From 64d616863f8c8e713255c72be29cbd11c347064c Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Thu, 13 Mar 2014 00:42:42 -0400
Subject: [PATCH] Made PonterlockControls example frame independent.

---
 examples/js/controls/PointerLockControls.js | 31 ++++++++++++---------
 examples/misc_controls_pointerlock.html     |  8 ++----
 2 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/examples/js/controls/PointerLockControls.js b/examples/js/controls/PointerLockControls.js
index 983d2415af..21a0bb776a 100644
--- a/examples/js/controls/PointerLockControls.js
+++ b/examples/js/controls/PointerLockControls.js
@@ -23,6 +23,8 @@ THREE.PointerLockControls = function ( camera ) {
 	var isOnObject = false;
 	var canJump = false;
 
+	var prevTime = performance.now();
+
 	var velocity = new THREE.Vector3();
 
 	var PI_2 = Math.PI / 2;
@@ -65,7 +67,7 @@ THREE.PointerLockControls = function ( camera ) {
 				break;
 
 			case 32: // space
-				if ( canJump === true ) velocity.y += 10;
+				if ( canJump === true ) velocity.y += 350;
 				canJump = false;
 				break;
 
@@ -139,22 +141,23 @@ THREE.PointerLockControls = function ( camera ) {
 
 	}();
 
-	this.update = function ( delta ) {
+	this.update = function () {
 
 		if ( scope.enabled === false ) return;
 
-		delta *= 0.1;
+		var time = performance.now();
+		var delta = ( time - prevTime ) / 1000;
 
-		velocity.x += ( - velocity.x ) * 0.08 * delta;
-		velocity.z += ( - velocity.z ) * 0.08 * delta;
+		velocity.x -= velocity.x * 10.0 * delta;
+		velocity.z -= velocity.z * 10.0 * delta;
 
-		velocity.y -= 0.25 * delta;
+		velocity.y -= 9.8 * 100.0 * delta; // 100.0 = mass
 
-		if ( moveForward ) velocity.z -= 0.12 * delta;
-		if ( moveBackward ) velocity.z += 0.12 * delta;
+		if ( moveForward ) velocity.z -= 400.0 * delta;
+		if ( moveBackward ) velocity.z += 400.0 * delta;
 
-		if ( moveLeft ) velocity.x -= 0.12 * delta;
-		if ( moveRight ) velocity.x += 0.12 * delta;
+		if ( moveLeft ) velocity.x -= 400.0 * delta;
+		if ( moveRight ) velocity.x += 400.0 * delta;
 
 		if ( isOnObject === true ) {
 
@@ -162,9 +165,9 @@ THREE.PointerLockControls = function ( camera ) {
 
 		}
 
-		yawObject.translateX( velocity.x );
-		yawObject.translateY( velocity.y ); 
-		yawObject.translateZ( velocity.z );
+		yawObject.translateX( velocity.x * delta );
+		yawObject.translateY( velocity.y * delta ); 
+		yawObject.translateZ( velocity.z * delta );
 
 		if ( yawObject.position.y < 10 ) {
 
@@ -175,6 +178,8 @@ THREE.PointerLockControls = function ( camera ) {
 
 		}
 
+		prevTime = time;
+
 	};
 
 };
diff --git a/examples/misc_controls_pointerlock.html b/examples/misc_controls_pointerlock.html
index bfa2b17dca..fe029a5f0c 100644
--- a/examples/misc_controls_pointerlock.html
+++ b/examples/misc_controls_pointerlock.html
@@ -75,7 +75,7 @@
 
 			var camera, scene, renderer;
 			var geometry, material, mesh;
-			var controls,time = Date.now();
+			var controls;
 
 			var objects = [];
 
@@ -279,8 +279,6 @@
 
 				requestAnimationFrame( animate );
 
-				//
-
 				controls.isOnObject( false );
 
 				ray.ray.origin.copy( controls.getObject().position );
@@ -300,12 +298,10 @@
 
 				}
 
-				controls.update( Date.now() - time );
+				controls.update();
 
 				renderer.render( scene, camera );
 
-				time = Date.now();
-
 			}
 
 		</script>
-- 
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