Add horse manual vertical movement functionality using up() and down() functions. Add barrier movement.

gameobjects.py

@@ -9,10 +9,10 @@ class GameObject:
     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
+        self.rect.x = x
+        self.rect.y = y
+        self.x = x
+        self.y = y
     def move(self, dx, dy):
         self.set_position(self.rect.x + dx, self.rect.y + dy)
     def set_size(self, width, height):
@@ -21,12 +21,39 @@ class GameObject:
     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))
+    def get_position(self):
+        return (self.x, self.y)
     
     
         
 class Horse(GameObject):
+    default_vacceleration = 1
+    vspeed = 0
+    vacceleration = 0
     def __init__(self, image_path, x, y):
+        self.vspeed = 0
+        self.vacceleration = 0
         super().__init__(image_path, x, y)
+    def apply_vspeed(self):
+        pos = self.get_position()
+        self.set_position(pos[0], pos[1] + self.vspeed)
+    def apply_vacceleration(self):
+        self.vspeed += self.vacceleration
+    def set_vspeed(self, speed):
+        self.vspeed = speed
+    def add_vspeed(self, delta):
+        self.vspeed += delta
+    def set_vacceleration(self, vacceleration):
+        self.vacceleration = vacceleration
+    def up(self):
+        self.set_vacceleration(-self.default_vacceleration)
+    def down(self):
+        self.set_vacceleration(self.default_vacceleration)
+    def stay(self):
+        self.set_vacceleration(0)
+
+
+
 
 class Background(GameObject):
     def __init__(self, image_path, x, y):

main.py

@@ -9,26 +9,44 @@ screen = pygame.display.set_mode((WIDTH, HEIGHT))
 pygame.display.set_caption("NIC_Project")
 
 WHITE = (255, 255, 255)
-RED = (255, 0, 0)
 
-
-grass = Background("images/grass.jpg", WIDTH/2, HEIGHT/2)
+grass = Background("images/grass.jpg", 0, 0)
 horse1 = Horse("images/horse.png", 50, 50)
 barrier1 = Barrier("images/barrier.png", 400, 300)
 
-horse1.set_size(75, 75)
+BARRIER_SPEED = 1
 
+horse1.set_size(75, 75)
 grass.set_size(WIDTH, HEIGHT)
 
 gameobjects = [grass, horse1, barrier1]
+horses = [horse1]
+barriers = [barrier1]
 while True:
     for event in pygame.event.get():
         if event.type == pygame.QUIT:
             pygame.quit()
             sys.exit()
+
+    keys = pygame.key.get_pressed()
+    
+    for horse in horses:
+        if keys[pygame.K_UP]:    
+            horse.up()           
+        elif keys[pygame.K_DOWN]:
+            horse.down()         
+        else:
+            horse.stay()          
+
+        horse.apply_vacceleration()
+        horse.apply_vspeed()         
+        horse.draw(screen)           
+
+    for barrier in barriers:
+        barrier.move(-BARRIER_SPEED, 0)
+
     for object in gameobjects:
         object.draw(screen)
+
     pygame.display.flip()
-    
     pygame.time.Clock().tick(60)
-