PaperMC/Spigot-Server-Patches/0469-Optimize-Pathfinding.patch
Aikar 57dd397155
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:57 -04:00

56 lines
2.2 KiB
Diff

From d80ac90428fba1fbc926e48af6d01dae922bafb1 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 f06764973f..dc32107ec3 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
--
2.26.2