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Paper/Spigot-Server-Patches/0438-Optimize-Pathfinding.patch
Gabscap 7ae47d4eb3
[CI-SKIP] Remove Waving banner fix (#4786)
Mojang fixed it in MC-63720
2020-11-19 10:15:16 -05:00

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2.2 KiB
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From 0000000000000000000000000000000000000000 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 64b991859f0f3ca7d932b8acc8aeed401e22a388..1558c5f8256f50be6850f1d7f70eee3e8ec76496 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;
protected int e;
protected int f;
@@ -163,10 +163,30 @@ 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