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From c2e8208e724845d130dbf63019835d6ea9088f3a Mon Sep 17 00:00:00 2001
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 4f28b8819..43b2be505 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);
+ 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(@Nullable PathEntity pathentity, double d0) {
if (pathentity == null) {
@@ -255,6 +271,7 @@ public abstract class NavigationAbstract {
}
public void o() {
+ this.pathfindFailures = 0; this.lastFailure = 0; // Paper - Pathfinding optimizations
this.c = null;
}
--
2.12.0.windows.1
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