); File.Open(path, FileMode.Create); 

  string path = Path.Combine(Application.persistentDataPath, "test.map"); Stream fileStream = File.Open(path, FileMode.Create); fileStream.Close(); 

写入文件

  string path = Path.Combine(Application.persistentDataPath, "test.map"); BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)); writer.Close(); 

  BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)); writer.Write(123); writer.Close(); 

我们释放资源

  using ( BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)) ) { writer.Write(123); } // writer.Close(); 

资料检索

  public void Load () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using ( BinaryReader reader = new BinaryReader(File.Open(path, FileMode.Open)) ) { } } 

  using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { } 

  using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { Debug.Log(reader.ReadInt32()); } 

写入和读取地图数据

 using UnityEngine; using System.IO; public class HexCell : MonoBehaviour { … public void Save (BinaryWriter writer) { } public void Load (BinaryReader reader) { } } 

 using UnityEngine; using UnityEngine.UI; using System.IO; public class HexGrid : MonoBehaviour { … public void Save (BinaryWriter writer) { for (int i = 0; i < cells.Length; i++) { cells[i].Save(writer); } } public void Load (BinaryReader reader) { for (int i = 0; i < cells.Length; i++) { cells[i].Load(reader); } } } 

  public void Load (BinaryReader reader) { for (int i = 0; i < cells.Length; i++) { cells[i].Load(reader); } for (int i = 0; i < chunks.Length; i++) { chunks[i].Refresh(); } } 

  public void Save () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using ( BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)) ) { hexGrid.Save(writer); } } public void Load () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { hexGrid.Load(reader); } } 

保存浮雕类型

  public void Save (BinaryWriter writer) { writer.Write(terrainTypeIndex); } public void Load (BinaryReader reader) { terrainTypeIndex = reader.ReadInt32(); } 

保存所有整数

  public void Save (BinaryWriter writer) { writer.Write(terrainTypeIndex); writer.Write(elevation); writer.Write(waterLevel); writer.Write(urbanLevel); writer.Write(farmLevel); writer.Write(plantLevel); writer.Write(specialIndex); } public void Load (BinaryReader reader) { terrainTypeIndex = reader.ReadInt32(); elevation = reader.ReadInt32(); waterLevel = reader.ReadInt32(); urbanLevel = reader.ReadInt32(); farmLevel = reader.ReadInt32(); plantLevel = reader.ReadInt32(); specialIndex = reader.ReadInt32(); } 

  void RefreshPosition () { Vector3 position = transform.localPosition; position.y = elevation * HexMetrics.elevationStep; position.y += (HexMetrics.SampleNoise(position).y * 2f - 1f) * HexMetrics.elevationPerturbStrength; transform.localPosition = position; Vector3 uiPosition = uiRect.localPosition; uiPosition.z = -position.y; uiRect.localPosition = uiPosition; } 

  public int Elevation { … set { if (elevation == value) { return; } elevation = value; RefreshPosition(); ValidateRivers(); … } } … public void Load (BinaryReader reader) { terrainTypeIndex = reader.ReadInt32(); elevation = reader.ReadInt32(); RefreshPosition(); … } 

保存所有数据

  public void Save (BinaryWriter writer) { writer.Write(terrainTypeIndex); writer.Write(elevation); writer.Write(waterLevel); writer.Write(urbanLevel); writer.Write(farmLevel); writer.Write(plantLevel); writer.Write(specialIndex); writer.Write(walled); writer.Write(hasIncomingRiver); writer.Write(hasOutgoingRiver); for (int i = 0; i < roads.Length; i++) { writer.Write(roads[i]); } } 

  writer.Write(hasIncomingRiver); writer.Write((int)incomingRiver); writer.Write(hasOutgoingRiver); writer.Write((int)outgoingRiver); 

  public void Load (BinaryReader reader) { terrainTypeIndex = reader.ReadInt32(); elevation = reader.ReadInt32(); RefreshPosition(); waterLevel = reader.ReadInt32(); urbanLevel = reader.ReadInt32(); farmLevel = reader.ReadInt32(); plantLevel = reader.ReadInt32(); specialIndex = reader.ReadInt32(); walled = reader.ReadBoolean(); hasIncomingRiver = reader.ReadBoolean(); incomingRiver = (HexDirection)reader.ReadInt32(); hasOutgoingRiver = reader.ReadBoolean(); outgoingRiver = (HexDirection)reader.ReadInt32(); for (int i = 0; i < roads.Length; i++) { roads[i] = reader.ReadBoolean(); } } 

缩小档案大小

数值间隔减少

  writer.Write((byte)terrainTypeIndex); writer.Write((byte)elevation); writer.Write((byte)waterLevel); writer.Write((byte)urbanLevel); writer.Write((byte)farmLevel); writer.Write((byte)plantLevel); writer.Write((byte)specialIndex); writer.Write(walled); writer.Write(hasIncomingRiver); writer.Write((byte)incomingRiver); writer.Write(hasOutgoingRiver); writer.Write((byte)outgoingRiver); 

  terrainTypeIndex = reader.ReadByte(); elevation = reader.ReadByte(); RefreshPosition(); waterLevel = reader.ReadByte(); urbanLevel = reader.ReadByte(); farmLevel = reader.ReadByte(); plantLevel = reader.ReadByte(); specialIndex = reader.ReadByte(); walled = reader.ReadBoolean(); hasIncomingRiver = reader.ReadBoolean(); incomingRiver = (HexDirection)reader.ReadByte(); hasOutgoingRiver = reader.ReadBoolean(); outgoingRiver = (HexDirection)reader.ReadByte(); 

河字节联盟

 // writer.Write(hasIncomingRiver); // writer.Write((byte)incomingRiver); if (hasIncomingRiver) { writer.Write((byte)(incomingRiver + 128)); } else { writer.Write((byte)0); } // writer.Write(hasOutgoingRiver); // writer.Write((byte)outgoingRiver); if (hasOutgoingRiver) { writer.Write((byte)(outgoingRiver + 128)); } else { writer.Write((byte)0); } 

