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6f2009754d
At the time this was re-added, there was concern around how the JIT would handle the system property that enabled it. This shouldn't be a problem, and as such we no longer need to block access to it. The Vanilla Method Profiler will not provide much to most users however there is no harm in providing it as an option. For most users, the recommended and supported method for determining performance issues with Paper will continue to be Timings.
200 lines
8.8 KiB
Diff
200 lines
8.8 KiB
Diff
From 2de082f53860d4623c135b9c1f8daf6cb161a32b Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sat, 11 Nov 2017 17:57:39 -0500
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Subject: [PATCH] Improve Structures Checking
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Improves performance by keying every chunk thats part of a structure to a hashmap
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instead of only the first one.
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This allows us to avoid iterating the entire structures value set to see
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if a block position is inside of a structure.
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This should have pretty decent performance improvement to any standard world
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that has been around for a whilewith lots of structures due to ineffeciencies
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in how MC stores structures (even unloaded chunks has structured data loaded)
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diff --git a/src/main/java/net/minecraft/server/StructureBoundingBox.java b/src/main/java/net/minecraft/server/StructureBoundingBox.java
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index db419cd9..d9329bd4 100644
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--- a/src/main/java/net/minecraft/server/StructureBoundingBox.java
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+++ b/src/main/java/net/minecraft/server/StructureBoundingBox.java
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@@ -4,12 +4,14 @@ import com.google.common.base.MoreObjects;
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public class StructureBoundingBox {
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- public int a;
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- public int b;
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- public int c;
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- public int d;
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- public int e;
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- public int f;
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+ public int a; // Paper - If changes, verify low/high getters
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+ public int b; // Paper - If changes, verify low/high getters
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+ public int c; // Paper - If changes, verify low/high getters
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+ public int d; // Paper - If changes, verify low/high getters
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+ public int e; // Paper - If changes, verify low/high getters
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+ public int f; // Paper - If changes, verify low/high getters
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+ public BaseBlockPosition getLowPosition() { return new BaseBlockPosition(a, b, c); } // Paper
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+ public BaseBlockPosition getHighPosition() { return new BaseBlockPosition(d, e, f); } // Paper
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public StructureBoundingBox() {}
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@@ -114,6 +116,7 @@ public class StructureBoundingBox {
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this.f += k;
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}
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+ public boolean contains(BaseBlockPosition baseblockposition) { return b(baseblockposition); } // Paper - OBFHELPER
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public boolean b(BaseBlockPosition baseblockposition) {
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return baseblockposition.getX() >= this.a && baseblockposition.getX() <= this.d && baseblockposition.getZ() >= this.c && baseblockposition.getZ() <= this.f && baseblockposition.getY() >= this.b && baseblockposition.getY() <= this.e;
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}
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diff --git a/src/main/java/net/minecraft/server/StructureGenerator.java b/src/main/java/net/minecraft/server/StructureGenerator.java
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index e8263baa..f4dfba8f 100644
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--- a/src/main/java/net/minecraft/server/StructureGenerator.java
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+++ b/src/main/java/net/minecraft/server/StructureGenerator.java
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@@ -6,6 +6,7 @@ import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
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import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
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import it.unimi.dsi.fastutil.objects.ObjectIterator;
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import java.util.Iterator;
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+import java.util.List;
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import java.util.Random;
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import javax.annotation.Nullable;
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@@ -14,6 +15,7 @@ public abstract class StructureGenerator extends WorldGenBase {
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private final Timing timing = MinecraftTimings.getStructureTiming(this); // Paper
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private PersistentStructure a;
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protected Long2ObjectMap<StructureStart> c = new Long2ObjectOpenHashMap(1024);
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+ protected Long2ObjectMap<StructureStart> allStructures = new Long2ObjectOpenHashMap(1024); // Paper - Holds ref to structures for every chunk its part of, where as the one above this only holds the vanilla oriented ones.
