Greg Militello wrote:
What do I have done? Not a ton. I got stuck. Which is why I
need you all.
What is my problem(s)? Simply, events. I think I need to use a
lot of event listeners to handle this well, but there does not appear
to be a ton of doc on draggable/dropable events, and how to use them. I
Hi Greg
I've been doing something similar - not chess unfortunately - but
something which required my code to know when a draggable was clicked.
First of all I tried to hack into the dragdrop code to do this - but
I've scrapped that now.
Instead I'm simply registering my draggable objects into a a new class,
and registering on click events to the draggable elements, pseudo code
below:
chess = Class.create();
chess.prototype = {
initialize: function() {
this.pieces = new Array(); //array of draggable chess pieces
(objects)
},
addPiece: function( draggableObject ){
var found = false;
//check if the draggable has not yet been registered:
this.pieces.each(function(piece) {
if(draggableObject == piece){
found = true;
}
}
if(found == false){
this.pieces.push( draggableObject );
this.eventMouseDown = this.activate.bindAsEventListener(this);
Event.observe(draggableObject.element, "mousedown",
this.eventMouseDown);
}
},
activate: function(event){
var el = Event.element( event );
alert('you clicked on a chess piece!');
}
}
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