/// <summary>
/// Returns a path that prevents collisions with the navmesh, but floats freely otherwise
/// </summary>
/// <param name="zone"></param>
/// <param name="start">Start in GlobalXYZ</param>
/// <param name="end">End in GlobalXYZ</param>
/// <returns></returns>
public static PathPoint[] GetPathStraight(Zone2 zone, Vector3 start, Vector3 end, dtPolyFlags includeFilter = dtPolyFlags.ALL ^ dtPolyFlags.DISABLED, dtPolyFlags excludeFilter = 0, float polyExtX = 64.0f, float polyExtY = 64.0f, float polyExtZ = 256.0f, dtStraightPathOptions options = dtStraightPathOptions.DT_STRAIGHTPATH_ALL_CROSSINGS)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(null);
}
var ptrs = _loadedZones[zone.ID];
var startFloats = (start + zAxis * 8).ToRecastFloats();
var endFloats = (end + zAxis * 8).ToRecastFloats();
var numNodes = 0;
var buffer = new float[MAX_POLY * 3];
var flags = new dtPolyFlags[MAX_POLY];
var filter = new[] { includeFilter, excludeFilter };
PathStraight(ptrs.queryPtr, startFloats, endFloats, new Vector3(polyExtX, polyExtY, polyExtZ).ToRecastFloats(), filter, options, ref numNodes, buffer, flags);
var points = new PathPoint[numNodes];
var positions = Vector3ArrayFromRecastFloats(buffer, numNodes);
for (var i = 0; i < numNodes; i++)
{
points[i].Position = positions[i];
points[i].Flags = flags[i];
}
return(points);
}
/// <summary>
/// Creates a new heightmap
/// </summary>
/// <param name="zone"></param>
public HeightMap(Zone2 zone)
{
_terrainMap = zone.LoadTerrainMap();
_terrainFactor = zone.TerrainMapScaleFactor;
_offsetMap = zone.LoadOffsetMap();
_offsetFactor = zone.OffsetMapScaleFactor;
_loc2Px = 1.0f * (_size = _terrainMap.GetLength(0)) / zone.Width;
Log.Debug("Loaded heightmap for {0}", zone);
}
/// <summary>
/// Unloads a zone
/// </summary>
/// <param name="z"></param>
public static void Unload(Zone2 z)
{
lock (_loadedZones)
{
if (_loadedZones.ContainsKey(z.ID))
{
RecastMesh m = _loadedZones[z.ID];
if (m != null)
{
FreeNavMesh(m.meshPtr, m.queryPtr);
}
_loadedZones.Remove(z.ID);
}
}
}
public static bool SetPolyFlags(Zone2 zone, uint polyRef, dtPolyFlags flags)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(false);
}
var ptrs = _loadedZones[zone.ID];
var status = SetPolyFlags(ptrs.meshPtr, polyRef, flags);
if ((status & dtStatus.DT_FAILURE) == dtStatus.DT_FAILURE)
{
return(false);
}
return(true);
}
/// <summary>
/// Loads all world related data
/// </summary>
public static void Init()
{
Log.Normal("Loading World ...");
// Regions
foreach (var reg in Region.LoadRegions())
{
_regions.Add(reg.ID, reg);
}
// Zones
foreach (var zone in Zone2.LoadZones(_regions))
{
_zones.Add(zone.ID, zone);
}
// Navmeshs
NavmeshMgr.InitRecast();
}
/// <summary>
/// Loads all zones and associates them with the appropriate regions
/// </summary>
/// <param name="regions"></param>
/// <returns></returns>
public static IEnumerable <Zone2> LoadZones(Dictionary <ushort, Region> regions)
{
IniFile ini;
using (Stream fs = ClientData.ZonesDat)
ini = new IniFile(fs);
// Load Zones
var newZones = from entry in ini.Topics
where entry.Name.StartsWith("zone") && entry.Items["enabled"] != "0"
select new { ID = ushort.Parse(entry.Name.Substring("zone".Length)), Data = entry.Items };
int zones = 0;
foreach (var entry in newZones)
{
