Plaskでunderscore.js使ってみるテスト

_app.js

//npm install underscore
var plask = require('plask');
    _ = require('underscore');
    
plask.simpleWindow({
  init: function() {
    this.framerate(60);
    this.paint.setFill();  // Fill is the default, so this is just for clarity.
    this.paint.setAntiAlias(true);
  },

  draw: function() {
    var canvas = this.canvas, paint = this.paint;
    canvas.clear(100, 130, 300, 255);
    
    _(100).times(function(num){
        paint.setColor(80, Math.floor((Math.sin(this.frametime) + 1)*127), Math.floor((Math.sin(num) + 1)*127), 255);
        canvas.drawCircle(paint,  Math.sin(this.frametime + num) * 200 + 200, num * 4,  20 );
        },
        this);
  }
});