{"id":6372,"date":"2020-07-08T08:41:06","date_gmt":"2020-07-08T06:41:06","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=6372"},"modified":"2020-07-08T08:41:06","modified_gmt":"2020-07-08T06:41:06","slug":"pygame-master-1","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/pygame-master-1\/","title":{"rendered":"Pygame Master 1"},"content":{"rendered":"

I think that the most hard stuff to start with Pygame is to… start, if you forgive the words game. In fact there are a lot non intuitive stuff to learn just to make a simple window without making it to crash, to load a sound in the right way, and image, not to talk about other stuff. Once you learned this, you can make very nice thing with pygame, so it’s a shame that you can be stopped by these silly stuff. For this reason, I am making this post where you can take care of all these basic stuffs at easy to have everything under control and without having to rewrite them everytime. So, here I will show you some stuff I learned and that I wished someone could have told me before.<\/p>\n

It’s just a window with everything ready to go<\/h2>\n

The first thing we are going to do is to fix the window with the way to close it (with the x button and the escape key) and to initialize the code for the audio to be the best. I added also a class for the colors, it is not necessary, but I like to have everything organized in the right place with the right name, to get the full controll of all the code process. It is a personal choice, I know, you do not have to do it.<\/p>\n

import pygame\r\nimport sys\r\nfrom glob import glob\r\nimport os\r\n\r\n\r\nclass Colors:\r\n    BLACK = (0, 0, 0)\r\n    RED = (255, 0, 0)\r\n    GREEN = (0, 255, 0)\r\n    YELLOW = (255, 255, 0)\r\n    ORANGE = (128, 255, 0)\r\n    BLUE = (0, 0, 255)\r\n    GRAY = (255, 255, 255)\r\n\r\n\r\ndef mixer():\r\n    \"Initializing pygame and mixer\"\r\n    pygame.mixer.pre_init(44100, -16, 1, 512)\r\n    pygame.init()\r\n    pygame.mixer.quit()\r\n    pygame.mixer.init(22050, -16, 2, 512)\r\n    pygame.mixer.set_num_channels(32)\r\n\r\n\r\ndef load_sounds(directory=\"sounds\"):\r\n    \"store in sounds dic all the sound in the directory by their name\"\r\n    global sounds\r\n    if \"sounds\" not in os.listdir():\r\n        os.mkdir(\"sounds\")\r\n\r\n    lsounds = glob(f\"{directory}\\\\*.wav\")\r\n    # Dictionary with all sounds, keys are the name of wav\r\n    sounds = {}\r\n    for sound in lsounds:\r\n        sounds[sound.split(\"\\\\\")[1][:-4]] = pygame.mixer.Sound(f\"{sound}\")\r\n\r\ndef play(sound):\r\n    \"It plays the sounds by the name of the file without .wav\"\r\n    global sounds\r\n    try:\r\n        pygame.mixer.Sound.play(sounds[sound])\r\n    except KeyError:\r\n        print(f\"------\\nAlert!\\nfile '{sound}.wav' not found in 'sounds'\\n------\")\r\n        print(\"Check the name of the file in the sounds folder\")\r\n\r\n\r\ndef create_fonts(family=\"Arial\", size=24):\r\n    return pygame.font.SysFont(family, size)\r\n\r\n\r\ndef init(size=(400, 400), name=\"Game\"):\r\n    \"The screen and the clock\"\r\n    global screen, clock\r\n    screen = pygame.display.set_mode((400, 400))\r\n    pygame.display.set_caption(\"Game\")\r\n    clock = pygame.time.Clock()\r\n    mixer()\r\n    load_sounds()\r\n\r\n\r\ndef event_listener():\r\n    \"Intercept the user inputs\"\r\n    for event in pygame.event.get():\r\n        k = pygame.KEYDOWN\r\n        e = pygame.K_ESCAPE\r\n        escape = event.type == k and event.key == e\r\n        if event.type == pygame.QUIT or escape:\r\n            pygame.quit()\r\n            sys.exit()\r\n\r\n\r\ndef main():\r\n    \"Takes care of the process inside the main window\"\r\n    while 1:\r\n        # Intercept user inputs\r\n        event_listener()\r\n        pygame.display.update()\r\n        clock.tick(360)\r\n\r\n\r\n# ====================== Start ======\r\n''' This initialize pygame, the mixer, load the sounds\r\n'''\r\ninit(size=(400, 400), name=\"Game\")\r\nplay(\"over2\")\r\n# this opens the window\r\nmain()\r\n\r\n<\/pre>\n
So the while loop takes care of what is goin’ on on the window. I’ve put outside the input control (event_listener()) to mantain the while loop clean and easy to manage, because it’s there that all the things starts to happen.<\/p>\n
\"\"<\/a> \"\"<\/a> \"\"<\/a><\/h2>\n
What now?<\/h2>\n
In the next post we will see how to take care of the graphic part and the fonts.<\/p>\n
1.1 – Pong the father of Arkanoid<\/p>\r\n
Pong v. 1.0 – Pygame example<\/a><\/p><\/blockquote>\r\n