Skip to content

Metro_RP2350_Minesweeper: Refactor for USB mouse library and new core USB errors #3118

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: main
Choose a base branch
from
Open

Metro_RP2350_Minesweeper: Refactor for USB mouse library and new core USB errors #3118

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
2f8e751
Refactor for USB mouse library and new core USB errors
RetiredWizard Sep 11, 2025
2b5764a
drop unneded imports
RetiredWizard Sep 11, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
142 changes: 54 additions & 88 deletions Metro/Metro_RP2350_Minesweeper/code.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,15 +9,13 @@
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
import adafruit_usb_host_descriptors
from eventbutton import EventButton
import supervisor
import terminalio
import usb.core
from adafruit_usb_host_mouse import find_and_init_boot_mouse
from gamelogic import GameLogic, BLANK, INFO_BAR_HEIGHT, DIFFICULTIES
from menu import Menu, SubMenu

Expand Down Expand Up @@ -117,62 +115,14 @@ def update_ui():
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)

good_devices = False
wait_time = time.monotonic() + 10 # wait up to 20 seconds for a good device to be found
while not good_devices and time.monotonic() < wait_time:
for device in usb.core.find(find_all=True):
if device.manufacturer is not None:
good_devices = True
break
# 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)

mouse_intfc,mouse_endpt = adafruit_usb_host_descriptors.find_boot_mouse_endpoint(device)
if (mouse_intfc is None or mouse_endpt is None):
continue # Not a mouse device

# assume this device is the mouse
mouse = device

# detach from kernel driver if active
if mouse.is_kernel_driver_active(mouse_intfc):
mouse.detach_kernel_driver(mouse_intfc)

# set the mouse configuration so it can be used
mouse.set_configuration()

# Verify mouse works by reading from it
buf = array.array("b", [0] * 4)
try:
# Try to read some data with a short timeout
data = mouse.read(mouse_endpt, buf, timeout=100)
print(f"Mouse test read successful: {data} bytes - {buf}")
break
except usb.core.USBTimeoutError:
# Timeout is normal if mouse isn't moving
print("Mouse connected but not sending data (normal)")
break
except Exception as e: # pylint: disable=broad-except
print(f"Mouse test read failed: {e}")
# Continue to try next device or retry
mouse = None

mouse = find_and_init_boot_mouse()
if mouse is None:
raise RuntimeError("No mouse found. Please connect a USB mouse.")

buf = array.array("b", [0] * 4)
waiting_for_release = False
left_button = right_button = False
mouse_coords = (0, 0)
mouse_coords = (display.width // 2, display.height // 2)

# Create the UI Elements (Ideally fit into 320x16 area)
# Label for the Mines Left (Left of Center)
Expand Down Expand Up @@ -279,45 +229,61 @@ def hide_group(group):

menus = (reset_menu, difficulty_menu)

# Mouse state
last_left_button_state = 0
last_right_button_state = 0
left_button_pressed = False
right_button_pressed = False

# Mouse resolution/sensitivity
sensitivity = 4
mouse.x = mouse_coords[0] * sensitivity
mouse.y = mouse_coords[1] * sensitivity

# Change the mouse resolution so it's not too sensitive
mouse.display_size = (display.width*sensitivity, display.height*sensitivity)

# 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
while True:
try:
# read data from the mouse endpoint
data_len = mouse.read(mouse_endpt, buf, timeout=10)
if data_len > 0:
break
except usb.core.USBTimeoutError:
# if we get a timeout error, it means there is no data available
pass
except usb.core.USBError as exc:
# if we get a USBError, We may be getting no endpoint msgs which can be waited out
pass

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
buttons = mouse.update()

# Extract button states
if buttons is None:
left_button = 0
right_button = 0
else:
print(buttons)
left_button = 1 if 'left' in buttons else 0
right_button = 1 if 'right' in buttons else 0

# Detect button presses
if left_button == 1 and last_left_button_state == 0:
left_button_pressed = True
elif left_button == 0 and last_left_button_state == 1:
left_button_pressed = False

if right_button == 1 and last_right_button_state == 0:
right_button_pressed = True
elif right_button == 0 and last_right_button_state == 1:
right_button_pressed = False

# Update button states
last_left_button_state = left_button
last_right_button_state = right_button

# Update position
# Ensure position stays within bounds
mouse_tg.x = max(0, min(display.width - 1, mouse.x // sensitivity))
mouse_tg.y = max(0, min(display.height - 1, mouse.y // sensitivity))

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

if not message_dialog.hidden:
if message_button.handle_mouse(mouse_coords, left_button, waiting_for_release):
waiting_for_release = True
Expand Down