first bots
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17
src/AutomaticBot.java
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17
src/AutomaticBot.java
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public class AutomaticBot extends Bot {
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public static void main(String[] args) {
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Bot bot = new AutomaticBot(args);
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bot.run();
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}
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protected AutomaticBot(String[] args) {
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super(args);
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}
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@Override
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protected char nextMove(View view) throws Exception {
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System.out.println("fagh");
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return '^';
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}
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}
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85
src/Bot.java
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85
src/Bot.java
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.net.Socket;
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import java.net.InetSocketAddress;
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public abstract class Bot {
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// Ein Bot ist ein Programm, das sich mit einem Server verbindet und
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// mit diesem kommuniziert. Der Server sendet dem Bot eine Zeichenkette,
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// die das Spielfeld repräsentiert. Der Bot sendet dem Server ein Zeichen,
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// das die nächste Bewegung des Bots repräsentiert.
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private final String host; // Hostname oder IP-Adresse des Servers
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private final int port; // Port des Servers
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protected Bot(String[] args) {
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host = args.length > 0 ? args[0] : "localhost";
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port = args.length > 1 ? Integer.parseInt(args[1]) : 63187;
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}
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// Diese Methode stellt die Verbindung zum Server her und startet die
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// Kommunikation mit dem Server. Die Methode wird von der main-Methode
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// aufgerufen.
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protected void run() {
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try (Socket socket = new Socket()) {
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socket.connect(new InetSocketAddress(host, port));
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OutputStream out = socket.getOutputStream();
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BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
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View view = new View();
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while (true) {
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view.read(in);
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view.print();
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try {
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char ch = nextMove(view);
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out.write(ch);
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}
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catch (Exception e) { break; }
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}
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socket.close();
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} catch (IOException e) {
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System.err.println("Error: " + e.getMessage());
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}
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}
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// Diese Methode ermittelt den nächsten Zug des Bots. Sie wird von der
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// run-Methode aufgerufen, nachdem der Server das Spielfeld gesendet hat.
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// Subklassen müssen diese Methode implementieren.
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abstract protected char nextMove(View view) throws Exception;
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// Diese Klasse repräsentiert das Spielfeld. Sie wird von der run-Methode
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// verwendet, um das Spielfeld zu lesen und auszugeben.
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// Subklassen können diese Klasse verwenden, um das Spielfeld zu analysieren.
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public static class View {
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protected String data;
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protected int width;
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// Diese Methode liest das Spielfeld vom Server.
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private void read(BufferedReader in) throws IOException {
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StringBuilder sb = new StringBuilder();
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data = in.readLine();
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if (data == null) {
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return;
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}
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sb.append(data);
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width = data.length();
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for (int i = 1; i < width; ++i) {
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sb.append(in.readLine());
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}
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data = sb.toString();
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}
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// Diese Methode gibt das Spielfeld aus.
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protected void print() {
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if (data == null || width < 1) {
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return;
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}
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for (int i = 0, len = data.length(); i < len; i += width) {
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System.out.println(data.substring(i, i + width));
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}
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}
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}
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}
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38
src/EscapeBot.java
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38
src/EscapeBot.java
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public class EscapeBot extends Bot {
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boolean foundShip = false;
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boolean offByOne = true;
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int currentStepCount = 0;
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int steps = 0;
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public static void main(String[] args) {
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Bot bot = new EscapeBot(args);
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bot.run();
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}
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protected EscapeBot(String[] args) {
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super(args);
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}
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@Override
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protected char nextMove(View view) throws Exception {
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if (view.data.contains("o")) {
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int index = view.data.indexOf('o');
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if(index > view.width * 2) {
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return '^';
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}
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}
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if (steps == 0) {
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currentStepCount += 1;
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if(offByOne) {
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currentStepCount += 1;
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}
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offByOne = !offByOne;
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steps = currentStepCount;
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return '>';
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} else {
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steps -= 1;
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return '^';
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}
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}
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}
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31
src/ManualBot.java
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31
src/ManualBot.java
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import net.bytebuddy.implementation.bytecode.Throw;
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import java.util.Scanner;
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public class ManualBot extends Bot {
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public static void main(String[] args) {
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Bot bot = new ManualBot(args);
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bot.run();
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}
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protected ManualBot(String[] args) {
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super(args);
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}
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@Override
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protected char nextMove(View view) throws Exception {
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Scanner scanner = new Scanner(System.in);
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String input = scanner.nextLine();
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if(input.equals("q"))
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throw new RuntimeException("Quit");
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return switch (input) {
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case "w" -> '^';
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case "a" -> '<';
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case "s" -> 'V';
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case "d" -> '>';
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default -> 'E';
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};
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}
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}
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