ADDING EXPLOSIONS

PyGame/practice/gameprac/hybrid.py

@@ -3,6 +3,7 @@ import os
 os.environ['PYGAME_HIDE_SUPPORT_PROMPT'] = "hide"
 from pygame.sprite import Group
 import pygame
+from pygame import mixer
 from pygame.locals import *
 import random
 
@@ -55,9 +56,19 @@ class Spaceship(pygame.sprite.Sprite):
             bullet_group.add(bullet)
             self.last_shot = time_now
 
+        # update mask
+        self.mask = pygame.mask.from_surface(self.image) # this does pixel perfect collison becasue it ignores anything that is not spaceship
+
+        
+
         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) )
+        elif self.health_remaining <= 0:
+            explosion = Explosion(self.rect.centerx, self.rect.centery, 3)
+            explosion_group.add(explosion)
+            self.kill()
+    
 
 
 class Bullets(pygame.sprite.Sprite):
@@ -70,6 +81,11 @@ class Bullets(pygame.sprite.Sprite):
         self.rect.y -= 5
         if self.rect.bottom < 0:
             self.kill() 
+        if pygame.sprite.spritecollide(self, alien_group, True):
+            self.kill()
+            explosion = Explosion(self.rect.centerx, self.rect.centery, 2)
+            explosion_group.add(explosion)
+    
 # video for this https://www.youtube.com/watch?v=mqz1_wRSMwo
 class Aliens(pygame.sprite.Sprite): 
     def __init__(self,x ,y):
@@ -95,13 +111,55 @@ class Alien_Bullets(pygame.sprite.Sprite):
     def update(self):
         self.rect.y += 2
         if self.rect.top > HEIGHT:
-            self.kill() 
+            self.kill()
+        if pygame.sprite.spritecollide(self, spaceship_group, False, pygame.sprite.collide_mask):
+           self.kill()
+           spaceship.health_remaining -= 1  
+           explosion = Explosion(self.rect.centerx, self.rect.centery, 1)
+           explosion_group.add(explosion)
+    
+
+#create exploxion class
+class Explosion(pygame.sprite.Sprite):
+    def __init__(self, x, y, size):
+        pygame.sprite.Sprite.__init__(self)
+        self.images = []
+        for num in range(1, 6):
+            img = pygame.image.load(f"img/exp{num}.png")
+            if size == 1:
+                img = pygame.transform.scale(img, (20, 20))
+            if size == 2:
+                img = pygame.transform.scale(img, (40, 40))
+            if size == 3:
+                img = pygame.transform.scale(img, (160, 160))
+            self.images.append(img)
+        self.index = 0
+        self.image = self.images[self.index]
+        self.rect = self.image.get_rect()
+        self.rect.center = [x, y]
+        self.counter = 0
+    
+    def update(self):
+        expolosion_speed = 3
+        self.counter += 1
+
+        if self.counter >= expolosion_speed and self.index < len(self.images) - 1:
+            self.counter = 0
+            self.index += 1
+            self.image = self.images[self.index]
+
+        if self.index >= len(self.images) - 1 and self.counter >= expolosion_speed:
+            self.kill()
+
+
+
 
 # create sprite groups
 spaceship_group = pygame.sprite.Group()
 bullet_group = pygame.sprite.Group()
 alien_group = pygame.sprite.Group()
 alien_bullet_group = pygame.sprite.Group()
+explosion_group = pygame.sprite.Group()
 # create player
 spaceship = Spaceship(int(WIDTH / 2), HEIGHT - 100, 3)
 spaceship_group.add(spaceship)
@@ -153,11 +211,13 @@ while running:
     bullet_group.update()
     alien_group.update()
     alien_bullet_group.update()
+    explosion_group.update()
     # draw sprite groups on screen
     spaceship_group.draw(screen)
     bullet_group.draw(screen)
     alien_group.draw(screen)
     alien_bullet_group.draw(screen)
+    explosion_group.draw(screen)
     pygame.display.update()