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add back Optimize collision to not load chunks

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This commit is contained in:
Jake Potrebic 2021-11-24 10:46:06 -08:00
parent 04875eb8c5
commit 56eed81a9a
2 changed files with 127 additions and 1 deletions
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3
patches/server/MC-Utils.patch
View File

@ -6198,7 +6198,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
BlockState getBlockState(BlockPos pos);
+ // Paper start - if loaded util
+ BlockState getTypeIfLoaded(BlockPos blockposition);
+ @Nullable BlockState getTypeIfLoaded(BlockPos blockposition);
+ default Material getMaterialIfLoaded(BlockPos blockposition) {
+ BlockState type = this.getTypeIfLoaded(blockposition);
+ return type == null ? null : type.getMaterial();
@ -6314,6 +6314,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ }
+
+ @Override
+ @Nullable
+ public final BlockState getTypeIfLoaded(BlockPos blockposition) {
+ // CraftBukkit start - tree generation
+ if (captureTreeGeneration) {

125
patches/server/Optimize-Collision-to-not-load-chunks.patch Normal file
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@ -0,0 +1,125 @@
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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -0,0 +0,0 @@ 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(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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -0,0 +0,0 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
// Paper end
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
+ public boolean collisionLoadChunks = false; // Paper
private CraftEntity bukkitEntity;
public 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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/level/BlockCollisions.java
+++ b/src/main/java/net/minecraft/world/level/BlockCollisions.java
@@ -0,0 +0,0 @@ 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 && net.minecraft.server.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.getTypeIfLoaded(this.pos);
+ }
+
+ if (blockState == null) {
+ if (!(source instanceof net.minecraft.server.level.ServerPlayer) || source.level.paperConfig.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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/level/CollisionGetter.java
+++ b/src/main/java/net/minecraft/world/level/CollisionGetter.java
@@ -0,0 +0,0 @@ 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;
diff --git a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
@@ -0,0 +0,0 @@ public final class Shapes {
if (s < 3) {
mutableBlockPos.set(axisCycle, q, r, p);
- BlockState blockState = world.getBlockState(mutableBlockPos);
+ BlockState blockState = world.getTypeIfLoaded(mutableBlockPos); // Paper
+ if (blockState == null) return 0.0D; // Paper
if ((s != 1 || blockState.hasLargeCollisionShape()) && (s != 2 || blockState.is(Blocks.MOVING_PISTON))) {
initial = blockState.getCollisionShape(world, mutableBlockPos, context).collide(axis3, box.move((double)(-mutableBlockPos.getX()), (double)(-mutableBlockPos.getY()), (double)(-mutableBlockPos.getZ())), initial);
if (Math.abs(initial) < 1.0E-7D) {