Mirrors/ViaVersion
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Mirror von https://github.com/ViaVersion/ViaVersion.git synchronisiert 2024-12-25 15:50:10 +01:00
Code Issues Releases Aktivität

Merge pull request #96 from Mystalion/spawnegg-and-potions

Quellcode durchsuchen 
support for rewriting SpawnEggs
Dieser Commit ist enthalten in:
Myles 2016-03-03 21:03:50 +00:00
Commit 88ff4ee9ca
11 geänderte Dateien mit 388 neuen und 76 gelöschten Zeilen
Statistiken anzeigen Patch-Datei herunterladen Vergleichs-Datei herunterladen Alle Dateien ausklappen Alle Dateien einklappen

40
pom.xml
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@ -1,14 +1,29 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>us.myles</groupId>
<artifactId>ViaVersion</artifactId>
<version>1.0-SNAPSHOT</version>
<version>0.4.6</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.4</version>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
@ -18,8 +33,19 @@
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<dependencies>
<dependency>
<groupId>org.spacehq</groupId>
<artifactId>opennbt</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.bukkit</groupId>
<artifactId>bukkit</artifactId>
@ -50,5 +76,9 @@
<id>spigot-repo</id>
<url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
</repository>
</repositories>
<repository>
<id>spacehq-repo</id>
<url>https://repo.spacehq.org/content/repositories/releases/</url>
</repository>
</repositories>
</project>

9
src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java
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@ -14,6 +14,7 @@ import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;
import us.myles.ViaVersion.api.ViaVersion;
import us.myles.ViaVersion.api.ViaVersionAPI;
import us.myles.ViaVersion.commands.ViaVersionCommand;
import us.myles.ViaVersion.handlers.ViaVersionInitializer;
import us.myles.ViaVersion.util.ReflectionUtil;
@ -38,7 +39,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
return;
}
getLogger().info("ViaVersion enabled, injecting. (Allows 1.8 to be accessed via 1.9)");
getLogger().info("ViaVersion " + getDescription().getVersion() + " is now enabled, injecting. (Allows 1.8 to be accessed via 1.9)");
try {
injectPacketHandler();
System.setProperty("ViaVersion", getDescription().getVersion());
@ -52,6 +53,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
setPorted(e.getPlayer().getUniqueId(), false);
}
}, this);
getCommand("viaversion").setExecutor(new ViaVersionCommand());
}
public void injectPacketHandler() throws Exception {
@ -89,6 +91,11 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
return portedPlayers.contains(player.getUniqueId());
}
@Override
public String getVersion() {
return getDescription().getVersion();
}
public void setPorted(UUID id, boolean value) {
if (value) {
portedPlayers.add(id);

7
src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java
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@ -3,6 +3,11 @@ package us.myles.ViaVersion.api;
import org.bukkit.entity.Player;
public interface ViaVersionAPI {
/**
* Is player using 1.9?
* @param player
* @return
*/
boolean isPorted(Player player);
String getVersion();
}

