public IEnumerator BuildLayer(VectorTileLayer layerData, GOLayer layer, bool delayedLoad)
{
GameObject parent = null;
if (transform.FindChild(layer.name) == null)
{
parent = new GameObject();
parent.name = layer.name;
parent.transform.parent = this.transform;
parent.SetActive(!layer.startInactive);
}
else
{
parent = transform.FindChild(layer.name).gameObject;
}
if (layerData.FeatureCount() == 0)
{
yield break;
}
List <GOFeature> stack = new List <GOFeature> ();
for (int i = 0; i < layerData.FeatureCount(); i++)
{
//get the feature
VectorTileFeature feature = layerData.GetFeature(i);
GOFeature goFeature = ParseFeatureData(feature, layer);
if (layer.useOnly.Length > 0 && !layer.useOnly.Contains(goFeature.kind))
{
continue;
}
if (layer.avoid.Length > 0 && layer.avoid.Contains(goFeature.kind))
{
continue;
}
if (layer.layerType == GOLayer.GOLayerType.Roads)
{
GORoadFeature grf = (GORoadFeature)goFeature;
if ((grf.isBridge && !layer.useBridges) || (grf.isTunnel && !layer.useTunnels) || (grf.isLink && !layer.useBridges))
{
continue;
}
}
//multipart
List <List <LatLng> > geomWgs84 = feature.GeometryAsWgs84((ulong)map.zoomLevel, (ulong)tileCoordinates.x, (ulong)tileCoordinates.y, 0);
string type = feature.GetFeatureType(geomWgs84);
if (type == null || feature.GeometryType == GeomType.POINT)
{
continue;
}
if (feature.GeometryType == GeomType.POLYGON && layer.layerType == GOLayer.GOLayerType.Roads)
{
continue;
}
if (type == "MultiLineString" || (type == "Polygon" && !layer.isPolygon))
{
foreach (IList geometry in geomWgs84)
{
GOFeature gf = ParseFeatureData(feature, layer);
gf.geometry = geometry;
gf.type = type;
gf.layer = layer;
gf.parent = parent;
gf.properties = feature.GetProperties();
gf.ConvertGeometries();
gf.ConvertAttributes();
gf.index = (Int64)i;
gf.goFeatureType = GOFeature.GOFeatureType.MultiLine;
stack.Add(gf);
}
}
else if (type == "LineString")
{
GOFeature gf = ParseFeatureData(feature, layer);
gf.geometry = geomWgs84 [0];
gf.type = type;
gf.layer = layer;
gf.parent = parent;
gf.properties = feature.GetProperties();
gf.ConvertGeometries();
gf.ConvertAttributes();
gf.index = (Int64)i;
gf.goFeatureType = GOFeature.GOFeatureType.Line;
if (geomWgs84.Count == 0)
{
continue;
}
stack.Add(gf);
}
else if (type == "Polygon")
{
GOFeature gf = ParseFeatureData(feature, layer);
gf.geometry = geomWgs84 [0];
gf.type = type;
gf.layer = layer;
gf.parent = parent;
gf.properties = feature.GetProperties();
gf.ConvertGeometries();
gf.ConvertAttributes();
gf.index = (Int64)i;
gf.goFeatureType = GOFeature.GOFeatureType.Polygon;
stack.Add(gf);
}
else if (type == "MultiPolygon")
{
GameObject multi = new GameObject("MultiPolygon");
multi.transform.parent = parent.transform;
IList subject = null;
IList clips = new List <List <LatLng> >();
for (int j = 0; j < geomWgs84.Count; j++) //Clip ascending
{
IList p = geomWgs84 [j];
if (GOFeature.IsGeoPolygonClockwise(p))
{
subject = p;
}
else
{
//Add clip
clips.Add(p);
}
//Last one
if (j == geomWgs84.Count - 1 || (j < geomWgs84.Count - 1 && GOFeature.IsGeoPolygonClockwise(geomWgs84 [j + 1]) && subject != null))
{
GOFeature gf = ParseFeatureData(feature, layer);
gf.geometry = subject;
gf.clips = clips;
gf.type = type;
gf.layer = layer;
gf.parent = parent;
gf.properties = feature.GetProperties();
gf.ConvertGeometries();
gf.ConvertAttributes();
gf.index = (Int64)i;
gf.goFeatureType = GOFeature.GOFeatureType.MultiPolygon;
stack.Add(gf);
subject = null;
clips = new List <List <LatLng> >();
}
}
}
}
IList iStack = (IList)stack;
if (layer.layerType == GOLayer.GOLayerType.Roads)
{
iStack = GORoadFeature.MergeRoads(iStack);
}
int n = 25;
for (int i = 0; i < iStack.Count; i += n)
{
for (int k = 0; k < n; k++)
{
if (i + k >= iStack.Count)
{
yield return(null);
break;
}
GOFeature r = (GOFeature)iStack [i + k];
IEnumerator routine = r.BuildFeature(this, delayedLoad);
if (routine != null)
{
if (Application.isPlaying)
{
StartCoroutine(routine);
}
else
{
GORoutine.start(routine, this);
}
}
}
yield return(new WaitForSeconds(0.5f));
}
Resources.UnloadUnusedAssets();
yield return(null);
}