Thread: npcdrop in cfg file

hello i got a litle problem and i cant get it fixet can somebody help me please?
This are my errors :

Code:

.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
.\palidino76\rs2\npcs\NPC.java:251: cannot find symbol
symbol  : class Player
location: class palidino76.rs2.npcs.NPC
        public void npcDied(Player p, int npcID, int abSX, int abSY) {
                            ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                        ^
.\palidino76\rs2\npcs\NPC.java:254: cannot find symbol
symbol  : class PlayerItems
location: class palidino76.rs2.npcs.NPC
                        PlayerItems pi = new PlayerItems();
                                             ^
.\palidino76\rs2\npcs\NPC.java:272: cannot find symbol
symbol  : variable Misc
location: class palidino76.rs2.npcs.NPC

if (Misc.random(3) == 1) {

    ^
4 errors
Druk op een toets om door te gaan. . .

and this are the file's :
Npc.java :

Code:

package palidino76.rs2.npcs;

import java.io.*;
import java.util.*;
import palidino76.rs2.Engine;

public class NPC {
    /**
     * The position this NPC is stored in the npc array in the Engine class.
     */
    public int npcId = -1;
    /**
     * The NPC's id, such as 50 for king black dragon.
     */
    public int npcType = 0;
    /**
     * The name of this NPC.
     */
    public String name = "";
    /**
     * If it should hit 0 HP, how long it should take to respawn.
     */
    public int respawnDelay = 60;
    /**
     * Its combat level, used for calculating its accuracy and defence.
     */
    public int combatLevel = 0;
    /**
     * Max hitpoints it can have.
     */
    public int maxHP = 0;
    /**
     * The basic max hit it can have, with an attack method you  can get more specific.
     */
    public int maxHit = 0;
    /**
     * Attack type, 0 for melee, 1 for range, 2 for magic.
     */
    public int atkType = 0;
    /**
     * The weakness, same setup as atkType.
     */
    public int weakness = 0;
    /**
     * The current HP this NPC has.
     */
    public int currentHP = 0;
    /**
     * The direction this NPC is moving in.
     */
    public int direction = -1;
    /**
     * The height level its at.
     */
    public int heightLevel = 0;
    /**
     * Request for updating facing.
     */
    public boolean faceToUpdateReq = false;
    public int faceToRequest = -1;
    /**
     * If the NPC is dead or not.
     */
    public boolean isDead = false;
    /**
     * If the death emote has been requested, move on to the next part of the death process.
     */
    public boolean deadEmoteDone = false;
    /**
     * Hide the NPC until it is ready to respawn.
     */
    public boolean hiddenNPC = false;
    /**
     * Absolute positioning.
     */
    public int absX = 0, absY = 0;
    /**
     * If false, the NPC will not respawn if it dies.
     */
    public boolean needsRespawn = false;
    /**
     * If set to true, this NPC will randomly walk around.
     */
    public boolean randomWalk = true;
    /**
     * If an update is needed.
     */
    public boolean updateReq = false;
    /**
     * If the NPC should speak.
     */
    public boolean speakTextUpdateReq = false;
    public String speakText = "";
    /**
     * Hit requests.
     */
    public boolean hit1UpdateReq = false;
    public boolean hit2UpdateReq = false;
    public int hitDiff1 = 0;
    public int posionHit1 = 0;
    public int hitDiff2 = 0;
    public int posionHit2 = 0;
    /**
     * Animation request.
     */
    public boolean animUpdateReq = false;
    public int animRequest = 65535;
    public int animDelay = 0;
    /**
     * Graphic request.
     */
    public boolean gfxUpdateReq = false;
    public int gfxRequest = 65535;
    public int gfxDelay = 0;
    /**
     * Facing request.
     */
    public boolean faceCoordsUpdateReq = false;
    public int faceCoordsX = -1;
    public int faceCoordsY = -1;
    /**
     * The area this NPC can randomly walk around.
     */
    public int moveRangeX1 = 0;
    public int moveRangeY1 = 0;
    public int moveRangeX2 = 0;
    public int moveRangeY2 = 0;
    /**
     * What should be added onto the absolute positioning if this NPC moves.
     */
    public int moveX = 0;
    public int moveY = 0;
    /**
     * The original position the NPC spawned at.
     */
    public int makeX = 0;
    public int makeY = 0;
    /**
     * Delay before the NPC can attack again.
     */
    public int combatDelay = 0;

