Fix the lights-out easter egg.

inventory/routes/index.py

@@ -13,11 +13,11 @@ def generate_solvable_matrix(level, seed_clicks=None):
     matrix = [[True for _ in range(size)] for _ in range(size)]
 
     def toggle(x, y):
-        for dx in [-1, 0, 1]:
-            for dy in [-1, 0, 1]:
-                nx, ny = x + dx, y + dy
-                if 0 <= nx < size and 0 <= ny < size:
-                    matrix[nx][ny] = not matrix[nx][ny]
+        directions = [(0, 0), (-1, 0), (1, 0), (0, -1), (0, 1)]  # self, N, S, W, E
+        for dx, dy in directions:
+            nx, ny = x + dx, y + dy
+            if 0 <= nx < size and 0 <= ny < size:
+                matrix[nx][ny] = not matrix[nx][ny]
 
     # Pick a number of random "clicks"
     num_clicks = seed_clicks if seed_clicks is not None else random.randint(size, size * 2)

inventory/templates/coffee.html

@@ -23,8 +23,10 @@
         checkbox.addEventListener('change', function() {
             const [x, y] = this.id.split('-').slice(1).map(Number);
             const neighbors = [
-                [x - 1, y], [x + 1, y], [x, y - 1], [x, y + 1],
-                [x - 1, y - 1], [x - 1, y + 1], [x + 1, y - 1], [x + 1, y + 1]
+                [x - 1, y],
+                [x + 1, y],
+                [x, y - 1],
+                [x, y + 1]
             ];
 
             neighbors.forEach(([nx, ny]) => {