1 files changed, 42 insertions, 0 deletions
diff --git a/patches/server/0412-Option-for-maximum-exp-value-when-merging-orbs.patch b/patches/server/0412-Option-for-maximum-exp-value-when-merging-orbs.patch
new file mode 100644
index 0000000000..4239e066f4
--- /dev/null
+++ b/patches/server/0412-Option-for-maximum-exp-value-when-merging-orbs.patch
@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <[email protected]>
+Date: Fri, 10 Nov 2017 23:03:12 -0500
+Subject: [PATCH] Option for maximum exp value when merging orbs
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index 22da112f45ddb20d113550eae67ac08eb2fcb727..f80bdb38cf377684382bb817fedbeb8d5aae4704 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -640,16 +640,30 @@ public class CraftEventFactory {
+             net.minecraft.world.entity.ExperienceOrb xp = (net.minecraft.world.entity.ExperienceOrb) entity;
+             double radius = world.spigotConfig.expMerge;
+             if (radius > 0) {
++                // Paper start - Maximum exp value when merging - Whole section has been tweaked, see comments for specifics
++                final int maxValue = world.paperConfig().entities.behavior.experienceMergeMaxValue;
++                final boolean mergeUnconditionally = world.paperConfig().entities.behavior.experienceMergeMaxValue <= 0;
++                if (mergeUnconditionally || xp.value < maxValue) { // Paper - Skip iteration if unnecessary
++
+                 List<Entity> entities = world.getEntities(entity, entity.getBoundingBox().inflate(radius, radius, radius));
+                 for (Entity e : entities) {
+                     if (e instanceof net.minecraft.world.entity.ExperienceOrb) {
+                         net.minecraft.world.entity.ExperienceOrb loopItem = (net.minecraft.world.entity.ExperienceOrb) e;
+-                        if (!loopItem.isRemoved()) {
++                        // Paper start
++                        if (!loopItem.isRemoved() && !(maxValue > 0 && loopItem.value >= maxValue)) {
++                            long newTotal = (long)xp.value + (long)loopItem.value;
++                            if ((int) newTotal < 0) continue; // Overflow
++                            if (maxValue > 0 && newTotal > (long)maxValue) {
++                                loopItem.value = (int) (newTotal - maxValue);
++                                xp.value = maxValue;
++                            } else {
+                             xp.value += loopItem.value;
+                             loopItem.discard();
++                            } // Paper end
+                         }
+                     }
+                 }
++                } // Paper end - End iteration skip check - All tweaking ends here
+             }
+         // Spigot end
+         } else if (!(entity instanceof ServerPlayer)) {