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public StructureGenerator() {}
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@@ -29,6 +31,7 @@ public abstract class StructureGenerator extends WorldGenBase {
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if (this.a(i, j)) {
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StructureStart structurestart = this.b(i, j);
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+ populateStructure(structurestart); // Paper
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this.c.put(ChunkCoordIntPair.a(i, j), structurestart);
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if (structurestart.a()) {
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this.a(i, j, structurestart);
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@@ -106,6 +109,19 @@ public abstract class StructureGenerator extends WorldGenBase {
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@Nullable
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protected StructureStart c(BlockPosition blockposition) {
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+ // Paper start - replace method
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+ StructureStart structureStart = allStructures.get(ChunkCoordIntPair.asLong(blockposition));
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+ if (structureStart != null && structureStart.isSizeable() && structureStart.getBoundingBox().contains(blockposition)) {
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+ List<StructurePiece> structurePieces = structureStart.getStructurePieces();
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+ for (StructurePiece piece : structurePieces) {
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+ if (piece.getBoundingBox().contains(blockposition)) {
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+ return structureStart;
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+ }
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+ }
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+ }
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+
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+ return null;
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+ /*
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ObjectIterator objectiterator = this.c.values().iterator();
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while (objectiterator.hasNext()) {
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@@ -125,11 +141,16 @@ public abstract class StructureGenerator extends WorldGenBase {
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}
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return null;
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+ */
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}
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public boolean a(World world, BlockPosition blockposition) {
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if (this.g == null) return false; // Paper
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this.a(world);
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+ // Paper start - Replace method
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+ StructureStart structureStart = this.allStructures.get(ChunkCoordIntPair.asLong(blockposition));
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+ return structureStart != null && structureStart.isSizeable() && structureStart.getBoundingBox().contains(blockposition);
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+ /* // comment out rest
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ObjectIterator objectiterator = this.c.values().iterator();
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StructureStart structurestart;
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@@ -142,7 +163,7 @@ public abstract class StructureGenerator extends WorldGenBase {
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structurestart = (StructureStart) objectiterator.next();
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} while (!structurestart.a() || !structurestart.b().b((BaseBlockPosition) blockposition));
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- return true;
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+ return true;*/ // Paper end
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}
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@Nullable
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@@ -177,6 +198,7 @@ public abstract class StructureGenerator extends WorldGenBase {
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StructureStart structurestart = WorldGenFactory.a(nbttagcompound1, world);
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if (structurestart != null) {
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+ populateStructure(structurestart); // Paper
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this.c.put(ChunkCoordIntPair.a(i, j), structurestart);
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}
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}
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@@ -187,6 +209,27 @@ public abstract class StructureGenerator extends WorldGenBase {
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}
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+ // Paper start
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+ private void populateStructure(StructureStart structurestart) {
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+ for (StructurePiece piece : structurestart.getStructurePieces()) {
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+ populateStructure(structurestart, piece.getBoundingBox());
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+ }
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+ populateStructure(structurestart, structurestart.getBoundingBox());
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+ }
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+ private void populateStructure(StructureStart structurestart, StructureBoundingBox bb) {
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+ if (bb == null) {
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+ return;
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+ }
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+ final BaseBlockPosition low = bb.getLowPosition();
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+ final BaseBlockPosition high = bb.getHighPosition();
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+ for (int x = low.getX() >> 4, maxX = high.getX() >> 4; x <= maxX; x++) {
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+ for (int z = low.getZ() >> 4, maxZ = high.getZ() >> 4; z <= maxZ; z++) {
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+ allStructures.put(ChunkCoordIntPair.asLong(x, z), structurestart);
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+ }
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+ }
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+ }
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+ // Paper end
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+
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private void a(int i, int j, StructureStart structurestart) {
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this.a.a(structurestart.a(i, j), i, j);
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this.a.c();
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diff --git a/src/main/java/net/minecraft/server/StructurePiece.java b/src/main/java/net/minecraft/server/StructurePiece.java
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index 93903bc6..fcc13f81 100644
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--- a/src/main/java/net/minecraft/server/StructurePiece.java
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+++ b/src/main/java/net/minecraft/server/StructurePiece.java
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@@ -53,6 +53,7 @@ public abstract class StructurePiece {
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public abstract boolean a(World world, Random random, StructureBoundingBox structureboundingbox);
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+ public StructureBoundingBox getBoundingBox() { return d(); } // Paper - OBFHELPER
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public StructureBoundingBox d() {
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return this.l;
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}
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diff --git a/src/main/java/net/minecraft/server/StructureStart.java b/src/main/java/net/minecraft/server/StructureStart.java
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index b6abc74e..f9bb953d 100644
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--- a/src/main/java/net/minecraft/server/StructureStart.java
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+++ b/src/main/java/net/minecraft/server/StructureStart.java
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@@ -19,10 +19,12 @@ public abstract class StructureStart {
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this.d = j;
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}
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+ public StructureBoundingBox getBoundingBox() { return b(); } // Paper - OBFHELPER
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public StructureBoundingBox b() {
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return this.b;
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}
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+ public List<StructurePiece> getStructurePieces() { return c(); } // Paper - OBFHELPER
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public List<StructurePiece> c() {
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return this.a;
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}
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@@ -137,7 +139,7 @@ public abstract class StructureStart {
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}
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- public boolean a() {
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+ public boolean isSizeable() { return a(); } public boolean a() { // Paper - OBFHELPER
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return true;
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}
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--
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2.14.3
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