Paper/patches/server/0372-Optimize-Collision-to-not-load-chunks.patch
Nassim Jahnke efd47e3a68
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9188)
* Updated Upstream (Bukkit/CraftBukkit/Spigot)

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:
2fcba9b2 SPIGOT-7347: Add missing documentation and details to ShapedRecipe
c278419d PR-854: Move getHighestBlockYAt methods from World to RegionAccessor
201399fb PR-853: Add API for directly setting Display transformation matrices
ecfa559a PR-849: Add InventoryView#setTitle
653d7edb SPIGOT-519: Add TNTPrimeEvent
22fccc09 PR-846: Add method to get chunk load level
a070a52c PR-844: Add methods to convert Vector to and from JOML vectors
cc7111fe PR-276: Add accessors to Wither's invulnerability ticks
777d24e9 SPIGOT-7209: Accessors and events for player's exp cooldown
ccb2d01b SPIGOT-6308: Deprecate the location name property of map items
cd04a31b PR-780: Add PlayerSpawnChangeEvent
7d1f5b64 SPIGOT-6780: Improve documentation for World#spawnFallingBlock
5696668a SPIGOT-6885: Add test and easier to debug code for reference in yaml configuration comments
2e13cff7 PR-589: Expand the FishHook API
2c7d3da5 PR-279: Minor edits to various Javadocs

CraftBukkit Changes:
01b2e1af4 SPIGOT-7346: Disallow players from executing commands after disconnecting
7fe5ee022 PR-1186: Move getHighestBlockYAt methods from World to RegionAccessor
bcc85ef67 PR-1185: Add API for directly setting Display transformation matrices
a7cfc778f PR-1176: Add InventoryView#setTitle
563d42226 SPIGOT-519: Add TNTPrimeEvent
ccbc6abca Add test for Chunk.LoadLevel mirroring
2926e0513 PR-1171: Add method to get chunk load level
63cad7f84 PR-375: Add accessors to Wither's invulnerability ticks
bfd8b1ac8 SPIGOT-7209: Accessors and events for player's exp cooldown
f92a41c39 PR-1181: Consolidate Location conversion code
10f866759 SPIGOT-6308: Deprecate the location name property of map items
82f7b658a PR-1095: Add PlayerSpawnChangeEvent
b421af7e4 PR-808: Expand the FishHook API
598ad7b3f Increase outdated build delay

Spigot Changes:
d1bd3bd2 Rebuild patches
e4265cc8 SPIGOT-7297: Entity Tracking Range option for Display entities

* Work around javac bug

* Call PlayerSpawnChangeEvent

* Updated Upstream (Bukkit/CraftBukkit/Spigot)

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:
2fcba9b2 SPIGOT-7347: Add missing documentation and details to ShapedRecipe
c278419d PR-854: Move getHighestBlockYAt methods from World to RegionAccessor
201399fb PR-853: Add API for directly setting Display transformation matrices

CraftBukkit Changes:
01b2e1af4 SPIGOT-7346: Disallow players from executing commands after disconnecting
7fe5ee022 PR-1186: Move getHighestBlockYAt methods from World to RegionAccessor
bcc85ef67 PR-1185: Add API for directly setting Display transformation matrices

