public byte[] Build()
{
Geometry = new Geometry.Geometry {Transform = true };
{
var main = new ADT(World, X, Y);
main.Read();
// main.Generate();
Geometry.AddADT(main);
}
if (Geometry.Vertices.Count == 0 && Geometry.Indices.Count == 0)
throw new InvalidOperationException("Can't build tile with empty geometry");
float[] bbMin, bbMax;
CalculateTileBounds(out bbMin, out bbMax);
Geometry.CalculateMinMaxHeight(out bbMin[1], out bbMax[1]);
// again, we load everything - wasteful but who cares
/* for (int ty = Y - 1; ty <= Y + 1; ty++)
{
for (int tx = X - 1; tx <= X + 1; tx++)
{
try
{
// don't load main tile again
if (tx == X && ty == Y)
continue;
var adt = new ADT(World, tx, ty);
adt.Read();
Geometry.AddADT(adt);
}
catch (FileNotFoundException)
{
// don't care - no file means no geometry
}
}
}*/
Context = new RecastContext();
// Context.SetContextHandler(Log);
// get raw geometry - lots of slowness here
float[] vertices;
int[] triangles;
byte[] areas;
Geometry.GetRawData(out vertices, out triangles, out areas);
Geometry.SaveWavefrontObject($"{World}_{X}_{Y}.obj");
Geometry.Indices.Clear();
Geometry.Vertices.Clear();
// add border
bbMin[0] -= Config.BorderSize * Config.CellSize;
bbMin[2] -= Config.BorderSize * Config.CellSize;
bbMax[0] += Config.BorderSize * Config.CellSize;
bbMax[2] += Config.BorderSize * Config.CellSize;
Heightfield hf;
int width = Config.TileWidth + (Config.BorderSize * 2);
if (!Context.CreateHeightfield(out hf, width, width, bbMin, bbMax, Config.CellSize, Config.CellHeight))
throw new OutOfMemoryException("CreateHeightfield ran out of memory");
Context.MarkWalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles,out areas);
// Context.ClearUnwalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles, areas);
Context.RasterizeTriangles(ref vertices, ref triangles, ref areas, hf, Config.WalkableClimb);
// Once all geometry is rasterized, we do initial pass of filtering to
// remove unwanted overhangs caused by the conservative rasterization
// as well as filter spans where the character cannot possibly stand.
Context.FilterLowHangingWalkableObstacles(Config.WalkableClimb, hf);
Context.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb, hf);
Context.FilterWalkableLowHeightSpans(Config.WalkableHeight, hf);
// Compact the heightfield so that it is faster to handle from now on.
// This will result in more cache coherent data as well as the neighbours
// between walkable cells will be calculated.
CompactHeightfield chf;
if (!Context.BuildCompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, hf, out chf))
throw new OutOfMemoryException("BuildCompactHeightfield ran out of memory");
hf.Delete();
// Erode the walkable area by agent radius.
if (!Context.ErodeWalkableArea(Config.WalkableRadius, chf))
throw new OutOfMemoryException("ErodeWalkableArea ran out of memory");
// Prepare for region partitioning, by calculating distance field along the walkable surface.
if (!Context.BuildDistanceField(chf))
throw new OutOfMemoryException("BuildDistanceField ran out of memory");
// Partition the walkable surface into simple regions without holes.
if (!Context.BuildRegions(chf, Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea))
throw new OutOfMemoryException("BuildRegionsMonotone ran out of memory");
// Create contours.
ContourSet cset;
if (!Context.BuildContours(chf, Config.MaxSimplificationError, Config.MaxEdgeLength, out cset))
throw new OutOfMemoryException("BuildContours ran out of memory");
// Build polygon navmesh from the contours.
PolyMesh pmesh;
if (!Context.BuildPolyMesh(cset, Config.MaxVertsPerPoly, out pmesh))
throw new OutOfMemoryException("BuildPolyMesh ran out of memory");
// Build detail mesh.
