Mirror von
https://github.com/ViaVersion/ViaVersion.git
synchronisiert 2024-12-26 00:00:28 +01:00
Basic compatibility with ProtocolSupport, doesn't seem to work with 1.6.4 due to issues with our Login Handler.
Dieser Commit ist enthalten in:
Myles
Ursprung
91344a0b50
Commit
6534a5414e
@ -9,6 +9,7 @@ import lombok.Getter;
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import lombok.NonNull;
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import org.bukkit.Bukkit;
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import org.bukkit.entity.Player;
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import org.bukkit.plugin.Plugin;
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import org.bukkit.plugin.PluginDescriptionFile;
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import org.bukkit.plugin.java.JavaPlugin;
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import us.myles.ViaVersion.api.Pair;
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@ -48,6 +49,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
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private boolean compatSpigotBuild = false;
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private boolean spigot = true;
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private boolean lateBind = false;
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private boolean protocolSupport = false;
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@Getter
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private ViaConfig conf;
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@ -56,6 +58,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
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// Config magic
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conf = new ViaConfig(this);
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ViaVersion.setInstance(this);
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// Handle reloads
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if (System.getProperty("ViaVersion") != null) {
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if (Bukkit.getPluginManager().getPlugin("ProtocolLib") != null) {
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@ -69,19 +72,25 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
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}
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}
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// Spigot detector
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try {
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Class.forName("org.spigotmc.SpigotConfig");
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} catch (ClassNotFoundException e) {
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spigot = false;
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}
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// Check if it's a spigot build with a protocol mod
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try {
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compatSpigotBuild = ReflectionUtil.nms("PacketEncoder").getDeclaredField("version") != null;
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} catch (Exception e) {
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compatSpigotBuild = false;
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}
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// Generate classes needed (only works if it's compat)
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// Check if we're using protocol support too
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protocolSupport = Bukkit.getPluginManager().getPlugin("ProtocolSupport") != null;
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// Generate classes needed (only works if it's compat or ps)
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ClassGenerator.generate();
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lateBind = !isBinded();
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@ -435,6 +444,10 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
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}
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}
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public boolean isProtocolSupport() {
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return protocolSupport;
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}
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public Map<UUID, UserConnection> getPortedPlayers() {
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return portedPlayers;
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}
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@ -125,4 +125,11 @@ public interface ViaVersionAPI {
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* @return True if spigot
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*/
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boolean isSpigot();
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/**
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* Gets if protocol support is also being used.
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*
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* @return True if it is being used.
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*/
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boolean isProtocolSupport();
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}
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@ -3,6 +3,8 @@ package us.myles.ViaVersion.classgenerator;
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import javassist.*;
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import javassist.expr.ConstructorCall;
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import javassist.expr.ExprEditor;
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import org.bukkit.Bukkit;
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import org.bukkit.plugin.Plugin;
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import us.myles.ViaVersion.api.ViaVersion;
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import us.myles.ViaVersion.handlers.ViaDecodeHandler;
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import us.myles.ViaVersion.handlers.ViaEncodeHandler;
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@ -10,72 +12,93 @@ import us.myles.ViaVersion.util.ReflectionUtil;
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public class ClassGenerator {
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private static HandlerConstructor constructor = new BasicHandlerConstructor();
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private static String psPackage = null;
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public static HandlerConstructor getConstructor() {
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return constructor;
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}
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public static void generate() {
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if(!ViaVersion.getInstance().isCompatSpigotBuild()) return; // Use Basic Handler as not needed.
