From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar 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 getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set, boolean returnFast) {return IEntityAccess.super.getEntityCollisions(entity, axisalignedbb, set, returnFast); } // Paper @Override default Stream b(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set 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 ace1bb5bb89be256a7dc716f97429ee64b3c575f..0295e563aa027be5ca1a7eb78727aacf18729025 100644 --- a/src/main/java/net/minecraft/server/ICollisionAccess.java +++ b/src/main/java/net/minecraft/server/ICollisionAccess.java @@ -48,18 +48,39 @@ public interface ICollisionAccess extends IBlockAccess { } default boolean a(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set) { - return this.c(entity, axisalignedbb, set).allMatch(VoxelShape::isEmpty); + // Paper start - reduce stream usage + java.util.List 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 } + default java.util.List getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set, boolean returnFast) { return java.util.Collections.emptyList(); } // Paper default Stream b(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set) { return Stream.empty(); } default Stream c(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set) { - return Streams.concat(new Stream[]{this.b(entity, axisalignedbb), this.b(entity, axisalignedbb, set)}); + // Paper start - reduce stream usage + java.util.List blockCollisions = getBlockCollision(entity, axisalignedbb, false); + java.util.List entityCollisions = getEntityCollisions(entity, axisalignedbb, set, false); + return Stream.concat(blockCollisions.stream(), entityCollisions.stream()); + // Paper end } default Stream b(@Nullable final Entity entity, AxisAlignedBB axisalignedbb) { + // Paper start - reduce stream usage + java.util.List collision = getBlockCollision(entity, axisalignedbb, false); + return !collision.isEmpty() ? collision.stream() : Stream.empty(); + } + + default java.util.List 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; @@ -71,19 +92,19 @@ public interface ICollisionAccess extends IBlockAccess { final BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition(); final VoxelShape voxelshape = VoxelShapes.a(axisalignedbb); - return StreamSupport.stream(new AbstractSpliterator(Long.MAX_VALUE, 1280) { - boolean a = entity == null; - - public boolean tryAdvance(Consumer consumer) { - if (!this.a) { - this.a = true; + // Paper start - reduce stream usage (this part done by Aikar) + java.util.List collisions = new java.util.ArrayList<>(); + if (true) {//return StreamSupport.stream(new AbstractSpliterator(Long.MAX_VALUE, 1280) { + if (true) { //public boolean tryAdvance(Consumer 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; } } @@ -107,9 +128,8 @@ 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 @@ -126,14 +146,14 @@ 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 } @@ -142,8 +162,9 @@ 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 getEntityCollisions(@Nullable Entity entity, AxisAlignedBB axisalignedbb, Set set, boolean returnFast) { AxisAlignedBB selection = axisalignedbb.grow(1.0E-7D); List entities = entity != null && entity.hardCollides() ? getEntities(entity, selection) : getHardCollidingEntities(entity, selection); List 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 }