moving coord update out of draw so it can happen without draw defined

Author: lauren mccarthy

lib/p5.js

@@ -200,13 +200,13 @@ var core = function (require, shim, constants) {
             f.call(this);
           });
           userDraw();
-          this._updatePMouseCoords();
-          this._updatePTouchCoords();
           this._registeredMethods.post.forEach(function (f) {
             f.call(this);
           });
           this.pop();
         }
+        this._updatePMouseCoords();
+        this._updatePTouchCoords();
       }.bind(this);
       this._runFrames = function () {
         if (this._updateInterval) {