https:\/\/pythonprogramming.altervista.org\/wp-content\/uploads\/2020\/08\/Space-Shooter-2020-08-16-19-06-24.mp4<\/a><\/video><\/div>\nThe code (find the assets on the page)<\/p>\n
from __future__ import division\r\nimport pygame\r\nimport random\r\nfrom os import path\r\n\r\n## assets folder\r\nimg_dir = path.join(path.dirname(__file__), 'assets')\r\nsound_folder = path.join(path.dirname(__file__), 'sounds')\r\n\r\n###############################\r\n## to be placed in \"constant.py\" later\r\nWIDTH = 480\r\nHEIGHT = 600\r\nFPS = 60\r\nPOWERUP_TIME = 5000\r\nBAR_LENGTH = 100\r\nBAR_HEIGHT = 10\r\n\r\n# Define Colors\r\nWHITE = (255, 255, 255)\r\nBLACK = (0, 0, 0)\r\nRED = (255, 0, 0)\r\nGREEN = (0, 255, 0)\r\nBLUE = (0, 0, 255)\r\nYELLOW = (255, 255, 0)\r\n###############################\r\n\r\n###############################\r\n## to placed in \"__init__.py\" later\r\n## initialize pygame and create window\r\npygame.init()\r\npygame.mixer.init() # For sound\r\nscreen = pygame.display.set_mode((WIDTH, HEIGHT))\r\npygame.display.set_caption(\"Space Shooter\")\r\nclock = pygame.time.Clock() # For syncing the FPS\r\n###############################\r\n\r\nfont_name = pygame.font.match_font('arial')\r\n\r\n\r\ndef main_menu():\r\n global screen\r\n\r\n menu_song = pygame.mixer.music.load(path.join(sound_folder, \"menu.ogg\"))\r\n pygame.mixer.music.play(-1)\r\n\r\n title = pygame.image.load(path.join(img_dir, \"main.png\")).convert()\r\n title = pygame.transform.scale(title, (WIDTH, HEIGHT), screen)\r\n\r\n screen.blit(title, (0, 0))\r\n pygame.display.update()\r\n\r\n while True:\r\n ev = pygame.event.poll()\r\n if ev.type == pygame.KEYDOWN:\r\n if ev.key == pygame.K_RETURN:\r\n break\r\n elif ev.key == pygame.K_q:\r\n pygame.quit()\r\n quit()\r\n elif ev.type == pygame.QUIT:\r\n pygame.quit()\r\n quit()\r\n else:\r\n draw_text(screen, \"Press [ENTER] To Begin\", 30, WIDTH\/2, HEIGHT\/2)\r\n draw_text(screen, \"or [Q] To Quit\", 30, WIDTH\/2, (HEIGHT\/2)+40)\r\n pygame.display.update()\r\n\r\n #pygame.mixer.music.stop()\r\n ready = pygame.mixer.Sound(path.join(sound_folder, 'getready.ogg'))\r\n ready.play()\r\n screen.fill(BLACK)\r\n draw_text(screen, \"GET READY!\", 40, WIDTH\/2, HEIGHT\/2)\r\n pygame.display.update()\r\n\r\n\r\ndef draw_text(surf, text, size, x, y):\r\n ## selecting a cross platform font to display the score\r\n font = pygame.font.Font(font_name, size)\r\n # True denotes the font to be anti-aliased\r\n text_surface = font.render(text, True, WHITE)\r\n text_rect = text_surface.get_rect()\r\n text_rect.midtop = (x, y)\r\n surf.blit(text_surface, text_rect)\r\n\r\n\r\ndef draw_shield_bar(surf, x, y, pct):\r\n # if pct < 0:\r\n # pct = 0\r\n pct = max(pct, 0)\r\n ## moving them to top\r\n # BAR_LENGTH = 100\r\n # BAR_HEIGHT = 10\r\n fill = (pct \/ 100) * BAR_LENGTH\r\n outline_rect = pygame.Rect(x, y, BAR_LENGTH, BAR_HEIGHT)\r\n fill_rect = pygame.Rect(x, y, fill, BAR_HEIGHT)\r\n pygame.draw.rect(surf, GREEN, fill_rect)\r\n pygame.draw.rect(surf, WHITE, outline_rect, 2)\r\n\r\n\r\ndef draw_lives(surf, x, y, lives, img):\r\n for i in range(lives):\r\n img_rect = img.get_rect()\r\n img_rect.x = x + 30 * i\r\n img_rect.y = y\r\n surf.blit(img, img_rect)\r\n\r\n\r\ndef newmob():\r\n mob_element = Mob()\r\n all_sprites.add(mob_element)\r\n mobs.add(mob_element)\r\n\r\n\r\nclass Explosion(pygame.sprite.Sprite):\r\n def __init__(self, center, size):\r\n pygame.sprite.Sprite.