PolyMeshDetail dmesh;
if (
!Context.BuildPolyMeshDetail(pmesh, chf, Config.DetailSampleDistance, Config.DetailSampleMaxError,
out dmesh))
throw new OutOfMemoryException("BuildPolyMeshDetail ran out of memory");
chf.Delete();
cset.Delete();
// Remove padding from the polymesh data. (Remove this odditity)
pmesh.RemovePadding(Config.BorderSize);
// Set flags according to area types (e.g. Swim for Water)
pmesh.MarkAll();
// get original bounds
float[] tilebMin, tilebMax;
CalculateTileBounds(out tilebMin, out tilebMax);
tilebMin[1] = bbMin[1];
tilebMax[1] = bbMax[1];
// build off mesh connections for flightmasters
// bMax and bMin are switched here because of the coordinate system transformation
var connections = new List<OffMeshConnection>();
byte[] tileData;
if (!Detour.CreateNavMeshData(out tileData, pmesh, dmesh,
X, Y, tilebMin, tilebMax,
Config.WorldWalkableHeight, Config.WorldWalkableRadius,
Config.WorldWalkableClimb, Config.CellSize,
Config.CellHeight, Config.TileWidth,
connections.ToArray()))
{
pmesh.Delete();
dmesh.Delete();
return null;
}
pmesh.Delete();
dmesh.Delete();
GC.Collect();
return tileData;
}
public byte[] Build(BaseLog log)
{
Log = log;
Geometry = new Geometry {
Transform = true
};
{
var main = GetAdt(World, X, Y);
Geometry.AddAdt(main);
}
if (Geometry.Vertices.Count == 0 && Geometry.Triangles.Count == 0)
{
throw new InvalidOperationException("Can't build tile with empty geometry");
}
float[] bbMin, bbMax;
CalculateTileBounds(out bbMin, out bbMax);
Geometry.CalculateMinMaxHeight(out bbMin[1], out bbMax[1]);
// again, we load everything - wasteful but who cares
for (int ty = Y - 1; ty <= Y + 1; ty++)
{
for (int tx = X - 1; tx <= X + 1; tx++)
{
try
{
// don't load main tile again
if (tx == X && ty == Y)
{
continue;
}
var adt = GetAdt(World, tx, ty);
Geometry.AddAdt(adt);
}
catch (FileNotFoundException)
{
// don't care - no file means no geometry
}
}
}
Context = new RecastContext();
Context.SetContextHandler(Log);
// get raw geometry - lots of slowness here
float[] vertices;
int[] triangles;
byte[] areas;
Geometry.GetRawData(out vertices, out triangles, out areas);
Geometry.Triangles.Clear();
Geometry.Vertices.Clear();
// add border
bbMin[0] -= Config.BorderSize * Config.CellSize;
bbMin[2] -= Config.BorderSize * Config.CellSize;
bbMax[0] += Config.BorderSize * Config.CellSize;
bbMax[2] += Config.BorderSize * Config.CellSize;
Heightfield hf;
int width = Config.TileWidth + (Config.BorderSize * 2);
if (!Context.CreateHeightfield(out hf, width, width, bbMin, bbMax, Config.CellSize, Config.CellHeight))
{
throw new OutOfMemoryException("CreateHeightfield ran out of memory");
}
Context.ClearUnwalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles, areas);
Context.RasterizeTriangles(ref vertices, ref triangles, ref areas, hf, Config.WalkableClimb);
// Once all geometry is rasterized, we do initial pass of filtering to
// remove unwanted overhangs caused by the conservative rasterization
// as well as filter spans where the character cannot possibly stand.
Context.FilterLowHangingWalkableObstacles(Config.WalkableClimb, hf);
Context.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb, hf);
Context.FilterWalkableLowHeightSpans(Config.WalkableHeight, hf);
// Compact the heightfield so that it is faster to handle from now on.
// This will result in more cache coherent data as well as the neighbours
// between walkable cells will be calculated.
