How to make the BytesToBits welcome GIF

README.md

Since a LOT of people like the way it looks, and wanted to know how to make it, here is the code :3

Preview

btb-welcome-gif.py

import disnake
from disnake.ext import commands
from PIL import Image, ImageFont, ImageDraw, ImageStat
import textwrap
from io import BytesIO
import numpy as np

# Credit for the ascii art (it's slightly modified though) -> https://www.geeksforgeeks.org/converting-image-ascii-image-python/
gscale1 = "$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`'. "
 
gscale2 = ' .:-=+*#%@'
 
def getAverageL(image: Image):
    im = np.array(image)
    w,h = im.shape
 
    return np.average(im.reshape(w*h))
 
def covertImageToAscii(IMAGE: Image, cols: int, scale: float, moreLevels: bool):
    global gscale1, gscale2
    image = IMAGE.convert('L')
    W, H = image.size
    w = W/cols
    h = w/scale
    rows = int(H/h)
     
    if cols > W or rows > H:
        return None
 
    aimg = []
    for j in range(rows):
        y1 = int(j*h)
        y2 = int((j+1)*h)
 
        if j == rows-1:
            y2 = H
 
        aimg.append("")
 
        for i in range(cols):
            x1 = int(i*w)
            x2 = int((i+1)*w)
            if i == cols-1:
                x2 = W
            img = image.crop((x1, y1, x2, y2))          
            avg = int(getAverageL(img))
 
            if moreLevels:
                gsval = gscale1[int((avg*69)/255)]
            else:
                gsval = gscale2[int((avg*9)/255)]

            aimg[j] += gsval
    return aimg

def ascii_art(image: BytesIO, more_levels = False):
    scale = .65
    cols = 100

    image = Image.open(image)

    aimg = covertImageToAscii( image, cols, scale, more_levels )
   
    return aimg

def brightness_level(image: Image.Image):
    image = image.convert('L')
    stat = ImageStat.Stat(image)
    return stat.mean[0]

def create_welcome(user:disnake.Member, user_avatar, join_pos):
    canvas = Image.new('RGB', (600, 250), (0,0,0,1))

    image_array = [canvas]

    text_color = 108, 247, 80
    info_font = ImageFont.truetype("assets/fonts/terminal.ttf", size=15)
    welcome_font = ImageFont.truetype("assets/fonts/terminal.ttf", size=20)
    name_font = ImageFont.truetype("assets/fonts/terminal.ttf", size=30)
    ascii_font = ImageFont.truetype("assets/fonts/terminal.ttf", size=3)
    WELCOME_TEXT = "Welcome to BytesToBits,"
    NAME_TEXT = user.name
    INFO_TEXT = [
        f"Subject ID: #{str(join_pos).zfill(4)}",
        user.created_at.strftime("Since %B %d, %Y"),
        f"Status: {user.status.name.upper()}",
        f"Activity:",
    ] + textwrap.wrap(user.activity.name if user.activity else "UNDETECTED", 25)

    for letter_range in range(len(WELCOME_TEXT)):
        im = image_array[-1].copy()
        draw = ImageDraw.Draw(im)
        draw.text((5+(welcome_font.size-5)*letter_range, 5), WELCOME_TEXT[letter_range], fill=text_color, font=welcome_font)
        image_array.append(im)
    
    # DELAY BEFORE WRITING THE NAME
    image_array += [image_array[-1] for _ in range(2)]

    for letter_range in range(len(NAME_TEXT)):
        im = image_array[-1].copy()
        draw = ImageDraw.Draw(im)
        draw.text((5+(name_font.size-10)*letter_range, 30), NAME_TEXT[letter_range], fill=text_color, font=name_font)
        image_array.append(im)

    # DELAY BEFORE WRITING THE INFO
    image_array += [image_array[-1] for _ in range(2)]

    for (index, line) in enumerate(INFO_TEXT):
        for letter_range in range(len(line)):
            im = image_array[-1].copy()
            draw = ImageDraw.Draw(im)
            draw.text((5+(info_font.size-5)*letter_range, 80+20*index), line[letter_range], fill=text_color, font=info_font)
            image_array.append(im)

    # DELAY BEFORE DRAWING THE IMAGE
    image_array += [image_array[-1] for _ in range(2)]


    brightness = brightness_level(Image.open(BytesIO(user_avatar)))
    ascii = ascii_art(BytesIO(user_avatar), more_levels=brightness>170)

    if not ascii: return

    ascii_len = len(ascii)*ascii_font.size

    ascii_image = Image.new('RGB', (ascii_len, ascii_len), (0,0,0))
    draw = ImageDraw.Draw(ascii_image)

    for (index, line) in enumerate(ascii):
        im = ascii_image.copy()
        draw = ImageDraw.Draw(im)
        # draw.text((L_MARGIN, T_MARGIN+ascii_font.size*index), line, fill=text_color, font=ascii_font)
        draw.text((0, ascii_font.size*index), line, fill=text_color, font=ascii_font)
        ascii_image = im
        im = image_array[-1].copy()
        im.paste(ascii_image.resize((250,250)), (350, 0))

        image_array.append(im)

    img = BytesIO()
    canvas.save(img, "GIF", save_all=True, append_images=image_array[1:], duration=50)
    img.seek(0)

    return img

class WelcomeBanner(commands.Cog):
    def __init__(self, bot: commands.Bot):
        self.bot = bot
    
    @commands.Cog.listener()
    async def on_member_join(self, member: disnake.Member):
        avatar = await member.display_avatar.read()

        # Do it like this because the welcome image might take some time to make, and the bot would freeze otherwize.
        welcome_image = await self.bot.loop.run_in_executor(None, lambda: create_welcome(member, avatar, member.guild.member_count))
        
        await member.guild.text_channels[0].send(file=disnake.File(welcome_image, "welcome.gif"))