Option to prevent armor stands from doing entity lookups

paper-server/patches/sources/net/minecraft/world/entity/decoration/ArmorStand.java.patch

@@ -97,7 +97,15 @@
          }
  
      }
-@@ -341,7 +362,7 @@
+@@ -327,6 +348,7 @@
+ 
+     @Override
+     protected void pushEntities() {
++        if (!this.level().paperConfig().entities.armorStands.doCollisionEntityLookups) return; // Paper - Option to prevent armor stands from doing entity lookups
+         List<Entity> list = this.level().getEntities((Entity) this, this.getBoundingBox(), ArmorStand.RIDABLE_MINECARTS);
+         Iterator iterator = list.iterator();
+ 
+@@ -341,7 +363,7 @@
      }
  
      @Override
@@ -106,7 +114,7 @@
          ItemStack itemstack = player.getItemInHand(hand);
  
          if (!this.isMarker() && !itemstack.is(Items.NAME_TAG)) {
-@@ -350,11 +371,11 @@
+@@ -350,11 +372,11 @@
              } else if (player.level().isClientSide) {
                  return InteractionResult.SUCCESS_SERVER;
              } else {
@@ -121,7 +129,7 @@
  
                      if (this.hasItemInSlot(enumitemslot2) && this.swapItem(player, enumitemslot2, itemstack, hand)) {
                          return InteractionResult.SUCCESS_SERVER;
-@@ -364,7 +385,7 @@
+@@ -364,7 +386,7 @@
                          return InteractionResult.FAIL;
                      }
  
@@ -130,7 +138,7 @@
                          return InteractionResult.FAIL;
                      }
  
-@@ -380,39 +401,57 @@
+@@ -380,39 +402,57 @@
          }
      }
  
@@ -204,7 +212,7 @@
              this.setItemSlot(slot, stack.copyWithCount(1));
              return true;
          } else if (!stack.isEmpty() && stack.getCount() > 1) {
-@@ -427,6 +466,7 @@
+@@ -427,6 +467,7 @@
              player.setItemInHand(hand, itemstack1);
              return true;
          }
@@ -212,7 +220,7 @@
      }
  
      @Override
-@@ -436,12 +476,22 @@
+@@ -436,12 +477,22 @@
          } else if (!world.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING) && source.getEntity() instanceof Mob) {
              return false;
          } else if (source.is(DamageTypeTags.BYPASSES_INVULNERABILITY)) {
@@ -238,7 +246,7 @@
                  return false;
              } else if (source.is(DamageTypeTags.IGNITES_ARMOR_STANDS)) {
                  if (this.isOnFire()) {
-@@ -463,8 +513,8 @@
+@@ -463,8 +514,8 @@
                  } else {
                      Entity entity = source.getEntity();
  
@@ -249,7 +257,7 @@
  
                          if (!entityhuman.getAbilities().mayBuild) {
                              return false;
-@@ -474,7 +524,7 @@
+@@ -474,7 +525,7 @@
                      if (source.isCreativePlayer()) {
                          this.playBrokenSound();
                          this.showBreakingParticles();
@@ -258,7 +266,7 @@
                          return true;
                      } else {
                          long i = world.getGameTime();
-@@ -486,7 +536,7 @@
+@@ -486,7 +537,7 @@
                          } else {
                              this.brokenByPlayer(world, source);
                              this.showBreakingParticles();
@@ -267,7 +275,7 @@
                          }
  
                          return true;
-@@ -536,7 +586,7 @@
+@@ -536,7 +587,7 @@
          f1 -= amount;
          if (f1 <= 0.5F) {
              this.brokenByAnything(world, damageSource);
@@ -276,7 +284,7 @@
          } else {
              this.setHealth(f1);
              this.gameEvent(GameEvent.ENTITY_DAMAGE, damageSource.getEntity());
-@@ -548,13 +598,13 @@
+@@ -548,13 +599,13 @@
          ItemStack itemstack = new ItemStack(Items.ARMOR_STAND);
  
          itemstack.set(DataComponents.CUSTOM_NAME, this.getCustomName());
@@ -292,7 +300,7 @@
  
          ItemStack itemstack;
          int i;
-@@ -562,7 +612,7 @@
+@@ -562,7 +613,7 @@
          for (i = 0; i < this.handItems.size(); ++i) {
              itemstack = (ItemStack) this.handItems.get(i);
              if (!itemstack.isEmpty()) {
@@ -301,7 +309,7 @@
                  this.handItems.set(i, ItemStack.EMPTY);
              }
          }
-@@ -570,15 +620,16 @@
+@@ -570,15 +621,16 @@
          for (i = 0; i < this.armorItems.size(); ++i) {
              itemstack = (ItemStack) this.armorItems.get(i);
              if (!itemstack.isEmpty()) {
@@ -320,7 +328,7 @@
      }
  