    /**
     * Constructs a new NPC class.
     * @param type The type of NPC.
     * @param index The position the NPC is at.
     */
    public NPC(int type, int index) {
        npcType = type;
        npcId = index;
    }

    /**
     * This method is called every 600 milliseconds.
     */
    public void process() {
        if (respawnDelay > 0 && isDead) {
            respawnDelay--;
        }
        if (combatDelay > 0) {
            combatDelay--;
        }
    }

    /**
     * Request an animation for this NPC.
     * @param animId The amination to perform.
     * @param animD The delay before doing the animation.
     */
    public void requestAnim(int animId, int animD) {
        animRequest = animId;
        animDelay = animD;
        animUpdateReq = true;
        updateReq = true;
    }

    /**
     * Request text for this NPC.
     * @param message The message to make the NPC say.
     */
    public void requestText(String message) {
        speakText = message;
        animUpdateReq = true;
        speakTextUpdateReq = true;
    }

    /**
     * Request an graphic for this NPC.
     * @param gfxId The graphic to perform.
     * @param gfxD The delay or height or the gfx depending on the value.
     */
    public void requestGFX(int gfxId, int gfxD) {
        if (gfxD >= 100) {
            gfxD += 6553500;
        }
        gfxRequest = gfxId;
        gfxDelay = gfxD;
        gfxUpdateReq = true;
        updateReq = true;
    }

    /**
     * Request this NPC faces two coordinates.
     * @param x The x coordinate to face.
     * @param y The y coordinate to face.
     */
    public void requestFaceCoords(int x, int y) {
        faceCoordsX = 2 * x + 1;
        faceCoordsY = 2 * y + 1;
        faceCoordsUpdateReq = true;
        updateReq = true;
    }

    /**
     * Request this NPC faces another NPC or player.
     * @param faceId The target to face.
     */
    public void requestFaceTo(int faceId) {
        faceToRequest = faceId;
        faceToUpdateReq = true;
        updateReq = true;
    }

    /**
     * Add damage to this NPC.
     * @param damage To amount of damage.
     * @param posion 0 for normal damage, 1 for posion.
     */
    public void appendHit(int damage, int posion) {
        if (damage > currentHP) {
            damage = currentHP;
        }
        currentHP -= damage;
        if (currentHP <= 0) {
            currentHP = 0;
            isDead = true;
        }
        if (!hit1UpdateReq) {
            hitDiff1 = damage;
            posionHit1 = posion;
            hit1UpdateReq = true;
        } else {
            hitDiff2 = damage;
            posionHit2 = posion;
            hit2UpdateReq = true;
        }
        updateReq = true;
    }
	public boolean npccanloot=false;

	public void npcDied(Player p, int npcID, int abSX, int abSY) {	
		Random rand = new Random();
		try {
			PlayerItems pi = new PlayerItems();
	        BufferedReader in = new BufferedReader(new FileReader("./data/npcs/npcdrops.cfg"));
	        String input;
	        int on = 0;
	        String[] splitEQL;
	        String[] splitCOM;
	        String[] splitDSH;
	        String[] splitCLN;
	        String[] splitSCL;
				while ((input = in.readLine()) != null) {
					splitEQL = null; splitEQL = null; splitDSH = null; splitCLN = null; splitSCL = null;
					if (!input.startsWith("/") && input.contains("=") && input.contains(",") && input.contains("-") && input.contains(":")) {
						try {
						splitEQL = input.split("=");
							if (Integer.parseInt(splitEQL[0]) == npcID) {
								splitSCL = splitEQL[1].split(";");
								int Wealth=0;
									if (p.equipment[2] == 2572) {
										if (Misc.random(3) == 1) {
											Wealth=10;
										}
									}
									for (int i = Wealth; i < splitSCL.length; i++) {
										splitCOM = splitSCL[i].split(",");
										splitDSH = splitCOM[1].split("-");
										splitCLN = splitCOM[2].split(":");
										int item = Integer.parseInt(splitCOM[0]);
										int min = Integer.parseInt(splitDSH[0]);
										int max = Integer.parseInt(splitDSH[1]);
										int chance = Integer.parseInt(splitCLN[0]);
										int outOf = Integer.parseInt(splitCLN[1]);
										int amount = rand.nextInt((max - min)+1) + min; 
										int ifDrop = rand.nextInt(outOf)+1;
											if (ifDrop <= chance && npccanloot == true) {
												Engine.items.createGroundItem(item, amount, abSX, abSY, heightLevel, p.username);
												npccanloot = false;
											}
									}
							}
						} catch (Exception e) {							
							System.out.println("Exception dropping item:\n"+e);
						}
						++on;
					}
				}
				in.close();
			} catch (IOException e) {
				System.out.println(e);
			}
	}
}

