Add GameObject and its derived classes. Create main game loop.

gameobjects.py

@@ -0,0 +1,38 @@
+import pygame
+class GameObject:
+    x = 0
+    y = 0
+    def __init__(self, image_path, x=0, y=0):
+        self.image = pygame.image.load(image_path)
+        self.rect = self.image.get_rect(topleft=(x,y))
+        self.set_position(x, y)
+    def draw(self, surface):
+        surface.blit(self.image, self.rect)
+    def set_position(self, x, y): # TODO: FIX CENTERING
+        self.rect.x = x - self.image.get_width() / 2
+        self.rect.y = y - self.image.get_height() / 2
+        self.x = x - self.image.get_width() / 2
+        self.y = y - self.image.get_width() / 2
+    def move(self, dx, dy):
+        self.set_position(self.rect.x + dx, self.rect.y + dy)
+    def set_size(self, width, height):
+        self.image = pygame.transform.scale(self.image, (width,height))
+        self.rect = self.image.get_rect(topleft=(self.x,self.y))
+    def scale_by(self, scale):
+        self.image = pygame.transform.scale(self.image, (self.image.get_width() * scale, self.image.get_height() * scale))
+        self.rect = self.image.get_rect(topleft=(self.x,self.y))
+    
+    
+        
+class Horse(GameObject):
+    def __init__(self, image_path, x, y):
+        super().__init__(image_path, x, y)
+
+class Background(GameObject):
+    def __init__(self, image_path, x, y):
+        super().__init__(image_path, x, y)
+
+class Barrier(GameObject):
+    def __init__(self, image_path, x, y):
+        super().__init__(image_path, x, y)
+