__init__(self)\r\n self.size = size\r\n self.image = explosion_anim[self.size][0]\r\n self.rect = self.image.get_rect()\r\n self.rect.center = center\r\n self.frame = 0\r\n self.last_update = pygame.time.get_ticks()\r\n self.frame_rate = 75\r\n\r\n def update(self):\r\n now = pygame.time.get_ticks()\r\n if now - self.last_update > self.frame_rate:\r\n self.last_update = now\r\n self.frame += 1\r\n if self.frame == len(explosion_anim[self.size]):\r\n self.kill()\r\n else:\r\n center = self.rect.center\r\n self.image = explosion_anim[self.size][self.frame]\r\n self.rect = self.image.get_rect()\r\n self.rect.center = center\r\n\r\n\r\nclass Player(pygame.sprite.Sprite):\r\n def __init__(self):\r\n pygame.sprite.Sprite.__init__(self)\r\n ## scale the player img down\r\n self.image = pygame.transform.scale(player_img, (50, 38))\r\n self.image.set_colorkey(BLACK)\r\n self.rect = self.image.get_rect()\r\n self.radius = 20\r\n self.rect.centerx = WIDTH \/ 2\r\n self.rect.bottom = HEIGHT - 10\r\n self.speedx = 0\r\n self.shield = 100\r\n self.shoot_delay = 250\r\n self.last_shot = pygame.time.get_ticks()\r\n self.lives = 3\r\n self.hidden = False\r\n self.hide_timer = pygame.time.get_ticks()\r\n self.power = 1\r\n self.power_timer = pygame.time.get_ticks()\r\n\r\n def update(self):\r\n ## time out for powerups\r\n if self.power >= 2 and pygame.time.get_ticks() - self.power_time > POWERUP_TIME:\r\n self.power -= 1\r\n self.power_time = pygame.time.get_ticks()\r\n\r\n ## unhide\r\n if self.hidden and pygame.time.get_ticks() - self.hide_timer > 1000:\r\n self.hidden = False\r\n self.rect.centerx = WIDTH \/ 2\r\n self.rect.bottom = HEIGHT - 30\r\n\r\n self.speedx = 0 # makes the player static in the screen by default.\r\n # then we have to check whether there is an event hanlding being done for the arrow keys being\r\n ## pressed\r\n\r\n ## will give back a list of the keys which happen to be pressed down at that moment\r\n keystate = pygame.key.get_pressed()\r\n if keystate[pygame.K_LEFT]:\r\n self.speedx = -5\r\n elif keystate[pygame.K_RIGHT]:\r\n self.speedx = 5\r\n\r\n #Fire weapons by holding spacebar\r\n if keystate[pygame.K_SPACE]:\r\n self.shoot()\r\n\r\n ## check for the borders at the left and right\r\n if self.rect.right > WIDTH:\r\n self.rect.right = WIDTH\r\n if self.rect.left < 0:\r\n self.rect.left = 0\r\n\r\n self.rect.x += self.speedx\r\n\r\n def shoot(self):\r\n ## to tell the bullet where to spawn\r\n now = pygame.time.get_ticks()\r\n if now - self.last_shot > self.shoot_delay:\r\n self.last_shot = now\r\n if self.power == 1:\r\n bullet = Bullet(self.rect.centerx, self.rect.top)\r\n all_sprites.add(bullet)\r\n bullets.add(bullet)\r\n shooting_sound.play()\r\n if self.power == 2:\r\n bullet1 = Bullet(self.rect.left, self.rect.centery)\r\n bullet2 = Bullet(self.rect.right, self.rect.centery)\r\n all_sprites.add(bullet1)\r\n all_sprites.add(bullet2)\r\n bullets.add(bullet1)\r\n bullets.add(bullet2)\r\n shooting_sound.play()\r\n\r\n \"\"\" MOAR POWAH \"\"\"\r\n if self.power >= 3:\r\n bullet1 = Bullet(self.rect.left, self.rect.centery)\r\n bullet2 = Bullet(self.rect.right, self.rect.centery)\r\n # Missile shoots from center of ship\r\n missile1 = Missile(self.rect.centerx, self.rect.top)\r\n all_sprites.add(bullet1)\r\n all_sprites.add(bullet2)\r\n all_sprites.add(missile1)\r\n bullets.add(bullet1)\r\n bullets.add(bullet2)\r\n bullets.add(missile1)\r\n shooting_sound.play()\r\n missile_sound.play()\r\n\r\n def powerup(self):\r\n self.power += 1\r\n self.power_time = pygame.time.get_ticks()\r\n\r\n def hide(self):\r\n self.hidden = True\r\n self.hide_timer = pygame.time.get_ticks()\r\n self.rect.center = (WIDTH \/ 2, HEIGHT + 200)\r\n\r\n\r\n# defines the enemies\r\nclass Mob(pygame.sprite.Sprite):\r\n def __init__(self):\r\n pygame.sprite.Sprite.