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Yatopia/patches/Airplane/patches/server/0015-Reduce-memory-allocati...

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Tue, 9 Feb 2021 19:05:58 -0600
Subject: [PATCH] Reduce memory allocations
diff --git a/src/main/java/net/minecraft/server/BlockDirtSnowSpreadable.java b/src/main/java/net/minecraft/server/BlockDirtSnowSpreadable.java
index 7b29d47dfdef7611db58068af285f76d92a9f12a..6c5d96853d47850b81ce85e56a516c554819ef25 100644
--- a/src/main/java/net/minecraft/server/BlockDirtSnowSpreadable.java
+++ b/src/main/java/net/minecraft/server/BlockDirtSnowSpreadable.java
@@ -43,8 +43,14 @@ public abstract class BlockDirtSnowSpreadable extends BlockDirtSnow {
if (worldserver.getLightLevel(blockposition.up()) >= 9) {
IBlockData iblockdata1 = this.getBlockData();
+ // Airplane start - use mutable position
+ BlockPosition.MutableBlockPosition blockposition1 = new BlockPosition.MutableBlockPosition();
for (int i = 0; i < 4; ++i) {
+ blockposition1.setValues(blockposition).addValues(random.nextInt(3) - 1, random.nextInt(5) - 3, random.nextInt(3) - 1);
+ /*
BlockPosition blockposition1 = blockposition.b(random.nextInt(3) - 1, random.nextInt(5) - 3, random.nextInt(3) - 1);
+ */
+ // Airplane end
if (worldserver.getType(blockposition1).a(Blocks.DIRT) && c(iblockdata1, (IWorldReader) worldserver, blockposition1)) {
org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(worldserver, blockposition, blockposition1, (IBlockData) iblockdata1.set(BlockDirtSnowSpreadable.a, worldserver.getType(blockposition1.up()).a(Blocks.SNOW))); // CraftBukkit
diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index bc61aaff65a7dc1e7534452b285953b83adb7000..f38382cc681f03d9a6a0efa85f045e3770398739 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -438,6 +438,14 @@ public class BlockPosition extends BaseBlockPosition {
public BlockPosition b(int i, int j, int k) {
return super.b(i, j, k).immutableCopy();
}
+ // Airplane start - version of b that doesn't copy
+ public BlockPosition addValues(int x, int y, int z) {
+ ((BaseBlockPosition)this).a += x;
+ ((BaseBlockPosition)this).b += y;
+ ((BaseBlockPosition)this).e += z;
+ return this;
+ }
+ // Airplane end
@Override
public BlockPosition shift(EnumDirection enumdirection, int i) {
diff --git a/src/main/java/net/minecraft/server/EntityTypes.java b/src/main/java/net/minecraft/server/EntityTypes.java
index 730b91680b226df624180d64019c2984d0e29422..60ddae95c287aea071a8f277e570c2b0f25f9feb 100644
--- a/src/main/java/net/minecraft/server/EntityTypes.java
+++ b/src/main/java/net/minecraft/server/EntityTypes.java
@@ -140,6 +140,8 @@ public class EntityTypes<T extends Entity> {
public void setEntitySize(EntitySize entitySize) { this.br = entitySize; } // Purpur - OBFHELPER
private EntitySize br; // Purpur - remove final
+ public java.util.function.Supplier<String> getEntityName = () -> IRegistry.ENTITY_TYPE.getKey(this).toString(); // Airplane - create lambda ones
+
private static <T extends Entity> EntityTypes<T> a(String s, EntityTypes.Builder entitytypes_builder) { // CraftBukkit - decompile error
return (EntityTypes) IRegistry.a((IRegistry) IRegistry.ENTITY_TYPE, s, (Object) entitytypes_builder.a(s));
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index f9482f19549074e04fc4c1e4d05612a2ea23354c..e7c373e28054c49459a44faee77301e448baea44 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -642,7 +642,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
return d2 * d2 + d3 * d3;
}
- private static int b(ChunkCoordIntPair chunkcoordintpair, EntityPlayer entityplayer, boolean flag) {
+ // Airplane start - create copy that accepts x/z instead of allocating pair
+ private static int b(ChunkCoordIntPair chunkcoordintpair, EntityPlayer entityplayer, boolean flag) { return someDistanceCalculation(chunkcoordintpair.x, chunkcoordintpair.z, entityplayer, flag); }
+ private static int someDistanceCalculation(int x, int z, EntityPlayer entityplayer, boolean flag) {
int i;
int j;
@@ -656,12 +658,16 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
j = MathHelper.floor(entityplayer.locZ() / 16.0D);
}
- return a(chunkcoordintpair, i, j);
+ return someOtherDistanceCalculation(x, z, i, j);
+ // Airplane end
}
- private static int a(ChunkCoordIntPair chunkcoordintpair, int i, int j) {
- int k = chunkcoordintpair.x - i;
- int l = chunkcoordintpair.z - j;
+ // Airplane start - create copy that accepts x/z instead of allocating pair
+ private static int a(ChunkCoordIntPair chunkcoordintpair, int i, int j) { return someOtherDistanceCalculation(chunkcoordintpair.x, chunkcoordintpair.z, i, j); }
+ private static int someOtherDistanceCalculation(int x, int z, int i, int j) {
+ int k = x - i;
+ int l = z - j;
+ // Airplane end
return Math.max(Math.abs(k), Math.abs(l));
}
