diff --git a/Spigot-Server-Patches/0470-Optimize-Pathfinding.patch b/Spigot-Server-Patches/0470-Optimize-Pathfinding.patch new file mode 100644 index 0000000000..fe458977f5 --- /dev/null +++ b/Spigot-Server-Patches/0470-Optimize-Pathfinding.patch @@ -0,0 +1,56 @@ +From 04f3b8b466c40eae1a435e09bfdcd6f11994aa7e Mon Sep 17 00:00:00 2001 +From: Aikar +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 f06764973..dc32107ec 100644 +--- a/src/main/java/net/minecraft/server/NavigationAbstract.java ++++ b/src/main/java/net/minecraft/server/NavigationAbstract.java +@@ -11,7 +11,7 @@ public abstract class NavigationAbstract { + protected final EntityInsentient a; public Entity getEntity() { return a; } // Paper - OBFHELPER + protected final World b; + @Nullable +- protected PathEntity c; ++ protected PathEntity c; protected final PathEntity getCurrentPath() { return this.c; } // Paper - OBFHELPER + protected double d; + private final AttributeInstance p; + protected int e; +@@ -158,10 +158,30 @@ public abstract class NavigationAbstract { + return this.a(this.a(d0, d1, d2, 1), d3); + } + ++ // Paper start - optimise pathfinding ++ private int lastFailure = 0; ++ private int pathfindFailures = 0; ++ // Paper end ++ + public boolean a(Entity entity, double d0) { ++ // Paper start - Pathfinding optimizations ++ if (this.pathfindFailures > 10 && this.getCurrentPath() == null && MinecraftServer.currentTick < this.lastFailure + 40) { ++ return false; ++ } ++ // Paper end + PathEntity pathentity = this.a(entity, 1); + +- return pathentity != null && this.a(pathentity, d0); ++ // Paper start - Pathfinding optimizations ++ if (pathentity != null && this.a(pathentity, d0)) { ++ this.lastFailure = 0; ++ this.pathfindFailures = 0; ++ return true; ++ } else { ++ this.pathfindFailures++; ++ this.lastFailure = MinecraftServer.currentTick; ++ return false; ++ } ++ // Paper end + } + + public boolean setDestination(@Nullable PathEntity pathentity, double speed) { return a(pathentity, speed); } // Paper - OBFHELPER +-- +2.25.1 +