PaperMC/Spigot-Server-Patches/Optimise-Chunk-getFluid.patch
stonar96 30d007b163 Anti Xray cleanup
Undo the accidental renaming of a method in e45e15c
Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor
in e45e15c but he also accidentally renamed
ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to
getOrCreateIdForIndex.

Remove chunk-edge-mode and chunk loading entirely from Anti-Xray
The chunk-edge-mode is broken since several versions.
Loading chunk neighbors for chunk edge obfuscation isn't needed anymore.
Unlike in previous versions, these are under normal circumstances already loaded
at the time we need them (plugins for example can bypass this).

Use the modified methods and constructors everywhere
Anti-Xray provides support for the default nms methods and constructors,
which where modified by Anti-Xray to avoid breaking stuff (plugins)
which somehow uses these methods.
However, the modified versions of those methods and constructors should be used
where possible.
2020-05-06 04:35:20 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Tue, 14 Jan 2020 14:59:08 -0800
Subject: [PATCH] Optimise Chunk#getFluid
Removing the try catch and generally reducing ops should make it
faster on its own, however removing the try catch makes it
easier to inline due to code size
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index bb95fe20e8a..33456b0bb42 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
}
public Fluid a(int i, int j, int k) {
- try {
- if (j >= 0 && j >> 4 < this.sections.length) {
- ChunkSection chunksection = this.sections[j >> 4];
-
- if (!ChunkSection.a(chunksection)) {
- return chunksection.b(i & 15, j & 15, k & 15);
+ //try { // Paper - remove try catch
+ // Paper start - reduce the number of ops in this call
+ int index = j >> 4;
+ if (index >= 0 && index < this.sections.length) {
+ ChunkSection chunksection = this.sections[index];
+
+ if (chunksection != null) {
+ return chunksection.blockIds.a((j & 15) << 8 | (k & 15) << 4 | i & 15).getFluid();
}
+ // Paper end
}
return FluidTypes.EMPTY.h();
- } catch (Throwable throwable) {
+ /*} catch (Throwable throwable) { // Paper - remove try catch
CrashReport crashreport = CrashReport.a(throwable, "Getting fluid state");
CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Block being got");
@@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
});
throw new ReportedException(crashreport);
}
+ */ // Paper - remove try catch
}
// CraftBukkit start
diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java
index 64b625e988f..b7b06e082e5 100644
--- a/src/main/java/net/minecraft/server/ChunkSection.java
+++ b/src/main/java/net/minecraft/server/ChunkSection.java
@@ -0,0 +0,0 @@ public class ChunkSection {
}
public Fluid b(int i, int j, int k) {
- return ((IBlockData) this.blockIds.a(i, j, k)).getFluid();
+ return ((IBlockData) this.blockIds.a(i, j, k)).getFluid(); // Paper - diff on change - we expect this to be effectively just getType(x, y, z).getFluid(). If this changes we need to check other patches that use IBlockData#getFluid.
}
public void a() {
--