created the maze walls and collision detection

the hardest part was creating a maze with a solution. I realized I didn't know how to do that and had to google how to create a maze.
Once I had a maze generator, I was unsure of whether there was a solution to it. Figuring that out took some time. Then I changed the look to be more digestible. I chose a maze game because I thought it would be simple, but it didn't feel simple.

escape_the_maze.py

@@ -1,25 +1,88 @@
+import random
+
 from retro.game import Game
 from player import Player
+from wall import Wall
+
+
+def generate_maze_grid(width, height):
+    """
+    Generate a 'perfect' maze on a width x height grid.
+    1 = wall, 0 = passage.
+
+    Uses depth-first search on a grid of cells spaced 2 apart,
+    which gives a nice twisty maze like your example image.
+    """
+    grid = [[1 for _ in range(width)] for _ in range(height)]
+
+    for y in range(1, height - 1, 2):
+        for x in range(1, width - 1, 2):
+            grid[y][x] = 0 
+
+    visited = set()
+
+    def dfs(cx, cy):
+        visited.add((cx, cy))
+
+        directions = [(2, 0), (-2, 0), (0, 2), (0, -2)]
+        random.shuffle(directions)
+
+        for dx, dy in directions:
+            nx, ny = cx + dx, cy + dy
+            if 1 <= nx < width - 1 and 1 <= ny < height - 1 and (nx, ny) not in visited:
+                wall_x = cx + dx // 2
+                wall_y = cy + dy // 2
+                grid[wall_y][wall_x] = 0
+                dfs(nx, ny)
+
+    dfs(1, 1)
+
+    return grid
+
+
+def create_maze_walls(board_size):
+    width, height = board_size
+
+    grid = generate_maze_grid(width, height)
+
+    center_x = (width // 2) | 1
+    center_y = (height // 2) | 1
+    grid[center_y][center_x] = 0   
+    end_position = (center_x, center_y)
+
+    wall_positions = []
+    for y in range(height):
+        for x in range(width):
+            if grid[y][x] == 1:
+                wall_positions.append((x, y))
+
+    walls = [Wall(pos) for pos in wall_positions]
+    return walls, end_position
+
 
 def main():
     board_size = (100, 40)
 
     player = Player(board_size)
 
+    walls, end_position = create_maze_walls(board_size)
+    print("Exit (goal) will be around:", end_position)
+
     state = {
         "win": False,
     }
 
     game = Game(
-        agents=[player],
+        agents=[player] + walls,
         state=state,
         board_size=board_size,
-        debug=False,
+        debug=True,
         framerate=24,
         color="white_on_black",
     )
 
     game.play()
 
+
 if __name__ == "__main__":
     main()

player.py

@@ -5,7 +5,7 @@ class Player:
     """
 
     name = "player"
-    character = "🐧"   # Penguin icon
+    character = ">"   # 🐧Penguin icon
 
     def __init__(self, board_size):
         # Start near the top-left corner

wall.py

@@ -0,0 +1,8 @@
+class Wall:
+    """
+    A simple wall tile. It just sits on the board and blocks movement.
+    """
+    character = "█"   
+    def __init__(self, position):
+        # position is a tuple (x, y)
+        self.position = position