public bool ReadFromMemory(byte[] filebuffer, bool skipId0 = false)
{
_regionOrderList.Clear();
_regionMap.Clear();
try
{
byte[] bytes;
using (MemoryStream fs = new MemoryStream(filebuffer))
{
using (BinaryReader br = new BinaryReader(fs))
{
bytes = br.ReadBytes(Marshal.SizeOf(typeof(SMapRegionHeader)));
Header = (SMapRegionHeader)RegionUtility.ByteToStruct(bytes, typeof(SMapRegionHeader));
for (int i = 0; i < Header.iNumRegion; ++i)
{
int id = br.ReadInt32();
int nGridNum = br.ReadInt32();
if (id == 0 && skipId0) //跳过id0
{
//跳过读取数据
br.ReadBytes(nGridNum * Marshal.SizeOf(typeof(uint)));
continue;
}
//Vector2 mins = new Vector2(99999.0f, 99999.0f);
//Vector2 maxs = new Vector2(-99999.0f, -99999.0f);
HashSet <uint> gridSet = new HashSet <uint>();
for (int k = 0; k < nGridNum; ++k)
{
uint data = br.ReadUInt32();
gridSet.Add(data);
}
FileRegion fileRegion = new FileRegion();
fileRegion.Id = id;
fileRegion.GridNum = nGridNum;
fileRegion.RegionGridSet = gridSet;
//添加region
_regionMap.Add(fileRegion.Id, fileRegion);
_regionOrderList.Add(fileRegion);
}
}
}
}
catch (IOException)
{
return(false);
}
_regionOrderList.Sort(CompareFileRegion);
_fInvGridSize = 1.0f / Header.fGridSize;
_fLeft = -Header.fWorldWid * 0.5f;
_fTop = Header.fWorldLen * 0.5f;
return(true);
}
public bool ReadFile(string filename)
{
_regionOrderList.Clear();
_regionMap.Clear();
if (!File.Exists(filename))
{
return(false);
}
try
{
byte[] bytes;
using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read))
{
using (BinaryReader br = new BinaryReader(fs))
{
bytes = br.ReadBytes(Marshal.SizeOf(typeof(SMapRegionHeader)));
Header = (SMapRegionHeader)RegionUtility.ByteToStruct(bytes, typeof(SMapRegionHeader));
for (int i = 0; i < Header.iNumRegion; ++i)
{
FileRegion fileRegion = new FileRegion();
fileRegion.Id = br.ReadInt32();
fileRegion.GridNum = br.ReadInt32();
HashSet <uint> gridSet = new HashSet <uint>();
for (int k = 0; k < fileRegion.GridNum; ++k)
{
uint data = br.ReadUInt32();
gridSet.Add(data);
}
fileRegion.RegionGridSet = gridSet;
//添加region
_regionMap.Add(fileRegion.Id, fileRegion);
_regionOrderList.Add(fileRegion);
}
}
}
}
catch (Exception ex)
{
return(false);
}
_regionOrderList.Sort(CompareFileRegion);
_fInvGridSize = 1.0f / Header.fGridSize;
_fLeft = -Header.fWorldWid * 0.5f;
_fTop = Header.fWorldLen * 0.5f;
return(true);
}
public bool WriteFile(string filename)
{
if (Header.version < FileMapRegion.VERSION)
{
return(false);
}
try
{
FileStream fs = new FileStream(filename, FileMode.Create, FileAccess.ReadWrite);
BinaryWriter bw = new BinaryWriter(fs);
byte[] headerBytes = RegionUtility.StructToBytes(Header, Marshal.SizeOf(typeof(SMapRegionHeader)));
bw.Write(headerBytes);
for (int i = 0; i < _regionOrderList.Count; ++i)
{
FileRegion fileRegion = _regionOrderList[i];
bw.Write(fileRegion.Id);
bw.Write(fileRegion.GridNum);
foreach (uint d in fileRegion.RegionGridSet)
{
bw.Write(d);
}
}
bw.Close();
fs.Close();
}
catch (IOException)
{
return(false);
}
return(true);
}
public HashSet <uint> BuildRegionHashSet(out string errMsg)
{
var bezierCurve = _map.GetBezierCurve(_region.BezierCurveId);
if (bezierCurve == null)
{
errMsg = "RegionBuilder.BuildRegionHashSet: bezierCurve is null! BezierCurveId: " + _region.BezierCurveId;
return(null);
}
if (!bezierCurve.Closed)
{
errMsg = "RegionBuilder.BuildRegionHashSet: bezierCurve is not Closed! BezierCurveId: " + _region.BezierCurveId;
return(null);
}
errMsg = "";
float fInvGridSize = 1.0f / _mapGridSize;
Vector2 mins = _mapRect.max;
