added shooting

PyGame/practice/gameprac/hybrid.py

@@ -26,20 +26,43 @@ class Spaceship(pygame.sprite.Sprite):
         self.rect.center = [x,y]
         self.health_start = health
         self.health_remaining = health
+        self.last_shot = pygame.time.get_ticks()
     def update(self):
         speed = 8
+        cooldown = 500 # millisconds
         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
         
+        time_now = pygame.time.get_ticks()
+
+        # shoot
+        if key[pygame.K_w] and time_now - self.last_shot > cooldown:
+            bullet = Bullets(self.rect.centerx, self.rect.top)
+            bullet_group.add(bullet)
+            self.last_shot = time_now
+
         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) )
 
+
+class Bullets(pygame.sprite.Sprite):
+    def __init__(self,x ,y):
+        pygame.sprite.Sprite.__init__(self) # review init function 
+        self.image = pygame.image.load("img/bullet.png")
+        self.rect = self.image.get_rect()
+        self.rect.center = [x, y]
+    def update(self):
+        self.rect.y -= 5
+
+
+
 # create sprite groups
 spaceship_group = pygame.sprite.Group()
+bullet_group = pygame.sprite.Group()
 
 # create player
 spaceship = Spaceship(int(WIDTH / 2), HEIGHT - 100, 3)
@@ -64,7 +87,6 @@ running = True
 while running:
     clock.tick(FPS)
  
-    #draw background
     draw_bg()
 
     # event handlers
@@ -74,9 +96,11 @@ while running:
             running = False
     
     spaceship.update()
+
+    bullet_group.update()
     # draw sprite groups on screen
     spaceship_group.draw(screen)
- 
+    bullet_group.draw(screen)
     pygame.display.update() # Go over it again FLIP vs UPDATE Which to use When