Spigot Changes:
7da74dae Rebuild patches
2023-05-12 13:10:08 +02:00

112 lines
6.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 2 Apr 2020 02:37:57 -0400
Subject: [PATCH] Optimize Collision to not load chunks
The collision code takes an AABB and generates a cuboid of checks rather
than a cylinder, so at high velocity this can generate a lot of chunk checks.
Treat an unloaded chunk as a collision for entities, and also for players if
the "prevent moving into unloaded chunks" setting is enabled.
If that serting is not enabled, collisions will be ignored for players, since
movement will load only the chunk the player enters anyways and avoids loading
massive amounts of surrounding chunks due to large AABB lookups.
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 4efa85f9c18927248dc2397df0bd3cd0a9063347..635d803066fa34a13174935ba0b63a0c86c0b1f4 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -820,6 +820,7 @@ public abstract class PlayerList {
entityplayer1.forceSetPositionRotation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
// CraftBukkit end
+ worldserver1.getChunkSource().addRegionTicket(net.minecraft.server.level.TicketType.POST_TELEPORT, new net.minecraft.world.level.ChunkPos(location.getBlockX() >> 4, location.getBlockZ() >> 4), 1, entityplayer.getId()); // Paper
while (avoidSuffocation && !worldserver1.noCollision((Entity) entityplayer1) && entityplayer1.getY() < (double) worldserver1.getMaxBuildHeight()) {
entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ());
}
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 479586efacc17e418dd8d64d884efe67355e1844..33d37c7e1bd7e676d70ba942476def5c49a59176 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -237,6 +237,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
+ public boolean collisionLoadChunks = false; // Paper
private CraftEntity bukkitEntity;
public @org.jetbrains.annotations.Nullable net.minecraft.server.level.ChunkMap.TrackedEntity tracker; // Paper
diff --git a/src/main/java/net/minecraft/world/level/BlockCollisions.java b/src/main/java/net/minecraft/world/level/BlockCollisions.java
index 8390ce194ccc692139c0e870c16a7fb76ac8ba68..be578f14146b0184d5419d5b961c5d681f9ba7a3 100644
--- a/src/main/java/net/minecraft/world/level/BlockCollisions.java
+++ b/src/main/java/net/minecraft/world/level/BlockCollisions.java
@@ -66,22 +66,41 @@ public class BlockCollisions extends AbstractIterator<VoxelShape> {
protected VoxelShape computeNext() {
while(true) {
if (this.cursor.advance()) {
- int i = this.cursor.nextX();
- int j = this.cursor.nextY();
- int k = this.cursor.nextZ();
+ int i = this.cursor.nextX(); final int x = i; // Paper
+ int j = this.cursor.nextY(); final int y = j; // Paper
+ int k = this.cursor.nextZ(); final int z = k; // Paper
int l = this.cursor.getNextType();
if (l == 3) {
continue;
}
+ // Paper start - ensure we don't load chunks
+ final @Nullable Entity source = this.context instanceof net.minecraft.world.phys.shapes.EntityCollisionContext entityContext ? entityContext.getEntity() : null;
+ boolean far = source != null && io.papermc.paper.util.MCUtil.distanceSq(source.getX(), y, source.getZ(), x, y, z) > 14;
+ this.pos.set(x, y, z);
- BlockGetter blockGetter = this.getChunk(i, k);
- if (blockGetter == null) {
+ BlockState blockState;
+ if (this.collisionGetter instanceof net.minecraft.server.level.WorldGenRegion) {
+ BlockGetter blockGetter = this.getChunk(x, z);
+ if (blockGetter == null) {
+ continue;
+ }
+ blockState = blockGetter.getBlockState(this.pos);
+ } else if ((!far && source instanceof net.minecraft.server.level.ServerPlayer) || (source != null && source.collisionLoadChunks)) {
+ blockState = this.collisionGetter.getBlockState(this.pos);
+ } else {
+ blockState = this.collisionGetter.getBlockStateIfLoaded(this.pos);
+ }
+
+ if (blockState == null) {
+ if (!(source instanceof net.minecraft.server.level.ServerPlayer) || source.level.paperConfig().chunks.preventMovingIntoUnloadedChunks) {
+ return Shapes.create(far ? source.getBoundingBox() : new AABB(new BlockPos(x, y, z)));
+ }
+ // Paper end
continue;
}
- this.pos.set(i, j, k);
- BlockState blockState = blockGetter.getBlockState(this.pos);
- if (this.onlySuffocatingBlocks && !blockState.isSuffocating(blockGetter, this.pos) || l == 1 && !blockState.hasLargeCollisionShape() || l == 2 && !blockState.is(Blocks.MOVING_PISTON)) {
+ // Paper - moved up
+ if (/*this.onlySuffocatingBlocks && (!blockState.isSuffocating(blockGetter, this.pos)) ||*/ l == 1 && !blockState.hasLargeCollisionShape() || l == 2 && !blockState.is(Blocks.MOVING_PISTON)) { // Paper - onlySuffocatingBlocks is only true on the client, so we don't care about it here
continue;
}
diff --git a/src/main/java/net/minecraft/world/level/CollisionGetter.java b/src/main/java/net/minecraft/world/level/CollisionGetter.java
index 4c373d6c8ddd9f5db88888cd8dbbfc24eb5df793..56d94c94fb0d4dc468bb5d69be655ddd5c6b5360 100644
--- a/src/main/java/net/minecraft/world/level/CollisionGetter.java
+++ b/src/main/java/net/minecraft/world/level/CollisionGetter.java
@@ -44,11 +44,13 @@ public interface CollisionGetter extends BlockGetter {
}
default boolean noCollision(@Nullable Entity entity, AABB box) {
+ try { if (entity != null) entity.collisionLoadChunks = true; // Paper
for(VoxelShape voxelShape : this.getBlockCollisions(entity, box)) {
if (!voxelShape.isEmpty()) {
return false;
}
}
+ } finally { if (entity != null) entity.collisionLoadChunks = false; } // Paper
if (!this.getEntityCollisions(entity, box).isEmpty()) {
return false;