diff --git a/src/main/java/com/tvd12/gamebox/entity/MMOGridRoom.java b/src/main/java/com/tvd12/gamebox/entity/MMOGridRoom.java
index ca69a81..d07c479 100644
--- a/src/main/java/com/tvd12/gamebox/entity/MMOGridRoom.java
+++ b/src/main/java/com/tvd12/gamebox/entity/MMOGridRoom.java
@@ -111,10 +111,7 @@ private void handleNeighboringCells(
         }
     }
 
-    public void addNearbyPlayersInCell(MMOPlayer currentPlayer, Cell cell) {
-        if (cell == null || cell.getNumberOfPlayers() == 0) {
-            return;
-        }
+    private void addNearbyPlayersInCell(MMOPlayer currentPlayer, Cell cell) {
         for (MMOPlayer nearByPlayer : cell.players) {
             currentPlayer.addNearbyPlayer(nearByPlayer);
             nearByPlayer.addNearbyPlayer(currentPlayer);
@@ -220,9 +217,5 @@ public void addPlayer(MMOPlayer player) {
         public void removePlayer(MMOPlayer player) {
             players.remove(player);
         }
-        
-        public int getNumberOfPlayers() {
-            return players.size();
-        }
     }
 }
diff --git a/src/main/java/com/tvd12/gamebox/math/Bounds.java b/src/main/java/com/tvd12/gamebox/math/Bounds.java
index c111316..95a89ad 100644
--- a/src/main/java/com/tvd12/gamebox/math/Bounds.java
+++ b/src/main/java/com/tvd12/gamebox/math/Bounds.java
@@ -63,7 +63,7 @@ public boolean doesOverlap(Bounds other) {
     }
     
     public Bounds getOctant(int index) {
-        OcLocation ocLocation = Bounds.OcLocation.of(index);
+        OcLocation ocLocation = OcLocation.of(index);
         float midX = (leftBottomBack.x + rightTopFront.x) / 2;
         float midY = (leftBottomBack.y + rightTopFront.y) / 2;
         float midZ = (leftBottomBack.z + rightTopFront.z) / 2;
@@ -121,6 +121,7 @@ public String toString() {
     }
     
     private enum OcLocation {
+
         LEFT_BOTTOM_BACK(0),
         LEFT_BOTTOM_FRONT(1),
         LEFT_TOP_BACK(2),
diff --git a/src/main/java/com/tvd12/gamebox/math/Vec3.java b/src/main/java/com/tvd12/gamebox/math/Vec3.java
index c0961d7..c78bb3d 100644
--- a/src/main/java/com/tvd12/gamebox/math/Vec3.java
+++ b/src/main/java/com/tvd12/gamebox/math/Vec3.java
@@ -13,12 +13,12 @@ public class Vec3 {
     public float z;
 
     public static final Vec3 ZERO = new Vec3();
-    public static final Vec3 up = new Vec3(0.0f, 1f, 0.0f);
-    public static final Vec3 down = new Vec3(0.0f, -1f, 0.0f);
-    public static final Vec3 left = new Vec3(-1f, 0.0f, 0.0f);
-    public static final Vec3 right = new Vec3(1f, 0.0f, 0.0f);
-    public static final Vec3 forward = new Vec3(0.0f, 0.0f, 1f);
-    public static final Vec3 backward = new Vec3(0.0f, 0.0f, -1f);
+    public static final Vec3 UP = new Vec3(0.0f, 1f, 0.0f);
+    public static final Vec3 DOWN = new Vec3(0.0f, -1f, 0.0f);
+    public static final Vec3 LEFT = new Vec3(-1f, 0.0f, 0.0f);
+    public static final Vec3 RIGHT = new Vec3(1f, 0.0f, 0.0f);
+    public static final Vec3 FORWARD = new Vec3(0.0f, 0.0f, 1f);
+    public static final Vec3 BACKWARD = new Vec3(0.0f, 0.0f, -1f);
 
     public Vec3() {
         this(0.0f, 0.0f, 0.0f);