191
src/main/java/us/myles/ViaVersion/api/slot/ItemSlotRewriter.java Normale Datei
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@ -0,0 +1,191 @@
package us.myles.ViaVersion.api.slot;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.bukkit.Material;
import org.spacehq.opennbt.tag.builtin.CompoundTag;
import org.spacehq.opennbt.tag.builtin.StringTag;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion.CancelException;
import us.myles.ViaVersion.util.PacketUtil;
public class ItemSlotRewriter {
public static void rewrite1_9To1_8(ByteBuf input, ByteBuf output) throws CancelException {
try {
ItemStack item = readItemStack(input);
fixIdsFrom1_9To1_8(item);
writeItemStack(item, output);
} catch (Exception e) {
System.out.println("Error while rewriting an item slot.");
e.printStackTrace();
throw new CancelException();
}
}
public static void rewrite1_8To1_9(ByteBuf input, ByteBuf output) throws CancelException {
try {
ItemStack item = readItemStack(input);
fixIdsFrom1_8To1_9(item);
writeItemStack(item, output);
} catch (Exception e) {
System.out.println("Error while rewriting an item slot.");
e.printStackTrace();
throw new CancelException();
}
}
public static void fixIdsFrom1_9To1_8(ItemStack item) {
if (item != null) {
if (item.id == Material.MONSTER_EGG.getId() && item.data == 0) {
CompoundTag tag = item.tag;
int data = 0;
if (tag != null && tag.get("EntityTag") instanceof CompoundTag) {
CompoundTag entityTag = tag.get("EntityTag");
if (entityTag.get("id") instanceof StringTag) {
StringTag id = entityTag.get("id");
data = ENTTIY_NAME_TO_ID.get(id.getValue());
}
}
item.tag = null;
item.data = (short) data;
}
}
}
public static void fixIdsFrom1_8To1_9(ItemStack item) {
if (item != null) {
if (item.id == Material.MONSTER_EGG.getId() && item.data != 0) {
CompoundTag tag = item.tag;
if (tag == null) {
tag = new CompoundTag("tag");
}
CompoundTag entityTag = new CompoundTag("EntityTag");
StringTag id = new StringTag("id", ENTTIY_ID_TO_NAME.get(Integer.valueOf(item.data)));
entityTag.put(id);
tag.put(entityTag);
item.tag = tag;
item.data = 0;
}
}
}
public static ItemStack readItemStack(ByteBuf input) throws IOException {
short id = input.readShort();
if (id < 0) {
return null;
} else {
ItemStack item = new ItemStack();
item.id = id;
item.amount = input.readByte();
item.data = input.readShort();
item.tag = PacketUtil.readNBT(input);
return item;
}
}
public static void writeItemStack(ItemStack item, ByteBuf output) throws IOException {
if (item == null) {
output.writeShort(-1);
} else {
output.writeShort(item.id);
output.writeByte(item.amount);
output.writeShort(item.data);
PacketUtil.writeNBT(output, item.tag);
}
}
public static class ItemStack {
private short id;
private byte amount;
private short data;
private CompoundTag tag;
public static ItemStack fromBukkit(org.bukkit.inventory.ItemStack stack) {
ItemStack item = new ItemStack();
item.id = (short) stack.getTypeId();
item.amount = (byte) stack.getAmount();
item.data = stack.getData().getData();
// TODO: nbt
return item;
}
}
private static Map<String, Integer> ENTTIY_NAME_TO_ID = new HashMap<>();
private static Map<Integer, String> ENTTIY_ID_TO_NAME = new HashMap<>();
static {
register(1, "Item");
register(2, "XPOrb");
register(7, "ThrownEgg");
register(8, "LeashKnot");
register(9, "Painting");
register(10, "Arrow");
register(11, "Snowball");
register(12, "Fireball");
register(13, "SmallFireball");
register(14, "ThrownEnderpearl");
register(15, "EyeOfEnderSignal");
register(16, "ThrownPotion");
register(17, "ThrownExpBottle");
register(18, "ItemFrame");
register(19, "WitherSkull");
register(20, "PrimedTnt");
register(21, "FallingSand");
register(22, "FireworksRocketEntity");
register(30, "ArmorStand");
register(40, "MinecartCommandBlock");
register(41, "Boat");
register(42, "MinecartRideable");
register(43, "MinecartChest");
register(44, "MinecartFurnace");
register(45, "MinecartTNT");
register(46, "MinecartHopper");
register(47, "MinecartSpawner");
register(48, "Mob");
register(49, "Monster");
register(50, "Creeper");
register(51, "Skeleton");
register(52, "Spider");
register(53, "Giant");
register(54, "Zombie");
register(55, "Slime");
register(56, "Ghast");
register(57, "PigZombie");
register(58, "Enderman");
register(59, "CaveSpider");
register(60, "Silverfish");
register(61, "Blaze");
register(62, "LavaSlime");
register(63, "EnderDragon");
register(64, "WitherBoss");
register(65, "Bat");
register(66, "Witch");
register(67, "Endermite");
register(68, "Guardian");
register(90, "Pig");
register(91, "Sheep");
register(92, "Cow");
register(93, "Chicken");
register(94, "Squid");
register(95, "Wolf");
register(96, "MushroomCow");
register(97, "SnowMan");
register(98, "Ozelot");
register(99, "VillagerGolem");
register(100, "EntityHorse");
register(101, "Rabbit");
register(120, "Villager");
register(200, "EnderCrystal");
}
private static void register(Integer id, String name) {
ENTTIY_ID_TO_NAME.put(id, name);
ENTTIY_NAME_TO_ID.put(name, id);
}
}

