added 3 surfaces with auto switching

surface_switching_test/surfaces/sf_2.py

@@ -0,0 +1,21 @@
+import pygame
+from surface_switching_test.surfaces.objects import text as surface_text
+
+class Surface(pygame.Surface):
+    def __init__(self, window_size):
+        super().__init__(window_size, pygame.SRCALPHA)
+        self.test = 0
+        self.running = True
+        self.next_surface = 'sf_3'
+        self.countdown = 100
+
+    def update(self):
+        self.fill((0, 255, 0))
+
+        text = surface_text.RegularText('Surface stopping and swtiching to {0} in: {1}'.format(self.next_surface,
+                                                                                          str(self.countdown)))
+        self.blit(text.surface, text.rect)
+
+        self.countdown -= 1
+        if self.countdown < 0:
+            self.running = False