/// <summary>
/// solve the maze problem - singal player.
/// </summary>
/// <param name="name">maze name</param>
/// <param name="algo">0-bfs, 1-dfs</param>
/// <returns>get solution of maze problem</returns>
public Solution <Position> Solve(string name, int algo)
{
if (this.mazesSinglePlayerPool.ContainsKey(name))
{
if (!this.solutionsSinglePlayerPool.ContainsKey(name))
{
ISearcher <Position> searchAlgo;
Solution <Position> solution;
Maze maze = this.mazesSinglePlayerPool[name];
Adapter <Position> adapter = new MazeToSearchableAdapter <Position>(maze);
ISearchable <Position> searchableMaze = new Searchable <Position, Direction>(adapter);
switch (algo)
{
case 0:
searchAlgo = new Bfs <Position>();
break;
case 1:
searchAlgo = new Dfs <Position>();
break;
default:
//Error at algorithem numeber: 0 - for bfs, 1 - for dfs
return(null);
}
solution = searchAlgo.Search(searchableMaze);
this.solutionsSinglePlayerPool.Add(name, solution);
}
return(this.solutionsSinglePlayerPool[name]);
}
//name of maze doesn't exist at maze single player pool"
return(null);
}
protected override void SolveInstance(IGH_DataAccess DA)
{
Graph graph = null;
DA.GetData(0, ref graph);
Bfs bfs = new Bfs(graph);
DA.SetData(0, bfs.IsGraphConnected());
}
private void Update()
{
FireSlider.value = _gunTime;
_gunTime = Mathf.Max(0, _gunTime - Time.deltaTime);
if (_gunTime == 0)
{
Gun = God.Instance.DefaultGun;
GunImage.gameObject.SetActive(false);
}
ScoreText.text = "SCORE: " + Score;
_tick += Time.deltaTime;
if (_tick >= PathDelay)
{
_tick = 0;
Bfs.Search(Walls, new Vector2Int((int)transform.position.x, (int)transform.position.y));
}
if (God.Instance.UseMouse)
{
//transform.LookAt2D(God.Instance.Camera.ScreenToWorldPoint(Input.mousePosition));
GunSprite.transform.LookAt2D(God.Instance.Camera.ScreenToWorldPoint(Input.mousePosition));
}
Vector2 moving = new Vector2(Input.GetAxis(_horAxis), Input.GetAxis(_verAxis));
if (moving.sqrMagnitude > 0.01f)
{
Animator.speed = 1f;
_direction = moving.normalized;
transform.LookAt2D((Vector2)transform.position + _direction);
_rigidbody.MovePosition((Vector2)transform.position
+ moving.normalized * God.Instance.PlayerSpeed * Time.deltaTime);
}
else
{
Animator.speed = 0.1f;
}
_fireCoolDown -= Time.deltaTime;
if (_fireCoolDown < 0 && Input.GetAxis(_fireAxis) > 0)
{
_fireCoolDown = Gun.Delay * God.Instance.FireCoolDown;
Fire(_direction);
}
}
public static void Client()
{
var vertices = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var edges = new[]
{
Tuple.Create(1, 2), Tuple.Create(1, 3), Tuple.Create(2, 4),
Tuple.Create(3, 5), Tuple.Create(3, 6), Tuple.Create(4, 7),
Tuple.Create(5, 7), Tuple.Create(5, 8), Tuple.Create(5, 6),
Tuple.Create(8, 9), Tuple.Create(9, 10), Tuple.Create(8, 10),
};
var graph = new Graph <int>(vertices, edges);
var bfs = new Bfs();
var path = new List <int>();
// Tracing BFS path
Console.WriteLine(string.Join(", ", bfs.ApplyBfs(graph, 1, v => path.Add(v))));
// 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Console.WriteLine(string.Join(", ", path));
// 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
// Find shorest path
var startVertex = 1;
var shortestPath = bfs.ShortestPathFunction(graph, startVertex);
foreach (var vertex in vertices)
{
Console.WriteLine("shortest path to {0,2}: {1}",
vertex, string.Join(", ", shortestPath(vertex)));
}
//shortest path to 1: 1
//shortest path to 2: 1, 2
//shortest path to 3: 1, 3
//shortest path to 4: 1, 2, 4
//shortest path to 5: 1, 3, 5
//shortest path to 6: 1, 3, 6
//shortest path to 7: 1, 2, 4, 7
//shortest path to 8: 1, 3, 5, 8
//shortest path to 9: 1, 3, 5, 8, 9
//shortest path to 10: 1, 3, 5, 8, 10
}
internal void EnumerateVertices(GraphParameter <Graph> p)
{
SimpleIncidenceGraph graph = p.Graph;
