mazestuff

public class MyMazeSolver : BaseMazeSolver{
	public MyMazeSolver(){ //this implicitly extends the default constructor of the base class

		//if you don't want to lock the UI, you can't really do this with a loop. T
		//his problem also persists if you have students editing main
		//while (WinnerWinnerChickenDinner() == false){
		//	TurnLeft();
		//	GoForward();
		//}

		//if the students don't have any way of inspecting the maze state from code (other than they won)
		//then all they can to is starting moves, then repeatforever moves
		DoThisOnce();
		ThenDoThisUntilIWin();
	}

	public void DoThisOnce(){
		//example student code
		TurnLeft();
		int i = 0;
		for (i = 0; i < 15; i++){
			GoForward();
		}
		//these happen once at the start
	}

	public void ThenDoThisUntilIWin(){
		//example student code
		TurnRight();
		TurnRight();
		TurnLeft();
		GoForward();
	}
}

public class BaseMazeSolver(){
	public BaseMazeSolver(){
		this.StartingMovesQueue = new PriorityQueue<Move>();
	}
	//protected will be accessible to subclasses, if it's easier, just make those things public (since it's the same to the students)
	//however, don't make the private things anything but private, since you want to hide them from autocompletion
	protected void TurnLeft(){
		this.MovesQueue.Add(Move.Left);
	};
	protected void TurnRight(){
//and so on
//...
		this.MovesQueue.Add(Move.Down);
	}

	private Queue<Move> MovesQueue{get; private set;} //i'm using C# properties, they're more terse

	//no good way to hide this from the autocompletion without mucking around with packages (not worth it)
	public Move GetNextMove(){
		//TODO loop detection here
		if (MovesQueue.Count() == 0){
			this.ThenDoThisUntilIWin();
		}
		var nextMove = MovesQueue.poll();
		return nextMove();
	}
}