public unsafe bool LoadTiles(int surfaceId, Dictionary <int2, NavMeshTile> tiles)
{
string path = GetPath(surfaceId, typeof(NavMeshTile).Name, null);
if (!File.Exists(path))
{
//Debug.LogFormat("Tiles not found id:{0}", surfaceId);
return(false);
}
using (StreamBinaryReader reader = new StreamBinaryReader(path))
{
int tileCount = reader.ReadInt();
for (int i = 0; i < tileCount; i++)
{
int tileSize = reader.ReadInt();
byte[] data = new byte[tileSize];
fixed(byte *dataPtr = data)
{
reader.ReadBytes(dataPtr, tileSize);
}
NavMeshTile tile = new NavMeshTile();
tile.Data = data;
tiles[tile.Coord] = tile;
}
}
return(true);
}
public void GetTileGeometry(AiNativeList <float3> vertices, AiNativeList <int> indices)
{
AiNativeList <float3> tileVerts = new AiNativeList <float3>(2);
AiNativeList <int> tileIndices = new AiNativeList <int>(2);
foreach (byte[] data in Tiles)
{
NavMeshTile tile = new NavMeshTile();
tile.Data = data;
tile.GetTileVertices(tileVerts, tileIndices);
// Copy vertices
int vbase = vertices.Length;
for (int i = 0; i < tileVerts.Length; i++)
{
vertices.Add(tileVerts[i]);
}
// Copy indices with offset applied
for (int i = 0; i < tileIndices.Length; i++)
{
indices.Add(tileIndices[i] + vbase);
}
tileVerts.Clear();
tileIndices.Clear();
}
tileVerts.Dispose();
tileIndices.Dispose();
}
private unsafe int BuildTile(int2 tileCoordinate, NavMeshBuildSettings buildSettings, NavAgentSettings agentSettings,
NavMeshBuildInput buildInput, long buildTimeStamp, out NavMeshTile meshTile)
{
meshTile = null;
if (buildInput.AreasLength != buildInput.IndicesLength / 3)
{
return(-1001);
}
if (buildInput.VerticesLength <= 0 || buildInput.IndicesLength <= 0)
{
return(-1000);
}
DtBoundingBox tileBoundingBox = NavMeshBuildUtils.CalculateTileBoundingBox(buildSettings, tileCoordinate);
NavMeshBuildUtils.SnapBoundingBoxToCellHeight(buildSettings, ref tileBoundingBox);
tileBoundingBox.min.y = HeightBounds.min.y;
tileBoundingBox.max.y = HeightBounds.max.y;
IntPtr builder = Navigation.NavMesh.CreateBuilder();
DtBuildSettings internalBuildSettings = new DtBuildSettings
{
// Tile settings
BoundingBox = tileBoundingBox,
TilePosition = tileCoordinate,
TileSize = buildSettings.TileSize,
// General build settings
CellHeight = buildSettings.CellHeight,
CellSize = buildSettings.CellSize,
RegionMinArea = buildSettings.MinRegionArea,
RegionMergeArea = buildSettings.RegionMergeArea,
EdgeMaxLen = buildSettings.MaxEdgeLen,
EdgeMaxError = buildSettings.MaxEdgeError,
DetailSampleDist = buildSettings.DetailSamplingDistance,
DetailSampleMaxError = buildSettings.MaxDetailSamplingError,
// Agent settings
AgentHeight = agentSettings.Height,
AgentRadius = agentSettings.Radius,
AgentMaxClimb = agentSettings.MaxClimb,
AgentMaxSlope = agentSettings.MaxSlope
};
Navigation.NavMesh.SetSettings(builder, new IntPtr(&internalBuildSettings));
IntPtr buildResultPtr = Navigation.NavMesh.Build2(builder, buildInput.Vertices, buildInput.VerticesLength, buildInput.Indices, buildInput.IndicesLength, buildInput.Areas);
DtGeneratedData *generatedDataPtr = (DtGeneratedData *)buildResultPtr;
if (generatedDataPtr->Success && generatedDataPtr->NavmeshDataLength > 0)
{
meshTile = new NavMeshTile();
// Copy the generated navigationMesh data
meshTile.Data = new byte[generatedDataPtr->NavmeshDataLength + sizeof(long)];
Marshal.Copy(generatedDataPtr->NavmeshData, meshTile.Data, 0, generatedDataPtr->NavmeshDataLength);
// Append time stamp
byte[] timeStamp = BitConverter.GetBytes(buildTimeStamp);
for (int i = 0; i < timeStamp.Length; i++)
{
meshTile.Data[meshTile.Data.Length - sizeof(long) + i] = timeStamp[i];
}
}
int error = generatedDataPtr->Error;
Navigation.NavMesh.DestroyBuilder(builder);
return(error);
}
