added a functioning version of rumbleBot

src/RumbleBot.java

+import java.util.Random;
+
 /*
 * RumbleBot.
 * Der Rover ist auch mit einem Geschütz ausgestattet, dass nur in Fahrrichtung feuern kann.
 */
 public class RumbleBot extends Bot{
     private String moves = "";
+    private int spiralFactor = 1;
+    private char spiralDirection = '>';
+    private boolean goesForward = true;
+    private boolean frontIsBlocked, leftIsBlocked, rightIsBlocked;
+
     public static void main(String[] args) {
         Bot rumbleBot = new RumbleBot(args);
         rumbleBot.run();
         super(args);
     }
 
-    //@TODO: add nextMove() logic
     protected char nextMove(View view){
-        return walk();
+        char nextMove = checkForEnemy(view) ? takeAimAndShoot(view) : walkByColumns(view);
+
+        checkBarriers(view);
+
+        nextMove = checkMove(nextMove);
+
+        return nextMove;
+    }
+
+    private char takeAimAndShoot(View view) {
+        resetMovesSequence();
+
+        int[] frontIndexes = getFrontIndexes(view);
+        int[] leftIndexes = getLeftIndexes(view);
+        int[] rightIndexes = getRightIndexes(view);
+
+        char[] enemies = {'^', '<', '>', 'v'};
+
+        for (int index : frontIndexes) {
+            for (char enemy : enemies) {
+                if (view.data.charAt(index) == enemy) return 'f';
+            }
+        }
+
+        for (int index : leftIndexes) {
+            for (char enemy : enemies) {
+                if (view.data.charAt(index) == enemy) return '<';
+            }
+        }
+
+        for (int index : rightIndexes) {
+            for (char enemy : enemies) {
+                if (view.data.charAt(index) == enemy) return '>';
+            }
+        }
+
+        return '^';
+    }
+
+    private int[] getLeftIndexes(View view) {
+        int center = view.width / 2;
+        int[] leftIndexes = new int[center];
+        int index = 0;
+
+        for (int col = 0; col < center; col++) {
+            leftIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
+        }
+
+        return leftIndexes;
+    }
+
+    private int[] getRightIndexes(View view) {
+        int center = view.width / 2;
+        int[] rightIndexes = new int[center];
+        int index = 0;
+
+        for (int col = center + 1; col < view.width; col++) {
+            rightIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
+        }
+
+        return rightIndexes;
+    }
+
+    private int[] getFrontIndexes(View view) {
+        int center = view.width / 2;
+        int[] frontIndexes = new int[center];
+        int index = 0;
+
+        for (int row = 0; row < center; row++) {
+            frontIndexes[index++] = getCharIndexFromCoordinates(view.width, center, row);
+        }
+
+        return frontIndexes;
+    }
+
+    private int getCharIndexFromCoordinates(int width, int x, int y) {
+        return width * y + x;
+    }
+
+    private void resetMovesSequence() {
+        moves = "";
+        spiralFactor = 1;
+        spiralDirection = (spiralDirection == '>') ? '<' : '>';
+        goesForward = true;
+    }
+
+
+    private boolean checkForEnemy(View view) {
+        char[] enemies = {'^', '<', '>', 'v'};
+
+        boolean enemyDetected = false;
+
+        for (char enemy : enemies) {
+            if (view.data.contains(Character.toString(enemy))) {
+                enemyDetected = true;
+                System.out.println("There is an enemy!");
+                break;
+            }
+        }
+        return enemyDetected;
     }
 