ushort regionID = ushort.Parse(entry.Data["region"]);
if (!regions.ContainsKey(regionID))
{
regions.Add(regionID, new Region(regionID, "")); // some zones miss region entries
}
Region region = regions[regionID];
ushort zoneID = entry.ID;
string name = entry.Data["name"];
ushort proxy = 0;
if (entry.Data.ContainsKey("proxy_zone"))
{
proxy = ushort.Parse(entry.Data["proxy_zone"]);
}
int w = int.Parse(entry.Data["width"]) * 8192;
int h = int.Parse(entry.Data["height"]) * 8192;
int xoff = int.Parse(entry.Data["region_offset_x"]) * 8192;
int yoff = int.Parse(entry.Data["region_offset_y"]) * 8192;
var type = (eZoneType)int.Parse(entry.Data.ContainsKey("type") ? entry.Data["type"] : "0");
var zone = new Zone2(region, zoneID, name, xoff, yoff, w, h, type, proxy);
region.Add(zoneID, zone);
yield return(zone);
zones++;
}
Log.Normal("Loaded {0} zones in {1} regions!", zones, regions.Count);
}
public static bool GetPolyAt(Zone2 zone, Vector3 center, Vector3 extents, dtPolyFlags includeFilter, dtPolyFlags excludeFilter, ref uint polyRef, ref Vector3 point)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(false);
}
float[] outPoint = new float[3];
var ptrs = _loadedZones[zone.ID];
var status = GetPolyAt(ptrs.queryPtr, center.ToRecastFloats(), extents.ToRecastFloats(), new dtPolyFlags[] { includeFilter, excludeFilter }, ref polyRef, outPoint);
point = new Vector3(outPoint[0] * INV_FACTOR, outPoint[2] * INV_FACTOR, outPoint[1] * INV_FACTOR);
if ((status & dtStatus.DT_FAILURE) == dtStatus.DT_FAILURE)
{
return(false);
}
return(true);
}
/// <summary>
/// Gets or loads a recast mesh
/// </summary>
private static RecastMesh LoadZoneMesh(Zone2 zone)
{
lock (_loadedZones) {
if (_loadedZones.ContainsKey(zone.ID))
{
return(_loadedZones[zone.ID]);
}
RecastMesh mesh = null;
try {
string file = zone.NavFile;
if (!File.Exists(file))
{
return(null); // no navmesh available
}
file = Path.GetFullPath(file); // not sure if c dll can load relative stuff
IntPtr meshPtr = IntPtr.Zero;
IntPtr queryPtr = IntPtr.Zero;
if (!LoadNavMesh(file, ref meshPtr, ref queryPtr))
{
Log.Error("Loading NavMesh failed for {0}!", zone);
return(null);
}
if (meshPtr == IntPtr.Zero || queryPtr == IntPtr.Zero)
{
Log.Error("Loading NavMesh failed for {0}! (Pointer was zero!)", zone);
return(null);
}
Log.Normal("Loading NavMesh sucessful for region {0}", zone);
return(mesh = new RecastMesh(meshPtr, queryPtr));
}
finally {
_loadedZones.Add(zone.ID, mesh);
}
}
}
public static bool QueryPolygons(Zone2 zone, Vector3 center, Vector3 polyPickExt, dtPolyFlags includeFlags, dtPolyFlags excludeFlags, ref uint[] results, int maxResults = 32)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(false);
}
var resultIdBuffer = new uint[maxResults];
var resultCount = 0;
var ptrs = _loadedZones[zone.ID];
var status = QueryPolygons(ptrs.queryPtr, center.ToRecastFloats(), polyPickExt.ToRecastFloats(), new dtPolyFlags[] { includeFlags, excludeFlags }, resultIdBuffer, ref resultCount, maxResults);
if ((status & dtStatus.DT_FAILURE) == dtStatus.DT_FAILURE)
{
return(false);
}
results = new uint[resultCount];
Array.Copy(resultIdBuffer, results, resultCount);
return(true);
}
/// <summary>
/// Returns the closest point on the navmesh (UNTESTED! EXPERIMENTAL! WILL GO SUPERNOVA ON USE! MAYBE!?)