__init__(self)\r\n self.image_orig = random.choice(meteor_images)\r\n self.image_orig.set_colorkey(BLACK)\r\n self.image = self.image_orig.copy()\r\n self.rect = self.image.get_rect()\r\n self.radius = int(self.rect.width * .90 \/ 2)\r\n self.rect.x = random.randrange(0, WIDTH - self.rect.width)\r\n self.rect.y = random.randrange(-150, -100)\r\n # for randomizing the speed of the Mob\r\n self.speedy = random.randrange(5, 20)\r\n\r\n ## randomize the movements a little more\r\n self.speedx = random.randrange(-3, 3)\r\n\r\n ## adding rotation to the mob element\r\n self.rotation = 0\r\n self.rotation_speed = random.randrange(-8, 8)\r\n # time when the rotation has to happen\r\n self.last_update = pygame.time.get_ticks()\r\n\r\n def rotate(self):\r\n time_now = pygame.time.get_ticks()\r\n if time_now - self.last_update > 50: # in milliseconds\r\n self.last_update = time_now\r\n self.rotation = (self.rotation + self.rotation_speed) % 360\r\n new_image = pygame.transform.rotate(self.image_orig, self.rotation)\r\n old_center = self.rect.center\r\n self.image = new_image\r\n self.rect = self.image.get_rect()\r\n self.rect.center = old_center\r\n\r\n def update(self):\r\n self.rotate()\r\n self.rect.x += self.speedx\r\n self.rect.y += self.speedy\r\n ## now what if the mob element goes out of the screen\r\n\r\n if (self.rect.top > HEIGHT + 10) or (self.rect.left < -25) or (self.rect.right > WIDTH + 20):\r\n self.rect.x = random.randrange(0, WIDTH - self.rect.width)\r\n self.rect.y = random.randrange(-100, -40)\r\n # for randomizing the speed of the Mob\r\n self.speedy = random.randrange(1, 8)\r\n\r\n## defines the sprite for Powerups\r\n\r\n\r\nclass Pow(pygame.sprite.Sprite):\r\n def __init__(self, center):\r\n pygame.sprite.Sprite.__init__(self)\r\n self.type = random.choice(['shield', 'gun'])\r\n self.image = powerup_images[self.type]\r\n self.image.set_colorkey(BLACK)\r\n self.rect = self.image.get_rect()\r\n ## place the bullet according to the current position of the player\r\n self.rect.center = center\r\n self.speedy = 2\r\n\r\n def update(self):\r\n \"\"\"should spawn right in front of the player\"\"\"\r\n self.rect.y += self.speedy\r\n ## kill the sprite after it moves over the top border\r\n if self.rect.top > HEIGHT:\r\n self.kill()\r\n\r\n\r\n## defines the sprite for bullets\r\nclass Bullet(pygame.sprite.Sprite):\r\n def __init__(self, x, y):\r\n pygame.sprite.Sprite.__init__(self)\r\n self.image = bullet_img\r\n self.image.set_colorkey(BLACK)\r\n self.rect = self.image.get_rect()\r\n ## place the bullet according to the current position of the player\r\n self.rect.bottom = y\r\n self.rect.centerx = x\r\n self.speedy = -10\r\n\r\n def update(self):\r\n \"\"\"should spawn right in front of the player\"\"\"\r\n self.rect.y += self.speedy\r\n ## kill the sprite after it moves over the top border\r\n if self.rect.bottom < 0:\r\n self.kill()\r\n\r\n ## now we need a way to shoot\r\n ## lets bind it to \"spacebar\".\r\n ## adding an event for it in Game loop\r\n\r\n## FIRE ZE MISSILES\r\n\r\n\r\nclass Missile(pygame.sprite.Sprite):\r\n def __init__(self, x, y):\r\n pygame.sprite.Sprite.