-    //@TODO: add walk() logic
-    private char walk() {
-        if(moves.isEmpty()){
-            moves += ' ';
+    private void checkBarriers(View view) {
+        int centerCoordinates = view.width / 2;
+        int centerIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates);
+
+        int frontIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates - 1);
+        int leftIndex = centerIndex - 1;
+        int rightIndex = centerIndex + 1;
+
+        char[] obstacles = {'#', '~', 'X'};
+
+        frontIsBlocked = containsChar(obstacles, view.data.charAt(frontIndex));
+        leftIsBlocked = containsChar(obstacles, view.data.charAt(leftIndex));
+        rightIsBlocked = containsChar(obstacles, view.data.charAt(rightIndex));
+
+    }
+
+    public boolean containsChar(char[] array, char target) {
+        for (char c : array) {
+            if (c == target) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private char checkMove(char move) {
+        if (frontIsBlocked) {
+            resetMovesSequence();
+            if (leftIsBlocked) move = '>';
+            else if (rightIsBlocked) move = '<';
+        }
+        return move;
+    }
+
+    private char walkBySpiral(View view) {
+        if (moves.isEmpty()) {
+            spiralFactor++;
+            moves += "^".repeat(view.width * spiralFactor) + spiralDirection + "^".repeat(view.width * spiralFactor) + spiralDirection;
+        }
+        char nextMove = moves.charAt(0);
+        moves = moves.substring(1);
+        return nextMove;
+    }
+
+    private char walkByColumns(View view) {
+        if (moves.isEmpty()) {
+            int min = 10;
+            int max = 100;
+
+            Random random = new Random();
+            int steps = random.nextInt((max - min) + 1) + min;
+            //int steps = 32 - view.width;
+
+            moves = "^".repeat(steps);
+            moves += (goesForward ? ">" + "^".repeat(view.width) + ">" : "<" + "^".repeat(view.width) + "<");
+            goesForward = !goesForward;
         }
         char nextMove = moves.charAt(0);
         moves = moves.substring(1);

src/RumbleBotTest1.java

-/*
- * RumbleBot.
- * Der Rover ist auch mit einem Geschütz ausgestattet, dass nur in Fahrrichtung feuern kann.
- * Der Feuerbefehl ist „f“. Die Reichweite des Geschützes entspricht der Scanreichweite.
- * Wälder, Felsen und Wasser blockieren Schüsse.
- * Der Rover ist beim ersten Treffer zerstört. Wer überlebt am längsten?
- * docker run --rm -p 63187:63187 mediaeng/bots rumble
- */
-
-public class RumbleBotTest1 extends Bot {
-
-    private char currentDirection = '^'; // Start-Richtung des Bots
-
-    protected RumbleBotTest1(String[] args) {
-        super(args);
-    }
-
-    public static void main(String[] args) {
-
-        Bot rumbleBot = new RumbleBot(args);
-        rumbleBot.run();
-        System.out.println("hello");
-    }
-
-    @Override
-    protected char nextMove(View view) {
-        // Scanne das Spielfeld nach Gegnern in Fahrtrichtung
-        if (isEnemyInSight(view)) {
-            return 'f'; // Feuere, wenn ein Gegner in Reichweite ist
-        }
-
-        // Wenn kein Gegner in Sicht, wähle eine Bewegung
-        return chooseMove(view);
-    }
-
-    private boolean isEnemyInSight(View view) {
-        // Prüfe, ob ein Gegner in der aktuellen Fahrtrichtung ist
-        // Annahme: Gegner sind als ^, <, >, v gekennzeichnet
-        String enemySymbols = "^<>v";
-        return view.data.contains(String.valueOf(currentDirection)) && enemySymbols.contains(String.valueOf(currentDirection));
-    }
-
-    private char chooseMove(View view) {
-        // Wähle eine sichere Bewegung, vermeide Hindernisse und versuche, Gegner zu finden
-        // Einfache Implementierung: Wechsle die Richtung bei jedem Zug
-        currentDirection = getNextDirection(currentDirection);
-        return currentDirection;
-    }
-
-    private char getNextDirection(char currentDirection) {
-        switch (currentDirection) {
-            case '^':
-                return '>';
-            case '>':
-                return 'v';
-            case 'v':
-                return '<';
-            case '<':
-                return '^';
-            default:
-                return '^'; // Standardrichtung, falls etwas schiefgeht
-        }
-    }
-}