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[Help] Custom Script

oceeman

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oceeman Newbie

oceeman

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Hey! I wanted to make a NPC transform into another NPC when it has 40% HP but I get an error :-s

 

Code:

if (npc.getMaxHp() * 40 / 100 > npc.getCurrentHp() - damage)
		{				
			freya.deleteMe();
			freya2 = (L2GrandBossInstance) addSpawn(FREYA2, 114721, -114793, -11209, 0, false, 0);
			freya2.setCurrentHpMp(4400000, 200000);
			freya2.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text2[Rnd.get(1)]));
		}

 

Error:

 

java.lang.NullPointerException
at ai.individual.Freya.onAttack(Freya.java:127)
at com.l2jserver.gameserver.model.quest.Quest.onAttack(Quest.java:700)
at com.l2jserver.gameserver.model.quest.Quest.notifyAttack(Quest.java:367)
at com.l2jserver.gameserver.model.actor.L2Attackable.addDamage(L2Attackable.java:915)
at com.l2jserver.gameserver.model.actor.L2Attackable.reduceCurrentHp(L2Attackable.java:490)
at com.l2jserver.gameserver.model.actor.L2Attackable.reduceCurrentHp(L2Attackable.java:447)
at com.l2jserver.gameserver.model.actor.L2Character.onHitTimer(L2Character.java:5158)
at com.l2jserver.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2PcInstance.java:4509)
at com.l2jserver.gameserver.model.actor.L2Character$HitTask.run(L2Character.java:2592)
at com.l2jserver.gameserver.ThreadPoolManager$RunnableWrapper.run(ThreadPoolManager.java:86)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

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oceeman Newbie

oceeman

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package ai.individual;

import ai.group_template.L2AttackableAIScript;
import com.l2jserver.Config;
import com.l2jserver.gameserver.datatables.SkillTable;
import com.l2jserver.gameserver.instancemanager.GrandBossManager;
import com.l2jserver.gameserver.model.actor.L2Npc;
import com.l2jserver.gameserver.model.actor.instance.L2GrandBossInstance;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.network.serverpackets.NpcSay;
import com.l2jserver.gameserver.network.serverpackets.PlaySound;
import com.l2jserver.gameserver.templates.StatsSet;
import com.l2jserver.util.Rnd;

public class Freya extends L2AttackableAIScript
{
private static final String[] Text =
{
	"Ha ha.. PLAYERNAME! Feel the true power of Ice Queen!", "PLAYERNAME, get over here!", "You cannot run from me, PLAYERNAME!", "PLAYERNAME, where are you going to?"
};

private static final String[] Text2 =
{
	"Ha ha.. Did you think you win?", "I will erase you from this world!"
};

private static final String[] Text3 =
{
	"How do you feel now, PLAYERNAME?", "Fee; my wrath, PLAYERNAME!", "PLAYERNAME, feel my curse!"
};

private static final int FREYA = 18847;
private static final int FREYA2 = 29179;
private static final byte ALIVE = 0;
private static final byte DEAD = 1;
private L2GrandBossInstance freya, freya2;

public Freya(int id, String name, String descr)
{
	super(id, name, descr);
	int[] mob =
	{
			FREYA, FREYA2
	};
	this.registerMobs(mob);

	StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
	int status = GrandBossManager.getInstance().getBossStatus(FREYA);
	if (status == DEAD)
	{
		// load the unlock date and time for freya from DB
		long temp = info.getLong("respawn_time") - System.currentTimeMillis();
		// if freya is locked until a certain time, mark it so and start the unlock timer
		// the unlock time has not yet expired.
		if (temp > 0)
			startQuestTimer("freya_unlock", temp, null, null);
		else
		{
			// the time has already expired while the server was offline. Immediately spawn freya.
			L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, 114727, -114727, -11200, 0, false, 0);
			GrandBossManager.getInstance().setBossStatus(FREYA, ALIVE);
			spawnBoss(freya);
		}
	}
	else
	{
		int loc_x = info.getInteger("loc_x");
		int loc_y = info.getInteger("loc_y");
		int loc_z = info.getInteger("loc_z");
		int heading = info.getInteger("heading");
		int hp = info.getInteger("currentHP");
		int mp = info.getInteger("currentMP");
		L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, loc_x, loc_y, loc_z, heading, false, 0);
		freya.setCurrentHpMp(hp, mp);
		spawnBoss(freya);
	}
}

public void spawnBoss(L2GrandBossInstance npc)
{
	GrandBossManager.getInstance().addBoss(npc);
	npc.broadcastPacket(new PlaySound(1, "BS01_A", 1, npc.getObjectId(), npc.getX(), npc.getY(), npc.getZ()));
}