// Arrange
int source = graph.VertexCount >> 1;
byte[] setBackingStore = ArrayPool <byte> .Shared.Rent(Math.Max(graph.VertexCount, source + 1));
Array.Clear(setBackingStore, 0, setBackingStore.Length);
IndexedSet exploredSet = new(setBackingStore);
// Act
IEnumerator <int> basicSteps = Bfs.EnumerateVertices(graph, source, graph.VertexCount) !;
IEnumerator <int> enumerableSteps = EnumerableBfs.EnumerateVertices(graph, source, exploredSet) !;
// Assert
while (true)
{
bool expectedHasCurrent = enumerableSteps.MoveNext();
bool actualHasCurrent = basicSteps.MoveNext();
Assert.Equal(expectedHasCurrent, actualHasCurrent);
if (!expectedHasCurrent || !actualHasCurrent)
{
break;
}
int expected = enumerableSteps.Current;
int actual = basicSteps.Current;
if (expected != actual)
{
Assert.Equal(expected, actual);
break;
}
}
}
public JObject GetSolve(string name, int alg)
{
ISearcher <Position> algorithm;
if (alg == 0)
{
//BFS way
algorithm = new Bfs <Position>();
}
else
{
//DFS way
algorithm = new Dfs <Position>();
}
String mazeSolve = myModel.solve(name, algorithm);
JObject solveObj = new JObject();
solveObj["Solution"] = mazeSolve;
return(solveObj);
}
public void Test_SGG_Creation()
{
var g = new SquireGridGraph(ROW, COL, false);
for (int i = 0; i < g.VerticesNum(); i++)
{
int row, col;
g.GetRowAndColFromVertex(i, out row, out col);
g.SetNeighbor(row, col, Direction.East, 1);
g.SetNeighbor(row, col, Direction.South, 1);
g.SetNeighbor(row, col, Direction.West, 1);
g.SetNeighbor(row, col, Direction.North, 1);
}
ITravel dfs = new Bfs(g, preVisit);
dfs.Travel(16);
Assert.AreEqual(6280, g.EdgeNum());
}
/// <summary>
/// Executes the commands that the client sent
/// </summary>
/// <param name="args">The arguments of the commands.</param>
/// <param name="client">The client that sent the command.</param>
/// <returns>a string of the result to the client</returns>
public string Execute(string[] args, TcpClient client)
{
string name = args[0];
int algorithmType = int.Parse(args[1]);
ISearcher <Position> algorithm;
//find what algorithm it is
if (algorithmType == 0)
{
//BFS way
algorithm = new Bfs <Position>();
}
else
{
//DFS way
algorithm = new Dfs <Position>();
}
string sol = model.solve(name, algorithm);
int nodesEvaluated = algorithm.EvaluatedNodes;
return(ToJSON(name, sol, nodesEvaluated));
}
/// <summary>
/// Solves the maze BFS.
/// </summary>
/// <param name="name">The name.</param>
/// <returns>Solution</returns>
public Solution <Position> solveMazeBFS(string name)
{
Solution <Position> solution = null;
// Check if the maze exist.
if (modelData.Mazes.ContainsKey(name))
{
ISearchable <Position> mazeObjectAdapter = new MazeAdapter(modelData.Mazes[name]);
ISearcher <Position> BFS = new Bfs <Position>();
// Check if the solution exist.
if (modelData.BfsSolutions.ContainsKey(name))
{
solution = modelData.BfsSolutions[name];
}
else
{
// Calculate the solution.
solution = BFS.Search(mazeObjectAdapter);
modelData.BfsSolutions.Add(name, solution);
}
}
return(solution);
}
/// <summary>
/// compares between a bfs and dfs searchers on a maze.
/// </summary>
public static void CompareSolvers()
{
IMazeGenerator gen = new DFSMazeGenerator();
// get a random maze size 50X50.
Maze maze = gen.Generate(50, 50);
/// print the maze.
Console.Write(maze);
// make the maze searchable.
ISearchable <Position> myMaze = new MazeSearchable(maze);
// bfs solution.
ISearcher <Position> bfs = new Bfs <Position>();
bfs.Search(myMaze);
// dfs solution.
ISearcher <Position> dfs = new Dfs <Position>();
dfs.Search(myMaze);
// write number of nodes evaluated in each search.
Console.WriteLine(bfs.GetNumberOfNodesEvaluated());
Console.WriteLine(dfs.GetNumberOfNodesEvaluated());
Console.ReadKey();
}
