From d9dc936113cdf6101662aeb06a0a687021feb439 Mon Sep 17 00:00:00 2001
From: Alexdoru <57050655+Alexdoru@users.noreply.github.com>
Date: Tue, 26 May 2026 16:37:41 +0200
Subject: [PATCH 1/2] reduce runtime allocations from arc lamp algorithm

---
 .../mods/galacticraft/core/tile/TileEntityArclamp.java       | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java b/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
index 5e8aa2c7ce..bde1d617fb 100644
--- a/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
+++ b/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
@@ -246,11 +246,14 @@ public void invalidate() {
         super.invalidate();
     }
 
+    // reuse set to avoid heavy allocation
+    private final IntOpenHashSet checked = new IntOpenHashSet();
+
     public void lightArea() {
         final Block breatheableAirID = GCBlocks.breatheableAir;
         final Block brightAir = GCBlocks.brightAir;
         final Block brightBreatheableAir = GCBlocks.brightBreatheableAir;
-        final IntSet checked = new IntOpenHashSet();
+        this.checked.clear();
         final int baseX = this.xCoord, baseY = this.yCoord, baseZ = this.zCoord;
 
         IntList currentLayer = new IntArrayList();

From 59a3547c36b04d06c91ffffb9b18adca09c6caaa Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Tue, 26 May 2026 16:48:47 +0200
Subject: [PATCH 2/2] Spotless apply for branch alex/arc-lamp for #140 (#141)

Co-authored-by: GitHub GTNH Actions <>
---
 .../mods/galacticraft/core/tile/TileEntityArclamp.java           | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java b/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
index bde1d617fb..3e57124752 100644
--- a/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
+++ b/src/main/java/micdoodle8/mods/galacticraft/core/tile/TileEntityArclamp.java
@@ -28,7 +28,6 @@
 import it.unimi.dsi.fastutil.ints.IntIterator;
 import it.unimi.dsi.fastutil.ints.IntList;
 import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
-import it.unimi.dsi.fastutil.ints.IntSet;
 import it.unimi.dsi.fastutil.longs.LongIterator;
 import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
 import it.unimi.dsi.fastutil.longs.LongSet;