static public List <Vector2> FindPath(
Vector2 start,
Vector2 end,
bool flying = false)
{
Vector2 startTile = map.getTileFromPosition(start.x, start.y);
Vector2 endTile = map.getTileFromPosition(end.x, end.y);
if ((map.getTileTypeFromPosition(end.x, end.y) != MapGeneration.TileType.Ground ||
map.getTileTypeFromPosition(start.x, start.y) != MapGeneration.TileType.Ground) &&
!flying)
{
return(null);
}
openList.Clear();
nodeCosts.Clear();
nodeStatus.Clear();
PathNode startNode;
PathNode endNode;
endNode = new PathNode(null, null, endTile, 0);
startNode = new PathNode(null, endNode, startTile, 0);
addNodeToOpenList(startNode);
while (openList.Count > 0)
{
PathNode currentNode = openList[openList.Count - 1];
if (currentNode.IsEqualToNode(endNode))
{
List <Vector2> bestPath = new List <Vector2>();
while (currentNode != null)
{
bestPath.Insert(0, currentNode.GridLocation);
currentNode = currentNode.ParentNode;
}
return(bestPath);
}
openList.Remove(currentNode);
nodeCosts.Remove(currentNode.GridLocation);
foreach (PathNode possibleNode in findAdjacentNodes(currentNode, endNode, flying))
{
if (nodeStatus.ContainsKey(possibleNode.GridLocation))
{
if (nodeStatus[possibleNode.GridLocation] ==
NodeStatus.Closed)
{
continue;
}
if (
nodeStatus[possibleNode.GridLocation] ==
NodeStatus.Open)
{
if (possibleNode.TotalCost >=
nodeCosts[possibleNode.GridLocation])
{
continue;
}
}
}
addNodeToOpenList(possibleNode);
}
nodeStatus[currentNode.GridLocation] = NodeStatus.Closed;
}
return(null);
}
