Fixed BG sprite glitch. Minor fixes

Background.py

@@ -0,0 +1,38 @@
+"""
+Background entity class
+"""
+
+
+import pygame
+import os
+
+from BackgroundLayer import BackgroundLayer
+
+
+class Background():
+    imgDir = os.path.join(os.path.dirname(__file__), 'data')
+    backgroundImage = pygame.image.load(os.path.join(imgDir, 'background.png'))#.convert()
+    backgroundImages = (
+        pygame.transform.scale(backgroundImage.subsurface((0, 0, 800, 150)), (3200, 600)),
+        pygame.transform.scale(backgroundImage.subsurface((0, 150, 800, 150)), (3200, 600)),
+    )
+    for image in backgroundImages:
+        image.set_colorkey((255,0,255))
+
+    def __init__(self, mainGameClass):
+        pygame.sprite.Sprite.__init__(self)
+
+        self.layers = (
+            BackgroundLayer(Background.backgroundImages[0], mainGameClass, 0.5),
+            BackgroundLayer(Background.backgroundImages[1], mainGameClass, 1),
+        )
+
+
+    def update(self):
+        for layer in self.layers:
+            layer.update()
+
+
+    def draw(self, surface):
+        for layer in self.layers:
+            layer.draw(surface)