public static Graph2d CreateRoutingCostMap(List <Room> _exclude, IVector2 _size, int _roomBuffer,
int _tunnelMagBuffer, double _tunnelRoutingStrength)
{
var defCost = _tunnelRoutingStrength * 2d + 1;
var routingGraph = new Graph2d(_size, defCost, false);
foreach (var room in m_Tilemap.m_Rooms)
{
if (_exclude.Contains(room))
{
//Add special case routing per room shape
switch (room.Shape)
{
//Rect rooms add corners as impassable
case Room.ShapeType.Rectangle:
foreach (var corner in room.Corners)
{
routingGraph.SetNodeWeight(corner, double.MaxValue);
}
break;
default:
break;
}
continue;
}
//Add room walls as impassable with specified buffer
List <IVector2> bufferPoly;
//Pre-calculate costs for room buffer
var cost = new double[_roomBuffer + 1];
for (var buffer = _roomBuffer; buffer > 0; --buffer)
{
cost[buffer] = defCost + defCost * (_roomBuffer - buffer);
}
cost[0] = double.MaxValue;
//Add room buffer costs
for (var buffer = _roomBuffer; buffer >= 0; --buffer)
{
if (buffer != 0)
{
var co = new ClipperOffset();
var wallCoords = room.GetWallCoords(true);
co.AddPath(Support2D.ToIntPoint(wallCoords), JoinType.jtMiter,
EndType.etClosedPolygon);
var pt = new PolyTree();
co.Execute(ref pt, buffer);
bufferPoly = Support2D.ToIVector2(pt.Childs[0].Contour);
var path = Support2D.CreatePath(bufferPoly, true);
foreach (var coord in path)
{
routingGraph.SetNodeWeight(coord, cost[buffer] + routingGraph.GetNodeWeight(coord));
}
}
else
{
foreach (var coord in room.GetWallCoords(true))
{
routingGraph.SetNodeWeight(coord, cost[0]);
}
}
}
}
if (_tunnelMagBuffer >= 0 && Settings.CalcRoutingStrength != 0)
{
//Pre-calcluate costs for tunnel magnetism
var tunnelCost = new double[_tunnelMagBuffer + 1];
tunnelCost[0] = 1d;
for (var tScaleIdx = 1; tScaleIdx <= _tunnelMagBuffer; ++tScaleIdx)
{
tunnelCost[tScaleIdx] = tunnelCost[0] + _tunnelRoutingStrength +
(tScaleIdx - 1) * (defCost - 1 - _tunnelRoutingStrength) / _tunnelMagBuffer;
}
foreach (var tunnel in m_Tilemap.m_Tunnels)
{
for (var tOffset = _tunnelMagBuffer; tOffset >= 0; --tOffset)
{
//double cost = _defaultCost - _defaultCost/(tOffset + 1);
foreach (var path in tunnel.Paths)
{
if (tOffset > 0)
{
var solution = new PolyTree();
var co = new ClipperOffset();
co.AddPath(Support2D.ToIntPoint(path.Points), JoinType.jtMiter,
EndType.etOpenButt);
//co.AddPath(Support2D.ToIntPoint(path.PointsReverse), JoinType.jtSquare,
// EndType.etOpenButt);
co.Execute(ref solution, tOffset);
foreach (var child in solution.Childs)
{
var tunnelPath = Support2D.CreatePath(Support2D.ToIVector2(child.Contour), true);
foreach (var coord in tunnelPath)
{
if (!routingGraph.IsImpassable(coord))
{
var curCost = routingGraph.GetNodeWeight(coord);
if (curCost <= defCost && curCost > tunnelCost[tOffset])
{
routingGraph.SetNodeWeight(coord, tunnelCost[tOffset]);
}
}
}
}
}
else
{
foreach (var coord in path.Points)
{
if (!routingGraph.IsImpassable(coord))
{
routingGraph.SetNodeWeight(coord, tunnelCost[0]);
}
}
//routingGraph.ScaleNodeWeight(coord, 0.1f * (float)_defaultCost);
}
}
}
}
}
return(routingGraph);
}
//public static IEnumerator AStar(Graph2d _graph, IVector2 _start, IVector2 _end, double _turnCostAdder, double _defVaul, Func<IVector2, IVector2, double, double> _heuristic)
public static void AStar(Graph2d _graph, IVector2 _start, IVector2 _end, double _turnCostAdder, double _defVaul, Func <IVector2, IVector2, double, double> _heuristic)
{
var openList = new ioMinPriQ <AStarOpenNode>();
