javascript - Animation of google markers on map load with timeout

Question

I would like to create a timeout on each google marker's DROP animation, but I think the closure code for the marker and the array item are conflicting. I do not know too much about closures and am getting a bit stuck on the problem.

I can get them all falling at once.

falling markers code jsfiddle

but I would like to have a timeout after every marker of 100 ms.

This is what I thought would work

...

//Loop through nc array
for (var i = 0; i < nc.length; i++) {

   //Create 100 ms rule on marker creation
   setTimeout(function () {

     //Create marker
     var marker = new google.maps.Marker({
       position: nc[i],
       map: map,
       title: "tron" + i,
       animation: google.maps.Animation.DROP,
     });

    }, i * 100);

   //Creating the closure
   (function (i, marker) {

     //Add infowindow
     google.maps.event.addListener(marker, 'click', function () {
         if (!infowindow) {
            infowindow = new google.maps.InfoWindow();
         }
         //Setting content of info window
         infowindow.setContent('<h2>Tron lives | ' + i + '</h2>');
             infowindow.open(map, marker);
         });
      })(i, marker);
    };

...

But that does not work. I figure that once the markers are created in the loop one would set the timeout on that creation process which would create the falling rain marker effect.

Answer 1

Had the same thought as @Bryan Weaver. Took your fiddle and modified it a bit to create the markers in a function, and iteratively set the timeout. Ended up with what follows, and it successfully does your "rain" effect.

    var addmarker = function(i) {
        //Create marker
            var marker = new google.maps.Marker({
                position: nc[i],
                map: map,
                title: "tron" + i,
                animation: google.maps.Animation.DROP,
            });

            //Creating the closure
            (function (i, marker) {   

                //Add infowindow
                google.maps.event.addListener(marker, 'click', function () {
                    if (!infowindow) {
                        infowindow = new google.maps.InfoWindow();
                    }
                    //Setting content of info window
                    infowindow.setContent('<h2>Tron lives | ' + i + '</h2>');

                    infowindow.open(map, marker);
                });
            })(i, marker); 
        if(i++ < nc.length) {
            setTimeout(function() {addmarker(i)}, 100);
        }

    }
    addmarker(0);             

Here's the full fiddle: http://jsfiddle.net/LzJ8B/