      @Override
-@@ -663,10 +714,24 @@
+@@ -663,10 +715,24 @@
      public boolean isBaby() {
          return this.isSmall();
      }
@@ -346,7 +354,7 @@
          this.gameEvent(GameEvent.ENTITY_DIE);
      }
  
-@@ -788,7 +853,7 @@
+@@ -788,7 +854,7 @@
  
      @Override
      public boolean skipAttackInteraction(Entity attacker) {
@@ -355,7 +363,7 @@
      }
  
      @Override
-@@ -882,4 +947,13 @@
+@@ -882,4 +948,13 @@
      public boolean canBeSeenByAnyone() {
          return !this.isInvisible() && !this.isMarker();
      }

paper-server/patches/sources/net/minecraft/world/level/Level.java.patch

@@ -237,7 +237,7 @@
  
 +    // Paper start - if loaded
      @Nullable
-+    @Override
+     @Override
 +    public final ChunkAccess getChunkIfLoadedImmediately(int x, int z) {
 +        return ((ServerLevel)this).chunkSource.getChunkAtIfLoadedImmediately(x, z);
 +    }
@@ -290,7 +290,7 @@
 +        return getWorldBorder().isWithinBounds(blockposition) ? getBlockStateIfLoaded(blockposition) : null;
 +    }
 +
-     @Override
++    @Override
      public ChunkAccess getChunk(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create) {
 +        // Paper end
          ChunkAccess ichunkaccess = this.getChunkSource().getChunk(chunkX, chunkZ, leastStatus, create);
@@ -475,7 +475,7 @@
  
              return chunk.getBlockState(pos);
          }
-@@ -446,32 +720,44 @@
+@@ -446,34 +720,53 @@
              this.pendingBlockEntityTickers.clear();
          }
  
@@ -528,16 +528,25 @@
 +            // Paper end - Prevent block entity and entity crashes
          }
      }
++    // Paper start - Option to prevent armor stands from doing entity lookups
++    @Override
++    public boolean noCollision(@Nullable Entity entity, AABB box) {
++        if (entity instanceof net.minecraft.world.entity.decoration.ArmorStand && !entity.level().paperConfig().entities.armorStands.doCollisionEntityLookups) return false;
++        return LevelAccessor.super.noCollision(entity, box);
++    }
++    // Paper end - Option to prevent armor stands from doing entity lookups
  
-@@ -510,13 +796,29 @@
+     public boolean shouldTickDeath(Entity entity) {
+         return true;
+@@ -510,13 +803,29 @@
      @Nullable
      @Override
      public BlockEntity getBlockEntity(BlockPos pos) {
 -        return this.isOutsideBuildHeight(pos) ? null : (!this.isClientSide && Thread.currentThread() != this.thread ? null : this.getChunkAt(pos).getBlockEntity(pos, LevelChunk.EntityCreationType.IMMEDIATE));
 +        // CraftBukkit start
 +        return this.getBlockEntity(pos, true);
-+    }
+     }
-+
+ 
 +    @Nullable
 +    public BlockEntity getBlockEntity(BlockPos blockposition, boolean validate) {
 +        if (this.capturedTileEntities.containsKey(blockposition)) {
@@ -545,8 +554,8 @@
 +        }
 +        // CraftBukkit end
 +        return this.isOutsideBuildHeight(blockposition) ? null : (!this.isClientSide && Thread.currentThread() != this.thread ? null : this.getChunkAt(blockposition).getBlockEntity(blockposition, LevelChunk.EntityCreationType.IMMEDIATE));
-     }
++    }
- 
++
      public void setBlockEntity(BlockEntity blockEntity) {
          BlockPos blockposition = blockEntity.getBlockPos();
  
@@ -560,7 +569,7 @@
              this.getChunkAt(blockposition).addAndRegisterBlockEntity(blockEntity);
          }
      }
-@@ -643,7 +945,7 @@
+@@ -643,7 +952,7 @@
  
                  for (int k = 0; k < j; ++k) {
                      EnderDragonPart entitycomplexpart = aentitycomplexpart[k];
@@ -569,7 +578,7 @@
  
                      if (t0 != null && predicate.test(t0)) {
                          result.add(t0);
-@@ -912,7 +1214,7 @@
+@@ -912,7 +1221,7 @@
  
      public static enum ExplosionInteraction implements StringRepresentable {