public static void Main(string[] args)
{
var prog = IntProgram.ParseFrom("input.txt");
var comp = new Computer(prog, input: new long[0]);
var camera = Camera.Process(comp.Run());
Console.WriteLine(camera);
var sum = camera.DetectIntersections().Select(p => p.x * p.y).Sum();
Console.WriteLine($"Part I: {sum}");
Console.ReadLine();
Console.Clear();
while (true)
{
var logic = File.ReadAllText("movementlogic.ascii").Select(c => (long)c).ToArray();
prog[0] = 2;
comp = new Computer(prog, input: logic);
foreach (char c in comp.Run())
{
Console.Write(c);
}
Console.WriteLine("DONE! Press enter to retry");
Console.ReadLine();
}
}
static void Main(string[] args)
{
var prog = IntProgram.ParseFrom("input.txt");
//Print(prog);
Part2(prog);
}
static void Main(string[] args)
{
var prog = IntProgram.ParseFrom("input.txt");
var comp = new Computer(prog, input: Enumerable.Empty <long>());
var output = comp.Run().ToList();
var tiles = new List <(long x, long y, long t)>(output.Count / 3);
for (var i = 0; i < output.Count; i += 3)
{
tiles.Add((output[i], output[i + 1], output[i + 2]));
}
Console.WriteLine();
Console.WriteLine($"Part 1: {tiles.Count(c => c.t == 2)}");
Console.WriteLine("Press ENTER to start Part II");
Console.ReadLine();
var screen = Screen.Create();
long ballX = 0, paddleX = 0;
prog[0] = 2; // set it to 2 to play for free
comp = new Computer(prog, input: Joystick());
var dsp = new long[3];
long cnt = 0;
foreach (var o in comp.Run())
{
dsp[cnt % 3] = o;
cnt++;
if (cnt % 3 == 0)
{
screen.PutChar(dsp[0], dsp[1], dsp[2]);
if (dsp[2] == 4)
{
ballX = dsp[0];
}
if (dsp[2] == 3)
{
paddleX = dsp[0];
}
}
}
IEnumerable <long> Joystick()
{
while (true)
{
Thread.Sleep(25);
if (ballX > paddleX)
{
yield return(1);
}
if (ballX == paddleX)
{
yield return(0);
}
if (ballX < paddleX)
{
yield return(-1);
}
}
}
}
static void Main(string[] args)
{
// Console.WriteLine("Ticks;From;To;X;Y");
var program = IntProgram.ParseFrom("input.txt");
var sw = Stopwatch.StartNew();
var computers = new Computer[Size];
var inputs = new Queue <long> [Size];
for (int i = 0; i < Size; i++)
{
inputs[i] = new Queue <long>();
inputs[i].Enqueue(i);
computers[i] = new Computer(program, NetworkInput(i));
}
var outputs = Interleave(computers.Select(c => c.Walk()));
var result = Route(outputs, part1: true);
Console.WriteLine($"Part I: {result} in {sw.ElapsedMilliseconds}ms");
sw.Restart();
computers = new Computer[Size];
inputs = new Queue <long> [Size];
for (int i = 0; i < Size; i++)
{
inputs[i] = new Queue <long>();
inputs[i].Enqueue(i);
computers[i] = new Computer(program, NetworkInput(i));
}
outputs = Interleave(computers.Select(c => c.Walk()));
result = Route(outputs, part1: false);
Console.WriteLine($"Part II: {result} in {sw.ElapsedMilliseconds}ms");
IEnumerable <long> NetworkInput(int idx)
{
var input = inputs[idx];
while (true)
{
if (input.Count == 0)
{
yield return(-1);
}
else
{
long val = input.Dequeue();
yield return(val);
}
}
}
long Route(IEnumerable <(int comp, long?output, long ticks)> outputs, bool part1)
{
var packets = new Queue <long> [Size];
(long X, long Y)memory = (0L, 0L);
(long X, long Y)lastSend = (-1L, -1L);
const long idleTimeout = 1000;
long timestamp = 0; // ticks of the last routed pocket
for (int i = 0; i < Size; i++)
{
packets[i] = new Queue <long>();
}
foreach ((int comp, long?output, long ticks) in outputs)
{
if (part1 && !output.HasValue)
{
continue;
}
if (!part1 && ticks > timestamp + idleTimeout && packets.All(IsEmpty) && inputs.All(IsEmpty))
{
if (memory.Y == lastSend.Y)
{
return(memory.Y);
}
var input = inputs[0];
input.Enqueue(memory.X);
input.Enqueue(memory.Y);
lastSend = memory;
timestamp = ticks;
}
if (!output.HasValue)
{
continue;
}
var packet = packets[comp];
packet.Enqueue(output.Value);
if (packet.Count == 3)
{
int adr = (int)packet.Dequeue();
long x = packet.Dequeue();
long y = packet.Dequeue();
//Console.WriteLine($"{ticks};{comp};{adr};{x};{y}");
if (adr == 255)
{
if (part1)
{
return(y);
}
memory = (x, y);
}
else
{
var input = inputs[adr];
input.Enqueue(x);
input.Enqueue(y);
}
timestamp = ticks;
}
}
return(-1); // all computers ended without sending anything to 255
}
bool IsEmpty(Queue <long> q) => q.Count == 0;
}