public KeyValuePair <float, Tile[]> GetDijkstraPath(Tile source, Tile destination, PathType givenPathType)
{
bool pathFound = false;
int count = 0;
Tile[] bestPath = new Tile[0];
float distance = -1;
float[][] distanceMap = new float[MAPWIDTH][];
Position?[][] previousTilePos = new Position?[MAPWIDTH][];
SearchAbleArray <Tile> queue = new SearchAbleArray <Tile>();
SearchAbleArray <Tile> diagonalQueue = new SearchAbleArray <Tile>();
SearchAbleArray <Tile> sidewaysQueue = new SearchAbleArray <Tile>();
SearchAbleArray <Tile> backwardsQueue = new SearchAbleArray <Tile>();
TileArray explored = new TileArray();
queue.Add(source);
for (int i = 0; i < MAPWIDTH; i++)
{
distanceMap[i] = new float[MAPHEIGHT];
previousTilePos[i] = new Position?[MAPHEIGHT];
for (int j = 0; j < MAPHEIGHT; j++)
{
distanceMap[i][j] = -1;
previousTilePos[i][j] = null;
}
}
previousTilePos[source.GetX()][source.GetY()] = new Position(source.GetX(), source.GetY());
distanceMap[source.GetX()][source.GetY()] = 0;
while ((queue.GetSize() > 0 || sidewaysQueue.GetSize() > 0 || backwardsQueue.GetSize() > 0) && !pathFound)
{
Tile[] currQueueArray;
SearchAbleArray <Tile> currentQueue;
if (queue.GetSize() > 0)
{
currentQueue = queue;
}
else if (diagonalQueue.GetSize() > 0)
{
currentQueue = diagonalQueue;
}
else if (sidewaysQueue.GetSize() > 0)
{
currentQueue = sidewaysQueue;
}
else
{
currentQueue = backwardsQueue;
}
currQueueArray = currentQueue.GetOrderedArray();
Tile currentElement = currQueueArray[0];
float minQueueDistance = distanceMap[currQueueArray[0].GetX()][currQueueArray[0].GetY()];
for (int i = 0; i < currQueueArray.Length; i++)
{
if (distanceMap[currQueueArray[i].GetX()][currQueueArray[i].GetY()] < minQueueDistance)
{
currentElement = currQueueArray[i];
}
}
explored.AddTile(currentElement);
if (currentElement == destination)
{
pathFound = true;
}
else
{
Tile[] queueAdjacent = GetAdjacent(currentElement, destination);
for (int i = 0; i < queueAdjacent.Length; i++)
{
float currToNextTravelDistance = GetAdjacentTravelDistance(currentElement, queueAdjacent[i], givenPathType);
if (currToNextTravelDistance > 0)
{
if (previousTilePos[queueAdjacent[i].GetX()][queueAdjacent[i].GetY()] == null)
{
if (i < 1)
{
queue.Add(queueAdjacent[i]);
}
else if (i < 3)
{
diagonalQueue.Add(queueAdjacent[i]);
}
else if (i < 5)
{
sidewaysQueue.Add(queueAdjacent[i]);
}
else
{
backwardsQueue.Add(queueAdjacent[i]);
}
float alteredDistance = distanceMap[currentElement.GetX()][currentElement.GetY()] + currToNextTravelDistance;
if (distanceMap[queueAdjacent[i].GetX()][queueAdjacent[i].GetY()] < 0 || alteredDistance < distanceMap[queueAdjacent[i].GetX()][queueAdjacent[i].GetY()])
{
distanceMap[queueAdjacent[i].GetX()][queueAdjacent[i].GetY()] = alteredDistance;
previousTilePos[queueAdjacent[i].GetX()][queueAdjacent[i].GetY()] = new Position(currentElement.GetX(), currentElement.GetY());
}
}
}
}
}
currentQueue.Remove(currentElement);
}
Tile[] tempBestPath = new Tile[0];
Tile previousTile = destination;
do
{
if (previousTilePos[previousTile.GetX()][previousTile.GetY()] != null)
{
TestMain.AddElement <Tile>(ref tempBestPath, previousTile);
previousTile = GetTile((Position)previousTilePos[previousTile.GetX()][previousTile.GetY()]);
}
else
{
throw new NoPathException("There is no path between " + source + " and " + destination + " when travelling by " + givenPathType);
}
}while (previousTile != source);
if (tempBestPath.Length > 5)
{
Debug.Log("cool");
}
TestMain.AddElement <Tile>(ref tempBestPath, source);
bestPath = new Tile[tempBestPath.Length];
for (int i = tempBestPath.Length - 1; i >= 0; i--)
{
bestPath[i] = tempBestPath[i];
}
return(new KeyValuePair <float, Tile[]>(distance, bestPath));
}
public Tile[] FillArea(Tile[] outerPoint)
{
if (outerPoint.Length > 2)
{
TileArray perimeter = new TileArray();
SearchAbleArray <Tile> corner = new SearchAbleArray <Tile>();
for (int i = 0; i < outerPoint.Length; i++)
{
int nextPoint = i + 1;
if (nextPoint == outerPoint.Length)
{
nextPoint = 0;
}
Tile[] tempPerimeter = GetBestPath(outerPoint[i], outerPoint[nextPoint], PathType.IgnoreAll);
