private static string Render(Dictionary <Point, int> canvas)
{
var whitePoints = canvas.Where(x => x.Value == 1).Select(x => x.Key).ToList();
var topLeft = new Point(whitePoints.Min(x => x.X), whitePoints.Min(x => x.Y));
var bottomRight = new Point(whitePoints.Max(x => x.X), whitePoints.Max(x => x.Y));
var resultSb = new StringBuilder();
for (var x = topLeft.X; x <= bottomRight.X; x++)
{
for (var y = topLeft.Y; y <= bottomRight.Y; y++)
{
if (canvas.TryGetValue(new Point(x, y), out var color))
{
resultSb.Append(color == 0 ? ' ' : '#');
}
else
{
resultSb.Append(' ');
}
}
resultSb.AppendLine();
}
return(resultSb.ToString());
}
private async Task <int> Paint(SynchronousIntMachine intMachine, Dictionary <Point, int> canvas)
{
var paintedPositions = new HashSet <Point> ();
var directions = new [] { new Point(-1, 0), new Point(0, 1), new Point(1, 0), new Point(0, -1) };
var direction = 0;
var pos = new Point(0, 0);
while (intMachine.RunUntilBlockOrComplete() != SynchronousIntMachine.ReturnCode.Completed)
{
var color = canvas.GetOrAdd(pos, _ => 0);
intMachine.InputQueue.Enqueue(color);
intMachine.RunUntilBlockOrComplete();
canvas [pos] = (int)intMachine.OutputQueue.Dequeue();
paintedPositions.Add(pos);
intMachine.RunUntilBlockOrComplete();
var directionDelta = (int)intMachine.OutputQueue.Dequeue() == 0 ? -1 : 1;
direction = (direction + directionDelta + 4) % 4;
pos += directions [direction];
}
return(paintedPositions.Count);
}
public static async Task Run()
{
var input = await File.ReadAllTextAsync("inputs\\13.txt");
Dictionary <PointInt, tile_type> tiles = new Dictionary <PointInt, tile_type> ();
var intMachine = new SynchronousIntMachine(input);
while (intMachine.RunUntilBlockOrComplete() == ReturnCode.WrittenOutput)
{
while (intMachine.OutputQueue.Count < 3)
{
intMachine.RunUntilBlockOrComplete();
}
var x = (int)intMachine.OutputQueue.Dequeue();
var y = (int)intMachine.OutputQueue.Dequeue();
var tile = intMachine.OutputQueue.Dequeue();
tiles [new PointInt(x, y)] = (tile_type)tile;
}
var blocks = tiles.Where(e => e.Value == tile_type.Block).Count();
Console.WriteLine("Part 1: " + blocks.ToString());
intMachine = new SynchronousIntMachine(input);
intMachine.SetMemoryRegister(0, 2);
long score = 0;
var blockCount = blocks;
var ball = Classes.Point.Empty;
var paddle = Classes.Point.Empty;
ReturnCode returnCode;
while (blockCount > -1 && (returnCode = intMachine.RunUntilBlockOrComplete()) != ReturnCode.Completed)
{
switch (returnCode)
{
case ReturnCode.WaitingForInput:
if (blockCount == 0)
{
blockCount = -1; break;
}
var joystickInput = ball.X.CompareTo(paddle.X);
intMachine.InputQueue.Enqueue(joystickInput);
break;
case ReturnCode.WrittenOutput:
while (intMachine.OutputQueue.Count < 3)
{
intMachine.RunUntilBlockOrComplete();
}
var x = (int)intMachine.OutputQueue.Dequeue();
var y = (int)intMachine.OutputQueue.Dequeue();
var t = intMachine.OutputQueue.Dequeue();
if (x == -1)
{
score = t;
}
else
{
var tile = (tile_type)t;
if (tile != tile_type.Block && tiles [new PointInt(x, y)] == tile_type.Block)
{
blockCount--;
}
tiles [new PointInt(x, y)] = tile;
if (tile == tile_type.Ball)
{
ball = new Classes.Point(x, y);
}
else if (tile == tile_type.HorizPaddle)
{
paddle = new Classes.Point(x, y);
}
}
break;
}
}
Console.WriteLine("Part 2: " + score);
}
