Adding Minesweeper code for new guide

Metro/Metro_RP2350_Minesweeper/code.py

@@ -0,0 +1,304 @@
+# SPDX-FileCopyrightText: 2025 Melissa LeBlanc-Williams for Adafruit Industries
+# SPDX-License-Identifier: MIT
+"""
+An implementation of minesweeper. The logic game where the player
+correctly identifies the locations of mines on a grid by clicking on squares
+and revealing the number of mines in adjacent squares.
+
+The player can also flag squares they suspect contain mines. The game ends when
+the player successfully reveals all squares without mines or clicks on a mine.
+"""
+import array
+import time
+from displayio import Group, OnDiskBitmap, TileGrid, Bitmap, Palette
+from adafruit_display_text.bitmap_label import Label
+from adafruit_display_text.text_box import TextBox
+from eventbutton import EventButton
+import supervisor
+import terminalio
+import usb.core
+from gamelogic import GameLogic, BLANK, INFO_BAR_HEIGHT, DIFFICULTIES
+from menu import Menu, SubMenu
+
+# pylint: disable=ungrouped-imports
+if hasattr(supervisor.runtime, "display") and supervisor.runtime.display is not None:
+    # use the built-in HSTX display for Metro RP2350
+    display = supervisor.runtime.display
+else:
+    # pylint: disable=ungrouped-imports
+    from displayio import release_displays
+    import picodvi
+    import board
+    import framebufferio
+
+    # initialize display
+    release_displays()
+
+    fb = picodvi.Framebuffer(
+        320,
+        240,
+        clk_dp=board.CKP,
+        clk_dn=board.CKN,
+        red_dp=board.D0P,
+        red_dn=board.D0N,
+        green_dp=board.D1P,
+        green_dn=board.D1N,
+        blue_dp=board.D2P,
+        blue_dn=board.D2N,
+        color_depth=16,
+    )
+    display = framebufferio.FramebufferDisplay(fb)
+
+game_logic = GameLogic(display) # pylint: disable=no-value-for-parameter
+
+# Load the spritesheet
+sprite_sheet = OnDiskBitmap("/bitmaps/game_sprites.bmp")
+
+# Main group will hold all the visual layers
+main_group = Group()
+display.root_group = main_group
+
+# Add Background to the Main Group
+background = Bitmap(display.width, display.height, 1)
+bg_color = Palette(1)
+bg_color[0] = 0xaaaaaa
+main_group.append(TileGrid(
+    background,
+    pixel_shader=bg_color
+))
+
+# Add Game group, which holds the game board, to the main group
+game_group = Group()
+main_group.append(game_group)
+
+# Add a group for the UI Elements
+ui_group = Group()
+main_group.append(ui_group)
+
+# Create the mouse graphics and add to the main group
+mouse_bmp = OnDiskBitmap("/bitmaps/mouse_cursor.bmp")
+mouse_bmp.pixel_shader.make_transparent(0)
+mouse_tg = TileGrid(mouse_bmp, pixel_shader=mouse_bmp.pixel_shader)
+mouse_tg.x = display.width // 2
+mouse_tg.y = display.height // 2
+main_group.append(mouse_tg)
+
+MENU_ITEM_HEIGHT = INFO_BAR_HEIGHT
+
+def create_game_board():
+    # Remove the old game board
+    if len(game_group) > 0:
+        game_group.pop()
+
+    x = display.width // 2 - (game_logic.grid_width * 16) // 2
+    y = ((display.height - INFO_BAR_HEIGHT) // 2 -
+         (game_logic.grid_height * 16) // 2 + INFO_BAR_HEIGHT)
+
+    # Create a new game board
+    game_board = TileGrid(
+        sprite_sheet,
+        pixel_shader=sprite_sheet.pixel_shader,
+        width=game_logic.grid_width,
+        height=game_logic.grid_height,
+        tile_height=16,
+        tile_width=16,
+        x=x,
+        y=y,
+        default_tile=BLANK,
+    )
+
+    game_group.append(game_board)
+    return game_board
+
+def update_ui():
+    # Update the UI elements with the current game state
+    mines_left_label.text = f"Mines: {game_logic.mines_left}"
+    elapsed_time_label.text = f"Time: {game_logic.elapsed_time}"
+
+# variable for the mouse USB device instance
+mouse = None
+
+# wait a second for USB devices to be ready
+time.sleep(1)
+
+# scan for connected USB devices
+for device in usb.core.find(find_all=True):
+    # print information about the found devices
+    print(f"{device.idVendor:04x}:{device.idProduct:04x}")
+    print(device.manufacturer, device.product)
+    print(device.serial_number)
+
+    # assume this device is the mouse
+    mouse = device
+
+    # detach from kernel driver if active
+    if mouse.is_kernel_driver_active(0):
+        mouse.detach_kernel_driver(0)
+
+    # set the mouse configuration so it can be used
+    mouse.set_configuration()
+
+buf = array.array("b", [0] * 4)
+waiting_for_release = False
+left_button = right_button = False
+mouse_coords = (0, 0)
+
+# Create the UI Elements (Ideally fit into 320x16 area)
+# Label for the Mines Left (Left of Center)
+mines_left_label = Label(
+    terminalio.FONT,
+    color=0x000000,
+    x=5,
+    y=0,
+)
+mines_left_label.anchor_point = (0, 0)
+mines_left_label.anchored_position = (5, 2)
+ui_group.append(mines_left_label)
+# Label for the Elapsed Time (Right of Center)
+elapsed_time_label = Label(
+    terminalio.FONT,
+    color=0x000000,
+    x=display.width - 50,
+    y=0,
+)
+elapsed_time_label.anchor_point = (1, 0)
+elapsed_time_label.anchored_position = (display.width - 5, 2)
+ui_group.append(elapsed_time_label)
+
+# Menu button to change difficulty
+difficulty_menu = SubMenu(
+    "Difficulty",
+    70,
+    80,
+    display.width // 2 - 70,
+    0
+)
+
+reset_menu = SubMenu(
+    "Reset",
+    50,
+    40,
+    display.width // 2 + 15,
+    0
+)
+
+message_dialog = Group()
+message_dialog.hidden = True
