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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/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
index 436812c3bfe53358b4d76bb72d777d6661bb6d60..48c0de870a5bbf647309e69361dfb10ab56c65ab 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
@@ -209,13 +209,33 @@ public abstract class PathNavigation {
return this.moveTo(this.createPath(x, y, z, 1), speed);
}
+ // Paper start - Perf: Optimise pathfinding
+ private int lastFailure = 0;
+ private int pathfindFailures = 0;
+ // Paper end - Perf: Optimise pathfinding
+
public boolean moveTo(double x, double y, double z, int distance, double speed) {
return this.moveTo(this.createPath(x, y, z, distance), speed);
}
public boolean moveTo(Entity entity, double speed) {
+ // Paper start - Perf: Optimise pathfinding
+ if (this.pathfindFailures > 10 && this.path == null && net.minecraft.server.MinecraftServer.currentTick < this.lastFailure + 40) {
+ return false;
+ }
+ // Paper end - Perf: Optimise pathfinding
Path path = this.createPath(entity, 1);
- return path != null && this.moveTo(path, speed);
+ // Paper start - Perf: Optimise pathfinding
+ if (path != null && this.moveTo(path, speed)) {
+ this.lastFailure = 0;
+ this.pathfindFailures = 0;
+ return true;
+ } else {
+ this.pathfindFailures++;
+ this.lastFailure = net.minecraft.server.MinecraftServer.currentTick;
+ return false;
+ }
+ // Paper end - Perf: Optimise pathfinding
}
public boolean moveTo(@Nullable Path path, double speed) {
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