ThreeHeadControls.js

if (typeof(JEEFACEFILTERAPI)==='undefined'){
	throw new Error('Cannot found JEEFACEFILTERAPI. Was jeelizFaceFilter.js included before this script ?');
} 

if (typeof(HeadControls)==='undefined'){
	throw new Error('Cannot found HeadControls. helpers/HeadControls.js included before this script ?');
}

if (typeof(THREE)==='undefined'){
	throw new Error('Cannot found THREE.JS');
}

THREE.HeadControls = function ( threeCamera, canvasId, NNCpath ) {
	this.enableZoom=true;
	this.sensibilityZ=1;
	this.sensibilityRotateX=0.001;
	this.sensibilityRotateY=0.001;
	
	threeCamera.rotation.order='YXZ';
	
	var that=this;
    function callbackMove(mv){
	  if (that.enableZoom && mv.dZ!==0) { //move head forward/backward
	  	threeCamera.translateZ(-mv.dZ*that.sensibilityZ);
  	  }
  	  var rotationNeedsUpdate=false;
  	  if (mv.dRx!==0) { //turn head up-down
  	    threeCamera.rotation.x+=-mv.dRx*that.sensibilityRotateX;
  	  }
  	  if (mv.dRy!==0) { //turn head left-right
  	    threeCamera.rotation.y+=mv.dRy*that.sensibilityRotateY;
  	  }
  	}

	HeadControls.init({
	    canvasId: canvasId,
	    callbackMove: callbackMove, //will be explained later...
	    callbackReady: function(errCode){
	      if (errCode){
	        console.log('ERROR : THREE.HeadControls NOT READY. errCode =', errCode);
	      } else {
	        console.log('INFO : THREE.HeadControls ARE READY :)');
	        HeadControls.toggle(true);
	      }
	    },
	    NNCpath: NNCpath,
	    animateDelay: 2 //avoid DOM lags
	}); //end HeadControls.init params
}