CompactHeightfield chf;
if (!Context.BuildCompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, hf, out chf))
{
throw new OutOfMemoryException("BuildCompactHeightfield ran out of memory");
}
hf.Delete();
// Erode the walkable area by agent radius.
if (!Context.ErodeWalkableArea(Config.WalkableRadius, chf))
{
throw new OutOfMemoryException("ErodeWalkableArea ran out of memory");
}
// Prepare for region partitioning, by calculating distance field along the walkable surface.
if (!Context.BuildDistanceField(chf))
{
throw new OutOfMemoryException("BuildDistanceField ran out of memory");
}
// Partition the walkable surface into simple regions without holes.
if (!Context.BuildRegions(chf, Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea))
{
throw new OutOfMemoryException("BuildRegionsMonotone ran out of memory");
}
// Create contours.
ContourSet cset;
if (!Context.BuildContours(chf, Config.MaxSimplificationError, Config.MaxEdgeLength, out cset))
{
throw new OutOfMemoryException("BuildContours ran out of memory");
}
// Build polygon navmesh from the contours.
PolyMesh pmesh;
if (!Context.BuildPolyMesh(cset, Config.MaxVertsPerPoly, out pmesh))
{
throw new OutOfMemoryException("BuildPolyMesh ran out of memory");
}
// Build detail mesh.
PolyMeshDetail dmesh;
if (
!Context.BuildPolyMeshDetail(pmesh, chf, Config.DetailSampleDistance, Config.DetailSampleMaxError,
out dmesh))
{
throw new OutOfMemoryException("BuildPolyMeshDetail ran out of memory");
}
chf.Delete();
cset.Delete();
// Remove padding from the polymesh data. (Remove this odditity)
pmesh.RemovePadding(Config.BorderSize);
// Set flags according to area types (e.g. Swim for Water)
pmesh.MarkAll();
// get original bounds
float[] tilebMin, tilebMax;
CalculateTileBounds(out tilebMin, out tilebMax);
tilebMin[1] = bbMin[1];
tilebMax[1] = bbMax[1];
// build off mesh connections for flightmasters
// bMax and bMin are switched here because of the coordinate system transformation
/// This is not needed for our particular use.
var connections = new List <OffMeshConnection>();
/*var taxis = TaxiHelper.GetNodesInBBox(MapId, tilebMax.ToWoW(), tilebMin.ToWoW());
* foreach (var taxi in taxis)
* {
* Log.Log(LogCategory.Warning,
* "Flightmaster \"" + taxi.Name + "\", Id: " + taxi.Id + " Horde: " + taxi.IsHorde + " Alliance: " +
* taxi.IsAlliance);
*
* var data = TaxiHelper.GetTaxiData(taxi);
* var from = taxi.Location.ToRecast().ToFloatArray();
* connections.AddRange(data.To.Select(to => new OffMeshConnection
* {
* AreaId = PolyArea.Road,
* Flags = PolyFlag.FlightMaster,
* From = from,
* To = to.Value.Location.ToRecast().ToFloatArray(),
* Radius = Config.WorldWalkableRadius,
* Type = ConnectionType.OneWay,
* UserID = (uint) to.Key
* }));
*
* foreach (var target in data.To)
* Log.Log(LogCategory.Warning,
* "\tPath to: \"" + target.Value.Name + "\" Id: " + target.Value.Id + " Path Id: " +
* target.Key);
* }*/
byte[] tileData;
if (!Detour.CreateNavMeshData(out tileData, pmesh, dmesh,
X, Y, tilebMin, tilebMax,
Config.WorldWalkableHeight, Config.WorldWalkableRadius,
Config.WorldWalkableClimb, Config.CellSize,
Config.CellHeight, Config.TileWidth,
connections.ToArray()))
{
pmesh.Delete();
dmesh.Delete();
return(null);
}
pmesh.Delete();
dmesh.Delete();
Cache.Clear();
GC.Collect();
return(tileData);
}
public byte[] Build(BaseLog log)
{
Log = log;
Geometry = new Geometry {Transform = true};
{
var main = new ADT(GetAdtPath(World, X, Y));
