@gameroom/kit/src/lib/Color.js

Node kit for the Gameroom API

module.exports = class Color extends String {
  constructor(data) {
    if (!data) {
      super(data)
      return Color.random()
    }
    if (data instanceof Color) {
    } else if (data instanceof Object && data.r >= 0 && data.r <= 255 && data.g >= 0 && data.g <= 255 && data.b >= 0 && data.b <= 255) {
      data = `#${data.r.toString(16).padStart(2, 0)}${data.g.toString(16).padStart(2, 0)}${data.b.toString(16).padStart(2, 0)}`
    } else if (typeof data !== 'string') {
      throw new Error(`invalid Color data: ${data}`)
    } else if (!data.startsWith('#') || (data.length !== 7 && data.length !== 4)) {
      throw new Error(`invalid Color data: ${data}`)
    }
    super(data)
  }
  static random() {
    return new Color(`#${((Math.random() * (1 << 24)) | 0).toString(16).padStart(6, 0)}`)
  }
  toRGB() {
    const str = typeof this === 'object' ? this.toString() : this
    const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(str)
    return result
      ? {
          r: parseInt(result[1], 16),
          g: parseInt(result[2], 16),
          b: parseInt(result[3], 16)
        }
      : null
  }
  toRGBString() {
    const object = this.toRGB()
    return `rgb(${object.r}, ${object.g}, ${object.b})`
  }
  toString() {
    return Object.keys(this)
      .sort((a, b) => (parseInt(a, 10) < parseInt(b, 10) ? -1 : 1))
      .reduce((a, i) => (a += this[i]), '')
  }
}