From 2e29af3df05ec0a383f48be549d1c03200756d24 Mon Sep 17 00:00:00 2001 From: Aikar Date: Tue, 22 Mar 2016 00:36:20 -0400 Subject: [PATCH] Use a Shared Random for Entities Reduces memory usage and provides ensures more randomness, Especially since a lot of garbage entity objects get created. --- ...104-Use-a-Shared-Random-for-Entities.patch | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Spigot-Server-Patches/0104-Use-a-Shared-Random-for-Entities.patch diff --git a/Spigot-Server-Patches/0104-Use-a-Shared-Random-for-Entities.patch b/Spigot-Server-Patches/0104-Use-a-Shared-Random-for-Entities.patch new file mode 100644 index 0000000000..d3142bc921 --- /dev/null +++ b/Spigot-Server-Patches/0104-Use-a-Shared-Random-for-Entities.patch @@ -0,0 +1,31 @@ +From 3e395ff227edb3569b55062d798d83d0ac448323 Mon Sep 17 00:00:00 2001 +From: Aikar +Date: Tue, 22 Mar 2016 00:33:47 -0400 +Subject: [PATCH] Use a Shared Random for Entities + +Reduces memory usage and provides ensures more randomness, Especially since a lot of garbage entity objects get created. + +diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java +index c28cf58..0f66b39 100644 +--- a/src/main/java/net/minecraft/server/Entity.java ++++ b/src/main/java/net/minecraft/server/Entity.java +@@ -45,6 +45,7 @@ public abstract class Entity implements ICommandListener { + + // CraftBukkit start + private static final int CURRENT_LEVEL = 2; ++ public static Random SHARED_RANDOM = new Random(); // Paper + static boolean isLevelAtLeast(NBTTagCompound tag, int level) { + return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level; + } +@@ -167,7 +168,7 @@ public abstract class Entity implements ICommandListener { + this.width = 0.6F; + this.length = 1.8F; + this.av = 1; +- this.random = new Random(); ++ this.random = SHARED_RANDOM; // Paper + this.maxFireTicks = 1; + this.justCreated = true; + this.uniqueID = MathHelper.a(this.random); +-- +2.7.4 +