JavaScript & jQuery; how to do snapping drag and drop

Question

I am looking for advice from all you wonderful people on the best way to do snapping drag and drop.

As part of a simple board game I am currently coding in JS (using jQu

Answer 1

Hope this will help you, this is for Drag & Drop with snap in jQuery

var snap = 10; /* the value of the snap in pixels */
var l,t,xInit,yInit,x,y;
$(document).mousemove(function(e) {
  x = e.pageX;
  y = e.pageY;
  drag(snap);
});

$('#obj').mousedown(function(e){
  l=$('#obj').position().left;
  t=$('#obj').position().top;
  xInit = e.pageX;
  yInit = e.pageY;
})


function drag(snap){
    w=$('#obj').width();
    h=$('#obj').height();
    var left = l+x-xInit;
    var top = t+y-yInit;
  if(!snap==0){
    left = (left/snap).toFixed()*snap;
    top = (top/snap).toFixed()*snap;
    $('#obj').css('left',left);
    $('#obj').css('top',top);
  }else{
    $('#obj').css('left',left);
    $('#obj').css('top',top);
  }
}