Paper/Spigot-Server-Patches/0063-Optimize-Pathfinding.patch

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From 91c5270071363c7ecd1366749af6a052545ad1ff Mon Sep 17 00:00:00 2001
2016-03-01 00:09:49 +01:00
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Mar 2016 02:02:07 -0600
Subject: [PATCH] Optimize Pathfinding
Prevents pathfinding from spamming failures for things such as
arrow attacks.
diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
index 2f4265a..7d794b9 100644
--- a/src/main/java/net/minecraft/server/NavigationAbstract.java
+++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
@@ -118,10 +118,26 @@ public abstract class NavigationAbstract {
}
public boolean a(Entity entity, double d0) {
+ // Paper start - Pathfinding optimizations
+ if (this.pathfindFailures > 10 && this.c == null && MinecraftServer.currentTick < this.lastFailure + 40) {
+ return false;
+ }
+
PathEntity pathentity = this.a(entity);
- return pathentity != null ? this.a(pathentity, d0) : false;
+ if (pathentity != null && this.a(pathentity, d0)) {
+ this.lastFailure = 0;
+ this.pathfindFailures = 0;
+ return true;
+ } else {
+ this.pathfindFailures++;
+ this.lastFailure = MinecraftServer.currentTick;
+ return false;
+ }
}
+ private int lastFailure = 0;
+ private int pathfindFailures = 0;
+ // Paper end
public boolean a(PathEntity pathentity, double d0) {
if (pathentity == null) {
@@ -254,6 +270,7 @@ public abstract class NavigationAbstract {
}
public void o() {
+ this.pathfindFailures = 0; this.lastFailure = 0; // Paper - Pathfinding optimizations
this.c = null;
}
--
2.7.2