public static List <PolygroupModifier> AdvancedCreatePolygroups(DTConvexPolygroup originalPolygroup, List <int> keptIndices, List <List <Vector2> > newPolygons)
{
DTProfilerMarkers.Polygrouper.Begin();
// Construct a list of point sets to identify unique groups of connected output polygons
List <HashSet <Vector2> > outputPointGroups = new List <HashSet <Vector2> >();
foreach (int i in keptIndices)
{
originalPolygroup[i].MergeIntoPointGroups(outputPointGroups);
}
foreach (var poly in newPolygons)
{
poly.MergeIntoPointGroups(outputPointGroups);
}
// Use the point sets to create polygroups
List <PolygroupModifier> outputPolygroups = new List <PolygroupModifier>(outputPointGroups.Count);
// Initialize the polygroups
for (int i = 0; i < outputPointGroups.Count; ++i)
{
outputPolygroups.Add(new PolygroupModifier(originalPolygroup));
}
// Add each existing polygon to the first polygroup it matches
foreach (int i in keptIndices)
{
// Find the correct place to put this polygon in the output structure
int outputGroupIndex = originalPolygroup[i].GetFirstPointGroupIndex(outputPointGroups);
if (outputGroupIndex >= 0)
{
outputPolygroups[outputGroupIndex].keptIndices.Add(i);
}
else
{
throw new Exception("Polygon failed to match a point group");
}
}
// Add each new polygon to the first polygroup it matches
foreach (var poly in newPolygons)
{
// Find the correct place to put this polygon in the output structure
int outputGroupIndex = poly.GetFirstPointGroupIndex(outputPointGroups);
if (outputGroupIndex >= 0)
{
outputPolygroups[outputGroupIndex].newPolygons.Add(poly);
}
else
{
throw new Exception("Polygon failed to match a point group");
}
}
DTProfilerMarkers.Polygrouper.End();
return(outputPolygroups);
}
public PolygroupModifier(DTConvexPolygroup originalPolygroup, List <int> keptIndices, List <List <Vector2> > newPolygons)
{
this.originalPolygroup = originalPolygroup;
this.keptIndices = keptIndices;
this.newPolygons = newPolygons;
}
public PolygroupModifier(DTConvexPolygroup originalPolygroup)
{
this.originalPolygroup = originalPolygroup;
keptIndices = new List <int>();
newPolygons = new List <List <Vector2> >();
}
