var DragComponent = {}

DragComponent.children = [];

DragComponent.add = function(object) {
    object.dragging     = false;
    object.dragFriction = 0.0;
    object.dragForce    = 0;
    object.dragDirX     = 0;
    object.dragDirY     = 0;
    object.dragAllowX   = true;
    object.dragAllowY   = true;

    DragComponent.children.push(object);
}

DragComponent.remove = function(object) {
    var index = DragComponent.children.indexOf(object);
    if (index > -1) {
        DragComponent.children.splice(index, 1);
    }
}