/// <summary>
/// Initialize the instance. This method MUST BE called before using this class.
/// </summary>
/// <param name="maze">The current maze</param>
/// <param name="pac">The pac the user is playing</param>
/// <param name="leader">The leader of the ghost (often, it is Blinky, the red ghost)</param>
/// <param name="others">Array containing the others ghosts (all ghosts except the leader)</param>
public void Initialize(Maze maze, Pac pac, Ghost leader, Ghost[] others)
{
PlayBeginning = -1;
if (Ghosts == null)
{
Ghosts = new List <Ghost>(4);
}
else
{
Ghosts.Clear();
}
Map = maze;
Pac = pac;
Ghosts.Add(leader);
Ghosts.AddRange(others);
// Search startup points for every ghosts
List <Cell> list = Map.SearchTile(TileType.BLINKY_STARTUP);
if (list != null && list.Count > 0)
{
Vector3 result = list[0].Dimension.Min;
Ghosts[0].StartingPoint = Entrance = new Vector2(result.X, result.Y);
// Now, the program must find the start area for the other ghosts
list = Map.SearchTile(TileType.GHOSTS_STARTUP);
if (list != null && list.Count >= (Ghosts.Count - 1))
{
for (int i = 1, maxi = Ghosts.Count; i < maxi; i++)
{
// 1 <= i <= Ghosts.Count, but Ghosts.Count-1 <= list.Count. Therefore, list[i-1] will not throw an ArrayOutOfBoundException
result = list[i - 1].Dimension.Min;
Ghosts[i].StartingPoint = new Vector2(result.X, result.Y);
}
}
else
{
throw new InvalidOperationException("No start point for the ghosts in the maze");
}
}
else
{
throw new InvalidOperationException("No start point for Blinky in the maze");
}
IsInitialized = true;
}