From d6c1b29d0ac965b19dc7eb29aa0ffd7b13769020 Mon Sep 17 00:00:00 2001
From: Florian Egger <flo.egger@icloud.com>
Date: Mon, 20 Apr 2026 12:13:32 +0200
Subject: [PATCH] Only move minable blocks during rearrange

Change condition from != 0 to > 0 in World::rearrange so only
positive (minable) blocks are collected; effect/negative cells remain in
place
---
 src/World.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/World.cpp b/src/World.cpp
index d3312f1..789a2f8 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -131,7 +131,7 @@ void World::rearrange () {
             std::vector<int> positions;
 
             for ( int z = 0; z < _sizeZ; ++z ) {
-                if ( _grid[ x ][ y ][ z ] != 0 ) {
+                if ( _grid[ x ][ y ][ z ] > 0 ) {  // only minable blocks; effect cells stay in place
                     values.push_back ( _grid[ x ][ y ][ z ] );
                     positions.push_back ( z );
                 }