fontise

#!/usr/bin/env node

'use strict';

const fs = require('fs');
const path = require('path');
const cp = require('child_process');

const setup = [
  { height: 56, blockWidth: 8,  extra: 2, chars: "0123456789:.! " },
  { height: 49, blockWidth: 7,  extra: 2, chars: "0123456789:.! " },
  { height: 42, blockWidth: 6,  extra: 1, chars: "0123456789:.! " },
  { height: 35, blockWidth: 5,  extra: 2, chars: "0123456789:.! " },
  { height: 28, blockWidth: 4,  extra: 1, chars: "0123456789:.! " },
  { height: 21, blockWidth: 3,  extra: 1, chars: "0123456789:.! " },
  { height: 14, blockWidth: 2,  extra: 1, chars: "0123456789:.! " },
  { height: 7,  blockWidth: 1.001,  extra: 1, chars: "0123456789:.! " },
  { height: 14, blockWidth: 1,  extra: 0, chars: "abcdefghijklmnopqrstuvwxyz/CSGFDHTWA! " },
];

const refWidth = {
  1: ':!.',
  3: 'il',
  4: '1234567890 jrt',
  5: 'f',
  6: 'acksvxyz/',
  7: 'bdehnopqgu',
  8: '',
  9: 'w',
  11: 'm',
  17: 'CSGFDHTWA'
};

const charRef = {};
Object.keys(refWidth).forEach(m => refWidth[m].split('').forEach(l => charRef[l] = m));


const root = ['.', 'resources', 'font'];

let osY = 0;
setup.forEach(setting => {
  const fName = path.join.apply(path, root.concat(`hooky_${setting.blockWidth}${setting.inverted? 'i':''}.fnt`));
  const out = fs.createWriteStream(fName);
  out.write(`common lineHeight=${setting.height} base=${setting.height} pages=1
page id=0 file="hooky.png"
chars count=${setting.chars.length}
`, () => {
    let osX = 0;
    const lines = setting.chars.split('').map(c => {
      let w = charRef[c] * setting.blockWidth | 0;
      let l = `char id=${c.charCodeAt(0)} `;
      l += `x=${osX} y=${osY} `;
      l += `width=${w} `;
      l += `height=${setting.height} `;
      l += `xoffset=${setting.extra/2|0} yoffset=0 xadvance=${w + setting.extra} page=0 chnl=1`;
      osX += charRef[c] * setting.blockWidth | 0;
      return l;
    });
    lines.push("");
    out.end(lines.join("\r\n"));
    osY += setting.height;
  });
});