{"id":6065,"date":"2020-06-10T08:31:03","date_gmt":"2020-06-10T06:31:03","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=6065"},"modified":"2023-09-09T22:14:05","modified_gmt":"2023-09-09T20:14:05","slug":"load-a-spreadsheet","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/load-a-spreadsheet\/","title":{"rendered":"Pygame by examples 2 – Load a spreadsheet"},"content":{"rendered":"\n

Module: pygame<\/h3>\n\n\n\n

To install pygame, simple open cmd and write:<\/p>\n\n\n\n

pip install pygame<\/strong><\/p>\n\n\n\n

Objective: animate a sprite<\/h2>\n\n\n\n

We want to show an animated sprite witha a spreadsheet like the following image, i.e. a series of images that shown one after another give the illusion of movement. Alla the pictures are on the same file image (a png, for example). There are not 13 different files, but 1 png file with 13 different animations of the same \ud83e\udd95, in this example. Let’s see how to show the animation correctly.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Load the spreadsheet<\/h3>\n\n\n\n

The images for the sprite can be downloaded here<\/a> for free.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

How to load a spreadsheet<\/strong> in pygame?<\/h2>\n\n\n\n

<\/p>\n\n\n\n

# load a spreadsheet\nimport pygame\nimport sys\n# main surface\nscreen = pygame.display.set_mode((800, 600))\n# surface 1\nclock = pygame.time.Clock()\nimg = pygame.image.load(\"img\\\\dino_1.png\")\nnframes = 8\nsize = [int(img.get_width() \/ nframes), img.get_height()]\nprint(size)\n\nanimations = []\nfor x in range(nframes):\n    frame_location = [size[0] * x, 0]  # so starting with 0, x moves with each iteration 80 pxl to the right\n    img_rect = pygame.Rect(frame_location, size)\n    \n    new_img = img.subsurface(img_rect)  # not the same variable as img\n    animations.append(new_img)\n    \nprint(animations)\n\ncounter = 0\nloop = 1\nwhile loop:\n    for event in pygame.event.get():\n        if event.type == pygame.QUIT:\n            loop = 0\n    if counter < nframes -1:\n        counter +=1\n    else:\n        counter = 0\n    screen.fill((0,0,0))\n    screen.blit(animations[counter], (10, 150))\n    pygame.display.flip()\n    clock.tick(10)\n\npygame.quit()\nsys.exit()<\/pre>\n\n\n\n
How to join the images<\/h2>\n\n\n\n
In case you want to join the images with the different poses of the dino that are in different files, you can use this script below. Read this post about it<\/a> and master it.<\/p>\n\n\n\n
import numpy as np\nfrom PIL import Image\nimport glob\nimport sys\n\n\nprint(\"To join vertically: py -m join v\")\n\nprint(\"To join horizzontally: py -m join h\")\n\n\ndef join():\n    list_im = glob.glob(\"*.png\")\n    imgs = [Image.open(i) for i in list_im]\n    # resize images to the smallest one\n    min_shape = sorted([(np.sum(i.size), i.size) for i in imgs])[0][1]\n    imgs_comb = np.hstack((np.asarray(i.resize(min_shape)) for i in imgs))\n\n    # save that beautiful picture\n    if sys.argv[1] == \"v\":\n        # for a vertical stacking it is simple: use vstack\n        imgs_comb = np.vstack((np.asarray(i.resize(min_shape)) for i in imgs))\n        imgs_comb = Image.fromarray(imgs_comb)\n        imgs_comb.save('vertical.png')\n\n    else:\n        imgs_comb = Image.fromarray(imgs_comb)\n        imgs_comb.save('horizontal.png')\n\n\njoin()\n<\/pre>\n\n\n\n
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