--- a/net/minecraft/network/protocol/game/VecDeltaCodec.java
+++ b/net/minecraft/network/protocol/game/VecDeltaCodec.java
@@ -5,16 +_,16 @@
 
 public class VecDeltaCodec {
     private static final double TRUNCATION_STEPS = 4096.0;
-    private Vec3 base = Vec3.ZERO;
+    public Vec3 base = Vec3.ZERO; // Paper
 
     @VisibleForTesting
     static long encode(double value) {
-        return Math.round(value * 4096.0);
+        return Math.round(value * 4096.0); // Paper - Fix MC-4; diff on change
     }
 
     @VisibleForTesting
     static double decode(long value) {
-        return value / 4096.0;
+        return value / 4096.0; // Paper - Fix MC-4; diff on change
     }
 
     public Vec3 decode(long x, long y, long z) {
