function Label (x = 0, y = 0) {

    this.x = x
    this.y = y
    this._text=""
    this._fillStyle ="#ffffff"
    this._textAlign ="left"
    this._font ="Helvetica"
    this._fontSize="30px"
    this._baseLine ="middle"
    this._name=""
    this._globalAlpha = 1;
    this.visible = true
  }

Label.prototype={
  set name(tex) {
    this._name = tex;
  },

  get name() {
    return this._name;
  },

  set text(tex) {
    this._text = tex;
  },

  get text() {
    return this._text;
  },

  set fillStyle(tex) {
    this._fillStyle = tex;
  },

  get fillStyle() {
    return this._fillStyle;
  },

  set textAlign(tex) {
    this._textAlign = tex;
  },

  get textAlign() {
    return this._textAlign;
  },

  set font(tex) {
    this._font = tex;
  },

  get font() {
    return this._font;
  },

  set fontSize(tex) {
    this._fontSize = tex;
  },

  get fontSize() {
    return this._fontSize;
  },
  set baseLine(tex) {
    this._baseLine = tex;
  },

  get baseLine() {
    return this._baseLine;
  },
  get globalAlpha() {
    return this._globalAlpha;
  },

  set globalAlpha(tex) {
    this._globalAlpha = tex;
  },
}

Label.prototype.position = function(x,y){

  this.x = x;
  this.y = y;

}
  /**
   * 将文字绘制在canvas上
   */
Label.prototype.drawToCanvas=function(ctx){
  if (!this.visible)
    return
  ctx.globalAlpha = this.globalAlpha;
  ctx.fillStyle = this.fillStyle;
  ctx.textAlign = this.textAlign;
  ctx.baseLine = this.baseLine;
  ctx.font = `${this.fontSize} ${this.font}`;
  ctx.fillText(this.text, this.x, this.y);
}

module.exports.Label = Label;