main.Read();
Geometry.AddAdt(main);
}
if (Geometry.Vertices.Count == 0 && Geometry.Triangles.Count == 0)
throw new InvalidOperationException("Can't build tile with empty geometry");
float[] bbMin, bbMax;
CalculateTileBounds(out bbMin, out bbMax);
Geometry.CalculateMinMaxHeight(out bbMin[1], out bbMax[1]);
// again, we load everything - wasteful but who cares
for (int ty = Y - 1; ty <= Y + 1; ty++)
{
for (int tx = X - 1; tx <= X + 1; tx++)
{
try
{
// don't load main tile again
if (tx == X && ty == Y)
continue;
var adt = new ADT(GetAdtPath(World, tx, ty));
adt.Read();
Geometry.AddAdt(adt);
}
catch (FileNotFoundException)
{
// don't care - no file means no geometry
}
}
}
Context = new RecastContext();
Context.SetContextHandler(Log);
// get raw geometry - lots of slowness here
float[] vertices;
int[] triangles;
byte[] areas;
Geometry.GetRawData(out vertices, out triangles, out areas);
Geometry.Triangles.Clear();
Geometry.Vertices.Clear();
// add border
bbMin[0] -= Config.BorderSize*Config.CellSize;
bbMin[2] -= Config.BorderSize*Config.CellSize;
bbMax[0] += Config.BorderSize*Config.CellSize;
bbMax[2] += Config.BorderSize*Config.CellSize;
Heightfield hf;
int width = Config.TileWidth + (Config.BorderSize*2);
if (!Context.CreateHeightfield(out hf, width, width, bbMin, bbMax, Config.CellSize, Config.CellHeight))
throw new OutOfMemoryException("CreateHeightfield ran out of memory");
Context.ClearUnwalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles, areas);
Context.RasterizeTriangles(ref vertices, ref triangles, ref areas, hf, Config.WalkableClimb);
// Once all geometry is rasterized, we do initial pass of filtering to
// remove unwanted overhangs caused by the conservative rasterization
// as well as filter spans where the character cannot possibly stand.
Context.FilterLowHangingWalkableObstacles(Config.WalkableClimb, hf);
Context.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb, hf);
Context.FilterWalkableLowHeightSpans(Config.WalkableHeight, hf);
// Compact the heightfield so that it is faster to handle from now on.
// This will result in more cache coherent data as well as the neighbours
// between walkable cells will be calculated.
CompactHeightfield chf;
if (!Context.BuildCompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, hf, out chf))
throw new OutOfMemoryException("BuildCompactHeightfield ran out of memory");
hf.Delete();
// Erode the walkable area by agent radius.
if (!Context.ErodeWalkableArea(Config.WalkableRadius, chf))
throw new OutOfMemoryException("ErodeWalkableArea ran out of memory");
// Prepare for region partitioning, by calculating distance field along the walkable surface.
if (!Context.BuildDistanceField(chf))
throw new OutOfMemoryException("BuildDistanceField ran out of memory");
// Partition the walkable surface into simple regions without holes.
if (!Context.BuildRegions(chf, Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea))
throw new OutOfMemoryException("BuildRegionsMonotone ran out of memory");
// Create contours.
ContourSet cset;
if (!Context.BuildContours(chf, Config.MaxSimplificationError, Config.MaxEdgeLength, out cset))
throw new OutOfMemoryException("BuildContours ran out of memory");
// Build polygon navmesh from the contours.
PolyMesh pmesh;
if (!Context.BuildPolyMesh(cset, Config.MaxVertsPerPoly, out pmesh))
throw new OutOfMemoryException("BuildPolyMesh ran out of memory");
// Build detail mesh.
