From 85419a3e2d44aa72aa54a4a310ece72a53be45f0 Mon Sep 17 00:00:00 2001
From: Philip Rosedale <philip@highfidelity.io>
Date: Fri, 21 Nov 2014 01:04:52 -0600
Subject: [PATCH] limit max distance of movement, don't pull to 3P unless going
 back

---
 examples/headMove.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/examples/headMove.js b/examples/headMove.js
index 56f42984e4..df5c858b46 100644
--- a/examples/headMove.js
+++ b/examples/headMove.js
@@ -89,6 +89,7 @@ var WARP_SMOOTHING = 0.90;
 var WARP_START_TIME = 0.25;
 var WARP_START_DISTANCE = 2.5;
 var WARP_SENSITIVITY = 0.15;
+var MAX_WARP_DISTANCE = 25.0;
 
 var fixedHeight = true;
 
@@ -105,7 +106,7 @@ function updateWarp() {
     willMove = (keyDownTime > WARP_START_TIME);
 
     if (willMove) {
-        var distance = Math.exp(deltaPitch * WARP_SENSITIVITY) * WARP_START_DISTANCE;
+        var distance = Math.min(Math.exp(deltaPitch * WARP_SENSITIVITY) * WARP_START_DISTANCE, MAX_WARP_DISTANCE);
         var warpDirection = Vec3.normalize({ x: look.x, y: (fixedHeight ? 0 : look.y), z: look.z });
         var startPosition = (watchAvatar ? Camera.getPosition(): MyAvatar.getEyePosition());
         warpPosition = Vec3.mix(Vec3.sum(startPosition, Vec3.multiply(warpDirection, distance)), warpPosition, WARP_SMOOTHING);
@@ -113,7 +114,7 @@ function updateWarp() {
 
     var cameraPosition;
 
-    if (!watchAvatar && willMove) {
+    if (!watchAvatar && willMove && (distance < WARP_START_DISTANCE * 0.5)) {
         pullBack();
         watchAvatar = true;
     }