 // hasIncomingRiver = reader.ReadBoolean(); // incomingRiver = (HexDirection)reader.ReadByte(); byte riverData = reader.ReadByte(); if (riverData >= 128) { hasIncomingRiver = true; incomingRiver = (HexDirection)(riverData - 128); } else { hasIncomingRiver = false; } // hasOutgoingRiver = reader.ReadBoolean(); // outgoingRiver = (HexDirection)reader.ReadByte(); riverData = reader.ReadByte(); if (riverData >= 128) { hasOutgoingRiver = true; outgoingRiver = (HexDirection)(riverData - 128); } else { hasOutgoingRiver = false; } 

将道路保存在一个字节中

  int roadFlags = 0; for (int i = 0; i < roads.Length; i++) { // writer.Write(roads[i]); if (roads[i]) { roadFlags |= 1 << i; } } writer.Write((byte)roadFlags); 

  int roadFlags = reader.ReadByte(); for (int i = 0; i < roads.Length; i++) { roads[i] = (roadFlags & (1 << i)) != 0; } 

为未来做好准备

  public void Save () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using ( BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)) ) { writer.Write(0); hexGrid.Save(writer); } } 

  public void Load () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { reader.ReadInt32(); hexGrid.Load(reader); } } 

  using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { int header = reader.ReadInt32(); if (header == 0) { hexGrid.Load(reader); } else { Debug.LogWarning("Unknown map format " + header); } } 

第13部分：卡管理

• 我们在“播放”模式下创建新卡。
• 添加对各种卡大小的支持。
• 将地图的大小添加到保存的数据。
• 保存和加载任意地图。
• 显示卡列表。

创建新地图

  void Awake () { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); HexMetrics.colors = colors; CreateMap(); } public void CreateMap () { cellCountX = chunkCountX * HexMetrics.chunkSizeX; cellCountZ = chunkCountZ * HexMetrics.chunkSizeZ; CreateChunks(); CreateCells(); } 

清除旧数据

  public void CreateMap () { if (chunks != null) { for (int i = 0; i < chunks.Length; i++) { Destroy(chunks[i].gameObject); } } … } 

指定单元格中的大小而不是片段

 // public int chunkCountX = 4, chunkCountZ = 3; public int cellCountX = 20, cellCountZ = 15; … // int cellCountX, cellCountZ; int chunkCountX, chunkCountZ; … public void CreateMap () { … // cellCountX = chunkCountX * HexMetrics.chunkSizeX; // cellCountZ = chunkCountZ * HexMetrics.chunkSizeZ; chunkCountX = cellCountX / HexMetrics.chunkSizeX; chunkCountZ = cellCountZ / HexMetrics.chunkSizeZ; CreateChunks(); CreateCells(); } 

  Vector3 ClampPosition (Vector3 position) { float xMax = (grid.cellCountX - 0.5f) * (2f * HexMetrics.innerRadius); position.x = Mathf.Clamp(position.x, 0f, xMax); float zMax = (grid.cellCountZ - 1) * (1.5f * HexMetrics.outerRadius); position.z = Mathf.Clamp(position.z, 0f, zMax); return position; } 

自定义卡尺寸

  void Awake () { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); HexMetrics.colors = colors; CreateMap(cellCountX, cellCountZ); } public void CreateMap (int x, int z) { … cellCountX = x; cellCountZ = z; chunkCountX = cellCountX / HexMetrics.chunkSizeX; chunkCountZ = cellCountZ / HexMetrics.chunkSizeZ; CreateChunks(); CreateCells(); } 

  public void CreateMap (int x, int z) { if ( x <= 0 || x % HexMetrics.chunkSizeX != 0 || z <= 0 || z % HexMetrics.chunkSizeZ != 0 ) { Debug.LogError("Unsupported map size."); return; } … } 

新卡菜单

 using UnityEngine; public class NewMapMenu : MonoBehaviour { public HexGrid hexGrid; } 

开闭

  public void Open () { gameObject.SetActive(true); } public void Close () { gameObject.SetActive(false); } 

创建新地图

  void CreateMap (int x, int z) { hexGrid.CreateMap(x, z); Close(); } 

  public void CreateSmallMap () { CreateMap(20, 15); } public void CreateMediumMap () { CreateMap(40, 30); } public void CreateLargeMap () { CreateMap(80, 60); } 

相机锁

  static HexMapCamera instance; … void Awake () { instance = this; swivel = transform.GetChild(0); stick = swivel.GetChild(0); } 

  public static bool Locked { set { instance.enabled = !value; } } 

  public void Open () { gameObject.SetActive(true); HexMapCamera.Locked = true; } public void Close () { gameObject.SetActive(false); HexMapCamera.Locked = false; } 

保持正确的相机位置

  public static void ValidatePosition () { instance.AdjustPosition(0f, 0f); } 

  void CreateMap (int x, int z) { hexGrid.CreateMap(x, z); HexMapCamera.ValidatePosition(); Close(); } 

保存地图大小

  public void Load (BinaryReader reader) { CreateMap(20, 15); for (int i = 0; i < cells.Length; i++) { cells[i].Load(reader); } for (int i = 0; i < chunks.Length; i++) { chunks[i].Refresh(); } } 

卡大小存储

  public void Save (BinaryWriter writer) { writer.Write(cellCountX); writer.Write(cellCountZ); for (int i = 0; i < cells.Length; i++) { cells[i].Save(writer); } } 

  public void Load (BinaryReader reader) { CreateMap(reader.ReadInt32(), reader.ReadInt32()); … } 

  public void Load () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { int header = reader.ReadInt32(); if (header == 0) { hexGrid.Load(reader, header); HexMapCamera.ValidatePosition(); } else { Debug.LogWarning("Unknown map format " + header); } } } 

新档案格式

  public void Save () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using ( BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)) ) { writer.Write(1); hexGrid.Save(writer); } } 

  public void Load () { string path = Path.Combine(Application.persistentDataPath, "test.map"); using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { int header = reader.ReadInt32(); if (header == 1) { hexGrid.Load(reader); HexMapCamera.ValidatePosition(); } else { Debug.LogWarning("Unknown map format " + header); } } } 

