/// <summary>
/// Use on the teleporter to teleport pac
/// </summary>
/// <param name="pac">The pac to teleport</param>
/// <returns>Return <c>true</c> if one of the teleporter teleport pac.
/// </returns>
/// <seealso cref="Teleporter.Teleport(Pac)"/>
public bool Teleport(Pac pac)
{
bool result = false;
for (int i = 0, maxi = Teleporters.Count; i < maxi && !result; i++)
{
result = Teleporters[i].Teleport(pac);
}
return(result);
}
/// <summary>
/// Teleport <paramref name="pac"/> from <see cref="Position1"/> to
/// <see cref="Position2"/> is pac's position if <see cref="Position1"/>
/// or vice-versa.
/// </summary>
/// <param name="pac">The pac to teleport</param>
/// <returns>Return <c>true</c> if pac did teleport, <c>false</c> otherwise</returns>
/// <exception cref="TeleporterException">Thrown when the teleporte has not <see cref="Position2"/> set.</exception>
public bool Teleport(Pac pac)
{
bool result = false;
if (Activated)
{
if (Position2.Equals(new Vector2(-1, -1)))
{
throw new TeleporterException("Teleporter destination has not been configured yet. Where does pac will go without a destination? Nowhere!");
}
if (pac.ConvertPositionToTileIndexes().Equals(Position1))
{
pac.Position = new Vector2(Position2.X * Maze.SPRITE_DIMENSION, Position2.Y * Maze.SPRITE_DIMENSION);
result = true;
}
else if (pac.ConvertPositionToTileIndexes().Equals(Position2))
{
pac.Position = new Vector2(Position1.X * Maze.SPRITE_DIMENSION, Position1.Y * Maze.SPRITE_DIMENSION);
result = true;
}
}
// If pacman has been teleported, disable the teleporter until pac is away from the teleporter point
// (this method prevent pac from teleporting in an infinite loop from one spot to another)
if (result)
{
Activated = false;
Vector2 currentPosition = pac.Position;
pac.OnPositionChangedAction = (Vector2 position) =>
{
if (!pac.ConvertPositionToTileIndexes().Equals(pac.ConvertPositionToTileIndexes(currentPosition)))
{
Activated = true;
// Delete the delegate
pac.OnPositionChangedAction = (Vector2 pos) => { };
}
};
}
return(result);
}
