static void astar(String[] args)
{
XmlDocument doc = new XmlDocument();
doc.Load("c:/njones/src/SkippingRock/weewar.net/map.xml");
WeewarMap map = new WeewarMap(doc.DocumentElement);
AStarSearch astarsearch = new AStarSearch();
bool[] path = new bool[map.Height * map.Width];
Unit u = new Unit();
u.Type = UnitType.Trooper;
List<Terrain> bases = map.getTerrainsByType(TerrainType.Base);
Coordinate cs = bases[0].Coordinate;
Coordinate ce = bases[bases.Count-1].Coordinate;
SticksNode start = new SticksNode(map, cs, u);
SticksNode end = new SticksNode(map, ce, u);
astarsearch.SetStartAndGoalStates(start, end);
SearchState searchState;
uint searchSteps = 0;
do
{
searchState = astarsearch.SearchStep();
searchSteps++;
}
while (searchState == SearchState.Searching);
if (searchState == SearchState.Succeeded)
{
Console.WriteLine("Search found goal state");
SticksNode node = astarsearch.GetSolutionStart() as SticksNode;
Console.WriteLine( "Displaying solution");
int steps = 0;
for (; ; )
{
node = astarsearch.GetSolutionNext() as SticksNode;
if (node == null)
{
break;
}
path[node.Coordinate.Y * map.Height + node.Coordinate.X] = true;
//node.PrintNodeInfo();
steps++;
};
for (int y = 0; y < map.Height; y++)
{
if (y % 2 == 1) Console.Write(" ");
for (int x = 0; x < map.Width; x++)
{
if (x == start.Coordinate.X &&
y == start.Coordinate.Y)
Console.Write("S");
else if (x == end.Coordinate.X &&
y == end.Coordinate.Y)
Console.Write("G");
else
Console.Write(path[y * map.Height + x] ? "x" : "o");
}
Console.WriteLine();
}
Console.WriteLine("Solution steps {0}", steps);
// Once you're done with the solution you can free the nodes up
astarsearch.FreeSolutionNodes();
}
else if (searchState == SearchState.Failed)
{
Console.WriteLine("Search terminated. Did not find goal state");
}
// Display the number of loops the search went through
Console.WriteLine("searchSteps : " + searchSteps);
}
public SticksNode(WeewarMap map, Coordinate coord, Unit unit)
{
_map = map;
_coord = coord;
_unit = unit;
}
public SticksNode(WeewarMap map, Unit unit) : this(map, unit.Coordinate, unit) { }
private Coordinate MatchFreeBase(List<Coordinate> coords, WeewarMap wmap, Game g, Faction myFaction)
{
//Console.WriteLine("Coords:"+coords );
foreach (Coordinate c in coords)
{
Terrain t = wmap.get(c);
//Console.WriteLine("type :"+t.Type );
Faction owner = g.getTerrainOwner(c);
if (t.Type == TerrainType.Base && (owner == null || owner != myFaction) && g.getUnit(c) == null)
return c;
}
return null;
}
private List<Coordinate> getEnemyCities(Game game, WeewarMap wmap, Faction myFaction)
{
List<Coordinate> targets = new List<Coordinate>();
List<Terrain> bases = wmap.getTerrainsByType(TerrainType.Base);
foreach (Terrain ter in bases)
if (game.getTerrainOwner(ter.Coordinate) != myFaction)
targets.Add(ter.Coordinate);
return targets;
}
private List<Coordinate> getTargets(Game game, WeewarMap wmap, Faction myFaction)
{
List<Coordinate> targets = new List<Coordinate>();
foreach (Faction faction in game.Factions)
{
if (faction == myFaction)
continue;
foreach (Unit otherUnit in faction.Units)
targets.Add(otherUnit.Coordinate);
}
return targets;
}