PolyMeshDetail dmesh;
if (
!Context.BuildPolyMeshDetail(pmesh, chf, Config.DetailSampleDistance, Config.DetailSampleMaxError,
out dmesh))
throw new OutOfMemoryException("BuildPolyMeshDetail ran out of memory");
chf.Delete();
cset.Delete();
// Remove padding from the polymesh data. (Remove this odditity)
pmesh.RemovePadding(Config.BorderSize);
// Set flags according to area types (e.g. Swim for Water)
pmesh.MarkAll();
// get original bounds
float[] tilebMin, tilebMax;
CalculateTileBounds(out tilebMin, out tilebMax);
tilebMin[1] = bbMin[1];
tilebMax[1] = bbMax[1];
// build off mesh connections for flightmasters
// bMax and bMin are switched here because of the coordinate system transformation
var taxis = TaxiHelper.GetNodesInBBox(MapId, tilebMax.ToWoW(), tilebMin.ToWoW());
var connections = new List<OffMeshConnection>();
foreach (var taxi in taxis)
{
Log.Log(LogCategory.Warning,
"Flightmaster \"" + taxi.Name + "\", Id: " + taxi.Id + " Horde: " + taxi.IsHorde + " Alliance: " +
taxi.IsAlliance);
var data = TaxiHelper.GetTaxiData(taxi);
var from = taxi.Location.ToRecast().ToFloatArray();
connections.AddRange(data.To.Select(to => new OffMeshConnection
{
AreaId = PolyArea.Road,
Flags = PolyFlag.FlightMaster,
From = from,
To = to.Value.Location.ToRecast().ToFloatArray(),
Radius = Config.WorldWalkableRadius,
Type = ConnectionType.OneWay,
UserID = (uint) to.Key
}));
foreach (var target in data.To)
Log.Log(LogCategory.Warning,
"\tPath to: \"" + target.Value.Name + "\" Id: " + target.Value.Id + " Path Id: " +
target.Key);
}
byte[] tileData;
if (!Detour.CreateNavMeshData(out tileData, pmesh, dmesh,
X, Y, tilebMin, tilebMax,
Config.WorldWalkableHeight, Config.WorldWalkableRadius,
Config.WorldWalkableClimb, Config.CellSize,
Config.CellHeight, Config.TileWidth,
connections.ToArray()))
{
pmesh.Delete();
dmesh.Delete();
return null;
}
pmesh.Delete();
dmesh.Delete();
Cache.Clear();
GC.Collect();
return tileData;
}
public byte[] Build(BaseLog log)
{
var wdt = new WDT("World\\maps\\" + Dungeon + "\\" + Dungeon + ".wdt");
if (!wdt.IsGlobalModel || !wdt.IsValid)
return null;
InitializeProgress(12);
Geometry = new Geometry {Transform = true};
var model = new WorldModelRoot(wdt.ModelFile);
Geometry.AddDungeon(model, wdt.ModelDefinition);
CompleteWorkUnit();
if (Geometry.Vertices.Count == 0 && Geometry.Triangles.Count == 0)
throw new InvalidOperationException("Can't build mesh with empty geometry");
Log = log;
Context = new RecastContext();
Context.SetContextHandler(Log);
// get raw geometry - lots of slowness here
float[] vertices;
int[] triangles;
byte[] areas;
Geometry.GetRawData(out vertices, out triangles, out areas);
Geometry.Triangles.Clear();
float[] bmin, bmax;
Geometry.CalculateBoundingBox(out bmin, out bmax);
Geometry.Vertices.Clear();
// Allocate voxel heightfield where we rasterize our input data to.
Heightfield hf;
int width, height;
Recast.CalcGridSize(bmin, bmax, Config.CellSize, out width, out height);
if (!Context.CreateHeightfield(out hf, width, height, bmin, bmax, Config.CellSize, Config.CellHeight))
throw new OutOfMemoryException("CreateHeightfield ran out of memory");
CompleteWorkUnit();
// Find triangles which are walkable based on their slope and rasterize them.