Vector2 maxs = _mapRect.min;
_polygon.Clear();
foreach (var point in bezierCurve.BezierNodes)
{
Vector2 v = new Vector2(point.PositionX, point.PositionZ);
_polygon.Add(v);
if (v.x < mins.x)
{
mins.x = v.x;
}
if (v.y < mins.y)
{
mins.y = v.y;
}
if (v.x > maxs.x)
{
maxs.x = v.x;
}
if (v.y > maxs.y)
{
maxs.y = v.y;
}
}
Rect rcRegion = new Rect(mins, maxs - mins);
int nWidth = (int)(_mapXLen * fInvGridSize);
int nHeight = (int)(_mapZLen * fInvGridSize);
HashSet <uint> regionSet = new HashSet <uint>();
Vector2 vOrg = new Vector2(_mapRect.xMin + 0.5f * _mapGridSize, _mapRect.yMax - 0.5f * _mapGridSize);
for (int h = 0; h < nHeight; ++h)
{
for (int w = 0; w < nWidth; ++w)
{
Vector2 vPos = vOrg + new Vector2(w * _mapGridSize, -h * _mapGridSize);
if (!RegionUtility.IsPointInRect(vPos, rcRegion)) //快速判断点是否在region的rect内
{
continue;
}
if (PolygonFunc.IsInPolygon2(vPos.x, vPos.y, _polygon))
{
uint col = (uint)w;
uint row = (uint)h;
uint data = (col | row << 16);
regionSet.Add(data);
}
}
}
return(regionSet);
}
public HashSet <uint> BuildRegionHashSet(out string errMsg)
{
if (_template == null)
{
errMsg = "ObstacleBuilder.BuildRegionHashSet: _template is null! ObstacleId: " + _obstacle.EntityInfos[0].EntityId;
return(null);
}
errMsg = "";
//欧拉角到方向
var quaternion = Quaternion.Euler(_obstacle.RotationX, _obstacle.RotationY, _obstacle.RotationZ);
Vector3 vDir = quaternion * Vector3.forward;
vDir.y = 0;
vDir.Normalize();
Vector3 vCenter = new Vector3(_obstacle.PositionX, _obstacle.PositionY, _obstacle.PositionZ);
Vector3 ExtX;
Vector3 ExtY;
Vector3 ExtZ;
Vector3 vExtent = new Vector3(_obstacle.Length * 0.5f, _template.Height * 0.5f, _template.Width * 0.5f);
Matrix4x4 mat;
RegionUtility.a3d_TransformMatrix(vDir, Vector3.up, vCenter, out mat);
ExtX = new Vector3(mat.m00, mat.m10, mat.m20) * vExtent.x;
ExtY = new Vector3(mat.m01, mat.m11, mat.m21) * vExtent.y;
ExtZ = new Vector3(mat.m02, mat.m12, mat.m22) * vExtent.z;
float fInvGridSize = 1.0f / _mapGridSize;
Vector2 mins = _mapRect.max;
Vector2 maxs = _mapRect.min;
Vector3[] points = new Vector3[4];
points[0] = vCenter - ExtX + ExtY + ExtZ;
points[1] = points[0] + 2 * ExtX;
points[2] = points[1] - 2 * ExtZ;
points[3] = points[2] - 2 * ExtX;
_polygon.Clear();
foreach (var point in points)
{
Vector2 v = new Vector2(point.x, point.z);
_polygon.Add(v);
if (v.x < mins.x)
{
mins.x = v.x;
}
if (v.y < mins.y)
{
mins.y = v.y;
}
if (v.x > maxs.x)
{
maxs.x = v.x;
}
if (v.y > maxs.y)
{
maxs.y = v.y;
}
}
Rect rcRegion = new Rect(mins, maxs - mins);
int nWidth = (int)(_mapXLen * fInvGridSize);
int nHeight = (int)(_mapZLen * fInvGridSize);
HashSet <uint> regionSet = new HashSet <uint>();
Vector2 vOrg = new Vector2(_mapRect.xMin + 0.5f * _mapGridSize, _mapRect.yMax - 0.5f * _mapGridSize);
for (int h = 0; h < nHeight; ++h)
{
for (int w = 0; w < nWidth; ++w)
{
Vector2 vPos = vOrg + new Vector2(w * _mapGridSize, -h * _mapGridSize);
if (!RegionUtility.IsPointInRect(vPos, rcRegion)) //快速判断点是否在region的rect内
{
continue;
}
if (PolygonFunc.IsInPolygon2(vPos.x, vPos.y, _polygon))
{
uint col = (uint)w;
uint row = (uint)h;
uint data = (col | row << 16);
regionSet.Add(data);
}
}
}
if (regionSet.Count == 0)
{
errMsg = HobaText.Format("ObstacleBuilder.BuildRegionHashSet: RegionSet Count is zero! ObstacleId: {0}, EntityGeneratorId: {1} generator len: {2}, template wid: {3}, template hei: {4}",
_obstacle.EntityInfos[0].EntityId, _obstacle.Id, _obstacle.Length, _template.Width, _template.Height);
}
return(regionSet);
}
