public GameMoveType GetNextMove(GameState gameState, IGameInteractionService interactionService)
{
while(true)
{
var move = GameMoveType.None;
var key = Console.ReadKey ().Key;
switch(key)
{
// Quit the program if ESC is pressed.
case ConsoleKey.Escape:
if(this.GameQuitRequested != null)
{
this.GameQuitRequested ();
}
return GameMoveType.None;
case ConsoleKey.UpArrow:
// Arrow up = move the item below the empty space UP.
move = GameMoveType.MoveItemBelow;
break;
case ConsoleKey.DownArrow:
// Arrow down = move the item above the empty space DOWN.
move = GameMoveType.MoveItemAbove;
break;
case ConsoleKey.LeftArrow:
// Arrow left = move the item right of the empty space LEFT.
move = GameMoveType.MoveItemRight;
break;
case ConsoleKey.RightArrow:
// Arrow right = move the item left of the empty space RIGHT.
move = GameMoveType.MoveItemLeft;
break;
default:
Console.Beep ();
break;
}
if(interactionService.CanMove(gameState.GameField, move))
{
return move;
}
}
}
