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Minor code cleanup, cancel velocity packets the player shouldn't see. Fixes #331

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This commit is contained in:
libraryaddict 2019-01-16 19:58:53 +13:00
parent f883e96028
commit 23e63a5a63
5 changed files with 47 additions and 11 deletions
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5
src/main/java/me/libraryaddict/disguise/DisguiseListener.java
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@ -244,6 +244,11 @@ public class DisguiseListener implements Listener {
}
}
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
public void onVelocity(PlayerVelocityEvent event) {
DisguiseUtilities.setPlayerVelocity(event.getPlayer());
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onAttack(EntityDamageByEntityEvent event) {
if (DisguiseConfig.isDisguiseBlownWhenAttacked() && event.getEntity() instanceof Player) {

16
src/main/java/me/libraryaddict/disguise/commands/DisguisePlayerCommand.java
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@ -44,19 +44,19 @@ public class DisguisePlayerCommand extends DisguiseBaseCommand implements TabCom
return true;
}
Entity player = Bukkit.getPlayer(args[0]);
Entity entity = Bukkit.getPlayer(args[0]);
if (player == null) {
if (entity == null) {
if (args[0].contains("-")) {
try {
player = Bukkit.getEntity(UUID.fromString(args[0]));
entity = Bukkit.getEntity(UUID.fromString(args[0]));
}
catch (Exception ignored) {
}
}
}
if (player == null) {
if (entity == null) {
sender.sendMessage(LibsMsg.CANNOT_FIND_PLAYER.get(args[0]));
return true;
}
@ -95,14 +95,14 @@ public class DisguisePlayerCommand extends DisguiseBaseCommand implements TabCom
if (DisguiseConfig.isNameOfPlayerShownAboveDisguise()) {
if (disguise.getWatcher() instanceof LivingWatcher) {
disguise.getWatcher().setCustomName(getDisplayName(player));
disguise.getWatcher().setCustomName(getDisplayName(entity));
if (DisguiseConfig.isNameAboveHeadAlwaysVisible()) {
disguise.getWatcher().setCustomNameVisible(true);
}
}
}
disguise.setEntity(player);
disguise.setEntity(entity);
if (!setViewDisguise(args)) {
// They prefer to have the opposite of whatever the view disguises option is
@ -115,11 +115,11 @@ public class DisguisePlayerCommand extends DisguiseBaseCommand implements TabCom
if (disguise.isDisguiseInUse()) {
sender.sendMessage(LibsMsg.DISG_PLAYER_AS_DISG
.get(player instanceof Player ? player.getName() : DisguiseType.getType(player).toReadable(),
.get(entity instanceof Player ? entity.getName() : DisguiseType.getType(entity).toReadable(),
disguise.getType().toReadable()));
} else {
sender.sendMessage(LibsMsg.DISG_PLAYER_AS_DISG_FAIL
.get(player instanceof Player ? player.getName() : DisguiseType.getType(player).toReadable(),
.get(entity instanceof Player ? entity.getName() : DisguiseType.getType(entity).toReadable(),
disguise.getType().toReadable()));
}

12
src/main/java/me/libraryaddict/disguise/disguisetypes/Disguise.java
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@ -257,18 +257,24 @@ public abstract class Disguise {
StructureModifier<Integer> mods = velocityPacket.getIntegers();
// Write entity ID
mods.write(0, getEntity().getEntityId());
mods.write(1, (int) (vector.getX() * 8000));
mods.write(3, (int) (vector.getZ() * 8000));
for (Player player : DisguiseUtilities.getPerverts(disguise)) {
PacketContainer tempVelocityPacket = velocityPacket.shallowClone();
mods = tempVelocityPacket.getIntegers();
// If the viewing player is the disguised player
if (getEntity() == player) {
// If not using self disguise, continue
if (!isSelfDisguiseVisible()) {
continue;
}
// Write self disguise ID
mods.write(0, DisguiseAPI.getSelfDisguiseId());
} else {
mods.write(0, getEntity().getEntityId());
}
mods.write(2,
@ -280,7 +286,7 @@ public abstract class Disguise {
}
ProtocolLibrary.getProtocolManager()
.sendServerPacket(player, velocityPacket.shallowClone(), false);
.sendServerPacket(player, tempVelocityPacket, false);
}
}
catch (Exception e) {

19
src/main/java/me/libraryaddict/disguise/utilities/DisguiseUtilities.java
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@ -81,6 +81,25 @@ public class DisguiseUtilities {
private static Gson gson;
private static boolean pluginsUsed, commandsUsed;
private static long libsDisguisesCalled;
/**
* Keeps track of what tick this occured
*/
private static long velocityTime;
private static int velocityID;
public static void setPlayerVelocity(Player player) {
velocityID = player.getEntityId();
velocityTime = player.getWorld().getTime();
}
/**
* Returns if this velocity is due to a PlayerVelocityEvent
*/
public static boolean isPlayerVelocity(Player player) {
// Be generous with how many ticks they have until they jump, the server could be lagging and the player
// would effectively have anti-knockback
return player.getEntityId() == velocityID && (player.getWorld().getTime() - velocityTime) < 3;
}
public static void setPluginsUsed() {
if (libsDisguisesCalled > System.currentTimeMillis()) {

6
src/main/java/me/libraryaddict/disguise/utilities/packets/packetlisteners/PacketListenerViewSelfDisguise.java
View File

@ -12,6 +12,7 @@ import com.comphenix.protocol.wrappers.WrappedWatchableObject;
import me.libraryaddict.disguise.DisguiseAPI;
import me.libraryaddict.disguise.LibsDisguises;
import me.libraryaddict.disguise.disguisetypes.Disguise;
import me.libraryaddict.disguise.utilities.DisguiseUtilities;
import me.libraryaddict.disguise.utilities.packets.LibsPackets;
import me.libraryaddict.disguise.utilities.packets.PacketsManager;
import me.libraryaddict.disguise.utilities.reflection.ReflectionManager;
@ -168,6 +169,11 @@ public class PacketListenerViewSelfDisguise extends PacketAdapter {
packet.getBytes().read(0) == 2) {
event.setCancelled(true);
}
} else if (event.getPacketType() == Server.ENTITY_VELOCITY &&
!DisguiseUtilities.isPlayerVelocity(observer)) {
// The player only sees velocity changes when there is a velocity event. As the method claims there
// was no velocity event...
event.setCancelled(true);
}
}
catch (Exception ex) {