mirror of
https://github.com/Dreeam-qwq/Gale.git
synced 2025-12-22 00:09:25 +00:00
50 lines
2.5 KiB
Diff
50 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Martijn Muijsers <martijnmuijsers@live.nl>
|
|
Date: Wed, 23 Nov 2022 23:32:51 +0100
|
|
Subject: [PATCH] Optimize entity coordinate key
|
|
|
|
License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
|
|
Gale - https://galemc.org
|
|
|
|
This patch is based on the following patch:
|
|
"Optimize entity coordinate key"
|
|
By: Kevin Raneri <kevin.raneri@gmail.com>
|
|
As part of: Pufferfish (https://github.com/pufferfish-gg/Pufferfish)
|
|
Licensed under: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
|
|
|
|
* Pufferfish description *
|
|
|
|
When executing getCoordinateKey for entities (a hotpath), the JVM is
|
|
required to repeatedly cast doubles to longs. The performance impact of
|
|
this depends on the CPU architecture, but generally switching between
|
|
FPU and ALU incurs a significant performance hit. The casted/rounded
|
|
data is already available in the blockPosition struct, so we use that
|
|
instead of re-doing the casting.
|
|
|
|
diff --git a/src/main/java/io/papermc/paper/util/MCUtil.java b/src/main/java/io/papermc/paper/util/MCUtil.java
|
|
index adfb793ba2ca4552e0b800d37f166ea55562a57a..af49374eea8e85917687da19e8aa7491e560e41b 100644
|
|
--- a/src/main/java/io/papermc/paper/util/MCUtil.java
|
|
+++ b/src/main/java/io/papermc/paper/util/MCUtil.java
|
|
@@ -210,7 +210,7 @@ public final class MCUtil {
|
|
}
|
|
|
|
public static long getCoordinateKey(final Entity entity) {
|
|
- return ((long)(MCUtil.fastFloor(entity.getZ()) >> 4) << 32) | ((MCUtil.fastFloor(entity.getX()) >> 4) & 0xFFFFFFFFL);
|
|
+ return ((long)(entity.blockPosition.getZ() >> 4) << 32) | ((entity.blockPosition.getX() >> 4) & 0xFFFFFFFFL); // Gale - Pufferfish - optimize entity coordinate key - eliminate double->long cast in hotpath
|
|
}
|
|
|
|
public static long getCoordinateKey(final ChunkPos pair) {
|
|
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
index b0a18b5b1f3904093439b6993e32734eae3544fa..1939f5037376d5968a649c9d90f74edd592a7d5e 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -309,7 +309,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
|
|
public double yo;
|
|
public double zo;
|
|
private Vec3 position;
|
|
- private BlockPos blockPosition;
|
|
+ public BlockPos blockPosition; // Gale - Pufferfish - optimize entity coordinate key - private -> public
|
|
private ChunkPos chunkPosition;
|
|
private Vec3 deltaMovement;
|
|
private float yRot;
|