public WeightedLocation(Location loc, double weight, Floorplan floorplan)
{
Location = loc;
Weight = weight;
Floorplan = floorplan;
}
/// <summary>
/// Fullfills pathfinding requests by returning a Route object.
/// </summary>
/// <param name="startX"></param>
/// <param name="endX"></param>
/// <param name="startY"></param>
/// <param name="endY"></param>
/// <param name="startFloor"></param>
/// <param name="endFloor"></param>
/// <returns></returns>
public RouteDto getPath(int startX, int startY, int endX, int endY, Floorplan startFloorPlan, Floorplan endFloorPlan)
{
int startFloor = startFloorPlan.Floor;
int endFloor = endFloorPlan.Floor;
// The route object will contain the final route, if one exists
RouteDto route = new RouteDto();
if (_bluePrint == null)
{
return route.pathfindingError();
}
// Get map of start floor through api.
// If something goes wrong, return a fail-code route
bool[,] startFloorMap = getFloorMap(startFloor, _bluePrint);
if (startFloorMap == null)
{
return route.pathfindingError();
}
// API call for endFloor map
// (needed in places of different scope below)
bool[,] endFloorMap = null;
if (startFloor != endFloor)
{
endFloorMap = getFloorMap(endFloor, _bluePrint);
if (endFloorMap == null)
{
return route.pathfindingError();
}
}
// BEGIN PATHFINDING /////////////////
if (startFloor == endFloor)
{
AStarSearch searchPath = new AStarSearch(startFloorMap).run(startX, startY, endX, endY);
if (searchPath.hasSolution())
{
// Create the event for the path and add it to our route
lastFloorGridWidth = searchPath.gridLengthX;
lastFloorGridHeight = searchPath.gridLengthY;
return route.addPath(startFloor, searchPath.Solution.ToList());
}
// falls out to third-tier search
}
else
{
if (endFloorMap == null)
{
return route.pathfindingError();
}
// API call searching for all "vertical paths" (VPs) from startFloor directly to endFloor
// var directPois = _bluePrint.NavigationalPois
// .Where(v => v.Locations.Any(l => l.FloorPlan.Floor == startFloor) && v.Locations.Any(asd => asd.FloorPlan.Floor == endFloor))
// .ToList();
var directPois = _bluePrint.GetDirectNavPois(startFloor, endFloor);
if (directPois != null && directPois.Count > 0)
{
// Create the search objs here to be reused. Prevents duplicatoin of weighted-grid work.
AStarSearch search1 = new AStarSearch(startFloorMap);
AStarSearch search2 = new AStarSearch(endFloorMap);
// Here we are looking for a valid path using only one stairs, elevator, etc.
foreach (var v in directPois)
{
// start floor
var fp1 = v.Location;
// FloorPlanLocation fp1 = v.Locations.Where(x => x.FloorPlan.Floor == startFloor).FirstOrDefault();
int vertX1 = (int) (fp1.X*startFloorPlan.ImageDataWidth);
int vertY1 = (int) (fp1.Y*startFloorPlan.ImageDataHeight);
// find path from user position to the "stairs"
search1.run(startX, startY, vertX1, vertY1);
// if we can't get to the "stairs" from here, lets try the next way up
if (!search1.hasSolution())
{
continue;
}
// end floor
var fp2 = v.Location;
// FloorPlanLocation fp2 = v.Locations.Where(x => x.FloorPlan.Floor == endFloor).FirstOrDefault();
int vertX2 = (int) (fp2.X*endFloorPlan.ImageDataWidth);
int vertY2 = (int) (fp2.Y*endFloorPlan.ImageDataHeight);
// find path from "stairs" to the ending position
search2.run(vertX2, vertY2, endX, endY);
// if we can't get to the "stairs" from here, we do not want to get to the return statement
if (!search2.hasSolution())
{
continue;
}
lastFloorGridWidth = search2.gridLengthX;
lastFloorGridHeight = search2.gridLengthY;
// Create solution
return route
.addPath(startFloor, search1.Solution.ToList())
.addVerticalTransisiton(v.Type, new CoordinateDto(vertX1, vertY1, search1.gridLengthX, search1.gridLengthY),
startFloor, endFloor)
.addPath(endFloor, search2.Solution.ToList());
}
// falls out to third-tier search
}
}
// the infamous third-tier search
return route;
}
