Paper/Spigot-Server-Patches/0186-Option-for-maximum-exp-value-when-merging-orbs.patch
Spottedleaf 5c7081fecc Update upstream & fix some chunk related issues (#2177)
* Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
45690fe9 SPIGOT-5047: Correct slot types for 1.14 inventories

CraftBukkit Changes:
4090d01f SPIGOT-5047: Correct slot types for 1.14 inventories
e8c08362 SPIGOT-5046: World#getLoadedChunks returning inaccessible cached chunks.
d445af3b SPIGOT-5067: Add item meta for 1.14 spawn eggs

* Bring Chunk load checks in-line with spigot

As of the last upstream merge spigot now checks ticket level status
when returning loaded chunks for a world from api. Now our checks
will respect that decision.

* Fix spawn ticket levels

Vanilla would keep the inner chunks of spawn available for ticking,
however my changes made all chunks non-ticking. Resolve by changing
ticket levels for spawn chunks inside the border to respect this
behavior.


* Make World#getChunkIfLoadedImmediately return only entity ticking chunks

Mojang appears to be using chunks with level > 33 (non-ticking chunks)
as cached chunks and not actually loaded chunks.

* Bring all loaded checks in line with spigot

Loaded chunks must be at least border  chunks, or level <= 33
2019-06-14 03:27:40 +01:00

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Diff

From 48b7998a874015e3d8f5ea4f419acdbccf9fc6ea Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
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/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index abc967d3f5..2a50d6babf 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -338,4 +338,10 @@ public class PaperWorldConfig {
disableCreeperLingeringEffect = getBoolean("disable-creeper-lingering-effect", false);
log("Creeper lingering effect: " + disableCreeperLingeringEffect);
}
+
+ public int expMergeMaxValue;
+ private void expMergeMaxValue() {
+ expMergeMaxValue = getInt("experience-merge-max-value", -1);
+ log("Experience Merge Max Value: " + expMergeMaxValue);
+ }
}
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 224d1dbffc..123cefd47c 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -529,16 +529,32 @@ public class CraftEventFactory {
EntityExperienceOrb xp = (EntityExperienceOrb) 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.expMergeMaxValue;
+ final boolean mergeUnconditionally = world.paperConfig.expMergeMaxValue <= 0;
+ if (mergeUnconditionally || xp.value < maxValue) { // Paper - Skip iteration if unnecessary
+
List<Entity> entities = world.getEntities(entity, entity.getBoundingBox().grow(radius, radius, radius));
for (Entity e : entities) {
if (e instanceof EntityExperienceOrb) {
EntityExperienceOrb loopItem = (EntityExperienceOrb) e;
- if (!loopItem.dead) {
- xp.value += loopItem.value;
- loopItem.die();
+ // Paper start
+ if (!loopItem.dead && !(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.die();
+ }
+ // Paper end
}
}
}
+
+ } // Paper end - End iteration skip check - All tweaking ends here
}
// Spigot end
} else if (!(entity instanceof EntityPlayer)) {
--
2.21.0