var Class = require('../../utils/Class'); 
var Button = new Class({ 
initialize: function Button(pad, index){ 
this.pad = pad; 
this.events = pad.manager; 
this.index = index; 
this.value = 0; 
this.threshold = 1; 
this.pressed = false ; 
} 
,
update: function (data){ 
this.value = data.value; 
if (this.value >= this.threshold) { 
if (!this.pressed) { 
this.pressed = true ; 
this.events.emit('down', this.pad, this, this.value, data); 
} 
} 
 else if (this.pressed) { 
this.pressed = false ; 
this.events.emit('up', this.pad, this, this.value, data); 
} 
} 
}
); 
module.exports = Button;