Paper/patches/server/1001-Do-crystal-portal-proximity-check-before-entity-look.patch
Jake Potrebic de04cbced5
Updated Upstream (Bukkit/CraftBukkit) (#10034)
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:
f29cb801 Separate checkstyle-suppressions file is not required
86f99bbe SPIGOT-7540, PR-946: Add ServerTickManager API
d4119585 SPIGOT-6903, PR-945: Add BlockData#getMapColor
b7a2ed41 SPIGOT-7530, PR-947: Add Player#removeResourcePack
9dd56255 SPIGOT-7527, PR-944: Add WindCharge#explode()
994a6163 Attempt upgrade of resolver libraries

CraftBukkit Changes:
b3b43a6ad Add Checkstyle check for unused imports
13fb3358e SPIGOT-7544: Scoreboard#getEntries() doesn't get entries but class names
3dda99c06 SPIGOT-7540, PR-1312: Add ServerTickManager API
2ab4508c0 SPIGOT-6903, PR-1311: Add BlockData#getMapColor
1dbdbbed4 PR-1238: Remove unnecessary sign ticking
659728d2a MC-264285, SPIGOT-7439, PR-1237: Fix unbreakable flint and steel is completely consumed while igniting creeper
e37e29ce0 Increase outdated build delay
c00438b39 SPIGOT-7530, PR-1313: Add Player#removeResourcePack
492dd80ce SPIGOT-7527, PR-1310: Add WindCharge#explode()
e11fbb9d7 Upgrade MySQL driver
9f3a0bd2a Attempt upgrade of resolver libraries
60d16d7ca PR-1306: Centralize Bukkit and Minecraft entity conversion

Spigot Changes:
06d602e7 Rebuild patches
2023-12-16 18:09:28 -08:00

76 lines
4.1 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..5a19875cbc603acea95193d969d2e1dc1e0bfd78 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 - pass placed end crystal position to pre-check proximity to portal
}
}
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 b2a57cb75916d2724f18779c922005ef9bcc0b0e..c1ff2e15bc5da1a642872ac0fdcdc457e8abb063 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 - pass null (indicating no placed end crystal involved) by default
+ 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
if (this.dragonKilled && this.respawnStage == null) {
BlockPos blockposition = this.portalLocation;
@@ -575,6 +581,22 @@ public class EndDragonFight {
blockposition = this.portalLocation;
}
+ // Paper start - check placed end crystal to portal proximity before attempting to respawn dragon
+ 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
+
List<EndCrystal> list = Lists.newArrayList();
BlockPos blockposition1 = blockposition.above(1);
Iterator iterator = Direction.Plane.HORIZONTAL.iterator();