added health bar

PyGame/practice/gameprac/hybrid.py

@@ -19,18 +19,30 @@ def draw_bg():
 
 # create spaceship class
 class Spaceship(pygame.sprite.Sprite):
-    def __init__(self,x ,y):
+    def __init__(self,x ,y, health):
         pygame.sprite.Sprite.__init__(self) # review init function 
         self.image = pygame.image.load("img/spaceship.png")
         self.rect = self.image.get_rect()
         self.rect.center = [x,y]
+        self.health_start = health
+        self.health_remaining = health
+    def update(self):
+        speed = 8
+        key =  pygame.key.get_pressed()
+        if key[pygame.K_a] and self.rect.left > 0: # Why zero not width tried width would not move
+            self.rect.x -= speed   # why speed not pixal + or - like others??
+        if key[pygame.K_d] and self.rect.right < WIDTH:
+            self.rect.x += speed
 
+        pygame.draw.rect(screen, RED, (self.rect.x, (self.rect.bottom +10), self.rect.width, 15))
+        if self.health_remaining > 0:
+            pygame.draw.rect(screen, GREEN, (self.rect.x, (self.rect.bottom +10), int(self.rect.width * (self.health_remaining / self.health_start)), 15) )
 
 # create sprite groups
 spaceship_group = pygame.sprite.Group()
 
 # create player
-spaceship = Spaceship(int(WIDTH / 2), HEIGHT - 100)
+spaceship = Spaceship(int(WIDTH / 2), HEIGHT - 100, 3)
 spaceship_group.add(spaceship)
 
 
@@ -60,8 +72,8 @@ while running:
     for event in pygame.event.get():
         if event.type == pygame.QUIT:
             running = False
-
-
+    
+    spaceship.update()
     # draw sprite groups on screen
     spaceship_group.draw(screen)