chomens-bot-js/plugins/draw.js

/* eslint-disable max-len */
const convert = require('color-convert');

function inject(bot) {
  function draw(data, info, prefix = {}) {
    const pixels = [];

    // Data Buffer -> RGB Array
    for (let i = 0; i < data.length; i += info.channels) {
      pixels.push([
        data[i + 0],
        data[i + 1],
        data[i + 2],
      ]);
    }

    const rows = [];

    // RGB Array -> Rows Array
    for (let i = 0; i < pixels.length; i += info.width) {
      const row = pixels.slice(i, i + info.width);

      rows.push(row);
    }

    const messages = [];

    for (const row of rows) {
      const message = [{...prefix, text: ''}];

      for (const rgb of row) {
        message.push({
          text: '⎮',
          color: `#${convert.rgb.hex(rgb)}`,
        });
      }

      messages.push(message);
    }

    for (const message of messages) bot.tellraw('@a', message);
  }

  bot.draw = draw;
}

module.exports = {inject};