private void Clip(NavigationPolygon floor, NavigationPolygons staticObjects)
{
Clipper clipper = new Clipper();
if (!clipper.AddPath(floor, PolyType.ptSubject, true))
{
throw new Exception("Can't add Paths (Subject).");
}
if (staticObjects.Count > 0 && !clipper.AddPaths(staticObjects, PolyType.ptClip, true))
{
throw new Exception("Can't add Paths (Clip).");
}
// we do it twice (it's easier than deep copy the polygons), since this is loading screen time... We don't mind performance too much here
if (!clipper.Execute(ClipType.ctDifference, floorWithStaticObjects, PolyFillType.pftNonZero))
{
throw new Exception("Can't clip floorWithStaticObjects.");
}
if (!clipper.Execute(ClipType.ctDifference, FloorWithDynamicObjects, PolyFillType.pftNonZero))
{
throw new Exception("Can't clip floorWithStaticObjects.");
}
clipper.Reset();
}
public Map(NavigationPolygon floor, NavigationPolygons staticObjects)
{
this.floor = floor;
this.staticObjects = staticObjects;
Initialize();
}
private void Union(NavigationPolygons floor, List <NavigationEdge> dynamicObject)
{
if (dynamicObject.Count == 0)
{
return;
}
Clipper clipper = new Clipper();
if (!clipper.AddPaths(floor, PolyType.ptSubject, true))
{
throw new Exception("Can't add Paths (Subject).");
}
if (!clipper.AddPaths(new NavigationPolygons(dynamicObject.ConvertAll(x => x.BoundingBox())), PolyType.ptClip, true))
{
throw new Exception("Can't add Paths (Clip).");
}
NavigationPolygons result = new NavigationPolygons();
if (!clipper.Execute(ClipType.ctUnion, result, PolyFillType.pftNonZero))
{
throw new Exception("Can't clip dynamicObjects.");
}
FloorWithDynamicObjects = result;
}
public NavigationPolygons DeepCopy()
{
NavigationPolygons copy = new NavigationPolygons(this.Count);
for (var i = 0; i < this.Count; i++)
{
copy.Add(this[i].DeepCopy());
}
return(copy);
}