向后兼容

  if (header <= 1) { hexGrid.Load(reader, header); HexMapCamera.ValidatePosition(); } 

  public void Load (BinaryReader reader, int header) { int x = 20, z = 15; if (header >= 1) { x = reader.ReadInt32(); z = reader.ReadInt32(); } CreateMap(x, z); … } 

卡大小检查

  public bool CreateMap (int x, int z) { if ( x <= 0 || x % HexMetrics.chunkSizeX != 0 || z <= 0 || z % HexMetrics.chunkSizeZ != 0 ) { Debug.LogError("Unsupported map size."); return false; } … return true; } 

  public void Load (BinaryReader reader, int header) { int x = 20, z = 15; if (header >= 1) { x = reader.ReadInt32(); z = reader.ReadInt32(); } if (!CreateMap(x, z)) { return; } … } 

  if (x != cellCountX || z != cellCountZ) { if (!CreateMap(x, z)) { return; } } 

档案管理

菜单管理

 using UnityEngine; public class SaveLoadMenu : MonoBehaviour { public HexGrid hexGrid; public void Open () { gameObject.SetActive(true); HexMapCamera.Locked = true; } public void Close () { gameObject.SetActive(false); HexMapCamera.Locked = false; } } 

  bool saveMode; public void Open (bool saveMode) { this.saveMode = saveMode; gameObject.SetActive(true); HexMapCamera.Locked = true; } 

外观变化

 using UnityEngine; using UnityEngine.UI; public class SaveLoadMenu : MonoBehaviour { public Text menuLabel, actionButtonLabel; … } 

  public void Open (bool saveMode) { this.saveMode = saveMode; if (saveMode) { menuLabel.text = "Save Map"; actionButtonLabel.text = "Save"; } else { menuLabel.text = "Load Map"; actionButtonLabel.text = "Load"; } gameObject.SetActive(true); HexMapCamera.Locked = true; } 

输入卡名

  public InputField nameInput; 

 using UnityEngine; using UnityEngine.UI; using System.IO; public class SaveLoadMenu : MonoBehaviour { … string GetSelectedPath () { string mapName = nameInput.text; if (mapName.Length == 0) { return null; } return Path.Combine(Application.persistentDataPath, mapName + ".map"); } } 

保存和加载

  void Save (string path) { // string path = Path.Combine(Application.persistentDataPath, "test.map"); using ( BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)) ) { writer.Write(1); hexGrid.Save(writer); } } void Load (string path) { // string path = Path.Combine(Application.persistentDataPath, "test.map"); using (BinaryReader reader = new BinaryReader(File.OpenRead(path))) { int header = reader.ReadInt32(); if (header <= 1) { hexGrid.Load(reader, header); HexMapCamera.ValidatePosition(); } else { Debug.LogWarning("Unknown map format " + header); } } } 

  void Load (string path) { if (!File.Exists(path)) { Debug.LogError("File does not exist " + path); return; } … } 

  public void Action () { string path = GetSelectedPath(); if (path == null) { return; } if (saveMode) { Save(path); } else { Load(path); } Close(); } 

地图清单项目

  public void SelectItem (string name) { nameInput.text = name; } 

 using UnityEngine; using UnityEngine.UI; public class SaveLoadItem : MonoBehaviour { public SaveLoadMenu menu; public string MapName { get { return mapName; } set { mapName = value; transform.GetChild(0).GetComponent<Text>().text = value; } } string mapName; public void Select () { menu.SelectItem(mapName); } } 

清单填写

  public RectTransform listContent; public SaveLoadItem itemPrefab; 

  void FillList () { string[] paths = Directory.GetFiles(Application.persistentDataPath, "*.map"); } 

 using UnityEngine; using UnityEngine.UI; using System; using System.IO; public class SaveLoadMenu : MonoBehaviour { … void FillList () { string[] paths = Directory.GetFiles(Application.persistentDataPath, "*.map"); Array.Sort(paths); } … } 

  Array.Sort(paths); for (int i = 0; i < paths.Length; i++) { SaveLoadItem item = Instantiate(itemPrefab); item.menu = this; item.MapName = paths[i]; item.transform.SetParent(listContent, false); } 

  item.MapName = Path.GetFileNameWithoutExtension(paths[i]); 

  public void Open (bool saveMode) { … FillList(); gameObject.SetActive(true); HexMapCamera.Locked = true; } 

  void FillList () { for (int i = 0; i < listContent.childCount; i++) { Destroy(listContent.GetChild(i).gameObject); } … } 

积分的安排

卡删除

  public void Delete () { string path = GetSelectedPath(); if (path == null) { return; } File.Delete(path); } 

  if (File.Exists(path)) { File.Delete(path); } 

  if (File.Exists(path)) { File.Delete(path); } nameInput.text = ""; FillList(); 

第14部分：浮雕纹理

• 使用顶点颜色创建splat贴图。
• 创建阵列纹理资产。
• 将高程索引添加到网格。
• 浮雕纹理之间的过渡。

三种类型的混合物

使用顶点颜色作为Splat贴图

  static Color color1 = new Color(1f, 0f, 0f); static Color color2 = new Color(0f, 1f, 0f); static Color color3 = new Color(0f, 0f, 1f); 

细胞中心

  void TriangulateWithoutRiver ( HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e ) { TriangulateEdgeFan(center, e, color1); … } 

河邻里

  void TriangulateAdjacentToRiver ( HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e ) { … TriangulateEdgeStrip(m, color1, e, color1); TriangulateEdgeFan(center, m, color1); … } 

河流

  void TriangulateWithRiverBeginOrEnd ( HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e ) { … TriangulateEdgeStrip(m, color1, e, color1); TriangulateEdgeFan(center, m, color1); … } 

  void TriangulateWithRiver ( HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e ) { … TriangulateEdgeStrip(m, color1, e, color1); terrain.AddTriangle(centerL, m.v1, m.v2); // terrain.AddTriangleColor(cell.Color); terrain.AddQuad(centerL, center, m.v2, m.v3); // terrain.AddQuadColor(cell.Color); terrain.AddQuad(center, centerR, m.v3, m.v4); // terrain.AddQuadColor(cell.Color); terrain.AddTriangle(centerR, m.v4, m.v5); // terrain.AddTriangleColor(cell.Color); terrain.AddTriangleColor(color1); terrain.AddQuadColor(color1); terrain.AddQuadColor(color1); terrain.AddTriangleColor(color1); … } 

