mirror of
https://github.com/PurpurMC/Purpur.git
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64 lines
3.4 KiB
Diff
64 lines
3.4 KiB
Diff
From e9b38ffb7e164bd0afb0dfe8d4fd86c8b10beb90 Mon Sep 17 00:00:00 2001
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From: William Blake Galbreath <blake.galbreath@gmail.com>
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Date: Sat, 6 Jul 2019 21:12:58 -0500
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Subject: [PATCH] MC-4 Fix - Item position desync
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---
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src/main/java/net/minecraft/server/EntityTrackerEntry.java | 6 ++++++
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src/main/java/net/minecraft/server/PacketPlayOutEntity.java | 2 ++
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src/main/java/net/pl3x/purpur/PurpurConfig.java | 2 ++
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3 files changed, 10 insertions(+)
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diff --git a/src/main/java/net/minecraft/server/EntityTrackerEntry.java b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
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index 1f7c8f7da0..1589b46b75 100644
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--- a/src/main/java/net/minecraft/server/EntityTrackerEntry.java
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+++ b/src/main/java/net/minecraft/server/EntityTrackerEntry.java
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@@ -126,6 +126,12 @@ public class EntityTrackerEntry {
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j = MathHelper.d(this.tracker.pitch * 256.0F / 360.0F);
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Vec3D vec3d = this.tracker.getPositionVector().d(PacketPlayOutEntity.a(this.xLoc, this.yLoc, this.zLoc));
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boolean flag1 = vec3d.g() >= 7.62939453125E-6D;
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+ // Purpur start - fixes MC-4
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+ if (net.pl3x.purpur.PurpurConfig.fixItemPositionDesync && this.tracker instanceof EntityItem) {
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+ Vec3D loc = PacketPlayOutEntity.decrypt(PacketPlayOutEntity.encrypt(tracker.locX()), PacketPlayOutEntity.encrypt(tracker.locY()), PacketPlayOutEntity.encrypt(tracker.locZ()));
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+ tracker.setPosition(loc.getX(), loc.getY(), loc.getZ());
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+ }
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+ // Purpur end
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Packet<?> packet1 = null;
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boolean flag2 = flag1 || this.tickCounter % 60 == 0;
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boolean flag3 = Math.abs(i - this.yRot) >= 1 || Math.abs(j - this.xRot) >= 1;
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diff --git a/src/main/java/net/minecraft/server/PacketPlayOutEntity.java b/src/main/java/net/minecraft/server/PacketPlayOutEntity.java
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index 5b1d959354..0010448e3a 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayOutEntity.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayOutEntity.java
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@@ -14,10 +14,12 @@ public class PacketPlayOutEntity implements Packet<PacketListenerPlayOut> {
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protected boolean h;
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protected boolean i;
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+ public static long encrypt(double d) { return a(d); } // Purpur - OBFHELPER
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public static long a(double d0) {
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return MathHelper.d(d0 * 4096.0D);
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}
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+ public static Vec3D decrypt(long x, long y, long z) { return a(x, y, z); } // Purpur - OBFHELPER
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public static Vec3D a(long i, long j, long k) {
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return (new Vec3D((double) i, (double) j, (double) k)).a(2.44140625E-4D);
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}
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diff --git a/src/main/java/net/pl3x/purpur/PurpurConfig.java b/src/main/java/net/pl3x/purpur/PurpurConfig.java
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index e09cc77785..4d7795c938 100644
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--- a/src/main/java/net/pl3x/purpur/PurpurConfig.java
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+++ b/src/main/java/net/pl3x/purpur/PurpurConfig.java
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@@ -167,8 +167,10 @@ public class PurpurConfig {
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}
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public static boolean dontSendUselessEntityPackets = false;
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+ public static boolean fixItemPositionDesync = false;
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private static void dontSendUselessEntityPackets() {
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dontSendUselessEntityPackets = getBoolean("settings.dont-send-useless-entity-packets", dontSendUselessEntityPackets);
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+ fixItemPositionDesync = getBoolean("settings.fix-item-position-desync", fixItemPositionDesync);
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}
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public static boolean barrelSixRows = false;
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--
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2.24.0
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