openList.Enqueue(new AStarOpenNode(_start, null, 0, _heuristic(_start, _end, _defVaul)));
var closedList = new Dictionary <IVector2, AStarClosedNode>();
/* //UNITY
* bool debugMe = true;
* var texture = (Texture2D)TileMap2D.meshRenderer.material.mainTexture;
* int frameUpdateRate = 30;
* if (debugMe)
* {
*
* texture.SetPixel(_start.x, _start.y, new Color(0.6f, 1f, 0.6f, 1));
* texture.SetPixel(_end.x, _end.y, new Color(0.6f, 1f, 0.6f, 1));
* texture.Apply();
* }
* */
AStarOpenNode curNode = null;
var prevDir = -1;
while (!openList.IsEmpty)
{
//Find smallest element in open list (est total cost)
curNode = openList.Dequeue();
//Get direction of step from current node
if (curNode.Parent != null)
{
prevDir = (int)curNode.StepDirection;
}
//Exit if goal found
if (curNode.Coord.Equals(_end))
{
closedList[_end] = new AStarClosedNode(curNode);
break;
}
for (int i = 1; i < 8; i = i + 2)
//foreach (var neighbor in curNode.Coord.Neighbors())
{
IVector2 neighbor = curNode.Coord + DirMap.Get(i);
if (!_graph.InBounds(neighbor) || (_graph.IsImpassable(neighbor)))
{
continue;
}
//Set end node and add cost
//var endNode = neighbor;
//var endNodeCost = curNode.CostSoFar + _graph.GetEdgeWeight(curNode.Coord, (G2Dir) i);//_graph[neighbor].GetEdge((G2Dir)i);
var endNodeCost = curNode.CostSoFar + _graph.GetNodeWeight(neighbor);
if (i != prevDir && prevDir != -1)
{
endNodeCost += _turnCostAdder;
}
//Skip if not walkable
if (endNodeCost == Graph2d.IMPASSABLE)
{
continue;
}
//Skip if better path already exists
var skipNode = false;
for (int j = 0; j < openList.DataList.Count; ++j)
{
if (openList.DataList[j].Coord.Equals(neighbor))
{
if (openList.DataList[j].CostSoFar <= endNodeCost)
{
skipNode = true;
break;
}
openList.Remove(openList.DataList[j]);
}
}
if (skipNode)
{
continue;
}
//Skip or update if current path is worse/better
if (closedList.ContainsKey(neighbor))
{
if (closedList[neighbor].CostSoFar <= endNodeCost)
{
continue;
}
closedList[neighbor] = new AStarClosedNode(curNode.Coord, endNodeCost);
/* //UNITY
* if (debugMe)
* texture.SetPixel(neighbor.x, neighbor.y, new Color(0.0f, 1f, 1f, 1f));
*/
}
var endNode = new AStarOpenNode(neighbor, curNode.Coord, endNodeCost, endNodeCost + _heuristic(neighbor, _end, _defVaul));
openList.Enqueue(endNode);
}
closedList[curNode.Coord] = new AStarClosedNode(curNode);
/* //UNITY
* if (debugMe)
* {
*
* var pixel = texture.GetPixel(curNode.Coord.x, curNode.Coord.y);
* pixel = new Color(pixel.r + 0.3f, pixel.g, pixel.b, pixel.a);
* texture.SetPixel(curNode.Coord.x, curNode.Coord.y, pixel);
* texture.Apply();
* if (++debugFrameCount == frameUpdateRate)
* {
* debugFrameCount = 0;
* yield return null;
* }
*
* }
*/
}
if (curNode.Coord != _end)
{
String dbgMsg = "End Node Null -- No path found?";
Msg.LogDebug(TAG_DEBUG, dbgMsg, MsgPriLvl.HIGH);
AStarPath = null;
//return null; new List<IVector2>();
}
else
{
var path = new List <IVector2>()
{
curNode.Coord
};
var closedNode = new AStarClosedNode(curNode);
;
while (closedNode.Parent != null)
{
path.Insert(0, closedNode.Parent.Value);
Msg.LogDebug(TAG_DEBUG, "Added to path: " + closedNode.Parent, MsgPriLvl.LOW);
closedNode = closedList[closedNode.Parent.Value]; //TODO Seed 705 crashes here with invalid key
}
AStarPath = path;
closedList[curNode.Coord] = new AStarClosedNode(curNode);
/* //UNITY
* if (debugMe)
* {
* foreach (var coord in path)
* texture.SetPixel(coord.x, coord.y, new Color(0.8f, 0.8f, 1f, 1));
* texture.Apply();
* yield return null;
* }
*/
}
//yield return null; //UNITY
}