排骨

  void TriangulateConnection ( HexDirection direction, HexCell cell, EdgeVertices e1 ) { … if (cell.GetEdgeType(direction) == HexEdgeType.Slope) { TriangulateEdgeTerraces(e1, cell, e2, neighbor, hasRoad); } else { TriangulateEdgeStrip(e1, color1, e2, color2, hasRoad); } … } 

  void TriangulateEdgeTerraces ( EdgeVertices begin, HexCell beginCell, EdgeVertices end, HexCell endCell, bool hasRoad ) { EdgeVertices e2 = EdgeVertices.TerraceLerp(begin, end, 1); Color c2 = HexMetrics.TerraceLerp(color1, color2, 1); TriangulateEdgeStrip(begin, color1, e2, c2, hasRoad); for (int i = 2; i < HexMetrics.terraceSteps; i++) { EdgeVertices e1 = e2; Color c1 = c2; e2 = EdgeVertices.TerraceLerp(begin, end, i); c2 = HexMetrics.TerraceLerp(color1, color2, i); TriangulateEdgeStrip(e1, c1, e2, c2, hasRoad); } TriangulateEdgeStrip(e2, c2, end, color2, hasRoad); } 

角度

  void TriangulateCorner ( Vector3 bottom, HexCell bottomCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { … else { terrain.AddTriangle(bottom, left, right); terrain.AddTriangleColor(color1, color2, color3); } features.AddWall(bottom, bottomCell, left, leftCell, right, rightCell); } 

  void TriangulateCornerTerraces ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { Vector3 v3 = HexMetrics.TerraceLerp(begin, left, 1); Vector3 v4 = HexMetrics.TerraceLerp(begin, right, 1); Color c3 = HexMetrics.TerraceLerp(color1, color2, 1); Color c4 = HexMetrics.TerraceLerp(color1, color3, 1); terrain.AddTriangle(begin, v3, v4); terrain.AddTriangleColor(color1, c3, c4); for (int i = 2; i < HexMetrics.terraceSteps; i++) { Vector3 v1 = v3; Vector3 v2 = v4; Color c1 = c3; Color c2 = c4; v3 = HexMetrics.TerraceLerp(begin, left, i); v4 = HexMetrics.TerraceLerp(begin, right, i); c3 = HexMetrics.TerraceLerp(color1, color2, i); c4 = HexMetrics.TerraceLerp(color1, color3, i); terrain.AddQuad(v1, v2, v3, v4); terrain.AddQuadColor(c1, c2, c3, c4); } terrain.AddQuad(v3, v4, left, right); terrain.AddQuadColor(c3, c4, color2, color3); } 

  void TriangulateBoundaryTriangle ( Vector3 begin, Color beginColor, Vector3 left, Color leftColor, Vector3 boundary, Color boundaryColor ) { Vector3 v2 = HexMetrics.Perturb(HexMetrics.TerraceLerp(begin, left, 1)); Color c2 = HexMetrics.TerraceLerp(beginColor, leftColor, 1); terrain.AddTriangleUnperturbed(HexMetrics.Perturb(begin), v2, boundary); terrain.AddTriangleColor(beginColor, c2, boundaryColor); for (int i = 2; i < HexMetrics.terraceSteps; i++) { Vector3 v1 = v2; Color c1 = c2; v2 = HexMetrics.Perturb(HexMetrics.TerraceLerp(begin, left, i)); c2 = HexMetrics.TerraceLerp(beginColor, leftColor, i); terrain.AddTriangleUnperturbed(v1, v2, boundary); terrain.AddTriangleColor(c1, c2, boundaryColor); } terrain.AddTriangleUnperturbed(v2, HexMetrics.Perturb(left), boundary); terrain.AddTriangleColor(c2, leftColor, boundaryColor); } 

  void TriangulateCornerTerracesCliff ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { … Color boundaryColor = Color.Lerp(color1, color3, b); TriangulateBoundaryTriangle( begin, color1, left, color2, boundary, boundaryColor ); if (leftCell.GetEdgeType(rightCell) == HexEdgeType.Slope) { TriangulateBoundaryTriangle( left, color2, right, color3, boundary, boundaryColor ); } else { terrain.AddTriangleUnperturbed( HexMetrics.Perturb(left), HexMetrics.Perturb(right), boundary ); terrain.AddTriangleColor(color2, color3, boundaryColor); } } 

  void TriangulateCornerCliffTerraces ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { … Color boundaryColor = Color.Lerp(color1, color2, b); TriangulateBoundaryTriangle( right, color3, begin, color1, boundary, boundaryColor ); if (leftCell.GetEdgeType(rightCell) == HexEdgeType.Slope) { TriangulateBoundaryTriangle( left, color2, right, color3, boundary, boundaryColor ); } else { terrain.AddTriangleUnperturbed( HexMetrics.Perturb(left), HexMetrics.Perturb(right), boundary ); terrain.AddTriangleColor(color2, color3, boundaryColor); } } 

纹理阵列

大师

 using UnityEditor; using UnityEngine; public class TextureArrayWizard : ScriptableWizard { } 

  static void CreateWizard () { ScriptableWizard.DisplayWizard<TextureArrayWizard>( "Create Texture Array", "Create" ); } 

  [MenuItem("Assets/Create/Texture Array")] static void CreateWizard () { … } 

  public Texture2D[] textures; 

让我们创造一些东西

  void OnWizardCreate () { } 

  void OnWizardCreate () { if (textures.Length == 0) { return; } } 

  if (textures.Length == 0) { return; } EditorUtility.SaveFilePanelInProject( "Save Texture Array", "Texture Array", "asset", "Save Texture Array" ); 

  string path = EditorUtility.SaveFilePanelInProject( "Save Texture Array", "Texture Array", "asset", "Save Texture Array" ); if (path.Length == 0) { return; } 