__init__(self)\r\n self.image = missile_img\r\n self.image.set_colorkey(BLACK)\r\n self.rect = self.image.get_rect()\r\n self.rect.bottom = y\r\n self.rect.centerx = x\r\n self.speedy = -10\r\n\r\n def update(self):\r\n \"\"\"should spawn right in front of the player\"\"\"\r\n self.rect.y += self.speedy\r\n if self.rect.bottom < 0:\r\n self.kill()\r\n\r\n\r\n###################################################\r\n## Load all game images\r\n\r\nbackground = pygame.image.load(path.join(img_dir, 'starfield.png')).convert()\r\nbackground_rect = background.get_rect()\r\n## ^^ draw this rect first\r\n\r\nplayer_img = pygame.image.load(\r\n path.join(img_dir, 'playerShip1_orange.png')).convert()\r\nplayer_mini_img = pygame.transform.scale(player_img, (25, 19))\r\nplayer_mini_img.set_colorkey(BLACK)\r\nbullet_img = pygame.image.load(path.join(img_dir, 'laserRed16.png')).convert()\r\nmissile_img = pygame.image.load(\r\n path.join(img_dir, 'missile.png')).convert_alpha()\r\n# meteor_img = pygame.image.load(path.join(img_dir, 'meteorBrown_med1.png')).convert()\r\nmeteor_images = []\r\nmeteor_list = [\r\n 'meteorBrown_big1.png',\r\n 'meteorBrown_big2.png',\r\n 'meteorBrown_med1.png',\r\n 'meteorBrown_med3.png',\r\n 'meteorBrown_small1.png',\r\n 'meteorBrown_small2.png',\r\n 'meteorBrown_tiny1.png'\r\n]\r\n\r\nfor image in meteor_list:\r\n meteor_images.append(pygame.image.load(\r\n path.join(img_dir, image)).convert())\r\n\r\n## meteor explosion\r\nexplosion_anim = {}\r\nexplosion_anim['lg'] = []\r\nexplosion_anim['sm'] = []\r\nexplosion_anim['player'] = []\r\nfor i in range(9):\r\n filename = 'regularExplosion0{}.png'.format(i)\r\n img = pygame.image.load(path.join(img_dir, filename)).convert()\r\n img.set_colorkey(BLACK)\r\n ## resize the explosion\r\n img_lg = pygame.transform.scale(img, (75, 75))\r\n explosion_anim['lg'].append(img_lg)\r\n img_sm = pygame.transform.scale(img, (32, 32))\r\n explosion_anim['sm'].append(img_sm)\r\n\r\n ## player explosion\r\n filename = 'sonicExplosion0{}.png'.format(i)\r\n img = pygame.image.load(path.join(img_dir, filename)).convert()\r\n img.set_colorkey(BLACK)\r\n explosion_anim['player'].append(img)\r\n\r\n## load power ups\r\npowerup_images = {}\r\npowerup_images['shield'] = pygame.image.load(\r\n path.join(img_dir, 'shield_gold.png')).convert()\r\npowerup_images['gun'] = pygame.image.load(\r\n path.join(img_dir, 'bolt_gold.png')).convert()\r\n\r\n\r\n###################################################\r\n\r\n\r\n###################################################\r\n### Load all game sounds\r\nshooting_sound = pygame.mixer.Sound(path.join(sound_folder, 'pew.wav'))\r\nmissile_sound = pygame.mixer.Sound(path.join(sound_folder, 'rocket.ogg'))\r\nexpl_sounds = []\r\nfor sound in ['expl3.wav', 'expl6.wav']:\r\n expl_sounds.append(pygame.mixer.Sound(path.join(sound_folder, sound)))\r\n## main background music\r\n#pygame.mixer.music.load(path.join(sound_folder, 'tgfcoder-FrozenJam-SeamlessLoop.ogg'))\r\npygame.mixer.music.set_volume(0.2) # simmered the sound down a little\r\n\r\nplayer_die_sound = pygame.mixer.Sound(path.join(sound_folder, 'rumble1.ogg'))\r\n###################################################\r\n\r\n## TODO: make the game music loop over again and again. play(loops=-1) is not working\r\n# Error :\r\n# TypeError: play() takes no keyword arguments\r\n#pygame.mixer.music.play()\r\n\r\n#############################\r\n## Game loop\r\nrunning = True\r\nmenu_display = True\r\nwhile running:\r\n if menu_display:\r\n main_menu()\r\n pygame.time.wait(3000)\r\n\r\n #Stop menu music\r\n pygame.mixer.music.stop()\r\n #Play the gameplay music\r\n pygame.mixer.music.load(\r\n path.join(sound_folder, 'tgfcoder-FrozenJam-SeamlessLoop.ogg'))\r\n # makes the gameplay sound in an endless loop\r\n pygame.mixer.music.play(-1)\r\n\r\n menu_display = False\r\n\r\n ## group all the sprites together for ease of update\r\n