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ce270e1412
Paper/Spigot-Server-Patches/0512-Remove-some-Streams-usage-in-Entity-Collision.patch
Aikar ce270e1412
Updated Upstream (Bukkit/CraftBukkit/Spigot) 
Upstream has released updates that appears 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:
b2f1908c SPIGOT-5783: Add helpful info to UnknownDependencyException
e4f46260 SPIGOT-2623: Add EntityEquipment methods to get/set ItemStacks by slot.
529a9a69 SPIGOT-5751: Clarify behaviour of block drop-related API methods

CraftBukkit Changes:
8ea9b138 Remove outdated build delay.
ffc2b251 Revert "#675: Fix redirected CommandNodes sometimes not being properly redirected"
cb701f6b #675: Fix redirected CommandNodes sometimes not being properly redirected
c9d7c16b SPIGOT-2623: Add EntityEquipment methods to get/set ItemStacks by slot.
fad2494a #673: Fix Craftworld#isChunkLoaded
8637ec00 SPIGOT-5751: Made breakNaturally and getDrops returns the correct item if no argument is given

Spigot Changes:
a99063f7 Rebuild patches

Fixes #3602
2020-06-23 04:40:03 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 9 May 2020 18:36:27 -0400
Subject: [PATCH] Remove some Streams usage in Entity Collision
While there is more down the collision system, remove some of the wrapping
Spliterator stuff as even this wrapper stream has shown up in profiling.
With other collision optimizations, we might also even avoid inner streams too.
diff --git a/src/main/java/net/minecraft/server/GeneratorAccess.java b/src/main/java/net/minecraft/server/GeneratorAccess.java
index e865a5694f78fb9273a0625ab2c30b87d0711a90..5648ba73c533f622c35c808decdb305f8a1cf6b0 100644
--- a/src/main/java/net/minecraft/server/GeneratorAccess.java
+++ b/src/main/java/net/minecraft/server/GeneratorAccess.java
@@ -52,6 +52,7 @@ public interface GeneratorAccess extends IEntityAccess, IWorldReader, VirtualLev
this.a((EntityHuman) null, i, blockposition, j);
}
+ @Override default java.util.List<VoxelShape> getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set, boolean returnFast) {return IEntityAccess.super.getEntityCollisions(entity, axisalignedbb, set, returnFast); } // Paper
@Override
default Stream<VoxelShape> b(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set) {
return IEntityAccess.super.b(entity, axisalignedbb, set);
diff --git a/src/main/java/net/minecraft/server/ICollisionAccess.java b/src/main/java/net/minecraft/server/ICollisionAccess.java
index 5e20dba0d011d20b714d784cb4a545a05bbf6f9c..5a21205a49606b294de4cd27b60438c6a5b3c526 100644
--- a/src/main/java/net/minecraft/server/ICollisionAccess.java
+++ b/src/main/java/net/minecraft/server/ICollisionAccess.java
@@ -44,19 +44,40 @@ public interface ICollisionAccess extends IBlockAccess {
default boolean a(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set) {
try { if (entity != null) entity.collisionLoadChunks = true; // Paper
- return this.c(entity, axisalignedbb, set).allMatch(VoxelShape::isEmpty);
+ // Paper start - reduce stream usage
+ java.util.List<VoxelShape> blockCollisions = getBlockCollision(entity, axisalignedbb, true);
+ for (int i = 0; i < blockCollisions.size(); i++) {
+ VoxelShape blockCollision = blockCollisions.get(i);
+ if (!blockCollision.isEmpty()) {
+ return false;
+ }
+ }
+ return getEntityCollisions(entity, axisalignedbb, set, true).isEmpty();
+ // Paper end
} finally { if (entity != null) entity.collisionLoadChunks = false; } // Paper
}
+ default java.util.List<VoxelShape> getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set, boolean returnFast) { return java.util.Collections.emptyList(); } // Paper
default Stream<VoxelShape> b(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set) {
return Stream.empty();
}
default Stream<VoxelShape> c(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set) {
- return Streams.concat(new Stream[]{this.b(entity, axisalignedbb), this.b(entity, axisalignedbb, set)});
+ // Paper start - reduce stream usage
+ java.util.List<VoxelShape> blockCollisions = getBlockCollision(entity, axisalignedbb, false);
+ java.util.List<VoxelShape> entityCollisions = getEntityCollisions(entity, axisalignedbb, set, false);
+ return Stream.concat(blockCollisions.stream(), entityCollisions.stream());
+ // Paper end
}
default Stream<VoxelShape> b(@Nullable final Entity entity, AxisAlignedBB axisalignedbb) {
+ // Paper start - reduce stream usage
+ java.util.List<VoxelShape> collision = getBlockCollision(entity, axisalignedbb, false);
+ return !collision.isEmpty() ? collision.stream() : Stream.empty();