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if (ViaVersion.getInstance().isCompatSpigotBuild() || ViaVersion.getInstance().isProtocolSupport()) {
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try {
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ClassPool pool = ClassPool.getDefault();
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for (Plugin p : Bukkit.getPluginManager().getPlugins()) {
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pool.insertClassPath(new LoaderClassPath(p.getClass().getClassLoader()));
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}
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try {
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ClassPool pool = ClassPool.getDefault();
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pool.insertClassPath(new LoaderClassPath(ClassGenerator.class.getClassLoader()));
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// Generate the classes
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transformSuperclass(pool, ViaDecodeHandler.class, ReflectionUtil.nms("PacketDecoder"));
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transformSuperclass(pool, ViaEncodeHandler.class, ReflectionUtil.nms("PacketEncoder"));
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if (ViaVersion.getInstance().isCompatSpigotBuild()) {
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Class decodeSuper = ReflectionUtil.nms("PacketDecoder");
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Class encodeSuper = ReflectionUtil.nms("PacketEncoder");
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// Generate the classes
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addSpigotCompatibility(pool, ViaDecodeHandler.class, decodeSuper);
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addSpigotCompatibility(pool, ViaEncodeHandler.class, encodeSuper);
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} else {
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Class decodeSuper = Class.forName(getPSPackage() + ".wrapped.WrappedDecoder");
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Class encodeSuper = Class.forName(getPSPackage() + ".wrapped.WrappedEncoder");
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// Generate the classes
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addPSCompatibility(pool, ViaDecodeHandler.class, decodeSuper);
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addPSCompatibility(pool, ViaEncodeHandler.class, encodeSuper);
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}
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// Implement Constructor
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CtClass generated = pool.makeClass("us.myles.ViaVersion.classgenerator.generated.GeneratedConstructor");
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CtClass handlerInterface = pool.get(HandlerConstructor.class.getName());
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generated.setInterfaces(new CtClass[]{handlerInterface});
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// Import required classes
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pool.importPackage("us.myles.ViaVersion.classgenerator.generated");
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pool.importPackage("us.myles.ViaVersion.classgenerator");
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pool.importPackage("us.myles.ViaVersion.api.data");
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pool.importPackage("io.netty.handler.codec");
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// Implement Methods
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generated.addMethod(CtMethod.make("public MessageToByteEncoder newEncodeHandler(UserConnection info, MessageToByteEncoder minecraftEncoder) {\n" +
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" return new ViaEncodeHandler(info, minecraftEncoder);\n" +
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" }", generated));
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generated.addMethod(CtMethod.make("public ByteToMessageDecoder newDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {\n" +
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" return new ViaDecodeHandler(info, minecraftDecoder);\n" +
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" }", generated));
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// Implement Constructor
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CtClass generated = pool.makeClass("us.myles.ViaVersion.classgenerator.generated.GeneratedConstructor");
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CtClass handlerInterface = pool.get(HandlerConstructor.class.getName());
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constructor = (HandlerConstructor) generated.toClass(HandlerConstructor.class.getClassLoader()).newInstance();
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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} catch (CannotCompileException e) {
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e.printStackTrace();
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} catch (NotFoundException e) {
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e.printStackTrace();
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} catch (InstantiationException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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generated.setInterfaces(new CtClass[]{handlerInterface});
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// Import required classes
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pool.importPackage("us.myles.ViaVersion.classgenerator.generated");
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pool.importPackage("us.myles.ViaVersion.classgenerator");
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pool.importPackage("us.myles.ViaVersion.api.data");
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pool.importPackage("io.netty.handler.codec");
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// Implement Methods
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generated.addMethod(CtMethod.make("public MessageToByteEncoder newEncodeHandler(UserConnection info, MessageToByteEncoder minecraftEncoder) {\n" +
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" return new ViaEncodeHandler(info, minecraftEncoder);\n" +
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" }", generated));
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generated.addMethod(CtMethod.make("public ByteToMessageDecoder newDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {\n" +
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" return new ViaDecodeHandler(info, minecraftDecoder);\n" +
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" }", generated));
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constructor = (HandlerConstructor) generated.toClass(HandlerConstructor.class.getClassLoader()).newInstance();
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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} catch (CannotCompileException e) {
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e.printStackTrace();
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} catch (NotFoundException e) {
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e.printStackTrace();
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} catch (InstantiationException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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}
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}
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private static Class transformSuperclass(ClassPool pool, Class input, Class superclass) {
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private static Class addSpigotCompatibility(ClassPool pool, Class input, Class superclass) {
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String newName = "us.myles.ViaVersion.classgenerator.generated." + input.getSimpleName();
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try {
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CtClass toExtend = pool.get(superclass.getName());
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CtClass generated = pool.getAndRename(input.getName(), newName);
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generated.setSuperclass(toExtend);
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// Modify constructor to call super
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if(generated.getConstructors().length != 0) {
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generated.getConstructors()[0].instrument(new ExprEditor() {
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@Override
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public void edit(ConstructorCall c) throws CannotCompileException {
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if (c.isSuper()) {
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// Constructor for both has a stats thing.
