private Coordinate[] GetNeighbours(Coordinate coordinate)
{
var result = new List <Coordinate>(6);
var coord1 = new Coordinate(coordinate.Q, coordinate.R - 1);
if (Hexes.ContainsKey(coord1))
{
result.Add(coord1);
}
var coord2 = new Coordinate(coordinate.Q + 1, coordinate.R - 1);
if (Hexes.ContainsKey(coord2))
{
result.Add(coord2);
}
var coord3 = new Coordinate(coordinate.Q - 1, coordinate.R);
if (Hexes.ContainsKey(coord3))
{
result.Add(coord3);
}
var coord4 = new Coordinate(coordinate.Q + 1, coordinate.R);
if (Hexes.ContainsKey(coord4))
{
result.Add(coord4);
}
var coord5 = new Coordinate(coordinate.Q - 1, coordinate.R + 1);
if (Hexes.ContainsKey(coord5))
{
result.Add(coord5);
}
var coord6 = new Coordinate(coordinate.Q, coordinate.R + 1);
if (Hexes.ContainsKey(coord6))
{
result.Add(coord6);
}
return(result.ToArray());
}
public override void Update(GameManager gameManager, int deltaTime)
{
var realPoint = gameManager.Input.PointerPosition.ToVector2() + gameManager.Camera.Offset;
Coordinate = GetCoordinate(realPoint);
if (gameManager.Input.IsLeftButtonPressed)
{
if (!Hexes.ContainsKey(Coordinate))
{
return;
}
var pawn = Hexes[Coordinate].Pawn;
if (pawn == null)
{
if (_selectedPawn != null)
{
_selectedPawn.Selected = false;
_selectedPawn = null;
PossibleMoves.Clear();
}
return;
}
pawn.Selected = true;
_selectedPawn = pawn;
var moveQueue = new Queue <Move>();
var openingMoves = GetNeighbours(Coordinate);
foreach (var openingMove in openingMoves)
{
var hex = Hexes[openingMove];
if (!hex.Passable)
{
continue;
}
moveQueue.Enqueue(new Move(hex));
}
var possibleMoves = new List <Coordinate>();
var visitedCoordinates = new HashSet <Coordinate>();
while (moveQueue.Count > 0)
{
var move = moveQueue.Dequeue();
if (visitedCoordinates.Contains(move.Hex.Coordinate))
{
continue;
}
visitedCoordinates.Add(move.Hex.Coordinate);
if (move.TotalMoveCost > pawn.MoveSpeed)
{
continue;
}
possibleMoves.Add(move.Hex.Coordinate);
var newMoves = GetNeighbours(move.Hex.Coordinate);
foreach (var newMove in newMoves)
{
if (visitedCoordinates.Contains(newMove))
{
continue;
}
var hex = Hexes[newMove];
if (!hex.Passable)
{
continue;
}
moveQueue.Enqueue(new Move(move, hex));
}
}
PossibleMoves = possibleMoves;
}
if (gameManager.Input.IsRightButtonPressed && _selectedPawn != null)
{
if (PossibleMoves.Contains(Coordinate))
{
_selectedPawn.Hex.Pawn = null;
_selectedPawn.Hex = Hexes[Coordinate];
_selectedPawn.Hex.Pawn = _selectedPawn;
_selectedPawn.Selected = false;
PossibleMoves.Clear();
}
}
}