48
src/main/java/us/myles/ViaVersion/commands/ViaVersionCommand.java Normale Datei
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@ -0,0 +1,48 @@
package us.myles.ViaVersion.commands;
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import us.myles.ViaVersion.api.ViaVersion;
import java.util.ArrayList;
import java.util.List;
/**
* Created by fillefilip8 on 2016-03-03.
*/
public class ViaVersionCommand implements CommandExecutor {
@Override
public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
if (sender.hasPermission("viaversion.admin")) {
if (args.length == 0) {
sender.sendMessage(color("&aViaVersion &c" + ViaVersion.getInstance().getVersion()));
sender.sendMessage(color("&6Commands:"));
sender.sendMessage(color("&2/viaversion list &7- &6Shows lists of all 1.9 clients and 1.8 clients."));
} else if (args.length == 1) {
if (args[0].equalsIgnoreCase("list")) {
List<String> portedPlayers = new ArrayList<String>();
List<String> normalPlayers = new ArrayList<String>();
for (Player p : Bukkit.getOnlinePlayers()) {
if (ViaVersion.getInstance().isPorted(p)) {
portedPlayers.add(p.getName());
} else {
normalPlayers.add(p.getName());
}
}
sender.sendMessage(color("&8[&61.9&8]: &b" + portedPlayers.toString()));
sender.sendMessage(color("&8[&61.8&8]: &b" + normalPlayers.toString()));
}
}
}
return false;
}
public String color(String string){
return string.replace("&", "§");
}
}

15
src/main/java/us/myles/ViaVersion/metadata/MetadataRewriter.java
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@ -11,6 +11,8 @@ import org.bukkit.util.Vector;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack;
import us.myles.ViaVersion.util.PacketUtil;
public class MetadataRewriter {
@ -92,7 +94,9 @@ public class MetadataRewriter {
output.writeBoolean(((Byte) value).byteValue() != 0);
break;
case Slot:
PacketUtil.writeItem(value, output);
ItemStack item = (ItemStack) value;
ItemSlotRewriter.fixIdsFrom1_8To1_9(item);
ItemSlotRewriter.writeItemStack(item, output);
break;
case Position:
Vector vector = (Vector) value;
@ -148,8 +152,13 @@ public class MetadataRewriter {
case String:
entries.add(new Entry(index, PacketUtil.readString(buf)));
break;
case Slot:
entries.add(new Entry(index, PacketUtil.readItem(buf)));
case Slot: {
try {
entries.add(new Entry(index, ItemSlotRewriter.readItemStack(buf)));
} catch (Exception e) {
e.printStackTrace();
}
}
break;
case Position: {
int x = buf.readInt();

