added error screen

pocket_friends/game_files/game.py

@@ -7,7 +7,8 @@ import importlib
 valid_surfaces = [
     'title',
     'egg_select',
-    'selection_info'
+    'selection_info',
+    'error_screen'
 ]
 surface_modules = {}
 
@@ -65,7 +66,7 @@ def game():
             next_surface = surface.next_surface
             additional_args = surface.additional_args
             if next_surface not in valid_surfaces:
-                raise Exception('Given surface is not listed in valid surfaces!')
+                next_surface = 'error_screen'
             surface = surface_modules.get(next_surface).Surface((game_res, game_res), resources_dir,
                                                                 game_fps, **additional_args)
             print(surface.name)

pocket_friends/game_files/surfaces/error_screen.py

@@ -0,0 +1,41 @@
+import pygame
+
+from pocket_friends.game_files.io import gpio_handler
+from pocket_friends.game_files.io.input_handler import InputHandler
+
+
+class Surface(pygame.Surface):
+    def __init__(self, window_size, resources_dir, game_fps, **kwargs):
+        super().__init__(window_size, pygame.SRCALPHA)
+        self.name = 'error_screen'
+        self.running = True
+        self.next_surface = 'title'
+        self.clock = pygame.time.Clock()
+        self.input_handler = InputHandler(self.clock)
+        self.additional_args = {}
+
+        self.bg = pygame.image.load(resources_dir + '/images/bg.png').convert_alpha()
+        self.title = pygame.image.load(resources_dir + '/images/debug/invalid.png').convert_alpha()
+        self.frames = 1
+        self.game_fps = game_fps
+        self.delay = 1
+        self.font = pygame.font.Font(resources_dir + '/fonts/5Pts5.ttf', 10)
+
+    def update(self):
+        self.clock.tick(self.game_fps)
+
+        self.blit(self.bg, (0, 0))
+        self.blit(self.title, (0, -4))
+        text = self.font.render('Frames: {0}'.format(self.frames), False, (64, 64, 64))
+        self.blit(text, (3, 68))
+
+        self.frames += 1
+        self.frames %= self.game_fps
+
+        self.input_handler.update()
+
+        for event in pygame.event.get():
+            if event.type == pygame.KEYDOWN:
+                if event.key == gpio_handler.BUTTONS.get('b'):
+                    self.running = False
+                    print('stop')

pocket_friends/game_files/surfaces/selection_info.py

@@ -63,7 +63,9 @@ class Surface(pygame.Surface):
                     # Scroll up on the info screen.
                     self.info_text.scroll_up()
                 if event.key == gpio_handler.BUTTONS.get('a'):
-                    pass
+                    self.running = False
+                    self.additional_args = {'selected_color': self.selected_egg}
+                    self.next_surface = 'playground'
                 if event.key == gpio_handler.BUTTONS.get('b'):
                     self.running = False
                     self.additional_args = {'selected_color': self.selected_egg}