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c.replace("super(null);");
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}
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super.edit(c);
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if (superclass != null) {
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CtClass toExtend = pool.get(superclass.getName());
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generated.setSuperclass(toExtend);
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// If it's NMS satisfy constructor.
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if (superclass.getName().startsWith("net.minecraft")) {
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// Modify constructor to call super
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if (generated.getConstructors().length != 0) {
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generated.getConstructors()[0].instrument(new ExprEditor() {
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@Override
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public void edit(ConstructorCall c) throws CannotCompileException {
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if (c.isSuper()) {
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// Constructor for both has a stats thing.
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c.replace("super(null);");
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}
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super.edit(c);
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}
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});
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}
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});
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}
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}
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return generated.toClass(HandlerConstructor.class.getClassLoader());
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} catch (NotFoundException e) {
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@ -85,4 +108,58 @@ public class ClassGenerator {
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}
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return null;
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}
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private static Class addPSCompatibility(ClassPool pool, Class input, Class superclass) {
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String newName = "us.myles.ViaVersion.classgenerator.generated." + input.getSimpleName();
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try {
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CtClass generated = pool.getAndRename(input.getName(), newName);
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if (superclass != null) {
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CtClass toExtend = pool.get(superclass.getName());
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generated.setSuperclass(toExtend);
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// Override setRealEncoder / setRealDecoder
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pool.importPackage(getPSPackage());
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pool.importPackage(getPSPackage() + ".wrapped");
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if (superclass.getName().endsWith("Decoder")) {
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// Decoder
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generated.addMethod(CtMethod.make("public void setRealDecoder(IPacketDecoder dec) {\n" +
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" WrappedDecoder decoder = new WrappedDecoder();" +
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" decoder.setRealDecoder(dec);\n" +
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" this.minecraftDecoder = decoder;\n" +
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" }", generated));
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} else {
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// Encoder
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generated.addMethod(CtMethod.make("public void setRealEncoder(IPacketEncoder enc) {\n" +
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" WrappedEncoder encoder = new WrappedEncoder();" +
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" encoder.setRealEncoder(enc);\n" +
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" this.minecraftEncoder = encoder;\n" +
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" }", generated));
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}
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}
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return generated.toClass(HandlerConstructor.class.getClassLoader());
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} catch (NotFoundException e) {
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e.printStackTrace();
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} catch (CannotCompileException e) {
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e.printStackTrace();
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}
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return null;
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}
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public static String getPSPackage() {
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if (psPackage == null) {
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try {
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Class.forName("protocolsupport.protocol.core.IPacketDecoder");
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psPackage = "protocolsupport.protocol.core";
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} catch (ClassNotFoundException e) {
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try {
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Class.forName("protocolsupport.protocol.pipeline.IPacketDecoder");
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psPackage = "protocolsupport.protocol.pipeline";
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} catch (ClassNotFoundException e1) {
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psPackage = "unknown";
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}
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}
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}
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return psPackage;
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}
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}
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@ -4,6 +4,7 @@ author: _MylesC
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version: ${project.version}
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load: postworld
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loadbefore: [ProtocolLib, ProxyPipe, SpigotLib, PacketListenerApi, SkinRestorer]
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softdepend: [ProtocolSupport]
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commands:
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viaversion:
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description: Shows ViaVersion Version and more.
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