Added example bot

5 files changed, 237 insertions, 0 deletions

diff --git a/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/Bot.java b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/Bot.java
new file mode 100644
index 0000000..217ffb5
--- /dev/null
+++ b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/Bot.java
@@ -0,0 +1,15 @@
+package nl.camilstaps.botleagues.bot;
+
+import nl.camilstaps.botleagues.game.*;
+
+public interface Bot {
+	
+	/**
+	 * Get the next move according to a state
+	 * 
+	 * @param the current state
+	 * @return the move to do
+	 */
+	public Move getMove(BotState state);
+	
+}
diff --git a/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotParser.java b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotParser.java
new file mode 100644
index 0000000..c1fab26
--- /dev/null
+++ b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotParser.java
@@ -0,0 +1,80 @@
+package nl.camilstaps.botleagues.bot;
+
+import java.util.Scanner;
+
+import nl.camilstaps.botleagues.game.Move;
+
+/**
+ * Example bot parser
+ * 
+ * @author Camil Staps <info@camilstaps.nl>
+ */
+public class BotParser {
+
+	/**
+	 * stdin scanner and bot object
+	 */
+	final Scanner scan;
+	final Bot bot;
+	
+	/**
+	 * Constructor 
+	 * 
+	 * @param bot
+	 */
+	public BotParser(Bot bot) {
+		this.bot = bot;
+		scan = new Scanner(System.in);
+	}
+	
+	/**
+	 * Run the bot
+	 */
+	public void run() {
+		// Hold the state of the bot
+		BotState state = new BotState();
+		
+		// Keep reading stdin
+		while (scan.hasNextLine()) {
+			
+			String line = scan.nextLine().trim();
+			if (line.length() == 0) { 
+				continue;
+			}
+			
+			// Split the line up in parts by whitespace
+			String[] parts = line.split("\\s+");
+			
+			// What to do?
+			if (parts[0].equals("Guess")) {					// Do we have to make a guess?
+				state.setState(BotState.STATE_GUESS);
+				Move move = bot.getMove(state);
+				System.out.println(move.toString());
+				System.out.flush();
+			} else if (parts[0].equals("Finish")) {			// Are we finished?
+				state.setState(BotState.STATE_FINISH);
+				if (parts[1].equals("win")) {				// What is the result?
+					state.setResult(BotState.RESULT_WIN);
+				} else if (parts[1].equals("tie")) {
+					state.setResult(BotState.RESULT_TIE);
+				} else if (parts[1].equals("loss")) {
+					state.setResult(BotState.RESULT_LOSS);
+				} else {
+					state.setResult(BotState.RESULT_NONE);
+				}
+				return;
+			} else {										// Unparseable input
+				unparseable(line);
+			}
+		}
+	}
+	
+	/**
+	 * Show error message on stderr for unparseable input
+	 * 
+	 * @param line
+	 */
+	public void unparseable(String line) {
+		System.err.println("Unable to parse line ``"+line+"''");
+	}
+}
diff --git a/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotStarter.java b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotStarter.java
new file mode 100644
index 0000000..a641400
--- /dev/null
+++ b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotStarter.java
@@ -0,0 +1,37 @@
+package nl.camilstaps.botleagues.bot;
+
+import nl.camilstaps.botleagues.game.Move;
+
+/**
+ * Example bot
+ * 
+ * @author Camil Staps <info@camilstaps.nl>
+ */
+public class BotStarter implements Bot {
+
+	/**
+	 * Keep track of the number of guess calls we received
+	 */
+	private int nr_calls = 0;
+
+	/**
+	 * Start up a parser
+	 * Command-line parameters are ignored
+	 * 
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		BotParser parser = new BotParser(new BotStarter());
+		parser.run();
+	}
+	
+	@Override
+	public Move getMove(BotState state) {
+		if (nr_calls++ % 2 == 0) {
+			return new Move(nr_calls * 2);
+		} else {
+			return new Move(nr_calls * nr_calls);
+		}
+	}
+
+}
diff --git a/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotState.java b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotState.java
new file mode 100644
index 0000000..440cef4
--- /dev/null
+++ b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/bot/BotState.java
@@ -0,0 +1,67 @@
+package nl.camilstaps.botleagues.bot;
+
+/**
+ * Current state of the game
+ * 
+ * @author camilstaps
+ */
+public class BotState {
+
+	/**
+	 * Several constants for the state of the game (at the start; we have to guess; finished)
+	 */
+	public static final int STATE_START = -1;
+	public static final int STATE_GUESS = 0;
+	public static final int STATE_FINISH = 1;
+	
+	/**
+	 * Several constants for the result of the game (none; win; tie; loss)
+	 */
+	public static final int RESULT_NONE = -1;
+	public static final int RESULT_WIN = 0;
+	public static final int RESULT_TIE = 1;
+	public static final int RESULT_LOSS = 2;
+	
+	/**
+	 * Private properties to hold the state and the result
+	 */
+	private int state = STATE_START;
+	private int result = RESULT_NONE;
+	
+	/**
+	 * Set the state
+	 * 
+	 * @param new_state
+	 */
+	public void setState(int new_state) {
+		state = new_state;
+	}
+	
+	/**
+	 * Get the state
+	 * 
+	 * @return the state
+	 */
+	public int getState() {
+		return state;
+	}
+	
+	/**
+	 * Set the result
+	 * 
+	 * @param new_result
+	 */
+	public void setResult(int new_result) {
+		result = new_result;
+	}
+	
+	/**
+	 * Get the result
+	 * 
+	 * @return the result
+	 */
+	public int getResult() {
+		return result;
+	}
+	
+}
diff --git a/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/game/Move.java b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/game/Move.java
new file mode 100644
index 0000000..b2e1db5
--- /dev/null
+++ b/backyard/java-bot/trunk/src/nl/camilstaps/botleagues/game/Move.java
@@ -0,0 +1,38 @@
+package nl.camilstaps.botleagues.game;
+
+/**
+ * Move in the guess-a-number game
+ * 
+ * @author Camil Staps <info@camilstaps.nl>
+ */
+public class Move {
+
+	/**
+	 * The number we guess
+	 */
+	private int number;
+	
+	/**
+	 * Constructor
+	 * 
+	 * @param nr
+	 */
+	public Move(int nr) {
+		number = nr;
+	}
+	
+	/**
+	 * Get the number we guessed
+	 * 
+	 * @return
+	 */
+	public int getNumber() {
+		return number;
+	}
+	
+	@Override
+	public String toString() {
+		return Integer.toString(number);
+	}
+	
+}