public void TestAStarLinearPath()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var watch = new Stopwatch();
watch.Start();
var path = astar.FindPath(world, new BoundingBox(),
new Coordinates3D(0, 4, 0), new Coordinates3D(5, 4, 0));
watch.Stop();
DrawGrid(path, world);
Console.WriteLine(watch.ElapsedMilliseconds + "ms");
var expected = new[]
{
new Coordinates3D(0, 4, 0),
new Coordinates3D(1, 4, 0),
new Coordinates3D(2, 4, 0),
new Coordinates3D(3, 4, 0),
new Coordinates3D(4, 4, 0),
new Coordinates3D(5, 4, 0)
};
for (int i = 0; i < path.Waypoints.Count; i++)
Assert.AreEqual(expected[i], path.Waypoints[i]);
}
public void TestAStarDiagonalPath()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var start = new Coordinates3D(0, 4, 0);
var end = new Coordinates3D(5, 4, 5);
var path = astar.FindPath(world, new BoundingBox(), start, end);
DrawGrid(path, world);
// Just test the start and end, the exact results need to be eyeballed
Assert.AreEqual(start, path.Waypoints[0]);
Assert.AreEqual(end, path.Waypoints[path.Waypoints.Count - 1]);
}
public void TestAStarExitRoom()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var start = new Coordinates3D(0, 4, 0);
var end = new Coordinates3D(5, 4, 0);
// North wall
for (int x = -4; x < 4; x++)
world.SetBlockID(new Coordinates3D(x, 4, -4), 1);
// East wall
for (int z = -4; z < 4; z++)
world.SetBlockID(new Coordinates3D(3, 4, z), 1);
// South wall
for (int x = -4; x < 4; x++)
world.SetBlockID(new Coordinates3D(x, 4, 4), 1);
var path = astar.FindPath(world, new BoundingBox(), start, end);
DrawGrid(path, world);
// Just test the start and end, the exact results need to be eyeballed
Assert.AreEqual(start, path.Waypoints[0]);
Assert.AreEqual(end, path.Waypoints[path.Waypoints.Count - 1]);
}
public void TestAStarImpossible()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var start = new Coordinates3D(0, 4, 0);
var end = new Coordinates3D(5, 4, 0);
world.SetBlockID(start + Coordinates3D.East, 1);
world.SetBlockID(start + Coordinates3D.West, 1);
world.SetBlockID(start + Coordinates3D.North, 1);
world.SetBlockID(start + Coordinates3D.South, 1);
var path = astar.FindPath(world, new BoundingBox(), start, end);
Assert.IsNull(path);
}
public WanderState()
{
IdleChance = 20;
Distance = 25;
PathFinder = new AStarPathFinder();
}
public WanderState()
{
IdleChance = 5;
Distance = 16;
PathFinder = new AStarPathFinder();
}
public override void Handle(IRemoteClient client, string alias, string[] arguments)
{
if (arguments.Length != 1)
{
Help(client, alias, arguments);
return;
}
int id;
if (!int.TryParse(arguments[0], out id))
{
Help(client, alias, arguments);
return;
}
var manager = client.Server.GetEntityManagerForWorld(client.World);
var entity = manager.GetEntityByID(id) as MobEntity;
if (entity == null)
{
client.SendMessage(ChatColor.Red + "An entity with that ID does not exist in this world.");
return;
}
Task.Factory.StartNew(() =>
{
var astar = new AStarPathFinder();
var path = astar.FindPath(client.World, entity.BoundingBox, (Coordinates3D)entity.Position, (Coordinates3D)client.Entity.Position);
if (path == null)
{
client.SendMessage(ChatColor.Red + "It is impossible for this entity to reach you.");
return;
}
entity.CurrentPath = path;
});
}
public WanderState()
{
IdleChance = 20;
Distance = 25;
PathFinder = new AStarPathFinder();
}
public void TestAStarObstacle()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var start = new Coordinates3D(0, 4, 0);
var end = new Coordinates3D(5, 4, 0);
world.SetBlockID(new Coordinates3D(3, 4, 0), 1); // Obstacle
var watch = new Stopwatch();
watch.Start();
var path = astar.FindPath(world, new BoundingBox(), start, end);
watch.Stop();
DrawGrid(path, world);
Console.WriteLine(watch.ElapsedMilliseconds + "ms");
// Just test the start and end, the exact results need to be eyeballed
Assert.AreEqual(start, path.Waypoints[0]);
Assert.AreEqual(end, path.Waypoints[path.Waypoints.Count - 1]);
Assert.IsFalse(path.Waypoints.Contains(new Coordinates3D(3, 4, 0)));
}
public void TestAStarImpossible()
{
var world = new TrueCraft.Core.World.World("default", new FlatlandGenerator());
var astar = new AStarPathFinder();
var start = new Coordinates3D(0, 4, 0);
var end = new Coordinates3D(5, 4, 0);
world.SetBlockID(start + Coordinates3D.East, 1);
world.SetBlockID(start + Coordinates3D.West, 1);
world.SetBlockID(start + Coordinates3D.North, 1);
world.SetBlockID(start + Coordinates3D.South, 1);
var watch = new Stopwatch();
watch.Start();
var path = astar.FindPath(world, new BoundingBox(), start, end);
watch.Stop();
Console.WriteLine(watch.ElapsedMilliseconds + "ms");
Assert.IsNull(path);
}
public WanderState()
{
Distance = 25;
PathFinder = new AStarPathFinder();
}