engine.java :

Code:

/*
 * Class Engine
 *
 * Version 1.0
 *
 * Thursday, August 14, 2008
 *
 * Created by Palidino76
 */

package palidino76.rs2;

import java.net.Socket;
import palidino76.rs2.players.Player;
import palidino76.rs2.players.items.*;
import palidino76.rs2.players.update.*;
import palidino76.rs2.players.combat.PlayerCombat;
import palidino76.rs2.world.mapdata.MapData;
import palidino76.rs2.world.items.Items;
import palidino76.rs2.io.*;
import palidino76.rs2.util.Misc;
import palidino76.rs2.npcs.NPC;
import palidino76.rs2.npcs.update.*;
import palidino76.rs2.npcs.loading.*;

public class Engine implements Runnable {
    /**
     * When a new player logs in, a new player is created and stored in this array.
     * <p>The server cannot exceed 2000 players.
     * The id 0 cannot be used as it is not handled by the client corrently.
     */
    public static Player[] players = new Player[2000];
    /**
     * Max id an NPC can have loaded out of the npclist config.
     */
    public static int maxListedNPCs = 8045;
    /**
     * When a new NPC is created, it is stored in this array.
     * <p>There can not be more than 5000 NPCs spawned at a time.
     * The id 0 cannot be used as it is not handled by the client corrently.
     */
    public static NPC[] npcs = new NPC[5000];
    /**
     * Contains NPC data such as respawn times, names, examines, etc.
     */
    public static NPCList[] npcLists = new NPCList[maxListedNPCs];
    /**
     * The class thread.
     */
    private Thread engineThread = new Thread(this);
    /**
     * Set true if the engine should run.
     */
    private boolean engineRunning = true;
    /**
     * Handles packets recieved from the server.
     */
    public static Packets packets = new Packets();
    /**
     * Loads and stores map data for map regions.
     */
    public static MapData mapData = new MapData();
    /**
     * Contains a method for every known frame.
     */
    public static Frames frames = new Frames();
    /**
     * Handles player movement.
     */
    public static PlayerMovement playerMovement = new PlayerMovement();
    /**
     * Contains all item information.
     */
    public static Items items;
    /**
     * Handles player updates.
     */
    public static PlayerUpdate playerUpdate = new PlayerUpdate();
    /**
     * Handles NPC movement.
     */
    public static NPCMovement npcMovement = new NPCMovement();
    /**
     * Handles NPC updates.
     */
    public static NPCUpdate npcUpdate = new NPCUpdate();
    /**
     * Handles players items.
     */
    public static PlayerItems playerItems = new PlayerItems();
    /**
     * Handles file saving and loading.
     */
    public static FileManager fileManager = new FileManager();
    public static PlayerBank playerBank = new PlayerBank();
    public static PlayerCombat playerCombat = new PlayerCombat();

    /**
     * Constructs a new Engine and loads item and NPC data from configs.
     */
    public Engine() {
        items = new Items(this);
        LoadNPCLists lnl = new LoadNPCLists();
        lnl = null;
        engineThread.start();
    }