@@ -2500,11 +2506,17 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially
boolean flag1 = this.tracker.attachedToPlayer;
if (!flag1) {
+ // Airplane start - use int/longs instead of ChunkCoordIntPair
+ /*
ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(this.tracker.chunkX, this.tracker.chunkZ);
- PlayerChunk playerchunk = PlayerChunkMap.this.getVisibleChunk(chunkcoordintpair.pair());
+ */
+ int x = this.tracker.chunkX, z = this.tracker.chunkZ;
+ long chunkcoordintpair = ChunkCoordIntPair.pair(x, z);
+ PlayerChunk playerchunk = PlayerChunkMap.this.getVisibleChunk(chunkcoordintpair);
if (playerchunk != null && playerchunk.getSendingChunk() != null) { // Paper - no-tick view distance
- flag1 = PlayerChunkMap.b(chunkcoordintpair, entityplayer, false) <= PlayerChunkMap.this.viewDistance;
+ flag1 = PlayerChunkMap.someDistanceCalculation(x, z, entityplayer, false) <= PlayerChunkMap.this.viewDistance;
+ // Airplane end
}
}
@@ -2534,8 +2546,10 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially
}
private int b() {
+ // Airplane start
+ int i = this.trackingDistance; // move out of if statement
+ if (!this.tracker.passengers.isEmpty()) {
Collection<Entity> collection = this.tracker.getAllPassengers();
- int i = this.trackingDistance;
Iterator iterator = collection.iterator();
while (iterator.hasNext()) {
@@ -2547,6 +2561,8 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially
i = j;
}
}
+ }
+ // Airplane end
return this.a(i);
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 44f52fb6e3aedeadec4be3979ad1c625643cf9fa..8c162c5fdeaffccc9a28b592e030971fe51cafb3 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1086,19 +1086,19 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
public void a(Consumer<Entity> consumer, Entity entity) {
try {
- consumer.accept(entity);
+ consumer.accept(entity); // Airplane - error on change
} catch (Throwable throwable) {
if (throwable instanceof ThreadDeath) throw throwable; // Paper
// Paper start - Prevent tile entity and entity crashes
String msg = "Entity threw exception at " + entity.world.getWorld().getName() + ":" + entity.locX() + "," + entity.locY() + "," + entity.locZ();
System.err.println(msg);
throwable.printStackTrace();
- getServer().getPluginManager().callEvent(new ServerExceptionEvent(new ServerInternalException(msg, throwable)));
+ getServer().getPluginManager().callEvent(new ServerExceptionEvent(new ServerInternalException(msg, throwable))); // Airplane - error on change
entity.dead = true;
return;
// Paper end
}
- MinecraftServer.getServer().executeMidTickTasks(); // Tuinity - execute chunk tasks mid tick
+ MinecraftServer.getServer().executeMidTickTasks(); // Tuinity - execute chunk tasks mid tick // Airplane - error on change
}
// Paper start - Prevent armor stands from doing entity lookups
@Override
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index dd9ae27a208b5e55a1c473eda6e068a0fc3eb64f..d4672e7fa899a39bae2d9179472b22db28a58f19 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1012,7 +1012,28 @@ public class WorldServer extends World implements GeneratorAccessSeed {
gameprofilerfiller.enter("tick");
if (!entity.dead && !(entity instanceof EntityComplexPart)) {
+ // Airplane start - inline this.a to prevent creation of lambda
+ /*
this.a(this::entityJoinedWorld, entity);
+ */
+ boolean doMidTick = false; // usually there's a returns in the catch, so treat it like that
+ try {
+ this.entityJoinedWorld(entity);
+ doMidTick = true;
+ } catch (Throwable throwable) {
+ if (throwable instanceof ThreadDeath) throw throwable; // Paper
+ // Paper start - Prevent tile entity and entity crashes
+ String msg = "Entity threw exception at " + entity.world.getWorld().getName() + ":" + entity.locX() + "," + entity.locY() + "," + entity.locZ();
+ System.err.println(msg);
+ throwable.printStackTrace();
+ getServer().getPluginManager().callEvent(new com.destroystokyo.paper.event.server.ServerExceptionEvent(new com.destroystokyo.paper.exception.ServerInternalException(msg, throwable)));
+ entity.dead = true;
+ // Paper end
+ }
+ if (doMidTick) {
+ MinecraftServer.getServer().executeMidTickTasks(); // Tuinity - execute chunk tasks mid tick
+ }
+ // Airplane end
}
gameprofilerfiller.exit();
@@ -1376,9 +1397,14 @@ public class WorldServer extends World implements GeneratorAccessSeed {
++entity.ticksLived;
GameProfilerFiller gameprofilerfiller = this.getMethodProfiler();
+ // Airplane start - create debug lambda once, todo do we even WANT the method profiler?
+ /*
gameprofilerfiller.a(() -> {
return IRegistry.ENTITY_TYPE.getKey(entity.getEntityType()).toString();
});
+ */
+ gameprofilerfiller.a(entity.getEntityType().getEntityName);
+ // Airplane end
gameprofilerfiller.c("tickNonPassenger");
if (isActive) { // Paper - EAR 2
TimingHistory.activatedEntityTicks++; // Paper
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