async Task <IHttpResponse> GetPackageVersion(Dictionary <string, string> query, IHttpContext __)
{
UpdatePackages(query);
var(GitRef, Path, Manifest) = Packages.FirstOrDefault(p =>
(string)p.Manifest["name"] == query["package"] &&
(string)p.Manifest["version"] == query["version"]);
if (Manifest == null)
{
return(NotFound);
}
return(JsonResponse(new JObject(Manifest)
{
["repository"] = new JObject
{
["revision"] = GitRef,
["type"] = "git",
["url"] = GetRemote(query)
}
["dist"] = await GetDist(query, GitRef, Path, Manifest),
["_id"] = $"{query["package"]}@{query["version"]}"
}));
}
//public GetNodeByXY NodeXY;
public IClopNode FindPath(IClopNode s, IClopNode f, GetDist Dist, GetNodeByXY NodeXY)
{
//Some checks
if ((Dist == null) | (NodeXY == null))
{
throw new ArgumentException("Delegate Function(s) not set! (Functions Dist and NodeXY)");
}
//Reset
Open.Clear();
Closed.Clear();
//Aux
int[] dx = new int[8] {
-1, -1, -1, 1, 1, 1, 0, 0
};
int[] dy = new int[8] {
-1, 0, 1, -1, 0, 1, -1, 1
};
IClopNode n, nn;
//GO!
//s.g = 0 // s is the start node
s.gdist = 0;
//s.h = GoalDistEstimate( s )
s.hdist = Dist(s, f);
//s.f = s.g + s.h
//OK
//s.Parent = null
s.Parent = null;
//push s on Open
Open.Add(s, null);
//while Open is not empty
while (Open.Count > 0)
{
//pop node n from Open // n has the lowest f
//System.Windows.Forms.MessageBox.Show(Open.Count.ToString());
n = Open.Pop();
//if n is a goal node
if (n.Equals(f))
{
// construct path
// return success
return(n);
}
//for each successor n' of n
for (int i = 0; i <= 7; i++)
{
nn = NodeXY(n.px + dx[i], n.py + dy[i]);
if (nn != null)
{
//newg = n.g + cost(n,n')
double newg = n.gdist + nn.cost;
//if n' is in Open or Closed,and n'.g <= newg { skip }
if (!((Open.Contains(nn) || Closed.Contains(nn)) && (nn.gdist <= newg)))
{
//n'.Parent = n
nn.Parent = n;
//n'.g = newg
nn.gdist = newg;
//n'.h = GoalDistEstimate( n' )
nn.hdist = Dist(nn, f);
//n'.f = n'.g + n'.h
//OK
//if n' is in Closed remove it from Closed
//nn.visited=false;
if (Closed.Contains(nn))
{
Closed.Remove(nn);
}
//if n' is not yet in Open push n' on Open
if (!(Open.Contains(nn)))
{
Open.Add(nn, null);
}
}
}
}
//push n onto Closed
//n.visited=true;
Closed.Add(n, null);
}
// return failure // if no path found
return(null);
}
