PaperMC/Spigot-Server-Patches/0199-Cap-Entity-Collisions.patch
Aikar 82bcd1408a
Guard the Entity.SHARED_RANDOM from seed changes
I don't clearly see any, but as a protection for future changes.
2018-07-21 10:28:45 -04:00

60 lines
2.7 KiB
Diff

From 1ffe7e986e130686ef5b48ac41b63296f77b4e9c Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 22 Jan 2017 18:07:56 -0500
Subject: [PATCH] Cap Entity Collisions
Limit a single entity to colliding a max of configurable times per tick.
This will alleviate issues where living entities are hoarded in 1x1 pens
This is not tied to the maxEntityCramming rule. Cramming will still apply
just as it does in Vanilla, but entity pushing logic will be capped.
You can set this to 0 to disable collisions.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 5f06d4e5e..29b4bdb47 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -413,4 +413,10 @@ public class PaperWorldConfig {
private void armorStandEntityLookups() {
armorStandEntityLookups = getBoolean("armor-stands-do-collision-entity-lookups", true);
}
+
+ public int maxCollisionsPerEntity;
+ private void maxEntityCollision() {
+ maxCollisionsPerEntity = getInt( "max-entity-collisions", this.spigotConfig.getInt("max-entity-collisions", 8) );
+ log( "Max Entity Collisions: " + maxCollisionsPerEntity );
+ }
}
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 92b2bcb86..5a4de30fe 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -183,6 +183,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
public final boolean defaultActivationState;
public long activatedTick = Integer.MIN_VALUE;
public boolean fromMobSpawner;
+ protected int numCollisions = 0; // Paper
public void inactiveTick() { }
// Spigot end
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 38c043375..c97ee68a5 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -2191,8 +2191,11 @@ public abstract class EntityLiving extends Entity {
}
}
- for (j = 0; j < list.size(); ++j) {
+ numCollisions = Math.max(0, numCollisions - world.paperConfig.maxCollisionsPerEntity); // Paper
+ for (j = 0; j < list.size() && numCollisions < world.paperConfig.maxCollisionsPerEntity; ++j) { // Paper
Entity entity = (Entity) list.get(j);
+ entity.numCollisions++; // Paper
+ numCollisions++; // Paper
this.C(entity);
}
--
2.18.0