events.js

// Events --------------------------------------------------------

window.addEventListener( 'keypress', function ( event ) {

	var key = event.keyCode;

	switch ( key ) {

		case 32:/*space bar*/ sceneSettings.pause = !sceneSettings.pause;
			break;

		case 65:/*A*/
		case 97:/*a*/ sceneSettings.enableGridHelper = !sceneSettings.enableGridHelper;
			break;

		case 83 :/*S*/
		case 115:/*s*/ sceneSettings.enableAxisHelper = !sceneSettings.enableAxisHelper;
			break;

	}

} );


$( function () {
	var timerID;
	$( window ).resize( function () {
		clearTimeout( timerID );
		timerID = setTimeout( function () {
			onWindowResize();
		}, 250 );
	} );
} );


function onWindowResize() {

	WIDTH = window.innerWidth;
	HEIGHT = window.innerHeight;

	pixelRatio = window.devicePixelRatio || 1;
	screenRatio = WIDTH / HEIGHT;

	camera.aspect = screenRatio;
	camera.updateProjectionMatrix();

	renderer.setSize( WIDTH, HEIGHT );
	renderer.setPixelRatio( pixelRatio );

}