add window init function

Snake/src/window.py

@@ -0,0 +1,9 @@
+import pygame
+from pygame.locals import *
+
+def init_game():
+    pygame.init()
+    screen = pygame.display.set_mode((1280, 720), pygame.SCALED)
+    pygame.display.set_caption("Test Window")
+
+    return screen