创建纹理数组

  if (path.Length == 0) { return; } Texture2D t = textures[0]; Texture2DArray textureArray = new Texture2DArray( t.width, t.height, textures.Length, t.format, t.mipmapCount > 1 ); 

  Texture2DArray textureArray = new Texture2DArray( t.width, t.height, textures.Length, t.format, t.mipmapCount > 1 ); textureArray.anisoLevel = t.anisoLevel; textureArray.filterMode = t.filterMode; textureArray.wrapMode = t.wrapMode; 

  textureArray.wrapMode = t.wrapMode; for (int i = 0; i < textures.Length; i++) { for (int m = 0; m < t.mipmapCount; m++) { Graphics.CopyTexture(textures[i], 0, m, textureArray, i, m); } } 

  for (int i = 0; i < textures.Length; i++) { … } AssetDatabase.CreateAsset(textureArray, path); 

贴图

着色器

 Shader "Custom/Terrain" { Properties { _Color ("Color", Color) = (1,1,1,1) _MainTex ("Terrain Texture Array", 2DArray) = "white" {} _Glossiness ("Smoothness", Range(0,1)) = 0.5 _Metallic ("Metallic", Range(0,1)) = 0.0 } … } 

  #pragma target 3.5 

 // sampler2D _MainTex; UNITY_DECLARE_TEX2DARRAY(_MainTex); 

  struct Input { // float2 uv_MainTex; float4 color : COLOR; float3 worldPos; }; 

  void surf (Input IN, inout SurfaceOutputStandard o) { float2 uv = IN.worldPos.xz * 0.02; fixed4 c = UNITY_SAMPLE_TEX2DARRAY(_MainTex, float3(uv, 0)); Albedo = c.rgb * _Color; o.Metallic = _Metallic; o.Smoothness = _Glossiness; o.Alpha = ca; } 

纹理选择

网格数据

  public bool useCollider, useColors, useUVCoordinates, useUV2Coordinates; public bool useTerrainTypes; [NonSerialized] List<Vector3> vertices, terrainTypes; 

  public void Clear () { … if (useTerrainTypes) { terrainTypes = ListPool<Vector3>.Get(); } triangles = ListPool<int>.Get(); } 

  public void Apply () { … if (useTerrainTypes) { hexMesh.SetUVs(2, terrainTypes); ListPool<Vector3>.Add(terrainTypes); } hexMesh.SetTriangles(triangles, 0); … } 

  public void AddTriangleTerrainTypes (Vector3 types) { terrainTypes.Add(types); terrainTypes.Add(types); terrainTypes.Add(types); } 

  public void AddQuadTerrainTypes (Vector3 types) { terrainTypes.Add(types); terrainTypes.Add(types); terrainTypes.Add(types); terrainTypes.Add(types); } 

排骨三角形的粉丝

  void TriangulateEdgeFan (Vector3 center, EdgeVertices edge, Color color) { terrain.AddTriangle(center, edge.v1, edge.v2); // terrain.AddTriangleColor(color); terrain.AddTriangle(center, edge.v2, edge.v3); // terrain.AddTriangleColor(color); terrain.AddTriangle(center, edge.v3, edge.v4); // terrain.AddTriangleColor(color); terrain.AddTriangle(center, edge.v4, edge.v5); // terrain.AddTriangleColor(color); terrain.AddTriangleColor(color1); terrain.AddTriangleColor(color1); terrain.AddTriangleColor(color1); terrain.AddTriangleColor(color1); } 

  void TriangulateEdgeFan (Vector3 center, EdgeVertices edge, float type) { … Vector3 types; types.x = types.y = types.z = type; terrain.AddTriangleTerrainTypes(types); terrain.AddTriangleTerrainTypes(types); terrain.AddTriangleTerrainTypes(types); terrain.AddTriangleTerrainTypes(types); } 

 // TriangulateEdgeFan(center, e, color1); TriangulateEdgeFan(center, e, cell.TerrainTypeIndex); 

肋条

  void TriangulateEdgeStrip ( EdgeVertices e1, Color c1, float type1, EdgeVertices e2, Color c2, float type2, bool hasRoad = false ) { terrain.AddQuad(e1.v1, e1.v2, e2.v1, e2.v2); terrain.AddQuad(e1.v2, e1.v3, e2.v2, e2.v3); terrain.AddQuad(e1.v3, e1.v4, e2.v3, e2.v4); terrain.AddQuad(e1.v4, e1.v5, e2.v4, e2.v5); terrain.AddQuadColor(c1, c2); terrain.AddQuadColor(c1, c2); terrain.AddQuadColor(c1, c2); terrain.AddQuadColor(c1, c2); Vector3 types; types.x = types.z = type1; types.y = type2; terrain.AddQuadTerrainTypes(types); terrain.AddQuadTerrainTypes(types); terrain.AddQuadTerrainTypes(types); terrain.AddQuadTerrainTypes(types); if (hasRoad) { TriangulateRoadSegment(e1.v2, e1.v3, e1.v4, e2.v2, e2.v3, e2.v4); } } 

 // TriangulateEdgeStrip(m, color1, e, color1); TriangulateEdgeStrip( m, color1, cell.TerrainTypeIndex, e, color1, cell.TerrainTypeIndex ); 

  void TriangulateConnection ( HexDirection direction, HexCell cell, EdgeVertices e1 ) { … if (cell.GetEdgeType(direction) == HexEdgeType.Slope) { TriangulateEdgeTerraces(e1, cell, e2, neighbor, hasRoad); } else { // TriangulateEdgeStrip(e1, color1, e2, color2, hasRoad); TriangulateEdgeStrip( e1, color1, cell.TerrainTypeIndex, e2, color2, neighbor.TerrainTypeIndex, hasRoad ); } … } 

  void TriangulateEdgeTerraces ( EdgeVertices begin, HexCell beginCell, EdgeVertices end, HexCell endCell, bool hasRoad ) { EdgeVertices e2 = EdgeVertices.TerraceLerp(begin, end, 1); Color c2 = HexMetrics.TerraceLerp(color1, color2, 1); float t1 = beginCell.TerrainTypeIndex; float t2 = endCell.TerrainTypeIndex; TriangulateEdgeStrip(begin, color1, t1, e2, c2, t2, hasRoad); for (int i = 2; i < HexMetrics.terraceSteps; i++) { EdgeVertices e1 = e2; Color c1 = c2; e2 = EdgeVertices.TerraceLerp(begin, end, i); c2 = HexMetrics.TerraceLerp(color1, color2, i); TriangulateEdgeStrip(e1, c1, t1, e2, c2, t2, hasRoad); } TriangulateEdgeStrip(e2, c2, t1, end, color2, t2, hasRoad); } 