Context.ClearUnwalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles, areas);
Context.RasterizeTriangles(ref vertices, ref triangles, ref areas, hf, Config.WalkableClimb);
CompleteWorkUnit();
// Once all geometry is rasterized, we do initial pass of filtering to
// remove unwanted overhangs caused by the conservative rasterization
// as well as filter spans where the character cannot possibly stand.
Context.FilterLowHangingWalkableObstacles(Config.WalkableClimb, hf);
Context.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb, hf);
Context.FilterWalkableLowHeightSpans(Config.WalkableHeight, hf);
CompleteWorkUnit();
// Compact the heightfield so that it is faster to handle from now on.
// This will result in more cache coherent data as well as the neighbours
// between walkable cells will be calculated.
CompactHeightfield chf;
if (!Context.BuildCompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, hf, out chf))
throw new OutOfMemoryException("BuildCompactHeightfield ran out of memory");
CompleteWorkUnit();
hf.Delete();
// Erode the walkable area by agent radius.
if (!Context.ErodeWalkableArea(Config.WalkableRadius, chf))
throw new OutOfMemoryException("ErodeWalkableArea ran out of memory");
CompleteWorkUnit();
// Prepare for region partitioning, by calculating distance field along the walkable surface.
if (!Context.BuildDistanceField(chf))
throw new OutOfMemoryException("BuildDistanceField ran out of memory");
CompleteWorkUnit();
// Partition the walkable surface into simple regions without holes.
if (!Context.BuildRegions(chf, Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea))
throw new OutOfMemoryException("BuildRegions ran out of memory");
CompleteWorkUnit();
// Create contours.
ContourSet cset;
if (!Context.BuildContours(chf, Config.MaxSimplificationError, Config.MaxEdgeLength, out cset))
throw new OutOfMemoryException("BuildContours ran out of memory");
CompleteWorkUnit();
// Build polygon navmesh from the contours.
PolyMesh pmesh;
if (!Context.BuildPolyMesh(cset, Config.MaxVertsPerPoly, out pmesh))
throw new OutOfMemoryException("BuildPolyMesh ran out of memory");
CompleteWorkUnit();
// Build detail mesh.
PolyMeshDetail dmesh;
if (!Context.BuildPolyMeshDetail(pmesh, chf, Config.DetailSampleDistance, Config.DetailSampleMaxError, out dmesh))
throw new OutOfMemoryException("BuildPolyMeshDetail ran out of memory");
CompleteWorkUnit();
chf.Delete();
cset.Delete();
// Set flags according to area types (e.g. Swim for Water)
pmesh.MarkAll();
byte[] meshData;
if (!Detour.CreateNavMeshData(out meshData, pmesh, dmesh, 0, 0, bmin, bmax, Config.WorldWalkableHeight, Config.WorldWalkableRadius, Config.WorldWalkableClimb, Config.CellSize, Config.CellHeight, Config.TileWidth, null))
{
pmesh.Delete();
dmesh.Delete();
return null;
}
CompleteWorkUnit();
pmesh.Delete();
dmesh.Delete();
return meshData;
}
public byte[] Build(BaseLog log)
{
var wdt = new WDT("World\\maps\\" + Dungeon + "\\" + Dungeon + ".wdt");
if (!wdt.IsGlobalModel || !wdt.IsValid)
{
return(null);
}
InitializeProgress(12);
Geometry = new Geometry {
Transform = true
};
var model = new WorldModelRoot(wdt.ModelFile);
Geometry.AddDungeon(model, wdt.ModelDefinition);
CompleteWorkUnit();
if (Geometry.Vertices.Count == 0 && Geometry.Triangles.Count == 0)
{
throw new InvalidOperationException("Can't build mesh with empty geometry");
}
Log = log;
Context = new RecastContext();
Context.SetContextHandler(Log);
// get raw geometry - lots of slowness here
float[] vertices;
int[] triangles;
byte[] areas;
Geometry.GetRawData(out vertices, out triangles, out areas);
Geometry.Triangles.Clear();
float[] bmin, bmax;
Geometry.CalculateBoundingBox(out bmin, out bmax);
Geometry.Vertices.Clear();
// Allocate voxel heightfield where we rasterize our input data to.