    /**
     * The thread's process.
     * <p>This processes at a rate of 100 milliseconds, and the processing time
     * is subtracted from the amount of time it sleeps to keep at a rate of 100
     * milliseonds. Packets are checked every 100 milliseconds for faster response time,
     * and most other updates are processed every 600 milliseconds.
     */
    public void run() {
        long lastEntityUpdate = 0;
        long curTime;
        while (engineRunning) {
            curTime = System.currentTimeMillis();
            connectAwaitingPlayers();
            packets.parseIncomingPackets();
            if (curTime - lastEntityUpdate >= 600) {
                items.process();
                for (Player p : players) {
                    // Proccess and player movement, removing disconnected players.
                    if (p == null || !p.online) {
                        continue;
                    }
                    if (p.disconnected[0] && p.disconnected[1]) {
                        removePlayer(p.playerId);
                        continue;
                    }
                    p.process();
                    playerMovement.getNextPlayerMovement(p);
                }
                for (Player p: players) {
                    // Update players.
                    if (p == null || !p.online) {
                        continue;
                    }
                    playerUpdate.update(p);
                }
                for (Player p : players) {
                    // Reset masks and send bytes.
                    if (p == null || !p.online) {
                        continue;
                    }
                    playerUpdate.clearUpdateReqs(p);
                    Server.socketListener.writeBuffer(p);
                }
                for (NPC n : npcs) {
                    if (n == null) {
                        continue;
                    }
                    npcUpdate.clearUpdateMasks(n);
                }
                for (NPC n : npcs) {
                    if (n == null) {
                        continue;
                    }
                    n.process();
                    if (!n.isDead) {
                        if (n.randomWalk) {
                            npcMovement.randomWalk(n);
                        }
                    } else {
                        if (!n.deadEmoteDone) {
                            n.deadEmoteDone = true;
                            n.combatDelay = 3;
                        } else if (n.deadEmoteDone && !n.hiddenNPC && n.combatDelay <= 0) {
							n.npccanloot = true;
							n.npcDied(Engine.players[1], n.npcType, n.absX, n.absY);
                            n.hiddenNPC = true;
                        } else if (n.hiddenNPC && n.respawnDelay <= 0) {
                            if (n.needsRespawn) {
                                newNPC(n.npcType, n.makeX, n.makeY, n.heightLevel, n.moveRangeX1, n.moveRangeY1, 
                                        n.moveRangeX2, n.moveRangeY2, true);
                            }
                            npcs[n.npcId] = null;
                            rebuildNPCs();
                        }
                    }
                    lastEntityUpdate = curTime;
                }
            }
            try {
                Thread.sleep(100 - (System.currentTimeMillis() - curTime));
            } catch (Exception e) {
            }
        }
    }

    /**
     * Assign a player to the connection.
     * <p>When a new connection is recieved, a new Player class is created which waits for the run method
     * to run the Login class to finish the connection. If the id is 0, or the server is full, no
     * connection is made and the socket is closed.
     * @param socket The socket the new player is connected to.
     * @param id The id which the new player will be created at.
     */
    public void addConnection(Socket socket, int id) {
        if (id == 0) {
            Server.socketListener.removeSocket(id);
            return;
        }
        players[id] = new Player(socket, id);
    }

    /**
     * Run the login class to finish a new connection.
     * <p>Loops through all the players looking for any that are not online.
     * Because the socket can't cause the server to process slower, there
     * are multiple login stages, and the player will go through the login class
     * two or three times before fully logging in.
     */
    public void connectAwaitingPlayers() {
        Login login = null;
        for (Player p : players) {
            if (p == null || p.online) {
                continue;
            }
            if (login == null)
                login = new Login();
            login.login(p);
            if (!p.online && p.loginStage == -1 || (System.currentTimeMillis() - p.loginTimeout) >= 15000) {
                /*
                 * Remove the player if he failed to connect or it was the update server.
                 */
                removePlayer(p.playerId);
            }
        }
    }