+
+def reset():
+    # Reset the game logic
+    game_logic.reset()
+
+    # Create a new game board and assign it into the game logic
+    game_logic.game_board = create_game_board()
+
+    message_dialog.hidden = True
+
+def set_difficulty(diff):
+    game_logic.difficulty = diff
+    reset()
+
+def hide_group(group):
+    group.hidden = True
+
+for i, difficulty in enumerate(DIFFICULTIES):
+    # Create a button for each difficulty
+    difficulty_menu.add_item((set_difficulty, i), difficulty['label'])
+
+reset_menu.add_item(reset, "OK")
+
+menu = Menu()
+menu.append(difficulty_menu)
+menu.append(reset_menu)
+ui_group.append(menu)
+
+reset()
+
+message_label = TextBox(
+    terminalio.FONT,
+    text="",
+    color=0x333333,
+    background_color=0xEEEEEE,
+    width=display.width // 4,
+    height=50,
+    align=TextBox.ALIGN_CENTER,
+    padding_top=5,
+)
+message_label.anchor_point = (0, 0)
+message_label.anchored_position = (
+    display.width // 2 - message_label.width // 2,
+    display.height // 2 - message_label.height // 2,
+)
+message_dialog.append(message_label)
+message_button = EventButton(
+    (hide_group, message_dialog),
+    label="OK",
+    width=40,
+    height=16,
+    x=display.width // 2 - 20,
+    y=display.height // 2 - message_label.height // 2 + 20,
+    style=EventButton.RECT,
+)
+message_dialog.append(message_button)
+ui_group.append(message_dialog)
+
+# Popup message for game over/win
+
+menus = (reset_menu, difficulty_menu)
+
+# main loop
+while True:
+    update_ui()
+    # attempt mouse read
+    try:
+        # try to read data from the mouse, small timeout so the code will move on
+        # quickly if there is no data
+        data_len = mouse.read(0x81, buf, timeout=10)
+        left_button = buf[0] & 0x01
+        right_button = buf[0] & 0x02
+
+        # if there was data, then update the mouse cursor on the display
+        # using min and max to keep it within the bounds of the display
+        mouse_tg.x = max(0, min(display.width - 1, mouse_tg.x + buf[1] // 2))
+        mouse_tg.y = max(0, min(display.height - 1, mouse_tg.y + buf[2] // 2))
+        mouse_coords = (mouse_tg.x, mouse_tg.y)
+
+        if waiting_for_release and not left_button and not right_button:
+            # If both buttons are released, we can process the next click
+            waiting_for_release = False
+
+    # timeout error is raised if no data was read within the allotted timeout
+    except usb.core.USBTimeoutError:
+        # no problem, just go on
+        pass
+    except AttributeError as exc:
+        raise RuntimeError("Mouse not found") from exc
+    if not message_dialog.hidden:
+        if message_button.handle_mouse(mouse_coords, left_button, waiting_for_release):
+            waiting_for_release = True
+        continue
+
+    if menu.handle_mouse(mouse_coords, left_button, waiting_for_release):
+        waiting_for_release = True
+    else:
+        # process gameboard click if no menu
+        ms_board = game_logic.game_board
+        if (ms_board.x <= mouse_tg.x <= ms_board.x + game_logic.grid_width * 16 and
+            ms_board.y <= mouse_tg.y <= ms_board.y + game_logic.grid_height * 16 and
+            not waiting_for_release):
+            coords = ((mouse_tg.x - ms_board.x) // 16, (mouse_tg.y - ms_board.y) // 16)
+            if right_button:
+                game_logic.square_flagged(coords)
+            elif left_button:
+                if not game_logic.square_clicked(coords):
+                    message_label.text = "Game Over"
+                    message_dialog.hidden = False
+            if left_button or right_button:
+                waiting_for_release = True
+        status = game_logic.check_for_win()
+        if status:
+            message_label.text = "You win!"
+            message_dialog.hidden = False
+            # Display message
+        if status is None:
+            continue

Metro/Metro_RP2350_Minesweeper/eventbutton.py

@@ -0,0 +1,41 @@
+# SPDX-FileCopyrightText: 2025 Melissa LeBlanc-Williams for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+from adafruit_button import Button
+
+class EventButton(Button):
+    """A button that can be used to trigger a callback when clicked.
+
+    :param callback: The callback function to call when the button is clicked.
+    A tuple can be passed with an argument that will be passed to the
+    callback function. The first element of the tuple should be the
+    callback function, and the remaining elements will be passed as
+    arguments to the callback function.
+    """
+    def __init__(self, callback, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.args = []
+        if isinstance(callback, tuple):
+            self.callback = callback[0]
+            self.args = callback[1:]
+        else:
+            self.callback = callback
+
+    def click(self):
+        """Call the function when the button is pressed."""
+        self.callback(*self.args)
+
+    def handle_mouse(self, point, clicked, waiting_for_release):
+        # pylint: disable=attribute-defined-outside-init
+        if waiting_for_release:
+            return False
+
+        # Handle mouse events for the button
+        if self.contains(point):
+            self.selected = True
+            if clicked:
+                self.click()
+                return True
+        else:
+            self.selected = False
+        return False