角度

  void TriangulateCorner ( Vector3 bottom, HexCell bottomCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { … else { terrain.AddTriangle(bottom, left, right); terrain.AddTriangleColor(color1, color2, color3); Vector3 types; types.x = bottomCell.TerrainTypeIndex; types.y = leftCell.TerrainTypeIndex; types.z = rightCell.TerrainTypeIndex; terrain.AddTriangleTerrainTypes(types); } features.AddWall(bottom, bottomCell, left, leftCell, right, rightCell); } 

  void TriangulateCornerTerraces ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { Vector3 v3 = HexMetrics.TerraceLerp(begin, left, 1); Vector3 v4 = HexMetrics.TerraceLerp(begin, right, 1); Color c3 = HexMetrics.TerraceLerp(color1, color2, 1); Color c4 = HexMetrics.TerraceLerp(color1, color3, 1); Vector3 types; types.x = beginCell.TerrainTypeIndex; types.y = leftCell.TerrainTypeIndex; types.z = rightCell.TerrainTypeIndex; terrain.AddTriangle(begin, v3, v4); terrain.AddTriangleColor(color1, c3, c4); terrain.AddTriangleTerrainTypes(types); for (int i = 2; i < HexMetrics.terraceSteps; i++) { Vector3 v1 = v3; Vector3 v2 = v4; Color c1 = c3; Color c2 = c4; v3 = HexMetrics.TerraceLerp(begin, left, i); v4 = HexMetrics.TerraceLerp(begin, right, i); c3 = HexMetrics.TerraceLerp(color1, color2, i); c4 = HexMetrics.TerraceLerp(color1, color3, i); terrain.AddQuad(v1, v2, v3, v4); terrain.AddQuadColor(c1, c2, c3, c4); terrain.AddQuadTerrainTypes(types); } terrain.AddQuad(v3, v4, left, right); terrain.AddQuadColor(c3, c4, color2, color3); terrain.AddQuadTerrainTypes(types); } 

  void TriangulateBoundaryTriangle ( Vector3 begin, Color beginColor, Vector3 left, Color leftColor, Vector3 boundary, Color boundaryColor, Vector3 types ) { Vector3 v2 = HexMetrics.Perturb(HexMetrics.TerraceLerp(begin, left, 1)); Color c2 = HexMetrics.TerraceLerp(beginColor, leftColor, 1); terrain.AddTriangleUnperturbed(HexMetrics.Perturb(begin), v2, boundary); terrain.AddTriangleColor(beginColor, c2, boundaryColor); terrain.AddTriangleTerrainTypes(types); for (int i = 2; i < HexMetrics.terraceSteps; i++) { Vector3 v1 = v2; Color c1 = c2; v2 = HexMetrics.Perturb(HexMetrics.TerraceLerp(begin, left, i)); c2 = HexMetrics.TerraceLerp(beginColor, leftColor, i); terrain.AddTriangleUnperturbed(v1, v2, boundary); terrain.AddTriangleColor(c1, c2, boundaryColor); terrain.AddTriangleTerrainTypes(types); } terrain.AddTriangleUnperturbed(v2, HexMetrics.Perturb(left), boundary); terrain.AddTriangleColor(c2, leftColor, boundaryColor); terrain.AddTriangleTerrainTypes(types); } 

  void TriangulateCornerTerracesCliff ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { float b = 1f / (rightCell.Elevation - beginCell.Elevation); if (b < 0) { b = -b; } Vector3 boundary = Vector3.Lerp( HexMetrics.Perturb(begin), HexMetrics.Perturb(right), b ); Color boundaryColor = Color.Lerp(color1, color3, b); Vector3 types; types.x = beginCell.TerrainTypeIndex; types.y = leftCell.TerrainTypeIndex; types.z = rightCell.TerrainTypeIndex; TriangulateBoundaryTriangle( begin, color1, left, color2, boundary, boundaryColor, types ); if (leftCell.GetEdgeType(rightCell) == HexEdgeType.Slope) { TriangulateBoundaryTriangle( left, color2, right, color3, boundary, boundaryColor, types ); } else { terrain.AddTriangleUnperturbed( HexMetrics.Perturb(left), HexMetrics.Perturb(right), boundary ); terrain.AddTriangleColor(color2, color3, boundaryColor); terrain.AddTriangleTerrainTypes(types); } } 

  void TriangulateCornerCliffTerraces ( Vector3 begin, HexCell beginCell, Vector3 left, HexCell leftCell, Vector3 right, HexCell rightCell ) { float b = 1f / (leftCell.Elevation - beginCell.Elevation); if (b < 0) { b = -b; } Vector3 boundary = Vector3.Lerp( HexMetrics.Perturb(begin), HexMetrics.Perturb(left), b ); Color boundaryColor = Color.Lerp(color1, color2, b); Vector3 types; types.x = beginCell.TerrainTypeIndex; types.y = leftCell.TerrainTypeIndex; types.z = rightCell.TerrainTypeIndex; TriangulateBoundaryTriangle( right, color3, begin, color1, boundary, boundaryColor, types ); if (leftCell.GetEdgeType(rightCell) == HexEdgeType.Slope) { TriangulateBoundaryTriangle( left, color2, right, color3, boundary, boundaryColor, types ); } else { terrain.AddTriangleUnperturbed( HexMetrics.Perturb(left), HexMetrics.Perturb(right), boundary ); terrain.AddTriangleColor(color2, color3, boundaryColor); terrain.AddTriangleTerrainTypes(types); } } 