+ }
+
+ default java.util.List<VoxelShape> getBlockCollision(@Nullable final Entity entity, AxisAlignedBB axisalignedbb, boolean returnFast) {
+ // Paper end
int i = MathHelper.floor(axisalignedbb.minX - 1.0E-7D) - 1;
int j = MathHelper.floor(axisalignedbb.maxX + 1.0E-7D) + 1;
int k = MathHelper.floor(axisalignedbb.minY - 1.0E-7D) - 1;
@@ -68,19 +89,19 @@ public interface ICollisionAccess extends IBlockAccess {
final BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
final VoxelShape voxelshape = VoxelShapes.a(axisalignedbb);
- return StreamSupport.stream(new AbstractSpliterator<VoxelShape>(Long.MAX_VALUE, 1280) {
- boolean a = entity == null;
-
- public boolean tryAdvance(Consumer<? super VoxelShape> consumer) {
- if (!this.a) {
- this.a = true;
+ // Paper start - reduce stream usage (this part done by Aikar)
+ java.util.List<VoxelShape> collisions = new java.util.ArrayList<>();
+ if (true) {//return StreamSupport.stream(new AbstractSpliterator<VoxelShape>(Long.MAX_VALUE, 1280) {
+ if (true) { //public boolean tryAdvance(Consumer<? super VoxelShape> consumer) {*/ // Paper
+ if (entity != null) {
+ // Paper end
VoxelShape voxelshape1 = ICollisionAccess.this.getWorldBorder().a();
boolean flag = VoxelShapes.c(voxelshape1, VoxelShapes.a(entity.getBoundingBox().shrink(1.0E-7D)), OperatorBoolean.AND);
boolean flag1 = VoxelShapes.c(voxelshape1, VoxelShapes.a(entity.getBoundingBox().g(1.0E-7D)), OperatorBoolean.AND);
if (!flag && flag1) {
- consumer.accept(voxelshape1);
- return true;
+ collisions.add(voxelshape1);// Paper
+ if (returnFast) return collisions;
}
}
@@ -104,9 +125,8 @@ public interface ICollisionAccess extends IBlockAccess {
);
if (iblockdata == null) {
if (!(entity instanceof EntityPlayer) || entity.world.paperConfig.preventMovingIntoUnloadedChunks) {
- VoxelShape voxelshape3 = VoxelShapes.of(far ? entity.getBoundingBox() : new AxisAlignedBB(new BlockPosition(x, y, z)));
- consumer.accept(voxelshape3);
- return true;
+ collisions.add(VoxelShapes.of(far ? entity.getBoundingBox() : new AxisAlignedBB(new BlockPosition(x, y, z))));
+ if (returnFast) return collisions;
}
} else {
//blockposition_mutableblockposition.d(k1, l1, i2); // moved up
@@ -123,14 +143,14 @@ public interface ICollisionAccess extends IBlockAccess {
if (voxelshape2 == VoxelShapes.fullCube()) {
if (axisalignedbb.intersects(x, y, z, x + 1.0D, y + 1.0D, z + 1.0D)) {
- consumer.accept(voxelshape2.offset(x, y, z));
- return true;
+ collisions.add(voxelshape2.offset(x, y, z));
+ if (returnFast) return collisions;
}
} else {
VoxelShape shape = voxelshape2.offset(x, y, z);
if (VoxelShapes.applyOperation(shape, voxelshape, OperatorBoolean.AND)) {
- consumer.accept(shape);
- return true;
+ collisions.add(shape);
+ if (returnFast) return collisions;
}
// Paper end
}
@@ -139,8 +159,9 @@ public interface ICollisionAccess extends IBlockAccess {
}
}
- return false;
+ //return false; // Paper
}
- }, false);
+ } //}, false);
+ return collisions; // Paper
}
}
diff --git a/src/main/java/net/minecraft/server/IEntityAccess.java b/src/main/java/net/minecraft/server/IEntityAccess.java
index d434aaaaf0ab6a18ab0fe5ad0bf8ed4662f49120..3bc57ef91d557383178533b0cc87a71a521d6b3e 100644
--- a/src/main/java/net/minecraft/server/IEntityAccess.java
+++ b/src/main/java/net/minecraft/server/IEntityAccess.java
@@ -55,8 +55,10 @@ public interface IEntityAccess {
// Paper start - remove streams from entity collision
if (axisalignedbb.getAverageSideLength() < 1.0E-7D) {
return Stream.empty();
-
}
+ return getEntityCollisions(entity, axisalignedbb, set, false).stream();
+ }
+ default List<VoxelShape> getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set<Entity> set, boolean returnFast) {
AxisAlignedBB selection = axisalignedbb.grow(1.0E-7D);
List<Entity> entities = entity != null && entity.hardCollides() ? getEntities(entity, selection) : getHardCollidingEntities(entity, selection);
List<VoxelShape> shapes = new java.util.ArrayList<>();
@@ -74,6 +76,7 @@ public interface IEntityAccess {
if (otherEntityBox != null && selection.intersects(otherEntityBox)) {
shapes.add(VoxelShapes.of(otherEntityBox));
+ if (returnFast) return shapes;
}
if (entity != null) {
@@ -81,11 +84,12 @@ public interface IEntityAccess {
if (otherEntityHardBox != null && selection.intersects(otherEntityHardBox)) {
shapes.add(VoxelShapes.of(otherEntityHardBox));
+ if (returnFast) return shapes;
}
}
}
- return shapes.stream();
+ return shapes;
// Paper end
}
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