/// </summary>
public static Vector3?GetClosestPoint(Zone2 zone, Vector3 position, float xRange = 256f, float yRange = 256f, float zRange = 256f)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(position);
}
var ptrs = _loadedZones[zone.ID];
var center = (position + zAxis * 8).ToRecastFloats();
var outVec = new float[3];
var defaultInclude = (dtPolyFlags.ALL ^ dtPolyFlags.DISABLED);
var defaultExclude = (dtPolyFlags)0;
var filter = new dtPolyFlags[] { defaultInclude, defaultExclude };
var polyPickEx = new Vector3(xRange, yRange, zRange).ToRecastFloats();
FindClosestPoint(ptrs.queryPtr, center, polyPickEx, filter, outVec);
var result = new Vector3(outVec[0] * INV_FACTOR, outVec[2] * INV_FACTOR, outVec[1] * INV_FACTOR);
return(result == Vector3.Zero ? null : (Vector3?)result);
}
/// <summary>
/// Returns a random point on the navmesh around the given position
/// </summary>
/// <param name="zone">Zone</param>
/// <param name="position">Start in GlobalXYZ</param>
/// <param name="radius">End in GlobalXYZ</param>
/// <returns></returns>
public static Vector3 GetRandomPoint(Zone2 zone, Vector3 position, float radius)
{
if (!_loadedZones.ContainsKey(zone.ID))
{
return(Vector3.Zero);
}
var ptrs = _loadedZones[zone.ID];
var center = (position + zAxis * 8).ToRecastFloats();
var cradius = (radius * CONVERSION_FACTOR);
var outVec = new float[3];
var defaultInclude = (dtPolyFlags.ALL ^ dtPolyFlags.DISABLED);
var defaultExclude = (dtPolyFlags)0;
var filter = new dtPolyFlags[] { defaultInclude, defaultExclude };
var polyPickEx = new float[3] {
2.0f, 4.0f, 2.0f
};
FindRandomPointAroundCircle(ptrs.queryPtr, center, cradius, polyPickEx, filter, outVec);
return(new Vector3(outVec[0] * INV_FACTOR, outVec[2] * INV_FACTOR, outVec[1] * INV_FACTOR));
}
/// <summary>
/// Builds the navmesh for the specified zone
/// </summary>
public static void BuildNavMesh(Zone2 z)
{
if (z.Name == "ArtOutside" || z.Name == "ArtInside")
{
Log.Normal("Skipping zone {0} because it has name {1}", z, z.Name);
return;
}
if (z.ProxyZone != 0)
{
Log.Normal("Skipping zone {0} because it has a proxy zone id {1}", z, z.ProxyZone);
return;
}
string obj = z.ObjFile;
string nav = z.NavFile.Replace(".gz", "");
for (int i = 0; i <= 1; i++)
{
// Create .obj
if (i == 1)
{
LoadZoneMesh(z);
}
else
{
Unload(z);
}
DateTime start = DateTime.Now;
Log.Normal("Building navmesh for zone {0} (pass={1})...", z, i);
if (File.Exists(obj))
{
File.Delete(obj);
}
using (var exp = new Zone2Obj(z))
exp.Export();
Unload(z);
if (Program.Arguments.ExportObjOnly)
{
return;
}
// .obj -> .nav
//if (i == 0)
{
Log.Normal("Running buildnav.exe for {0}", z.Name);
Process buildnav = Process.Start("buildnav.exe", Util.MakeProcessArguments(new[] { obj.Replace(".obj", ".geomset"), nav }));
buildnav.PriorityClass = ProcessPriorityClass.BelowNormal;
buildnav.WaitForExit();
if (buildnav.ExitCode > 0)
{
throw new InvalidOperationException("buildnav.exe failed with " + buildnav.ExitCode);
}
if (!File.Exists(nav))
{
Log.Error("Did not generate navmesh for file {0} for unknown reasons", nav);
}
else if (new FileInfo(nav).Length < 2048)
{
// empty mesh
Log.Warn("{0} was empty :(", nav);
File.Delete(nav);
}
}
Log.Normal("Zone {0} finished in {1}", z, DateTime.Now - start);
lock (_loadedZones)
{
if (_loadedZones.ContainsKey(z.ID))
{
_loadedZones.Remove(z.ID);
}
}
}
}
/// <summary>
/// True if pathing is enabled for the specified region
/// </summary>
public static bool IsPathingEnabled(Zone2 zone)
{
return(_loadedZones.ContainsKey(zone.ID));
}