Heightfield hf;
int width, height;
Recast.CalcGridSize(bmin, bmax, Config.CellSize, out width, out height);
if (!Context.CreateHeightfield(out hf, width, height, bmin, bmax, Config.CellSize, Config.CellHeight))
{
throw new OutOfMemoryException("CreateHeightfield ran out of memory");
}
CompleteWorkUnit();
// Find triangles which are walkable based on their slope and rasterize them.
Context.ClearUnwalkableTriangles(Config.WalkableSlopeAngle, ref vertices, ref triangles, areas);
Context.RasterizeTriangles(ref vertices, ref triangles, ref areas, hf, Config.WalkableClimb);
CompleteWorkUnit();
// Once all geometry is rasterized, we do initial pass of filtering to
// remove unwanted overhangs caused by the conservative rasterization
// as well as filter spans where the character cannot possibly stand.
Context.FilterLowHangingWalkableObstacles(Config.WalkableClimb, hf);
Context.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb, hf);
Context.FilterWalkableLowHeightSpans(Config.WalkableHeight, hf);
CompleteWorkUnit();
// Compact the heightfield so that it is faster to handle from now on.
// This will result in more cache coherent data as well as the neighbours
// between walkable cells will be calculated.
CompactHeightfield chf;
if (!Context.BuildCompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, hf, out chf))
{
throw new OutOfMemoryException("BuildCompactHeightfield ran out of memory");
}
CompleteWorkUnit();
hf.Delete();
// Erode the walkable area by agent radius.
if (!Context.ErodeWalkableArea(Config.WalkableRadius, chf))
{
throw new OutOfMemoryException("ErodeWalkableArea ran out of memory");
}
CompleteWorkUnit();
// Prepare for region partitioning, by calculating distance field along the walkable surface.
if (!Context.BuildDistanceField(chf))
{
throw new OutOfMemoryException("BuildDistanceField ran out of memory");
}
CompleteWorkUnit();
// Partition the walkable surface into simple regions without holes.
if (!Context.BuildRegions(chf, Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea))
{
throw new OutOfMemoryException("BuildRegions ran out of memory");
}
CompleteWorkUnit();
// Create contours.
ContourSet cset;
if (!Context.BuildContours(chf, Config.MaxSimplificationError, Config.MaxEdgeLength, out cset))
{
throw new OutOfMemoryException("BuildContours ran out of memory");
}
CompleteWorkUnit();
// Build polygon navmesh from the contours.
PolyMesh pmesh;
if (!Context.BuildPolyMesh(cset, Config.MaxVertsPerPoly, out pmesh))
{
throw new OutOfMemoryException("BuildPolyMesh ran out of memory");
}
CompleteWorkUnit();
// Build detail mesh.
PolyMeshDetail dmesh;
if (!Context.BuildPolyMeshDetail(pmesh, chf, Config.DetailSampleDistance, Config.DetailSampleMaxError, out dmesh))
{
throw new OutOfMemoryException("BuildPolyMeshDetail ran out of memory");
}
CompleteWorkUnit();
chf.Delete();
cset.Delete();
// Set flags according to area types (e.g. Swim for Water)
pmesh.MarkAll();
byte[] meshData;
if (!Detour.CreateNavMeshData(out meshData, pmesh, dmesh, 0, 0, bmin, bmax, Config.WorldWalkableHeight, Config.WorldWalkableRadius, Config.WorldWalkableClimb, Config.CellSize, Config.CellHeight, Config.TileWidth, null))
{
pmesh.Delete();
dmesh.Delete();
return(null);
}
CompleteWorkUnit();
pmesh.Delete();
dmesh.Delete();
return(meshData);
}