// find a path to a point in an unknown environment. Then find the shortest path
// from the origin to that point.
public int Run(string input = Input)
{
var memory = input.Split(',').Select(int.Parse);
var cpu = new IntCodeStateMachine(memory);
//ICommandInput commandInput = new ConsoleInput();
ICommandInput commandInput = new AiInput(cpu);
var repairDroid = new RepairDroid(cpu, commandInput);
var consoleView = new ConsoleView((40, 40));
var rcp = new RemoteControlProgram(repairDroid, commandInput, consoleView);
var finder = new RemoteDroidPathFinder(repairDroid, rcp);
int shortestPath = -1;
finder.ShortestPathFound += (_, steps) =>
{
shortestPath = steps;
rcp.Stop();
};
rcp.FoundOxygenSystem += (_, coord) =>
{
Console.SetCursorPosition(0, 2);
Console.WriteLine("Found oxygen tank at {0}. Navigating back to origin.", coord);
};
Console.WriteLine("1=N, 2=S, 3=W, 4=E");
rcp.Run();
return(shortestPath);
}
public RemoteControlProgram(RepairDroid repairDroid, ICommandInput commandInput, IView consoleView)
{
_relativePosition = Coordinate.Origin;
_lastPosition = _relativePosition;
_movementCommand = (MovementCommand)(-1);
commandInput.InputReceived += (_, v) => _movementCommand = (MovementCommand)v;
repairDroid.OnReply += (_, msg) =>
{
switch (msg)
{
case RepairDroidStatusCode.HitWall:
consoleView.Write(GetNewLocation(_relativePosition), '#');
break;
case RepairDroidStatusCode.Moved:
consoleView.Write(_relativePosition, '.');
Move();
consoleView.Write(_relativePosition, 'D');
break;
case RepairDroidStatusCode.MovedAndFoundOxygenSystem:
Move();
FoundOxygenSystem?.Invoke(this, _relativePosition);
_run = false;
break;
}
;
};
_repairDroid = repairDroid;
_commandInput = commandInput;
}