matoran-alphabet/lib/characters.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Characters = void 0;

/**
 * Base class for defining characters and their elements.
 */
class Characters extends Object {
  /**
   * Round values to specified decimal places.
   */

  /**
   * The stroke size of the lines.
   */

  /**
   * Character and their elements encode bits.
   */

  /**
   * Character elements.
   */

  /**
   * Margin values.
   */

  /**
   * Characters constructor.
   */
  constructor() {
    super();
    this.precision = 1;
    this.stroke = void 0;
    this._characters = {
      /* eslint-disable quote-props, key-spacing */
      ' ': 0b00000000000000000000000000000000000000000,
      'A': 0b00000000000000000000000000000000000000101,
      'B': 0b00000000000000000000000000000000000001101,
      'C': 0b00000000000000000000000000000000000010001,
      'D': 0b00000000000000000000000000000001000010001,
      'E': 0b00000000000000000000000000110000000000001,
      'F': 0b00000000000000000000000000010000000000001,
      'G': 0b00000000000000000000000100000001000000001,
      'H': 0b00000000000000000000000000001100000001101,
      'I': 0b00000000000000000000000000000001000000001,
      'J': 0b00000000000000000000000000000001100000001,
      'K': 0b00000000000000000001101000000000000000001,
      'L': 0b00000000000000000000000000000001010000001,
      'M': 0b00000000000000000000000000001100000000001,
      'N': 0b00000000000000000000000001000000000000001,
      'O': 0b00000000000000000000000000000000000000001,
      'P': 0b00000000000000000000000000000001001000001,
      'Q': 0b00000000000000000000000000000000010000001,
      'R': 0b00000000000000000000000100000001001000001,
      'S': 0b00000000000000000000000000000000101000001,
      'T': 0b00000000000000000000010000000010000000001,
      'U': 0b00000000000000000000000000000000000001001,
      'V': 0b00000000000000000000000011000000000001001,
      'W': 0b00000000000000000000000011000000000110001,
      'X': 0b00000000000000000000000011000000000000001,
      'Y': 0b00000000000000000000100001000000000000001,
      'Z': 0b00000000000000000000000010000000000000001,
      '0': 0b00000000000000000000000000000000000000011,
      '1': 0b00000000000000000100000000000000000000011,
      '2': 0b00000000000000001100000000000000000000011,
      '3': 0b00000000000011000100000000000000000000011,
      '4': 0b00000000000000111100000000000000000000011,
      '5': 0b00000000111100000100000000000000000000011,
      '6': 0b00000000000000000010000000000000000000011,
      '7': 0b00000001000000000010000000000000000000011,
      '8': 0b00000011000000000010000000000000000000011,
      '9': 0b00001101000000000010000000000000000000011,
      '.': 0b00000000000000000000000000000000000000010,
      '-': 0b00110000000000000000000000000000000000000,
      '\u00C6': 0b11000000000000000000000000000011000000001,
      '\u00D8': 0b00000000000000000000000000100001000000001,
      '\u00C5': 0b00000000000000000000000000100000000001001
      /* eslint-enable quote-props, key-spacing */

    };
    this._elements = void 0;
    this.margin = {
      left: 0,
      right: 0,
      top: 0,
      bottom: 0
    };
  }
  /**
   * Character width, with stroke.
   *
   * @returns Width size.
   */


  /**
   * Character center X position, with margins.
   *
   * @returns X position.
   */
  get centerX() {
    return this.margin.left + (this.width - (this.margin.left + this.margin.right)) * 0.5;
  }
  /**
   * Character center Y position, with margins.
   *
   * @returns Y position.
   */


  get centerY() {
    return this.margin.top + (this.height - (this.margin.top + this.margin.bottom)) * 0.5;
  }
  /**
   * Total width, with margin, rounded up to the next pixel.
   *
   * @returns Total width.
   */


  get width() {
    return Math.ceil(this.margin.left + this.characterWidth + this.margin.right);
  }
  /**
   * Total height, with margin, rounded up to the next pixel.
   *
   * @returns Total height.
   */


  get height() {
    return Math.ceil(this.margin.top + this.characterHeight + this.margin.bottom);
  }
  /**
   * Round value to the configured precision.
   *
   * @param n Value to be rounded.
   * @returns Rounded value.
   */


  round(n) {
    const x = Math.pow(10, this.precision);
    return x ? Math.floor(n * x) / x : n;
  }
  /**
   * Get character encode bits.
   *
   * @param character The character to encode.
   * @returns Encode bits or null.
   */


  getCharacter(character) {
    const c = character.toUpperCase();
    const {
      _characters
    } = this;
    return Object.prototype.hasOwnProperty.call(_characters, c) ? _characters[c] : null;
  }
  /**
   * Get character elements for encode bits.
   * Each length will be 3 (circle), 4 (line), or >4 (path).
   * Circle: `[r, cx, cy]`
   * Line: `[x1, y1, x2, y2]`
   * Path: `[x1, y1, x2, y2, ...]` (NaN ending closes path)
   * Values are padded and made absolute.
   *
   * @param bits Encode bits.
   * @returns Element coordinates or null.
   */


  getElements(bits) {
    const {
      _elements
    } = this;
    const c = [this.centerX, this.centerY];
    const r = [];

    for (let i = 0; bits >= 1; bits /= 2, i++) {
      // eslint-disable-next-line no-bitwise
      if (bits & 1) {
        const e = _elements[i];
        r.push(e.map((v, i) => this.round(i === 2 && e.length === 3 ? v : v + c[i % 2])));
      }
    }

    return r;
  }
  /**
   * Get character elements for a character.
   *
   * @param character The character to encode.
   * @returns Element coordinates or null.
   */


  getCharacterElements(character) {
    const bits = this.getCharacter(character);
    return bits === null ? null : this.getElements(bits);
  }

}

exports.Characters = Characters;
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