int precedingIndex;
int afterIndex;
if (nextPoint == 0)
{
precedingIndex = outerPoint.Length - 1;
}
else
{
precedingIndex = nextPoint - 1;
}
if (nextPoint == outerPoint.Length - 1)
{
afterIndex = 0;
}
else
{
afterIndex = nextPoint + 1;
}
while (outerPoint[afterIndex].GetX() == outerPoint[nextPoint].GetX())
{
corner.Add(outerPoint[afterIndex]);
if (++afterIndex >= outerPoint.Length)
{
afterIndex = 0;
}
}
if ((outerPoint[precedingIndex].GetX() <= outerPoint[nextPoint].GetX() && outerPoint[afterIndex].GetX() <= outerPoint[nextPoint].GetX()) ||
(outerPoint[precedingIndex].GetX() >= outerPoint[nextPoint].GetX() && outerPoint[afterIndex].GetX() >= outerPoint[nextPoint].GetX()))
{
corner.Add(outerPoint[nextPoint]);
}
for (int j = 0; j < tempPerimeter.Length; j++)
{
//if the end tile just addhave already assigned a corner or not
if (j == tempPerimeter.Length - 1)
{
perimeter.AddTile(tempPerimeter[j]);
}
//else if not the startTile
else if (j != 0)
{
//if it is inline with the following tile or with the endTile
int temp1 = tempPerimeter[j].GetX();
int temp2 = tempPerimeter[j + 1].GetX();
bool temp3 = (tempPerimeter[j].GetX() == tempPerimeter[j + 1].GetX());
if (tempPerimeter[j].GetX() == tempPerimeter[j + 1].GetX() ||
(tempPerimeter[j].GetX() == outerPoint[nextPoint].GetX() && corner.Contains(outerPoint[nextPoint])))
{
corner.Add(tempPerimeter[j]);
}
perimeter.AddTile(tempPerimeter[j]);
}
}
}
Tile[] area = new Tile[0];
for (int i = 0; i < perimeter.GetAmountofRows(); i++)
{
Tile[] rowArray = perimeter.IterateThroughRows(i);
for (int j = 0; j < rowArray.Length; j++)
{
if (!corner.Contains(rowArray[j]))
{
Tile currTile = rowArray[j];
Tile endTile = rowArray[j + 1];
while (corner.Contains(endTile))
{
j++;
endTile = rowArray[j + 1];
}
for (int k = currTile.GetY(); k <= endTile.GetY(); k++)
{
Position currPos = new Position(currTile.GetX(), k);
TestMain.AddElement <Tile>(ref area, GetTile(currPos));
}
j++;
}
else
{
TestMain.AddElement <Tile>(ref area, rowArray[j]);
}
}
}
return(area);
}
else
{
return(null);
}
}
public Tile[] GetBestPath(Tile startTile, Tile endTile, PathType givenPathType)
{
if (givenPathType == PathType.IgnoreAll)
{
SearchAbleArray <Tile> bestPath = new SearchAbleArray <Tile>();
int[] direction = GetDirection(startTile, endTile);
bestPath.Add(startTile);
Tile lastItem = startTile;
if (Mathf.Abs(direction[0]) > Mathf.Abs(direction[1]))
{
for (int i = 0; i < Mathf.Abs(direction[0]); i++)
{
Position nextTilepos = bestPath.GetLastItem().GetPosition();
lastItem = GetTile(nextTilepos);
//formatting from float to int hack
if ((i < (Mathf.Abs((float)direction[1] / 2)) || i >= (Mathf.Abs((float)direction[0]) - (Mathf.Abs((float)direction[1]) / 2))))
{
//go diagonal in direction[0]
nextTilepos.x += direction[0] / (int)Mathf.Abs(direction[0]);
nextTilepos.y += direction[1] / (int)Mathf.Abs(direction[1]);
if (direction[1] % 2 == 1 && Mathf.Abs(direction[0]) - i < 1)
{
direction[1] -= direction[1] / (int)Mathf.Abs(direction[1]);
}
}
else
{
//go in direction[0]
nextTilepos.x += direction[0] / (int)Mathf.Abs(direction[0]);
}
bestPath.Add(GetTile(nextTilepos));
}
return(bestPath.GetOrderedArray());
}
else //if (difference < 0)
{
Position nextTilepos = bestPath.GetLastItem().GetPosition();
for (int i = 0; i < Mathf.Abs(direction[1]); i++)
{
if ((i < (Mathf.Abs((float)direction[0] / 2)) || i >= (Mathf.Abs((float)direction[1]) - (Mathf.Abs((float)direction[0]) / 2))))
{
//go diagonal in direction[1]
nextTilepos.x += direction[0] / (int)Mathf.Abs(direction[0]);
nextTilepos.y += direction[1] / (int)Mathf.Abs(direction[1]);
if (direction[0] % 2 == 1 && Mathf.Abs(direction[0]) - i < 1)
{
direction[0] -= direction[0] / (int)Mathf.Abs(direction[0]);
}
}
else
{
//go in direction[1]
nextTilepos.y += direction[1] / (int)Mathf.Abs(direction[1]);
}
bestPath.Add(GetTile(nextTilepos));
}
}
return(bestPath.GetOrderedArray());
}
else
{
KeyValuePair <float, Tile[]> output = GetDijkstraPath(startTile, endTile, givenPathType);
return(output.Value);
}
}