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geforkt von Mirrors/Paper
Paper/patches/server/0461-Fix-Entity-Teleportation-and-cancel-velocity-if-tele.patch

84 Zeilen
5.0 KiB
Diff

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 25 Aug 2020 20:45:36 -0400
Subject: [PATCH] Fix Entity Teleportation and cancel velocity if teleported
Uses correct setPositionRotation for Entity teleporting instead of setLocation
as this is how Vanilla teleports entities.
Cancel any pending motion when teleported.
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 0080136d9aaead083fd1d94d2f7a0df250e3d9d8..7854073fccf6c3c2eff1acf0e4e6eac0dfcb9919 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -657,7 +657,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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return;
}
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- this.player.absMoveTo(this.awaitingPositionFromClient.x, this.awaitingPositionFromClient.y, this.awaitingPositionFromClient.z, this.player.getYRot(), this.player.getXRot());
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+ this.player.moveTo(this.awaitingPositionFromClient.x, this.awaitingPositionFromClient.y, this.awaitingPositionFromClient.z, this.player.getYRot(), this.player.getXRot()); // Paper - use proper moveTo for teleportation
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this.lastGoodX = this.awaitingPositionFromClient.x;
this.lastGoodY = this.awaitingPositionFromClient.y;
this.lastGoodZ = this.awaitingPositionFromClient.z;
@@ -1557,7 +1557,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
// CraftBukkit end
this.awaitingTeleportTime = this.tickCount;
- this.player.absMoveTo(d0, d1, d2, f, f1);
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+ this.player.moveTo(d0, d1, d2, f, f1); // Paper - use proper moveTo for teleportation
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this.player.connection.send(new ClientboundPlayerPositionPacket(d0 - d3, d1 - d4, d2 - d5, f - f2, f1 - f3, set, this.awaitingTeleport));
}
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 78af47c54f8dd3b1b4f81b740bcd438132c27947..d751bae633161abf9aa63197239e519c00676edf 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -159,6 +159,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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// CraftBukkit start
private static final int CURRENT_LEVEL = 2;
+ public boolean preserveMotion = true; // Paper - keep initial motion on first setPositionRotation
static boolean isLevelAtLeast(CompoundTag tag, int level) {
return tag.contains("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
}
@@ -1864,6 +1865,13 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
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}
public void moveTo(double x, double y, double z, float yaw, float pitch) {
+ // Paper - cancel entity velocity if teleported
+ if (!preserveMotion) {
+ this.deltaMovement = Vec3.ZERO;
+ } else {
+ this.preserveMotion = false;
+ }
+ // Paper end
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this.setPosRaw(x, y, z);
this.setYRot(yaw);
this.setXRot(pitch);
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diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
index 369298dfd437c1c83801f3d4ba63484ee1b969fe..ae2b95f53e875716489821dc9b0a3a35039bfcc9 100644
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--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
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@@ -167,6 +167,7 @@ public abstract class BaseSpawner {
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return;
}
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+ entity.preserveMotion = true; // Paper - preserve entity motion from tag
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entity.moveTo(entity.getX(), entity.getY(), entity.getZ(), randomsource.nextFloat() * 360.0F, 0.0F);
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if (entity instanceof Mob) {
Mob entityinsentient = (Mob) entity;
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 0498a83ceb4c009b76086dc44f80395efaab797e..747445306a19db2b89fa7cdfc5dcd7f361a69f54 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -579,7 +579,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
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}
// entity.setLocation() throws no event, and so cannot be cancelled
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- this.entity.absMoveTo(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
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+ entity.moveTo(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch()); // Paper - use proper moveTo, as per vanilla teleporting
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// SPIGOT-619: Force sync head rotation also
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this.entity.setYHeadRot(location.getYaw());