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Dreeam
2024-08-11 18:28:15 +08:00
parent cb54a09d9d
commit ee6983aa20
3 changed files with 163 additions and 0 deletions
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patches/unapplied/server/0029-Dont-send-useless-entity-packets.patch Normal file
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@@ -0,0 +1,57 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Sat, 6 Jul 2019 17:00:04 -0500
Subject: [PATCH] Dont send useless entity packets
Original code by PurpurMC, licensed under MIT
You can find the original code on https://github.com/PurpurMC/Purpur
diff --git a/src/main/java/dev/etil/mirai/MiraiConfig.java b/src/main/java/dev/etil/mirai/MiraiConfig.java
index 8717e40515dbc7cfbb5b45ce706f5c720596b5fc..d867baee944627e1a1419611fac2d3385350b182 100644
--- a/src/main/java/dev/etil/mirai/MiraiConfig.java
+++ b/src/main/java/dev/etil/mirai/MiraiConfig.java
@@ -152,4 +152,10 @@ public class MiraiConfig {
checkVehicleFlying = getBoolean("checks.vehicle-flight", true,
"Whether or not vanilla anticheat should check for passengers flying.");
}
+
+ public static boolean dontSendUselessEntityPackets;
+ private static void uselessEntityPackets() {
+ dontSendUselessEntityPackets = getBoolean("dont-send-useless-entity-packets", true,
+ "Whether or not server should send entity packets with null movements.");
+ }
}
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index da459fa2bd8ad4b05a0ae99552db2709a5169c2a..b99eeae741c1042ae5d925957a87481c113f9502 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -206,6 +206,7 @@ public class ServerEntity {
flag4 = true;
flag5 = true;
}
+ if (dev.etil.mirai.MiraiConfig.dontSendUselessEntityPackets && isUselessPacket(packet1)) packet1 = null; // Purpur
}
if ((this.trackDelta || this.entity.hasImpulse || this.entity instanceof LivingEntity && ((LivingEntity) this.entity).isFallFlying()) && this.tickCount > 0) {
@@ -278,6 +279,21 @@ public class ServerEntity {
});
}
+ // Purpur start
+ private boolean isUselessPacket(Packet<?> possibleUselessPacket) {
+ if (possibleUselessPacket instanceof ClientboundMoveEntityPacket packet) {
+ if (possibleUselessPacket instanceof ClientboundMoveEntityPacket.Pos) {
+ return packet.getXa() == 0 && packet.getYa() == 0 && packet.getZa() == 0;
+ } else if (possibleUselessPacket instanceof ClientboundMoveEntityPacket.PosRot) {
+ return packet.getXa() == 0 && packet.getYa() == 0 && packet.getZa() == 0 && packet.getyRot() == 0 && packet.getxRot() == 0;
+ } else if (possibleUselessPacket instanceof ClientboundMoveEntityPacket.Rot) {
+ return packet.getyRot() == 0 && packet.getxRot() == 0;
+ }
+ }
+ return false;
+ }
+ // Purpur end
+
public void removePairing(ServerPlayer player) {
this.entity.stopSeenByPlayer(player);
player.connection.send(new ClientboundRemoveEntitiesPacket(new int[]{this.entity.getId()}));