all_sprites = pygame.sprite.Group()\r\n player = Player()\r\n all_sprites.add(player)\r\n\r\n ## spawn a group of mob\r\n mobs = pygame.sprite.Group()\r\n for i in range(8): # 8 mobs\r\n # mob_element = Mob()\r\n # all_sprites.add(mob_element)\r\n # mobs.add(mob_element)\r\n newmob()\r\n\r\n ## group for bullets\r\n bullets = pygame.sprite.Group()\r\n powerups = pygame.sprite.Group()\r\n\r\n #### Score board variable\r\n score = 0\r\n\r\n #1 Process input\/events\r\n clock.tick(FPS) # will make the loop run at the same speed all the time\r\n # gets all the events which have occured till now and keeps tab of them.\r\n for event in pygame.event.get():\r\n ## listening for the the X button at the top\r\n if event.type == pygame.QUIT:\r\n running = False\r\n\r\n ## Press ESC to exit game\r\n if event.type == pygame.KEYDOWN:\r\n if event.key == pygame.K_ESCAPE:\r\n running = False\r\n # ## event for shooting the bullets\r\n # elif event.type == pygame.KEYDOWN:\r\n # if event.key == pygame.K_SPACE:\r\n # player.shoot() ## we have to define the shoot() function\r\n\r\n #2 Update\r\n all_sprites.update()\r\n\r\n ## check if a bullet hit a mob\r\n ## now we have a group of bullets and a group of mob\r\n hits = pygame.sprite.groupcollide(mobs, bullets, True, True)\r\n ## now as we delete the mob element when we hit one with a bullet, we need to respawn them again\r\n ## as there will be no mob_elements left out\r\n for hit in hits:\r\n score += 50 - hit.radius # give different scores for hitting big and small metoers\r\n random.choice(expl_sounds).play()\r\n # m = Mob()\r\n # all_sprites.add(m)\r\n # mobs.add(m)\r\n expl = Explosion(hit.rect.center, 'lg')\r\n all_sprites.add(expl)\r\n if random.random() > 0.9:\r\n pow = Pow(hit.rect.center)\r\n all_sprites.add(pow)\r\n powerups.add(pow)\r\n newmob() # spawn a new mob\r\n\r\n ## ^^ the above loop will create the amount of mob objects which were killed spawn again\r\n #########################\r\n\r\n ## check if the player collides with the mob\r\n # gives back a list, True makes the mob element disappear\r\n hits = pygame.sprite.spritecollide(\r\n player, mobs, True, pygame.sprite.collide_circle)\r\n for hit in hits:\r\n player.shield -= hit.radius * 2\r\n expl = Explosion(hit.rect.center, 'sm')\r\n all_sprites.add(expl)\r\n newmob()\r\n if player.shield <= 0:\r\n player_die_sound.play()\r\n death_explosion = Explosion(player.rect.center, 'player')\r\n all_sprites.add(death_explosion)\r\n # running = False ## GAME OVER 3:D\r\n player.hide()\r\n player.lives -= 1\r\n player.shield = 100\r\n\r\n ## if the player hit a power up\r\n hits = pygame.sprite.spritecollide(player, powerups, True)\r\n for hit in hits:\r\n if hit.type == 'shield':\r\n player.shield += random.randrange(10, 30)\r\n if player.shield >= 100:\r\n player.shield = 100\r\n if hit.type == 'gun':\r\n player.powerup()\r\n\r\n ## if player died and the explosion has finished, end game\r\n if player.lives == 0 and not death_explosion.alive():\r\n running = False\r\n # menu_display = True\r\n # pygame.display.update()\r\n\r\n #3 Draw\/render\r\n screen.fill(BLACK)\r\n ## draw the stargaze.png image\r\n screen.blit(background, background_rect)\r\n\r\n all_sprites.draw(screen)\r\n # 10px down from the screen\r\n draw_text(screen, str(score), 18, WIDTH \/ 2, 10)\r\n draw_shield_bar(screen, 5, 5, player.shield)\r\n\r\n # Draw lives\r\n draw_lives(screen, WIDTH - 100, 5, player.lives, player_mini_img)\r\n\r\n ## Done after drawing everything to the screen\r\n pygame.display.flip()\r\n\r\npygame.quit()\r\n<\/pre>\n\r\n