40
src/main/java/us/myles/ViaVersion/transformers/IncomingTransformer.java
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@ -5,6 +5,7 @@ import org.bukkit.inventory.ItemStack;
import us.myles.ViaVersion.CancelException;
import us.myles.ViaVersion.ConnectionInfo;
import us.myles.ViaVersion.ViaVersionPlugin;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter;
import us.myles.ViaVersion.packets.PacketType;
import us.myles.ViaVersion.packets.State;
import us.myles.ViaVersion.util.PacketUtil;
@ -126,7 +127,7 @@ public class IncomingTransformer {
output.writeByte(button);
output.writeShort(action);
output.writeByte(mode);
output.writeBytes(input);
ItemSlotRewriter.rewrite1_9To1_8(input, output);
return;
}
if (packet == PacketType.PLAY_CLIENT_SETTINGS) {
@ -179,22 +180,14 @@ public class IncomingTransformer {
int hand = PacketUtil.readVarInt(input);
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
Object item = null;
try {
Method m = ReflectionUtil.obc("inventory.CraftItemStack").getDeclaredMethod("asNMSCopy", ItemStack.class);
item = m.invoke(null, inHand);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack item = us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack.fromBukkit(inHand);
ItemSlotRewriter.fixIdsFrom1_9To1_8(item);
ItemSlotRewriter.writeItemStack(item, output);
} catch (Exception e) {
e.printStackTrace();
}
PacketUtil.writeItem(item, output);
short curX = input.readUnsignedByte();
output.writeByte(curX);
short curY = input.readUnsignedByte();
@ -211,26 +204,25 @@ public class IncomingTransformer {
output.writeByte(255);
// write item in hand
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
Object item = null;
try {
Method m = ReflectionUtil.obc("inventory.CraftItemStack").getDeclaredMethod("asNMSCopy", ItemStack.class);
item = m.invoke(null, inHand);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack item = us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack.fromBukkit(inHand);
ItemSlotRewriter.fixIdsFrom1_9To1_8(item);
ItemSlotRewriter.writeItemStack(item, output);
} catch (Exception e) {
e.printStackTrace();
}
PacketUtil.writeItem(item, output);
output.writeByte(-1);
output.writeByte(-1);
output.writeByte(-1);
return;
}
if (packet == PacketType.PLAY_CREATIVE_INVENTORY_ACTION) {
short slot = input.readShort();
output.writeShort(slot);
ItemSlotRewriter.rewrite1_9To1_8(input, output);
}
output.writeBytes(input);
}
}

27
src/main/java/us/myles/ViaVersion/transformers/OutgoingTransformer.java
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@ -11,6 +11,7 @@ import us.myles.ViaVersion.CancelException;
import us.myles.ViaVersion.ConnectionInfo;
import us.myles.ViaVersion.ViaVersionPlugin;
import us.myles.ViaVersion.api.ViaVersion;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter;
import us.myles.ViaVersion.metadata.MetadataRewriter;
import us.myles.ViaVersion.packets.PacketType;
import us.myles.ViaVersion.packets.State;
@ -225,7 +226,9 @@ public class OutgoingTransformer {
slot += 1; // add 1 so it's now 2-5
}
PacketUtil.writeVarInt(slot, output);
output.writeBytes(input);
ItemSlotRewriter.rewrite1_8To1_9(input, output);
return;
}
if (packet == PacketType.PLAY_ENTITY_METADATA) {
int id = PacketUtil.readVarInt(input);
@ -342,6 +345,28 @@ public class OutgoingTransformer {
output.writeBytes(input);
return;
}
if (packet == PacketType.PLAY_SET_SLOT) {
int windowId = input.readUnsignedByte();
output.writeByte(windowId);
short slot = input.readShort();
output.writeShort(slot);
ItemSlotRewriter.rewrite1_8To1_9(input, output);
return;
}
if (packet == PacketType.PLAY_WINDOW_ITEMS) {
int windowId = input.readUnsignedByte();
output.writeByte(windowId);
short count = input.readShort();
output.writeShort(count);
for (int i = 0; i < count; i++) {
ItemSlotRewriter.rewrite1_8To1_9(input, output);
}
return;
}
if (packet == PacketType.PLAY_SPAWN_MOB) {
int id = PacketUtil.readVarInt(input);
PacketUtil.writeVarInt(id, output);

