RumbleBot movement, markLine, more Enemies

src/EnemyBot.java

@@ -9,13 +9,16 @@ public class EnemyBot extends Bot {
 
     @Override
     protected char nextMove(View view) {
+        int size = view.width;
         String data = view.data
                 .replace('^', '*')
                 .replace('<', '*')
                 .replace('>', '*')
                 .replace('v', '*');
 
-        if (data.contains("*") && random.nextFloat() < 0.8)
+        char[][] grid = dataToGrid(data, size);
+
+        if (data.contains("*") && isInLineOfSight(grid))
             return 'f';
 
         return switch (random.nextInt(10)) {
@@ -29,4 +32,21 @@ public class EnemyBot extends Bot {
     @Override
     protected void print(View view) {
     }
+
+    protected char[][] dataToGrid(String data, int size) {
+        char[][] grid = new char[size][size];
+        for (int i = 0; i < data.length(); i++) {
+            grid[i % size][i / size] = data.charAt(i);
+        }
+        return grid;
+    }
+
+    protected boolean isInLineOfSight(char[][] grid) {
+        int size = grid.length;
+        for (int y = size / 2; y > 0; y--) {
+            if (grid[size / 2][y] == '*')
+                return true;
+        }
+        return false;
+    }
 }

src/RumbleBot.java

@@ -1,18 +1,22 @@
 import java.util.LinkedList;
 import java.util.Queue;
+import java.util.Random;
 
 public class RumbleBot extends Bot {
     protected final static String obstacles = "~#X*";
     protected final static String targets = "v^<>";
-    protected boolean offByOne = true;
-    protected int currentStepCount = 0;
+
+    protected Random random = new Random();
     protected int steps = 0;
 
     public static void main(String[] args) {
         if(args.length == 0) {
             String[] dummyArgs = {"localhost", "63187"};
-            Bot dummy = new EnemyBot(dummyArgs);
-            new Thread(dummy).start();
+            new Thread(new EnemyBot(dummyArgs)).start();
+            new Thread(new EnemyBot(dummyArgs)).start();
+            new Thread(new EnemyBot(dummyArgs)).start();
+            new Thread(new EnemyBot(dummyArgs)).start();
+            new Thread(new EnemyBot(dummyArgs)).start();
         }
 
         Bot bot = new RumbleBot(args);
@@ -45,7 +49,10 @@ public class RumbleBot extends Bot {
     protected char[][] dataToGrid(String data, int size) {
         char[][] grid = new char[size][size];
         for (int i = 0; i < data.length(); i++) {
-            grid[i % size][i / size] = data.charAt(i);
+            char c = data.charAt(i);
+            if("ABCDEFGHIJKLMNOPQRSTUVWYZ".contains("" + c))
+                c = 'A';
+            grid[i % size][i / size] = c;
         }
         return grid;
     }
@@ -54,26 +61,34 @@ public class RumbleBot extends Bot {
         int size = grid.length;
         for (int x = 0; x < size; x++) {
             for (int y = 0; y < size; y++) {
+                int[][] dir = {{0, -1}, {0, 1}, {1, 0}, {-1, 0}};
+
                 switch (grid[x][y]) {
-                    case 'v' -> markLine(grid, x, y, 0, 1);
-                    case '^' -> markLine(grid, x, y, 0, -1);
-                    case '>' -> markLine(grid, x, y, 1, 0);
-                    case '<' -> markLine(grid, x, y, -1, 0);
+                    case '^' -> markLine(grid, x, y, dir[0], '*');
+                    case 'v' -> markLine(grid, x, y, dir[1], '*');
+                    case '>' -> markLine(grid, x, y, dir[2], '*');
+                    case '<' -> markLine(grid, x, y, dir[3], '*');
+                }
+
+                if(targets.contains("" + grid[x][y])) {
+                    for (int[] direction : dir) {
+                        markLine(grid, x, y, direction, 'o');
+                    }
                 }
             }
         }
     }
 
-    private void markLine(char[][] grid, int x, int y, int dx, int dy) {
+    private void markLine(char[][] grid, int x, int y, int[] dir, char c) {
         int size = grid.length;
-        x += dx;
-        y += dy;
+        x += dir[0];
+        y += dir[1];
         while (x >= 0 && x < size && y >= 0 && y < size && !obstacles.contains("" + grid[x][y])) {
             if (grid[x][y] == '.') {
-                grid[x][y] = '*';
+                grid[x][y] = c;
             }
-            x += dx;
-            y += dy;
+            x += dir[0];
+            y += dir[1];
         }
     }
 
@@ -91,12 +106,7 @@ public class RumbleBot extends Bot {
 
     protected char walkAround(char[][] grid) {
         if (steps == 0) {
-            currentStepCount = (currentStepCount + 1) % 10;
-            if (offByOne) {
-                currentStepCount++;
-            }
-            offByOne = !offByOne;
-            steps = currentStepCount;
+            steps = random.nextInt(20);
             return '>';
         } else {
             steps--;

src/SnakeBot.java

@@ -8,8 +8,8 @@ public class SnakeBot extends Bot {
     protected int steps = 0;
 
     public static void main(String[] args) {
-            Bot bot = new SnakeBot(args);
-            bot.run();
+        Bot bot = new SnakeBot(args);
+        bot.run();
     }
 
     protected SnakeBot(String[] args) {
@@ -72,10 +72,8 @@ public class SnakeBot extends Bot {
         int rightStars = 0;
         for (int x = 0; x < size / 2; x++) {
             for (int y = 0; y < size; y++) {
-                if (grid[x][y] == '*')
-                    leftStars++;
-                if (grid[size - x - 1][y] == '*')
-                    rightStars++;
+                if (grid[x][y] == '*') leftStars++;
+                if (grid[size - x - 1][y] == '*') rightStars++;
             }
         }