app.py

# -*- coding: utf-8 -*-
"""MtGPT2

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/1HMq9Cp_jhqc9HlUipLXi8SC1mHQhSgGn
"""

#@title Setup + Download Model
# Install and load dependencies
import os

os.system("python3 -m pip install pytorch-lightning==1.7.0 aitextgen")

import sys
from jinja2 import Template
from aitextgen import aitextgen

try:
    from google.colab import files
except ImportError:
    pass

# Download and load the model. Set to_gpu=False if running on a CPU.
ai = aitextgen(model="minimaxir/magic-the-gathering", to_gpu=False)

# This template is similar to Scryfall card formatting
TEMPLATE = Template(
    """{{ c.name }}{% if c.manaCost %} {{ c.manaCost }}{% endif %}
{{ c.type }}
{{ c.text }}{% if c.power %}
{{ c.power }}/{{ c.toughness }}{% endif %}{% if c.loyalty %}
Loyalty: {{ c.loyalty }}{% endif %}"""
)

def render_card(card_dict):
    card = TEMPLATE.render(c=card_dict)
    if card_dict["name"]:
        card = card.replace("~", card_dict["name"])
    return card

prompt="\u003C|type|>Creature - Human \u003C|name|>Rezo the Destroyer of Politics \u003C|manaCost|> 2 {B/G}" #@param {type:"string"}
temperature = 0.7 #@param {type:"slider", min:0.1, max:1.2, step:0.1}
to_file = False #@param {type:"boolean"}

n = 100 if to_file else 8

cards = ai.generate(n=n,
                    schema=True,
                    prompt=prompt,
                    temperature=temperature,
                    return_as_list=True)

cards = list(map(render_card, cards))

if to_file:
  file_path = "cards.txt"
  with open(file_path, "w", encoding="utf-8") as f:
    for card in cards:
      f.write("{}\n{}".format(card, "=" * 20 + "\n"))
  if "google.colab" in sys.modules:
    files.download(file_path)
else:
  print(("\n" + "=" * 20 + "\n").join(cards))

def generate_cards(
    n_cards: int = 8,
    temperature: float = 0.75,
    name: str = "",
    manaCost: str = "",
    type: str = "",
    text: str = "",
    power: str = "",
    toughness: str = "",
    loyalty: str = ""
):
    #ensure n_cards is never 0 or negative
    n_cards = int(n_cards)
    if n_cards < 1:
        n_cards = 1


    #change manaCost from Format:
    # 2UG
    #to:
    #{2}{U}{G}

    manaCost_str = ""

    for char in manaCost:
        manaCost_str += "{"
        manaCost_str += char
        manaCost_str += "}"




    prompt_str = ""

    token_dict = {
        "<|name|>": name,
        "<|manaCost|>": manaCost_str,
        "<|type|>": type,
        "<|text|>": text,
        "<|power|>": power,
        "<|toughness|>": toughness,
        "<|loyalty|>": loyalty
    }

    # Convert the token_dict into a formatted prompt string
    for token, value in token_dict.items():
        if value:
            prompt_str += f"{token}{value}"

    # Generate the cards using the prompt string and other parameters
    cards = ai.generate(
        n=n_cards,
        schema=True,
        prompt=prompt_str,
        temperature=temperature,
        return_as_list=True
    )

    cards = list(map(render_card, cards))

    out_str = "\n=====\n".join(cards)

    replacements = {
        "{G}": "🌲",
        "{U}": "🌊",
        "{R}": "🔥",
        "{B}": "💀",
        "{W}": "☀️",
        "{T}": "↩️",
        #"{1}": "(1)",
        #"{2}": "(2)",
        #"{3}": "(3)",
        #"{4}": "(4)",
        #"{5}": "(5)",
        #"{6}": "(6)",
        #"{7}": "(7)",
        #"{8}": "(8)",
        #"{9}": "(9)",
    }

    for key, value in replacements.items():
      out_str = out_str.replace(key, value)


    return out_str

# Commented out IPython magic to ensure Python compatibility.
# %pip install gradio
import gradio as gr

iface = gr.Interface(
    fn = generate_cards,
    inputs=[
        gr.Slider(minimum = 2, maximum=16, step=1, value=8),
        gr.Slider(minimum = 0.1, maximum=1.5, step=0.01, value=0.75),
        gr.Textbox(),
        gr.Textbox(),
        gr.Textbox(),
        gr.Textbox(),
        gr.Textbox(),
        gr.Textbox(),
        gr.Textbox(),
    ],
    outputs=gr.Textbox(),
    title = "GPT-2 Powered MTG Card Generator",
    description = "Enter Manacost as '2UG' for 2 colorless + Blue + Green mana. \n\n Temperature is recomended between 0.4 and 0.9. Anything above 1 will lead to random Chaos and very low values will just be boring."
)
iface.launch()