Added animations class

Editet readme.md
Some changes on mainfile

GameObject.py

@@ -42,11 +42,12 @@ class Player(GameObject):
     def __init__(self, name, screen, pos_x, pos_y, width, height, image=None) -> None:
         super().__init__(name, pos_x, pos_y, width, height, image)
         self._speed = 10
-        self.screen = screen
+        self.screen:pygame.Surface = screen
         self.points = 0
         self._health = 100
         self.lifes = 2
         self.kills = 0
+        self._healthbar = pygame.rect.Rect((15, self.screen.get_size()[1]-50, 100, 20))
 
     def handle_input(self, event:pygame.event.EventType):
         if(event.type == pygame.KEYDOWN and event.key == pygame.K_LEFT):
@@ -79,7 +80,7 @@ class Player(GameObject):
             self.pos_y += y
 
     def move(self, direction):
-        if(direction == "left"):
+        if(direction == "left"):            
             self.pos_x -= self._speed
 
         if(direction == "right"):