66
src/main/java/us/myles/ViaVersion/util/PacketUtil.java
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@ -3,6 +3,8 @@ package us.myles.ViaVersion.util;
import com.google.common.base.Charsets;
import com.google.common.base.Preconditions;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufInputStream;
import io.netty.buffer.ByteBufOutputStream;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import io.netty.handler.codec.MessageToByteEncoder;
@ -11,6 +13,9 @@ import us.myles.ViaVersion.chunks.PacketChunk;
import us.myles.ViaVersion.chunks.PacketChunkData;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.nio.ByteBuffer;
@ -21,6 +26,9 @@ import java.util.BitSet;
import java.util.List;
import java.util.UUID;
import org.spacehq.opennbt.NBTIO;
import org.spacehq.opennbt.tag.builtin.CompoundTag;
public class PacketUtil {
private static Method DECODE_METHOD;
private static Method ENCODE_METHOD;
@ -42,6 +50,25 @@ public class PacketUtil {
}
}
public static CompoundTag readNBT(ByteBuf input) throws IOException {
int readerIndex = input.readerIndex();
byte b = input.readByte();
if (b == 0) {
return null;
} else {
input.readerIndex(readerIndex);
return (CompoundTag) NBTIO.readTag(new DataInputStream(new ByteBufInputStream(input)));
}
}
public static void writeNBT(ByteBuf output, CompoundTag tag) throws IOException {
if (tag == null) {
output.writeByte(0);
} else {
NBTIO.writeTag(new DataOutputStream(new ByteBufOutputStream(output)), tag);
}
}
public static List<Object> callDecode(ByteToMessageDecoder decoder, ChannelHandlerContext ctx, Object input) {
List<Object> output = new ArrayList<Object>();
try {
@ -354,45 +381,6 @@ public class PacketUtil {
return output;
}
public static void writeItem(Object value, ByteBuf output) {
try {
Class<?> serializer = ReflectionUtil.nms("PacketDataSerializer");
Object init = serializer.getDeclaredConstructor(ByteBuf.class).newInstance(output);
Method toCall = init.getClass().getDeclaredMethod("a", ReflectionUtil.nms("ItemStack"));
toCall.invoke(init, value);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
public static Object readItem(ByteBuf output) {
try {
Class<?> serializer = ReflectionUtil.nms("PacketDataSerializer");
Object init = serializer.getDeclaredConstructor(ByteBuf.class).newInstance(output);
Method toCall = init.getClass().getDeclaredMethod("i");
return toCall.invoke(init);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static long[] readBlockPosition(ByteBuf buf) {
long val = buf.readLong();
long x = (val >> 38); // signed

12
src/main/java/us/myles/ViaVersion/util/ReflectionUtil.java
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@ -27,6 +27,18 @@ public class ReflectionUtil {
return m.invoke(o);
}
public static <T> T getStatic(Class<?> clazz, String f, Class<T> t) throws NoSuchFieldException, IllegalAccessException {
Field field = clazz.getDeclaredField(f);
field.setAccessible(true);
return (T) field.get(null);
}
public static <T> T get(Object instance, Class<?> clazz, String f, Class<T> t) throws NoSuchFieldException, IllegalAccessException {
Field field = clazz.getDeclaredField(f);
field.setAccessible(true);
return (T) field.get(instance);
}
public static <T> T get(Object o, String f, Class<T> t) throws NoSuchFieldException, IllegalAccessException {
Field field = o.getClass().getDeclaredField(f);
field.setAccessible(true);

9
src/main/resources/plugin.yml
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@ -1,6 +1,11 @@
name: ViaVersion
main: us.myles.ViaVersion.ViaVersionPlugin
author: _MylesC
version: 0.4.6
version: ${version}
load: startup
loadbefore: [ProtocolLib, ProxyPipe]
loadbefore: [ProtocolLib, ProxyPipe]
commands:
viaversion:
description: Shows ViaVersion Version and more.
permission: viaversion.admin
aliases: [viaver]