public unsafe bool BuildSingleTile(NavMeshBuildInput single)
{
List <NavMeshBuildInput> inputs = new List <NavMeshBuildInput>()
{
single
};
return(BuildInputPerTile(inputs));
}
public unsafe NavMeshBuildInput ToBuildInput()
{
NavMeshBuildInput input = new NavMeshBuildInput();
input.TileBounds = new NavMeshTileBounds(Coord, BoundingBox);
input.Vertices = (float3 *)Vertices.GetUnsafePtr();
input.VerticesLength = Vertices.Length;
input.Indices = (int *)Indices.GetUnsafePtr();
input.IndicesLength = Indices.Length;
input.Areas = (byte *)Areas.GetUnsafePtr();
input.AreasLength = Areas.Length;
return(input);
}
private void NormalizeInputHeights(List <NavMeshBuildInput> inputs)
{
float minimumHeight = float.MaxValue;
float maximumHeight = float.MinValue;
for (int i = 0; i < inputs.Count; i++)
{
NavMeshBuildInput input = inputs[i];
maximumHeight = Math.Max(maximumHeight, input.TileBounds.Bounds.max.y);
minimumHeight = Math.Min(minimumHeight, input.TileBounds.Bounds.min.y);
}
for (int i = 0; i < inputs.Count; i++)
{
NavMeshBuildInput input = inputs[i];
input.TileBounds.Bounds.min.y = minimumHeight;
input.TileBounds.Bounds.max.y = maximumHeight;
inputs[i] = input;
}
}
public unsafe bool BuildAllFromSingleInput(NavMeshBuildInput single)
{
HeightBounds = default;
Tiles.Clear();
TilesToBuild.Clear();
List <NavMeshBuildInput> inputs = new List <NavMeshBuildInput>()
{
single
};
BuildResult = new NavMeshBuildResult();
NormalizeInputHeights(inputs);
SetGlobalBounds(inputs);
foreach (NavMeshBuildInput input in inputs)
{
var tiles = NavMeshBuildUtils.GetOverlappingTiles(BuildSettings, input.TileBounds.Bounds);
foreach (var tileCoord in tiles)
{
int result = BuildTile(tileCoord, BuildSettings, AgentSettings, input, 1, out NavMeshTile tile);
if (result == 0)
{
Tiles[tileCoord] = tile;
BuildResult.TilesBuilt++;
}
else if (result != 110)
{
BuildResult.Result = result;
return(false);
}
}
}
BuildResult.Result = 0;
return(true);
}
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);
}
