PaperMC/patches/server/0929-Do-crystal-portal-proximity-check-before-entity-look.patch
Jake Potrebic bd38e0318a
Updated Upstream (Bukkit/CraftBukkit) (#10379)
Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appear 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:
f02baa38 PR-988: Add World#getIntersectingChunks(BoundingBox)
9321d665 Move getItemInUse up to LivingEntity
819eef73 PR-959: Add access to current item's remaining ticks
c4fdadb0 SPIGOT-7601: Add AbstractArrow#getItem
be8261ca Add support for Java 22
26119676 PR-979: Add more translation keys
66753362 PR-985: Correct book maximum pages and characters per page documentation
c8be92fa PR-980: Improve getArmorContents() documentation
f1120ee2 PR-983: Expose riptide velocity to PlayerRiptideEvent

CraftBukkit Changes:
dfaa89bbe PR-1369: Add World#getIntersectingChunks(BoundingBox)
51bbab2b9 Move getItemInUse up to LivingEntity
668e09602 PR-1331: Add access to current item's remaining ticks
a639406d1 SPIGOT-7601: Add AbstractArrow#getItem
0398930fc SPIGOT-7602: Allow opening in-world horse and related inventories
ffd15611c SPIGOT-7608: Allow empty lists to morph to any PDT list
2188dcfa9 Add support for Java 22
45d6a609f SPIGOT-7604: Revert "SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime"
06d915943 SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime
ca3bc3707 PR-1361: Add more translation keys
366c3ca80 SPIGOT-7600: EntityChangeBlockEvent is not fired for frog eggs
06d0f9ba8 SPIGOT-7593: Fix sapling growth physics / client-side updates
45c2608e4 PR-1366: Expose riptide velocity to PlayerRiptideEvent
29b6bb79b SPIGOT-7587: Remove fixes for now-resolved MC-142590 and MC-109346
2024-04-06 12:53:39 -07:00

75 lines
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Tue, 15 Aug 2023 21:04:55 +0200
Subject: [PATCH] Do crystal-portal proximity check before entity lookup
This adds a very cheap distance check when an end crystal is placed.
Attempting to respawn the dragon, which involves looking up the end crystal
entities near the portal, every time an end crystal is placed, can be slow on
some servers that have players placing end crystals as a style of combat.
The very cheap distance check prevents running the entity lookup every time.
diff --git a/src/main/java/net/minecraft/world/item/EndCrystalItem.java b/src/main/java/net/minecraft/world/item/EndCrystalItem.java
index ca1edc083847b47bb450b291723aca778a5912dc..e1696f6b77df4c8fceaece64701d4db78b0a4c42 100644
--- a/src/main/java/net/minecraft/world/item/EndCrystalItem.java
+++ b/src/main/java/net/minecraft/world/item/EndCrystalItem.java
@@ -29,7 +29,7 @@ public class EndCrystalItem extends Item {
if (!iblockdata.is(Blocks.OBSIDIAN) && !iblockdata.is(Blocks.BEDROCK)) {
return InteractionResult.FAIL;
} else {
- BlockPos blockposition1 = blockposition.above();
+ BlockPos blockposition1 = blockposition.above(); final BlockPos aboveBlockPosition = blockposition1; // Paper - OBFHELPER
if (!world.isEmptyBlock(blockposition1)) {
return InteractionResult.FAIL;
@@ -56,7 +56,7 @@ public class EndCrystalItem extends Item {
EndDragonFight enderdragonbattle = ((ServerLevel) world).getDragonFight();
if (enderdragonbattle != null) {
- enderdragonbattle.tryRespawn();
+ enderdragonbattle.tryRespawn(aboveBlockPosition); // Paper - Perf: Do crystal-portal proximity check before entity lookup
}
}
diff --git a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
index b9c85289776971f90eb5749262a9014befe465f7..d4f903c402765c6e8e1db99e148613748f530726 100644
--- a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+++ b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
@@ -558,6 +558,12 @@ public class EndDragonFight {
}
public boolean tryRespawn() { // CraftBukkit - return boolean
+ // Paper start - Perf: Do crystal-portal proximity check before entity lookup
+ return this.tryRespawn(null);
+ }
+
+ public boolean tryRespawn(@Nullable BlockPos placedEndCrystalPos) { // placedEndCrystalPos is null if the tryRespawn() call was not caused by a placed end crystal
+ // Paper end - Perf: Do crystal-portal proximity check before entity lookup
if (this.dragonKilled && this.respawnStage == null) {
BlockPos blockposition = this.portalLocation;
@@ -575,6 +581,22 @@ public class EndDragonFight {
blockposition = this.portalLocation;
}
+ // Paper start - Perf: Do crystal-portal proximity check before entity lookup
+ if (placedEndCrystalPos != null) {
+ // The end crystal must be 0 or 1 higher than the portal origin
+ int dy = placedEndCrystalPos.getY() - blockposition.getY();
+ if (dy != 0 && dy != 1) {
+ return false;
+ }
+ // The end crystal must be within a distance of 1 in one planar direction, and 3 in the other
+ int dx = placedEndCrystalPos.getX() - blockposition.getX();
+ int dz = placedEndCrystalPos.getZ() - blockposition.getZ();
+ if (!((dx >= -1 && dx <= 1 && dz >= -3 && dz <= 3) || (dx >= -3 && dx <= 3 && dz >= -1 && dz <= 1))) {
+ return false;
+ }
+ }
+ // Paper end - Perf: Do crystal-portal proximity check before entity lookup
+
List<EndCrystal> list = Lists.newArrayList();
BlockPos blockposition1 = blockposition.above(1);
Iterator iterator = Direction.Plane.HORIZONTAL.iterator();