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