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Paper-Old/patches/server/0786-Send-full-pos-packets-for-hard-colliding-entities.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Tue, 16 Feb 2021 00:16:56 -0800
Subject: [PATCH] Send full pos packets for hard colliding entities
Prevent collision problems due to desync (i.e boats)
Configurable under
`send-full-pos-for-hard-colliding-entities`
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index b0ea9aefb6e652388becb79d4b19433fe3717c87..f421e6a2e43e0a673dbb8a9a2b4331387e523e02 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -648,4 +648,10 @@ public class PaperConfig {
private static void lagCompensateBlockBreaking() {
lagCompensateBlockBreaking = getBoolean("settings.lag-compensate-block-breaking", true);
}
+
+ public static boolean sendFullPosForHardCollidingEntities;
+
+ private static void sendFullPosForHardCollidingEntities() {
+ sendFullPosForHardCollidingEntities = getBoolean("settings.send-full-pos-for-hard-colliding-entities", true);
+ }
}
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index 9950541e0432240207458274b76b1c5d402ac704..b7c9294fdd3d799d410afba4a1118aa371c98533 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -173,7 +173,7 @@ public class ServerEntity {
// Paper end - remove allocation of Vec3D here
boolean flag4 = k < -32768L || k > 32767L || l < -32768L || l > 32767L || i1 < -32768L || i1 > 32767L;
- if (!flag4 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.isOnGround()) {
+ if (!flag4 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.isOnGround() && !(com.destroystokyo.paper.PaperConfig.sendFullPosForHardCollidingEntities && this.entity.hardCollides())) { // Paper - send full pos for hard colliding entities to prevent collision problems due to desync
if ((!flag2 || !flag3) && !(this.entity instanceof AbstractArrow)) {
if (flag2) {
packet1 = new ClientboundMoveEntityPacket.Pos(this.entity.getId(), (short) ((int) k), (short) ((int) l), (short) ((int) i1), this.entity.isOnGround());