    /**
     * Discard a player with the specified id in the player array.
     * <p>This method should only be called when the player is ready to be removed.
     * This nulls closes the players socket and then nulls the player.
     * @param id The position in the player array that should be removed.
     */
    public void removePlayer(int id) {
        if (players[id] == null) {
            return;
        }
        if (players[id].online) {
            try {
                fileManager.saveCharacter(players[id]);
            } catch (Exception e) {
            }
        }
        players[id].destruct();
        players[id] = null;
        Server.socketListener.removeSocket(id);
    }

    /**
     * This method tells every player to re-add any NPCs within distance.
     * <p>By calling this method, with the next NPC update it will discard the NPC list and
     * re-loop through every NPC and re-add them if they fit the specifications.
     */
    public void rebuildNPCs() {
        for (Player p : players) {
            if (p == null) {
                continue;
            }
            p.rebuildNPCList = true;
        }
    }

    /**
     * Returns a players id based on their username, or 0 if the player is not online.
     * <p>This will check if a player is online based on searching every characters username,
     * and comparing it to playerName. Because index 0 is not used and won't throw an
     * ArrayoutofBounds exception error, 0 is returned if the username isn't found.
     * @param playerName The name to compare with the other online player names.
     * @return Returns the index of the player with that username, or 0 if the username isn't found.
     */
    public int getIdFromName(String playerName) {
        playerName.replaceAll("_", " ");
        for (Player p : players) {
            if (p == null) {
                continue;
            }
            if (p.username.equalsIgnoreCase(playerName)) {
                return p.playerId;
            }
        }
        return 0;
    }

    /**
     * Returns the description of npcId.
     * @param npcId The NPC to get the examine for.
     * @return Returns the examine.
     */
    public String getNPCDescription(int npcId) {
        if (npcId == -1 || npcId >= maxListedNPCs) {
            return new String("An NPC.");
        }
        if (npcLists[npcId] != null) {
            return (npcLists[npcId].examine);
        }
        return new String("NPC " + npcId);
    }

    /**
     * Spawn a new NPC.
     * <p>This will create a new visible NPC, with the default values from its list and the parameters.
     * @param type The type of NPC this is, such as 50 for the King black dragon.
     * @param absX The absolute x coordinate to spawn the NPC.
     * @param absY The absolute y coordinate to spawn the NPC.
     * @param height The height level to set the NPC.
     * @param mRXY1 The distance it can walk west; must be lower than absX to have any effect.
     * @param mRY1 The distance it can walk south; must be lower than absY to have any effect.
     * @param mRX2 The distance it can walk east; must be higher than absX to have any effect.
     * @param mRY2 The distance it can walk north; must be higher than absY to have any effect.
     * @param needsRespawn Set to true if the NPC should respawn after it dies.
     * @return Returns the index the NPC was placed at.
     */
    public static int newNPC(int type, int absX, int absY, int height, int mRX1, int mRY1, int mRX2, int mRY2, boolean needsRespawn) {
        int index = -1;
        for (int i = 1; i < npcs.length; i++) {
            if (npcs[i] == null) {
                index = i;
                break;
           }
        }
        if (index == -1) {
            Misc.println("Max number of NPCs spawned.");
            return -1;
        }
        NPC n = npcs[index] = new NPC(type, index);
        n.absX = absX;
        n.absY = absY;
        n.makeX = absX;
        n.makeY = absY;
        n.heightLevel = height;
        n.moveRangeX1 = mRX1;
        n.moveRangeY1 = mRY1;
        n.moveRangeX2 = mRX2;
        n.moveRangeY2 = mRY2;
        n.needsRespawn = needsRespawn;
        NPCList nl = npcLists[type];
        if (nl != null) {
            n.name = nl.npcName;
            n.combatLevel = nl.combatLevel;
            n.maxHP = nl.maxHP;
            n.currentHP = n.maxHP;
            n.maxHit = nl.maxHit;
            n.atkType = nl.atkType;
            n.weakness = nl.weakness;
            n.respawnDelay = nl.respawnDelay;
        }
        return index;
    }
}

tutorial im folowing : [Only registered and activated users can see links. ]
already ty for help me bye