diff --git a/settings.gradle.kts b/settings.gradle.kts
index 0bf4d08..eb96a77 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -3,7 +3,7 @@ rootProject.name = "AFKDetector"
 dependencyResolutionManagement {
     repositories {
         mavenCentral()
-        maven("https://dev.alttd.com/snapshots") // Altitude - Galaxy
+        maven("https://repo.destro.xyz/snapshots") // Altitude - Galaxy
     }
     repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
 }
diff --git a/src/main/java/com/alttd/afkdectector/AFKCheckTimer.java b/src/main/java/com/alttd/afkdectector/AFKCheckTimer.java
index e5551ad..bc2b195 100755
--- a/src/main/java/com/alttd/afkdectector/AFKCheckTimer.java
+++ b/src/main/java/com/alttd/afkdectector/AFKCheckTimer.java
@@ -10,6 +10,8 @@ import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.NumberConversions;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
 import java.util.concurrent.TimeUnit;
@@ -58,7 +60,21 @@ public class AFKCheckTimer extends BukkitRunnable {
     }
 
     private boolean playerMovedOutOfSphere(Player player, Location pastLocation) {
-        return player.getLocation().distanceSquared(pastLocation) > Config.RADIUS * Config.RADIUS;
+        return TwoDDistanceSquared(player.getLocation(), pastLocation) > Config.RADIUS * Config.RADIUS;
+//        return player.getLocation().distanceSquared(pastLocation) > Config.RADIUS * Config.RADIUS;
+    }
+
+    private double TwoDDistanceSquared(@NotNull Location o1, @NotNull Location o2) {
+        if (o2.getWorld() != null && o1.getWorld() != null) {
+            if (o2.getWorld() != o1.getWorld()) {
+                String var10002 = o1.getWorld().getName();
+                throw new IllegalArgumentException("Cannot measure distance between " + var10002 + " and " + o2.getWorld().getName());
+            } else {
+                return NumberConversions.square(o1.getX() - o2.getX()) + NumberConversions.square(o1.getZ() - o2.getZ());
+            }
+        } else {
+            throw new IllegalArgumentException("Cannot measure distance to a null world");
+        }
     }
 
     private boolean playerHeadMoved(Location playerLocation, Location pastLocation) {