河流

  void TriangulateWithRiver ( HexDirection direction, HexCell cell, Vector3 center, EdgeVertices e ) { … terrain.AddTriangleColor(color1); terrain.AddQuadColor(color1); terrain.AddQuadColor(color1); terrain.AddTriangleColor(color1); Vector3 types; types.x = types.y = types.z = cell.TerrainTypeIndex; terrain.AddTriangleTerrainTypes(types); terrain.AddQuadTerrainTypes(types); terrain.AddQuadTerrainTypes(types); terrain.AddTriangleTerrainTypes(types); … } 

类型混合

  #pragma surface surf Standard fullforwardshadows vertex:vert #pragma target 3.5 … struct Input { float4 color : COLOR; float3 worldPos; float3 terrain; }; void vert (inout appdata_full v, out Input data) { UNITY_INITIALIZE_OUTPUT(Input, data); data.terrain = v.texcoord2.xyz; } 

  float4 GetTerrainColor (Input IN, int index) { float3 uvw = float3(IN.worldPos.xz * 0.02, IN.terrain[index]); float4 c = UNITY_SAMPLE_TEX2DARRAY(_MainTex, uvw); return c * IN.color[index]; } void surf (Input IN, inout SurfaceOutputStandard o) { … } 

  void surf (Input IN, inout SurfaceOutputStandard o) { // float2 uv = IN.worldPos.xz * 0.02; fixed4 c = GetTerrainColor(IN, 0) + GetTerrainColor(IN, 1) + GetTerrainColor(IN, 2); o.Albedo = c.rgb * _Color; o.Metallic = _Metallic; o.Smoothness = _Glossiness; o.Alpha = ca; } 

扫一扫

 // public Color Color { // get { // return HexMetrics.colors[terrainTypeIndex]; // } // } 

 // public Color[] colors; … void Awake () { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); // HexMetrics.colors = colors; CreateMap(cellCountX, cellCountZ); } … … void OnEnable () { if (!HexMetrics.noiseSource) { HexMetrics.noiseSource = noiseSource; HexMetrics.InitializeHashGrid(seed); // HexMetrics.colors = colors; } } 

 // public static Color[] colors; 

第15部分：距离

• 显示网格线。
• 在编辑和导航模式之间切换。
• 计算单元格之间的距离。
• 我们找到绕过障碍的方法。
• 我们考虑了搬家的可变成本。

网格显示

网格纹理

网格投影

  Properties { _Color ("Color", Color) = (1,1,1,1) _MainTex ("Terrain Texture Array", 2DArray) = "white" {} _GridTex ("Grid Texture", 2D) = "white" {} _Glossiness ("Smoothness", Range(0,1)) = 0.5 _Metallic ("Metallic", Range(0,1)) = 0.0 } 

  sampler2D _GridTex; … void surf (Input IN, inout SurfaceOutputStandard o) { fixed4 c = GetTerrainColor(IN, 0) + GetTerrainColor(IN, 1) + GetTerrainColor(IN, 2); fixed4 grid = tex2D(_GridTex, IN.worldPos.xz); o.Albedo = c.rgb * grid * _Color; o.Metallic = _Metallic; o.Smoothness = _Glossiness; o.Alpha = ca; } 

  float2 gridUV = IN.worldPos.xz; gridUV.x *= 1 / (4 * 8.66025404); gridUV.y *= 1 / (2 * 15.0); fixed4 grid = tex2D(_GridTex, gridUV); 

网格包含

  #pragma surface surf Standard fullforwardshadows vertex:vert #pragma target 3.5 #pragma multi_compile _ GRID_ON 

  fixed4 grid = 1; #if defined(GRID_ON) float2 gridUV = IN.worldPos.xz; gridUV.x *= 1 / (4 * 8.66025404); gridUV.y *= 1 / (2 * 15.0); grid = tex2D(_GridTex, gridUV); #endif o.Albedo = c.rgb * grid * _Color; 

  public Material terrainMaterial; … public void ShowGrid (bool visible) { if (visible) { terrainMaterial.EnableKeyword("GRID_ON"); } else { terrainMaterial.DisableKeyword("GRID_ON"); } } 

保存状态

  void Awake () { terrainMaterial.DisableKeyword("GRID_ON"); } 

编辑模式

编辑开关

  bool editMode; … public void SetEditMode (bool toggle) { editMode = toggle; } 

  void HandleInput () { Ray inputRay = Camera.main.ScreenPointToRay(Input.mousePosition); RaycastHit hit; if (Physics.Raycast(inputRay, out hit)) { HexCell currentCell = hexGrid.GetCell(hit.point); if (previousCell && previousCell != currentCell) { ValidateDrag(currentCell); } else { isDrag = false; } if (editMode) { EditCells(currentCell); } previousCell = currentCell; } else { previousCell = null; } } 

调试标签

  public void SetEditMode (bool toggle) { editMode = toggle; hexGrid.ShowUI(!toggle); } 

  void Awake () { gridCanvas = GetComponentInChildren<Canvas>(); cells = new HexCell[HexMetrics.chunkSizeX * HexMetrics.chunkSizeZ]; // ShowUI(false); } 

  void CreateCell (int x, int z, int i) { … Text label = Instantiate<Text>(cellLabelPrefab); label.rectTransform.anchoredPosition = new Vector2(position.x, position.z); // label.text = cell.coordinates.ToStringOnSeparateLines(); cell.uiRect = label.rectTransform; … } 

 // public void ShowUI (bool visible) { // hexGrid.ShowUI(visible); // } 

寻找距离

距离显示

  int distance; 

  void UpdateDistanceLabel () { Text label = uiRect.GetComponent<Text>(); label.text = distance.ToString(); } 

  public int Distance { get { return distance; } set { distance = value; UpdateDistanceLabel(); } } 

  public void FindDistancesTo (HexCell cell) { for (int i = 0; i < cells.Length; i++) { cells[i].Distance = 0; } } 

  if (editMode) { EditCells(currentCell); } else { hexGrid.FindDistancesTo(currentCell); } 

