From 6dc1c26a85496ded8b3302077c36240a34513fee Mon Sep 17 00:00:00 2001
From: ChomeNS <95471003+chomens@users.noreply.github.com>
Date: Thu, 8 Jan 2026 17:25:14 +0700
Subject: [PATCH] fix: 1000 years old core issue fixed with simple math
 function (hopefully)

---
 .../java/land/chipmunk/chipmunkmod/modules/CommandCore.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/land/chipmunk/chipmunkmod/modules/CommandCore.java b/src/main/java/land/chipmunk/chipmunkmod/modules/CommandCore.java
index 86ed3a7..06cdba3 100644
--- a/src/main/java/land/chipmunk/chipmunkmod/modules/CommandCore.java
+++ b/src/main/java/land/chipmunk/chipmunkmod/modules/CommandCore.java
@@ -181,7 +181,7 @@ public class CommandCore implements Listener {
         if (world == null || noPos == null) return;
 
         // also delete the old core
-        if (withPos != null) {
+        if (withPos != null && !isSingleBlock) {
             pendingCommands.add(
                     String.format(
                             "fill %d %d %d %d %d %d air",
@@ -246,7 +246,7 @@ public class CommandCore implements Listener {
         if (player == null || connection == null) return;
 
         final int distanceSquared = player.chunkPosition().distanceSquared(new ChunkPos(origin));
-        final int distance = (int) Math.sqrt(distanceSquared);
+        final int distance = (int) Math.sqrt(Math.abs(distanceSquared));
 
         final int simulationDistance = connection.getLevel().getServerSimulationDistance();