2019/day23.py

@@ -1,78 +0,0 @@
-from queue import Empty, SimpleQueue
-from threading import Thread
-import time
-
-from intcode import Intcode
-
-
-def main():
-    codes = Intcode.parse_file("day23.txt")
-    network = Network(50, codes)
-
-    # Part 1
-    for nic in network.nics:
-        thread = Thread(target=lambda: nic.run(), name=f"NIC {nic.address}")
-        thread.start()
-    
-    # Part 2
-    last_nat_y = None
-    while True:
-        time.sleep(0.1)
-        for nic in network.nics:
-            if not nic.inq.empty:
-                break
-        else:
-            if not network.last_nat_packet:
-                continue
-            x, y = network.last_nat_packet
-            if y == last_nat_y:
-                exit(f"Sending another {y} from NAT.")
-            last_nat_y = y
-            print(f"Network is idle, sending NAT packet to 0.")
-            network.nics[0].inq.put(x)
-            network.nics[0].inq.put(y)
-
-
-class Network:
-
-    def __init__(self, size, codes):
-        self.nics = [NIC(address, self, codes) for address in range(size)]
-        self.last_nat_packet = None
-
-    def route(self, sender, dest, x, y):
-        if dest == 255:
-            print(f"NAT: {x, y}.")
-            self.last_nat_packet = (x, y)
-            return
-        print(f"Send {x, y} from {sender} to {dest}")
-        self.nics[dest].inq.put(x)
-        self.nics[dest].inq.put(y)
-
-
-class NIC(Intcode):
-
-    def __init__(self, address, network, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self.address = address
-        self.network = network
-        self.inq = SimpleQueue()
-        self.inq.put(address)
-        self.outq = []
-
-    def input_data(self):
-        try:
-            data = self.inq.get(timeout=0.1)
-        except Empty:
-            data = -1
-        return data
-
-    def output_data(self, data):
-        self.outq.append(data)
-        if len(self.outq) == 3:
-            self.network.route(self.address, *self.outq)
-            self.outq = []
-            return
-
-
-if __name__ == "__main__":
-    main()