import org.apache.bcel.classfile.*;
import java.util.jar.JarInputStream;
import java.util.zip.ZipEntry;
import java.io.FileInputStream;
import java.io.File;
import java.io.IOException;

public class AccessorMethodsGen{
    String entityclass = null;
    String npcclass = null;
    public static void main(String[] args){
        AccessorMethodsGen am = new AccessorMethodsGen();
        am.new NPC();
        am.new Player();
        am.new StringWrapper();
    }
    public class Player{
        String s = null;
        public Player(){
            try{
                JarInputStream jis = new JarInputStream(new FileInputStream(new File("runescape.jar")));
                ZipEntry ze;
                while((ze = jis.getNextEntry()) != null){
                    if(ze.getName().endsWith(".class")){
                        runCheck1(new ClassParser(jis, ze.getName()).parse());
                        if(s != null){
                            System.out.println("Player class is "+s);
                            return;
                        }
                    }
                }
            }
            catch(NullPointerException e){}
            catch(Exception e){ e.printStackTrace();}
            System.out.println("Failed!");
        }
        public void runCheck1(JavaClass jc){
            if(jc.getSuperclassName().equals(entityclass) && !jc.getClassName().equals(npcclass)) s = jc.getClassName();
        }
    }
    public class StringWrapper{
        String s = null;
        public StringWrapper(){
            try{
                JarInputStream jis = new JarInputStream(new FileInputStream(new File("runescape.jar")));
                ZipEntry ze;
                while((ze = jis.getNextEntry()) != null){
                    if(ze.getName().endsWith(".class")){
                        runCheck1(new ClassParser(jis, ze.getName()).parse());
                        if(s != null){
                            System.out.println("String wrapper class is "+s);
                            return;
                        }
                    }
                }
            }
            catch(NullPointerException e){}
            catch(Exception e){ e.printStackTrace();}
            System.out.println("Failed!");
        }
        public void runCheck1(JavaClass jc){
            if(jc.getSuperclassName().endsWith("Object") && !jc.isAbstract()){
                for(Method m : jc.getMethods()){
                    if(m.getName().equals("toString")){
                        for(Field f : jc.getFields()){
                            if(f.getType().toString().equals("byte[]")) s = jc.getClassName();
                        }
                    }
                }
            }
        }
    }
    public class NPC{
        public NPC(){
            try{
                JarInputStream jis = new JarInputStream(new FileInputStream(new File("runescape.jar")));
                ZipEntry ze;
                while((ze = jis.getNextEntry()) != null){
                    if(ze.getName().endsWith(".class")){
                        runCheck1(new ClassParser(jis, ze.getName()).parse());
                        if(npcclass != null){
                            System.out.println("NPC class is "+ npcclass);
                            return;
                        }
                    }
                }
            }
            catch(NullPointerException e){}
            catch(Exception e){ e.printStackTrace();}
            System.out.println("Failed!");
        }
        public boolean runCheck1(JavaClass input){
            if(!input.getSuperclassName().endsWith("Object")){
                int nonStaticCount = 0;
                for(Field f : input.getFields()){
                    if(!f.isStatic() && !f.isPrivate()){
                        nonStaticCount++;
                    }
                }
                if(nonStaticCount == 1){
                    try{
                        if(getSubclasses(input.getSuperClass()) == 2 && getSubclasses(input) == 0 && !input.getSuperClass().getSuperClass().getSuperclassName().endsWith("Object")){
                            npcclass = input.getClassName();
                            System.out.println("Entity class is "+(entityclass = input.getSuperclassName()));
                            return true;
                        }
                    }
                    catch(ClassNotFoundException e){ return false; }
                }
            }
            return false;
        }
        public int getSubclasses(JavaClass jc){
            int i = 0;
            try{
                JarInputStream jis = new JarInputStream(new FileInputStream(new File("runescape.jar")));
                ZipEntry ze;
                while((ze = jis.getNextEntry()) != null){
                    if(ze.getName().endsWith(".class")){
                        JavaClass jav = new ClassParser(jis, ze.getName()).parse();
                        if(jav.getSuperclassName().equals(jc.getClassName())) i++;
                    }
                }
            }
            catch(IOException e){ return 0; }
            return i;
        }
    }
}