I wanted to download an older version of one of my carts and didnt save the cart number or add it to my cart thread. I couldn't find a good way to navigate the BBS to find my old carts. So I downloaded them all (AFAIK) up to 7/22/18.
Here's a link to them all: Download
Let me know if I missed any.
(use the pause menu to get the cart number and/or try another one)
I used c# webclient and went through the web. And yes some of them just dont exist.
https://www.lexaloffle.com/bbs/cposts/{x}/{cart_number}.p8.png
I didnt even think of using pico-8! (duh!)
@spencifier: AFAIK you couldn't do this with pico-8 anyway. load() also runs the cart so you couldn't save it with code. Felice's post was pseudo-code for what you actually did and the cart I posted was just a semi-related random thought :)
I'm entirely certain there's some garbage collection going on for carts which don't exist in posts/threads anymore. If you want to keep your old versions accessible, you need to stuff them in a post somewhere, Presumably the bottom of your main thread post in a little hidden spoiler area would be ideal? I think that having multiple carts in the same post keeps all but the first one from showing up in splore, anyway.
So, uh, has this been updated with new carts? I'm building my retropie pico8 box and I'd love it to work offline.
Time to revisit this. I started using tac08 on my rg350 and wanted to download a few carts. So...I made a small python program that will find and download all carts. As of writing this, there are 8,478 carts (150MB)
Credit and details on how to do this is here: https://www.ebartsoft.com/pico8
python3
import requests
import os, sys, time
from os.path import exists
from PIL import Image
from io import BytesIO
CART_DOWNLOAD_DIR = os.path.dirname(__file__) + "\carts"
PAGES = 5320
DOWNLOAD_URL = "https://www.lexaloffle.com/bbs/get_cart.php?cat=7&play_src=2&lid="
def save_cart(cart_info, data):
# Remove invalid filepath characters
filename = "".join(x for x in cart_info[1] if x.isalnum())
# If two carts have the same title add on the carts unique name.
if exists(CART_DOWNLOAD_DIR + "\\" + filename + ".p8.png"):
filename += "." + cart_info[3]
# Write cart data to file
with open(CART_DOWNLOAD_DIR + "\\" + filename + ".p8.png","wb") as cd:
cd.write(data)
def get_cart_listing(sub, start_index):
# Search cart listings 32 at a time.
print("Searching carts " + str(32*start_index) + " to " + str((32*start_index)+31) + "...")
r = requests.get("https://www.lexaloffle.com/bbs/cpost_lister3.php?max=32&start_index=" + str(32*start_index) + "&cat=7&sub=" + str(sub) + "&version=000202cw&cfil=0")
return r.content
def parse_cart_info(pixels):
# Cart listing image is 32 carts in a 4 x 8 grid
# Metadata about each cart is in the 8 pixel rows under each cart, RGB encoded
cart_info = []
for row in range (1, 5):
for col in range (0, 8):
cart_data = []
for y in range (128*row + (8*(row-1)), (128*row) + 8 + (8*(row-1))):
line = ""
for x in range (128*col, (128*col) + 128):
rgba = pixels[x,y]
line += chr(rgba) # decrypt pixel RGB to a character
cart_data.append(line.replace("\x00","")) # Clean-up empty characters
cart_info.append(cart_data)
return cart_info
def download_cart(cart_info):
dc = requests.get(DOWNLOAD_URL + cart_info[3])
save_cart(cart_info, dc.content)
def main():
# Make download directory for all the carts if it doesn't exist
if not os.path.isdir(CART_DOWNLOAD_DIR):
os.mkdir(CART_DOWNLOAD_DIR)
for sub in [2,3,4,8]:
print("Sub: " + str(sub))
for p in range(0, PAGES):
print("Page: " + str(p+1) + " of " + str(PAGES))
cart_listing_bytes = get_cart_listing(sub, p)
if len(cart_listing_bytes) <= 1064:
break
cart_listing_image = Image.open(BytesIO(cart_listing_bytes))
cart_pixels = cart_listing_image.load()
cart_listing_info = parse_cart_info(cart_pixels)
for i in range(len(cart_listing_info)):
if cart_listing_info[i][3]:
print("Downloading cart " + str(32*p+i) + "..." + cart_listing_info[i][1])
download_cart(cart_listing_info[i])
print("Waiting 2 secs...")
time.sleep(2) # Trying not to kill the BBS
print("Cart downloads complete.")
if __name__ == "__main__":
main() |
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