From 13d727f38a8615e821d1794176154b34780c0c19 Mon Sep 17 00:00:00 2001 From: Aikar Date: Sat, 11 Nov 2017 17:57:39 -0500 Subject: [PATCH] Improve Structures Checking Improves performance by keying every chunk thats part of a structure to a hashmap instead of only the first one. This allows us to avoid iterating the entire structures value set to see if a block position is inside of a structure. This should have pretty decent performance improvement to any standard world that has been around for a whilewith lots of structures due to ineffeciencies in how MC stores structures (even unloaded chunks has structured data loaded) diff --git a/src/main/java/net/minecraft/server/StructureBoundingBox.java b/src/main/java/net/minecraft/server/StructureBoundingBox.java index db419cd99..d9329bd42 100644 --- a/src/main/java/net/minecraft/server/StructureBoundingBox.java +++ b/src/main/java/net/minecraft/server/StructureBoundingBox.java @@ -4,12 +4,14 @@ import com.google.common.base.MoreObjects; public class StructureBoundingBox { - public int a; - public int b; - public int c; - public int d; - public int e; - public int f; + public int a; // Paper - If changes, verify low/high getters + public int b; // Paper - If changes, verify low/high getters + public int c; // Paper - If changes, verify low/high getters + public int d; // Paper - If changes, verify low/high getters + public int e; // Paper - If changes, verify low/high getters + public int f; // Paper - If changes, verify low/high getters + public BaseBlockPosition getLowPosition() { return new BaseBlockPosition(a, b, c); } // Paper + public BaseBlockPosition getHighPosition() { return new BaseBlockPosition(d, e, f); } // Paper public StructureBoundingBox() {} @@ -114,6 +116,7 @@ public class StructureBoundingBox { this.f += k; } + public boolean contains(BaseBlockPosition baseblockposition) { return b(baseblockposition); } // Paper - OBFHELPER public boolean b(BaseBlockPosition baseblockposition) { 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; } diff --git a/src/main/java/net/minecraft/server/StructureGenerator.java b/src/main/java/net/minecraft/server/StructureGenerator.java index e8263baa4..f4dfba8f3 100644 --- a/src/main/java/net/minecraft/server/StructureGenerator.java +++ b/src/main/java/net/minecraft/server/StructureGenerator.java @@ -6,6 +6,7 @@ import it.unimi.dsi.fastutil.longs.Long2ObjectMap; import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap; import it.unimi.dsi.fastutil.objects.ObjectIterator; import java.util.Iterator; +import java.util.List; import java.util.Random; import javax.annotation.Nullable; @@ -14,6 +15,7 @@ public abstract class StructureGenerator extends WorldGenBase { private final Timing timing = MinecraftTimings.getStructureTiming(this); // Paper private PersistentStructure a; protected Long2ObjectMap c = new Long2ObjectOpenHashMap(1024); + protected Long2ObjectMap 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. public StructureGenerator() {} @@ -29,6 +31,7 @@ public abstract class StructureGenerator extends WorldGenBase { if (this.a(i, j)) { StructureStart structurestart = this.b(i, j); + populateStructure(structurestart); // Paper this.c.put(ChunkCoordIntPair.a(i, j), structurestart); if (structurestart.a()) { this.a(i, j, structurestart); @@ -106,6 +109,19 @@ public abstract class StructureGenerator extends WorldGenBase { @Nullable protected StructureStart c(BlockPosition blockposition) { + // Paper start - replace method + StructureStart structureStart = allStructures.get(ChunkCoordIntPair.asLong(blockposition)); + if (structureStart != null && structureStart.isSizeable() && structureStart.getBoundingBox().contains(blockposition)) { + List structurePieces = structureStart.getStructurePieces(); + for (StructurePiece piece : structurePieces) { + if (piece.getBoundingBox().contains(blockposition)) { + return structureStart; + } + } + } + + return null; + /* ObjectIterator objectiterator = this.c.values().iterator(); while (objectiterator.hasNext()) { @@ -125,11 +141,16 @@ public abstract class StructureGenerator extends WorldGenBase { } return null; + */ } public boolean a(World world, BlockPosition blockposition) { if (this.g == null) return false; // Paper this.a(world); + // Paper start - Replace method + StructureStart structureStart = this.allStructures.get(ChunkCoordIntPair.asLong(blockposition)); + return structureStart != null && structureStart.isSizeable() && structureStart.getBoundingBox().contains(blockposition); + /* // comment out rest ObjectIterator objectiterator = this.c.values().iterator(); StructureStart structurestart; @@ -142,7 +163,7 @@ public abstract class StructureGenerator extends WorldGenBase { structurestart = (StructureStart) objectiterator.next(); } while (!structurestart.a() || !structurestart.b().b((BaseBlockPosition) blockposition)); - return true; + return true;*/ // Paper end } @Nullable @@ -177,6 +198,7 @@ public abstract class StructureGenerator extends WorldGenBase { StructureStart structurestart = WorldGenFactory.a(nbttagcompound1, world); if (structurestart != null) { + populateStructure(structurestart); // Paper this.c.put(ChunkCoordIntPair.a(i, j), structurestart); } } @@ -187,6 +209,27 @@ public abstract class StructureGenerator extends WorldGenBase { } + // Paper start + private void populateStructure(StructureStart structurestart) { + for (StructurePiece piece : structurestart.getStructurePieces()) { + populateStructure(structurestart, piece.getBoundingBox()); + } + populateStructure(structurestart, structurestart.getBoundingBox()); + } + private void populateStructure(StructureStart structurestart, StructureBoundingBox bb) { + if (bb == null) { + return; + } + final BaseBlockPosition low = bb.getLowPosition(); + final BaseBlockPosition high = bb.getHighPosition(); + for (int x = low.getX() >> 4, maxX = high.getX() >> 4; x <= maxX; x++) { + for (int z = low.getZ() >> 4, maxZ = high.getZ() >> 4; z <= maxZ; z++) { + allStructures.put(ChunkCoordIntPair.asLong(x, z), structurestart); + } + } + } + // Paper end + private void a(int i, int j, StructureStart structurestart) { this.a.a(structurestart.a(i, j), i, j); this.a.c(); diff --git a/src/main/java/net/minecraft/server/StructurePiece.java b/src/main/java/net/minecraft/server/StructurePiece.java index 93903bc67..fcc13f811 100644 --- a/src/main/java/net/minecraft/server/StructurePiece.java +++ b/src/main/java/net/minecraft/server/StructurePiece.java @@ -53,6 +53,7 @@ public abstract class StructurePiece { public abstract boolean a(World world, Random random, StructureBoundingBox structureboundingbox); + public StructureBoundingBox getBoundingBox() { return d(); } // Paper - OBFHELPER public StructureBoundingBox d() { return this.l; } diff --git a/src/main/java/net/minecraft/server/StructureStart.java b/src/main/java/net/minecraft/server/StructureStart.java index b6abc74e0..f9bb953d0 100644 --- a/src/main/java/net/minecraft/server/StructureStart.java +++ b/src/main/java/net/minecraft/server/StructureStart.java @@ -19,10 +19,12 @@ public abstract class StructureStart { this.d = j; } + public StructureBoundingBox getBoundingBox() { return b(); } // Paper - OBFHELPER public StructureBoundingBox b() { return this.b; } + public List getStructurePieces() { return c(); } // Paper - OBFHELPER public List c() { return this.a; } @@ -137,7 +139,7 @@ public abstract class StructureStart { } - public boolean a() { + public boolean isSizeable() { return a(); } public boolean a() { // Paper - OBFHELPER return true; } -- 2.18.0