坐标之间的距离

  public void FindDistancesTo (HexCell cell) { for (int i = 0; i < cells.Length; i++) { cells[i].Distance = cell.coordinates.DistanceTo(cells[i].coordinates); } } 

  public int DistanceTo (HexCoordinates other) { return x - other.x; } 

  return x < other.x ? other.x - x : x - other.x; 

  return (x < other.x ? other.x - x : x - other.x) + (Y < other.Y ? other.Y - Y : Y - other.Y) + (z < other.z ? other.z - z : z - other.z); 

  return ((x < other.x ? other.x - x : x - other.x) + (Y < other.Y ? other.Y - Y : Y - other.Y) + (z < other.z ? other.z - z : z - other.z)) / 2; 

为什么总和等于距离的两倍？

, . , (1, −3, 2). . , . . , . .

.

克服障碍

搜索可视化

  public void FindDistancesTo (HexCell cell) { StartCoroutine(Search(cell)); } IEnumerator Search (HexCell cell) { WaitForSeconds delay = new WaitForSeconds(1 / 60f); for (int i = 0; i < cells.Length; i++) { yield return delay; cells[i].Distance = cell.coordinates.DistanceTo(cells[i].coordinates); } } 

  public void FindDistancesTo (HexCell cell) { StopAllCoroutines(); StartCoroutine(Search(cell)); } 

  public void Load (BinaryReader reader, int header) { StopAllCoroutines(); … } 

广度优先搜索

  IEnumerator Search (HexCell cell) { for (int i = 0; i < cells.Length; i++) { cells[i].Distance = int.MaxValue; } … } 

  void UpdateDistanceLabel () { Text label = uiRect.GetComponent<Text>(); label.text = distance == int.MaxValue ? "" : distance.ToString(); } 

  IEnumerator Search (HexCell cell) { for (int i = 0; i < cells.Length; i++) { cells[i].Distance = int.MaxValue; } WaitForSeconds delay = new WaitForSeconds(1 / 60f); Queue<HexCell> frontier = new Queue<HexCell>(); cell.Distance = 0; frontier.Enqueue(cell); // for (int i = 0; i < cells.Length; i++) { // yield return delay; // cells[i].Distance = // cell.coordinates.DistanceTo(cells[i].coordinates); // } } 

  frontier.Enqueue(cell); while (frontier.Count > 0) { yield return delay; HexCell current = frontier.Dequeue(); } 

  while (frontier.Count > 0) { yield return delay; HexCell current = frontier.Dequeue(); for (HexDirection d = HexDirection.NE; d <= HexDirection.NW; d++) { HexCell neighbor = current.GetNeighbor(d); if (neighbor != null) { neighbor.Distance = current.Distance + 1; frontier.Enqueue(neighbor); } } } 

  if (neighbor != null && neighbor.Distance == int.MaxValue) { neighbor.Distance = current.Distance + 1; frontier.Enqueue(neighbor); } 

避免饮水

  for (HexDirection d = HexDirection.NE; d <= HexDirection.NW; d++) { HexCell neighbor = current.GetNeighbor(d); if (neighbor == null || neighbor.Distance != int.MaxValue) { continue; } neighbor.Distance = current.Distance + 1; frontier.Enqueue(neighbor); } 

  if (neighbor == null || neighbor.Distance != int.MaxValue) { continue; } if (neighbor.IsUnderwater) { continue; } 

避免悬崖

  if (neighbor.IsUnderwater) { continue; } if (current.GetEdgeType(neighbor) == HexEdgeType.Cliff) { continue; } 

差旅费

快速道路

  int distance = current.Distance; if (current.HasRoadThroughEdge(d)) { distance += 1; } else { distance += 10; } neighbor.Distance = distance; 

边框排序

  List<HexCell> frontier = new List<HexCell>(); cell.Distance = 0; frontier.Add(cell); while (frontier.Count > 0) { yield return delay; HexCell current = frontier[0]; frontier.RemoveAt(0); for (HexDirection d = HexDirection.NE; d <= HexDirection.NW; d++) { … neighbor.Distance = distance; frontier.Add(neighbor); } } 

  frontier.Add(neighbor); frontier.Sort((x, y) => x.Distance.CompareTo(y.Distance)); 

  frontier.Sort(CompareDistances); … static int CompareDistances (HexCell x, HexCell y) { return x.Distance.CompareTo(y.Distance); } 

边框更新

  HexCell neighbor = current.GetNeighbor(d); if (neighbor == null) { continue; } if (neighbor.IsUnderwater) { continue; } if (current.GetEdgeType(neighbor) == HexEdgeType.Cliff) { continue; } int distance = current.Distance; if (current.HasRoadThroughEdge(d)) { distance += 1; } else { distance += 10; } if (neighbor.Distance == int.MaxValue) { neighbor.Distance = distance; frontier.Add(neighbor); } else if (distance < neighbor.Distance) { neighbor.Distance = distance; } frontier.Sort((x, y) => x.Distance.CompareTo(y.Distance)); 

斜坡

  HexEdgeType edgeType = current.GetEdgeType(neighbor); if (edgeType == HexEdgeType.Cliff) { continue; } int distance = current.Distance; if (current.HasRoadThroughEdge(d)) { distance += 1; } else { distance += edgeType == HexEdgeType.Flat ? 5 : 10; } 

救济对象

  if (current.HasRoadThroughEdge(d)) { distance += 1; } else { distance += edgeType == HexEdgeType.Flat ? 5 : 10; distance += neighbor.UrbanLevel + neighbor.FarmLevel + neighbor.PlantLevel; } 

墙壁

  if (current.HasRoadThroughEdge(d)) { distance += 1; } else if (current.Walled != neighbor.Walled) { continue; } else { distance += edgeType == HexEdgeType.Flat ? 5 : 10; distance += neighbor.UrbanLevel + neighbor.FarmLevel + neighbor.PlantLevel; }