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SparklyPaperMC/patches/server/0007-Reduce-projectile-chunk-loading.patch
2021-07-05 14:18:38 -03:00

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2.7 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Sun, 13 Dec 2020 17:52:35 -0600
Subject: [PATCH] Reduce projectile chunk loading
Airplane
Copyright (C) 2020 Technove LLC
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
index 69f439851fe1ff07d827eaed274940a5783d5f6c..bfa2a1ad2bf8004d7545cd2175834fa00fcdb8bb 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -42,6 +42,37 @@ public abstract class Projectile extends Entity {
super(type, world);
}
+ // Airplane start
+ private static int loadedThisTick = 0;
+ private static int loadedTick;
+
+ private int buffered = 0;
+ @Override
+ public void setPos(double x, double y, double z) {
+ int currentTick = net.minecraft.server.MinecraftServer.currentTick;
+ if (loadedTick != currentTick) {
+ loadedTick = currentTick;
+ loadedThisTick = 0;
+ }
+ int previousX = Mth.floor(this.getX()) >> 4, previousZ = Mth.floor(this.getX()) >> 4;
+ int newX = Mth.floor(z) >> 4, newZ = Mth.floor(z) >> 4;
+ if (previousX != newX || previousZ != newZ) {
+ boolean isLoaded = ((net.minecraft.server.level.ServerChunkCache) this.level.getChunkSource()).getChunkAtIfLoadedMainThreadNoCache(newX, newZ) != null;
+ if (!isLoaded) {
+ if (loadedThisTick > 10) { // Airplane 10 = max chunks to load from projectiles in a tick todo config
+ if (++buffered > 20) { // Airplane 20 = max chunks a single projectile loads overall todo config
+ this.discard();
+ }
+ return;
+ }
+ loadedThisTick++;
+ }
+ buffered = 0;
+ }
+ super.setPos(x, y, z);
+ }
+ // Airplane start
+
public void setOwner(@Nullable Entity entity) {
if (entity != null) {
this.ownerUUID = entity.getUUID();