soma.js/demos/clock-coffeescript/js/app/views/clocks/analog/needle-hours.js

soma.js is a javascript framework created to build scalable and maintainable applications.

// Generated by CoffeeScript 1.6.2
(function() {
  (function(clock) {
    "use strict";    return clock.NeedleHours = (function() {
      function NeedleHours() {
        this.seconds = 0;
        this.minutes = 0;
        this.hours = 0;
        this.radius = 0;
        this.center = 0;
        this.size = 0;
      }

      NeedleHours.prototype.initialize = function(radius) {
        this.radius = radius;
        this.center = this.radius / 2;
        return this.size = this.center * 0.4;
      };

      NeedleHours.prototype.update = function(hours, minutes, seconds) {
        this.hours = hours;
        this.minutes = minutes;
        this.seconds = seconds;
      };

      NeedleHours.prototype.draw = function(context) {
        var theta, x, y;

        theta = 30 * Math.PI / 180;
        x = this.center + this.size * Math.cos(((this.hours + this.minutes / 60 + this.seconds / 3600) * theta) - Math.PI / 2);
        y = this.center + this.size * Math.sin(((this.hours + this.minutes / 60 + this.seconds / 3600) * theta) - Math.PI / 2);
        context.save();
        context.lineWidth = 5;
        context.strokeStyle = '#015666';
        context.lineJoin = 'round';
        context.lineCap = 'round';
        context.beginPath();
        context.moveTo(x, y);
        context.lineTo(this.center, this.center);
        context.closePath();
        context.stroke();
        return context.restore();
      };

      NeedleHours.prototype.dispose = function() {};

      return NeedleHours;

    })();
  })(window.clock = window.clock || {});

}).call(this);