default res now 240x240

pocket_friends/__main__.py

@@ -1,29 +1,7 @@
 """
-Launch script for Pocket Friends.
+Wrapper that launches the launch script.
 """
-import os
-from pathlib import Path
-import pygame
-import sys
-from pocket_friends.game_files.game import main as game_main
-from pocket_friends.development.dev_menu import main as dev_menu_main
+import pocket_friends.launch as launch
 
 if __name__ == '__main__':
-    enable_dev = False
-
-    # enable dev mode if --dev argument is passed
-    if len(sys.argv) > 0:
-        for args in sys.argv:
-            if args == '--dev':
-                enable_dev = True
-            if args == '--delete-save':
-                save_dir = os.path.join(Path.home(), '.pocket_friends')
-                os.remove(save_dir + '/save.json')
-
-    if not enable_dev:
-        game_main()
-    else:
-        dev_menu_main()
-
-    pygame.quit()
-    sys.exit()
+    launch.main()

pocket_friends/development/FakeGPIO.py

@@ -6,8 +6,12 @@ the hardware can be run without the actual hardware.
 # Constants used by RPi.GPIO
 BOARD = 0
 IN = 0
+OUT = 1
 FALLING = 0
 
+HIGH = 1
+LOW = 0
+
 
 def setmode(new_mode):
     """
@@ -28,6 +32,16 @@ def setup(channel, mode, initial=None, pull_up_down=None):
     pass
 
 
+def output(channel, set):
+    """
+    Fake function to set a fake channel output.
+    :param channel:
+    :param set:
+    :return:
+    """
+    pass
+
+
 def add_event_detect(channel, edge_type, callback=None, bouncetime=0):
     """
     Fake function to add a non-existent event detect.
@@ -43,7 +57,7 @@ def event_detected(channel):
     """
     Fake function to detect an event. Always returns false.
     :param channel:
-    :return:
+    :return: False
     """
     return False
 

pocket_friends/development/dev_menu.py

@@ -29,6 +29,15 @@ def run_button_test():
     GPIOHandler.setup()
 
 
+def backlight_test():
+    """
+    Turns off the backlight for 5 seconds.
+    """
+    GPIOHandler.turn_off_backlight()
+    time.sleep(5)
+    GPIOHandler.turn_on_backlight()
+
+
 def clear_screen():
     """
     Clears the screen.
@@ -55,9 +64,9 @@ def quit_menu():
 
 def quit_with_error():
     """
-    Quits the menu with error code 3.
+    Quits the menu with error code 2.
     """
-    exit(3)
+    exit(2)
 
 
 def change_menu(new_menu):
@@ -96,6 +105,7 @@ def main():
     main_menu = Menu('Pocket Friends Dev Menu')
     main_menu.add_option(Menu.Option('Start Game', start_game))
     main_menu.add_option(Menu.Option('Button Test', run_button_test))
+    main_menu.add_option(Menu.Option('Backlight Test', backlight_test))
     main_menu.add_option(Menu.Option('Restart Dev Menu', quit_with_error))
     main_menu.add_option(Menu.Option('Shutdown Pi', change_menu, 'shutdown'))
     main_menu.add_option(Menu.Option('Restart Pi', change_menu, 'restart'))

pocket_friends/game_files/game.py

@@ -534,7 +534,7 @@ except ImportError:
     on_hardware = False
 
 
-def game():
+def game(screen_size):
     """
     Starts the game.
     """
@@ -543,10 +543,6 @@ def game():
     # Hide the cursor for the Pi display.
     pygame.mouse.set_visible(False)
 
-    # The game is normally rendered at 80 pixels and upscaled from there. If changing displays, change the
-    # screen_size to reflect what the resolution of the new display is.
-    screen_size = 320
-
     window = pygame.display.set_mode((screen_size, screen_size))
     surface = pygame.Surface((game_res, game_res))
 
@@ -974,11 +970,11 @@ def game():
                 draw()
 
 
-def main():
+def main(screen_size=240):
     """
     Calls the game() function to start the game.
     """
-    game()
+    game(screen_size)
 
     GPIOHandler.teardown()
     pygame.quit()

pocket_friends/hardware/gpio_handler.py

@@ -24,6 +24,9 @@ class Constants:
         'j_l': 13,  # Joystick left
         'j_r': 16  # Joystick right
     }
+    hardware = {
+        'backlight':  37
+    }
 
 
 class GPIOHandler:
@@ -54,6 +57,8 @@ class GPIOHandler:
         GPIO.add_event_detect(Constants.buttons.get('j_l'), GPIO.FALLING)
         GPIO.add_event_detect(Constants.buttons.get('j_r'), GPIO.FALLING)
 
+        GPIO.setup(Constants.hardware.get('backlight'), GPIO.OUT, initial=GPIO.HIGH)
+
     @staticmethod
     def teardown():
         """
@@ -69,3 +74,17 @@ class GPIOHandler:
         :return: True if the button is has been pressed, False otherwise
         """
         return GPIO.event_detected(button)
+
+    @staticmethod
+    def turn_on_backlight():
+        """
+        Turns on the TFT backlight.
+        """
+        GPIO.output(Constants.hardware.get('backlight'), GPIO.HIGH)
+
+    @staticmethod
+    def turn_off_backlight():
+        """
+        Turns off the TFT backlight.
+        """
+        GPIO.output(Constants.hardware.get('backlight'), GPIO.LOW)

pocket_friends/launch.py

@@ -0,0 +1,46 @@
+import os
+from pathlib import Path
+import argparse
+import pygame
+import sys
+from pocket_friends.game_files.game import main as game_main
+from pocket_friends.development.dev_menu import main as dev_main
+
+
+def main():
+    """
+    Launch script for Pocket Friends.
+    """
+
+    # Creates the parser object.
+    parser = argparse.ArgumentParser()
+
+    # Adds parser arguments.
+    parser.add_argument('-D', '--delete-save', action='store_true', help='Deletes the save file if it exists.')
+    parser.add_argument('-s', '--size', type=int, default=240, help='Sets the size of the window.')
+    parser.add_argument('--dev', action='store_true', help='Deletes the save file if it exists.')
+
+    # Parse the arguments given
+    args = parser.parse_args()
+
+    # If given the delete-save argument, delete the safe file
+    if args.delete_save:
+        save_dir = os.path.join(Path.home(), '.pocket_friends')
+        # Remove the file if it exists
+        try:
+            os.remove(save_dir + '/save.json')
+            print('Save file deleted.')
+        except FileNotFoundError:
+            print('Save file does not exist, cannot delete.')
+
+    # Set the screen size
+    screen_size = int(args.size)
+
+    if not args.dev:
+        game_main(screen_size)
+    else:
+        dev_main()
+
+    # Cleanup
+    pygame.quit()
+    sys.exit()