cristiingineru/rabbit

"use strict";

System.register(['./eye.js', './mouth.js'], function(_export, _context) {

  var Eye, Mouth;
  function Face(ctx, window) {

    window = window || {requestAnimationFrame: function () {}};

    var mouth = new Mouth(ctx),
      eye1 = new Eye(ctx),
      eye2 = new Eye(ctx),
      newRafNeeded,
      animationInProgressId,
      shouldAnimate = function(opt) {
        return opt.mood === 'crazy';
      },
      clearCanvas = function(ctx) {
        if (ctx.canvas) ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
        else ctx.clearRect(0, 0, ctx.context.canvas.width, ctx.context.canvas.height);
      };

    this.draw = function (opt) {
      opt = Object.assign({
        x: 10,
        y: 10,
        width: 90,
        height: 100
      }, opt || {});
      newRafNeeded = shouldAnimate(opt);

      var step = function () {
        draw_core(opt);
        if (newRafNeeded) {
          animationInProgressId = window.requestAnimationFrame(step);
        }
      };
      step();

      return this;
    }

    var draw_core_state = {};

    var draw_core = function (opt) {

      clearCanvas(ctx);

      if (opt.side === 'left') {
        eye1.draw({side: 'left'});
      }
      else if (opt.side === 'right') {
        eye2.draw({side: 'right'});
      } else {

        var eye1YOffset = 0, eye2YOffset = 0;
        if (opt.mood === 'crazy') {
          if (draw_core_state.animationDirection === 'alpha') {
            draw_core_state.animationDistance += 0.5;
          } else if (draw_core_state.animationDirection === 'beta') {
            draw_core_state.animationDistance -= 0.5;
          } else {
            draw_core_state.animationDirection = 'alpha';
            draw_core_state.animationDistance = 0;
          }
          eye1YOffset = draw_core_state.animationDistance;
          eye2YOffset = -draw_core_state.animationDistance;
          if (draw_core_state.animationDistance ===  6) draw_core_state.animationDirection = 'beta';
          if (draw_core_state.animationDistance === -6) draw_core_state.animationDirection = 'alpha';
        }

        var scale = opt.width / opt.height;

        ctx.save();
        ctx.translate(opt.x + opt.width / 2, opt.y + opt.height / 2);
        ctx.scale(scale, 1);
        ctx.beginPath();
        ctx.arc(0, 0, opt.width / 2, 0, 2 * Math.PI);
        ctx.stroke();
        ctx.closePath();
        ctx.restore();

        mouth.draw({
          cx: opt.x + opt.width / 2,
          cy: opt.y + 10 * opt.height / 16,
          width: 7 * opt.width / 16
        });
        eye1.draw({
          cx: opt.x + 5 * opt.width / 16,
          cy: opt.y + 3 * opt.height / 8 + eye1YOffset,
          width: 2 * opt.width / 8,
          height: 2 * opt.height / 8,
          style: opt.mood === 'drunk' ? 'blurry' : undefined
        });
        eye2.draw({
          cx: opt.x + 11 * opt.width / 16,
          cy: opt.y + 3 * opt.height / 8 + eye2YOffset,
          width: 2 * opt.width / 8,
          height: 2 * opt.height / 8,
          style: opt.mood === 'drunk' ? 'blurry' : undefined
        });
      }
    }
  }

  _export('Face', Face);

  return {
    setters: [function (_eye) {
      Eye = _eye.Eye;
    }, function (_mouth) {
      Mouth = _mouth.Mouth;
    }],
    execute: function () { }
  };
});