text: var CONTEXT_2D = "2d";
  var ERROR_CANVAS_NOT_SUPPORTED = "Your browser does not support the canvas element.";
  var CANVAS_OBJECT_RENDER_METHOD = "draw";
  var WORLD_FRAME_RATE = 1 / 60;
  var VELOCITY_CYCLES_PRE_FRAME = 10;
  var POSITION_CYCLES_PRE_FRAME = 10;