@Override
public String onAdvEvent(String event, L2Npc npc, L2PcInstance player)
{
	if (event.equalsIgnoreCase("freya_unlock"))
	{
		L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, 114727, -114727, -11200, 0, false, 0);
		GrandBossManager.getInstance().setBossStatus(FREYA, ALIVE);
		spawnBoss(freya);
	}
	return super.onAdvEvent(event, npc, player);
}

@Override
public String onAttack(L2Npc npc, L2PcInstance attacker, int damage, boolean isPet)
{
	int npcId = npc.getNpcId();
	if (npcId == FREYA)
	{
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text[Rnd.get(3)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(4064, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1290, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(100) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1169, 14));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1183, 4));
		}
		if (npc.getMaxHp() * 40 / 100 > npc.getCurrentHp() - damage)
		{				
			freya.deleteMe();
			freya2 = (L2GrandBossInstance) addSpawn(FREYA2, 114721, -114793, -11209, 0, false, 0);
			freya2.setCurrentHpMp(4400000, 200000);
			freya2.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text2[Rnd.get(1)]));
		}
	}
	if (npcId == FREYA2)
	{
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(10) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text[Rnd.get(3)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(4064, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(100) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text3[Rnd.get(2)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(6148, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1340, 1));
		}
		if (npc.getMaxHp() * 60 / 100 < npc.getCurrentHp() - damage)
		{
			freya2.deleteMe();
			freya = (L2GrandBossInstance) addSpawn(FREYA, 114721, -114793, -11209, 0, false, 0);
			freya.setCurrentHpMp(11061361, 200000);
		}
	}
	return super.onAttack(npc, attacker, damage, isPet);
}

@Override
public String onKill(L2Npc npc, L2PcInstance killer, boolean isPet)
{
	int npcId = npc.getNpcId();
	if (npcId == FREYA)
	{
		int objId = npc.getObjectId();
		npc.broadcastPacket(new PlaySound(1, "BS02_D", 1, objId, npc.getX(), npc.getY(), npc.getZ()));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Brave heroes!"));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Good fight but I shall return again."));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "You have not seen the last of Ice Queen!"));

		GrandBossManager.getInstance().setBossStatus(FREYA, DEAD);
		long respawnTime = (long) Config.Interval_Of_Freya_Spawn + Rnd.get(Config.Random_Of_Freya_Spawn);
		startQuestTimer("freya_unlock", respawnTime, null, null);
		// also save the respawn time so that the info is maintained past reboots
		StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
		info.set("respawn_time", (System.currentTimeMillis() + respawnTime));
		GrandBossManager.getInstance().setStatsSet(FREYA, info);
	}
	else if (npcId == FREYA2)
	{
		int objId = npc.getObjectId();
		npc.broadcastPacket(new PlaySound(1, "BS02_D", 1, objId, npc.getX(), npc.getY(), npc.getZ()));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Brave heroes!"));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Good fight but I shall return again."));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "You have not seen the last of Ice Queen!"));

		GrandBossManager.getInstance().setBossStatus(FREYA, DEAD);
		long respawnTime = (long) Config.Interval_Of_Freya_Spawn + Rnd.get(Config.Random_Of_Freya_Spawn);
		startQuestTimer("freya_unlock", respawnTime, null, null);
		// also save the respawn time so that the info is maintained past reboots
		StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
		info.set("respawn_time", (System.currentTimeMillis() + respawnTime));
		GrandBossManager.getInstance().setStatsSet(FREYA, info);
	}
	return super.onKill(npc, killer, isPet);
}

public static void main(String[] args)
{
	// now call the constructor (starts up the ai)
	new Freya(-1, "freya", "ai");
}
}

 

despawn and create a new one like halisha

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Intrepid Newbie

Intrepid

Posted
Posted 

package ai.individual;

import ai.group_template.L2AttackableAIScript;
import com.l2jserver.Config;
import com.l2jserver.gameserver.datatables.SkillTable;
import com.l2jserver.gameserver.instancemanager.GrandBossManager;
import com.l2jserver.gameserver.model.actor.L2Npc;
import com.l2jserver.gameserver.model.actor.instance.L2GrandBossInstance;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.network.serverpackets.NpcSay;
import com.l2jserver.gameserver.network.serverpackets.PlaySound;
import com.l2jserver.gameserver.templates.StatsSet;
import com.l2jserver.util.Rnd;

public class Freya extends L2AttackableAIScript
{
private static final String[] Text =
{
	"Ha ha.. PLAYERNAME! Feel the true power of Ice Queen!", "PLAYERNAME, get over here!", "You cannot run from me, PLAYERNAME!", "PLAYERNAME, where are you going to?"
};

private static final String[] Text2 =
{
	"Ha ha.. Did you think you win?", "I will erase you from this world!"
};

private static final String[] Text3 =
{
	"How do you feel now, PLAYERNAME?", "Fee; my wrath, PLAYERNAME!", "PLAYERNAME, feel my curse!"
};

private static final int FREYA = 18847;
private static final int FREYA2 = 29179;
private static final byte ALIVE = 0;
private static final byte DEAD = 1;
private L2GrandBossInstance freya, freya2;

public Freya(int id, String name, String descr)
{
	super(id, name, descr);
	int[] mob =
	{
			FREYA, FREYA2
	};
	this.registerMobs(mob);

	StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
	int status = GrandBossManager.getInstance().getBossStatus(FREYA);
	if (status == DEAD)
	{
		// load the unlock date and time for freya from DB
		long temp = info.getLong("respawn_time") - System.currentTimeMillis();
		// if freya is locked until a certain time, mark it so and start the unlock timer
		// the unlock time has not yet expired.
		if (temp > 0)
			startQuestTimer("freya_unlock", temp, null, null);
		else
		{
			// the time has already expired while the server was offline. Immediately spawn freya.
			L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, 114727, -114727, -11200, 0, false, 0);
			GrandBossManager.getInstance().setBossStatus(FREYA, ALIVE);
			spawnBoss(freya);
		}
	}
	else
	{
		int loc_x = info.getInteger("loc_x");
		int loc_y = info.getInteger("loc_y");
		int loc_z = info.getInteger("loc_z");
		int heading = info.getInteger("heading");
		int hp = info.getInteger("currentHP");
		int mp = info.getInteger("currentMP");
		L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, loc_x, loc_y, loc_z, heading, false, 0);
		freya.setCurrentHpMp(hp, mp);
		spawnBoss(freya);
	}
}

public void spawnBoss(L2GrandBossInstance npc)
{
	GrandBossManager.getInstance().addBoss(npc);
	npc.broadcastPacket(new PlaySound(1, "BS01_A", 1, npc.getObjectId(), npc.getX(), npc.getY(), npc.getZ()));
}

@Override
public String onAdvEvent(String event, L2Npc npc, L2PcInstance player)
{
	if (event.equalsIgnoreCase("freya_unlock"))
	{
		L2GrandBossInstance freya = (L2GrandBossInstance) addSpawn(FREYA, 114727, -114727, -11200, 0, false, 0);
		GrandBossManager.getInstance().setBossStatus(FREYA, ALIVE);
		spawnBoss(freya);
	}
	return super.onAdvEvent(event, npc, player);
}

@Override
public String onAttack(L2Npc npc, L2PcInstance attacker, int damage, boolean isPet)
{
	int npcId = npc.getNpcId();
	if (npcId == FREYA)
	{
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text[Rnd.get(3)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(4064, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1290, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(100) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1169, 14));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1183, 4));
		}
		if (npc.getMaxHp() * 40 / 100 > npc.getCurrentHp() - damage)
		{				
			freya.deleteMe();
			freya2 = (L2GrandBossInstance) addSpawn(FREYA2, 114721, -114793, -11209, 0, false, 0);
			freya2.setCurrentHpMp(4400000, 200000);
			freya2.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text2[Rnd.get(1)]));
		}
	}
	if (npcId == FREYA2)
	{
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(10) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text[Rnd.get(3)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(4064, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(100) == 0)
		{
			npc.broadcastPacket(new NpcSay(npc.getObjectId(), 0, npcId, Text3[Rnd.get(2)].replace("PLAYERNAME", attacker.getName().toString())));
			attacker.teleToLocation(npc.getX(), npc.getY(), npc.getZ());
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(6148, 1));
		}
		if (npc.isInsideRadius(attacker, 1000, false, false) && !npc.isInsideRadius(attacker, 300, false, false) && Rnd.get(20) == 0)
		{
			npc.setTarget(attacker);
			npc.doCast(SkillTable.getInstance().getInfo(1340, 1));
		}
		if (npc.getMaxHp() * 60 / 100 < npc.getCurrentHp() - damage)
		{
			freya2.deleteMe();
			freya = (L2GrandBossInstance) addSpawn(FREYA, 114721, -114793, -11209, 0, false, 0);
			freya.setCurrentHpMp(11061361, 200000);
		}
	}
	return super.onAttack(npc, attacker, damage, isPet);
}

@Override
public String onKill(L2Npc npc, L2PcInstance killer, boolean isPet)
{
	int npcId = npc.getNpcId();
	if (npcId == FREYA)
	{
		int objId = npc.getObjectId();
		npc.broadcastPacket(new PlaySound(1, "BS02_D", 1, objId, npc.getX(), npc.getY(), npc.getZ()));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Brave heroes!"));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Good fight but I shall return again."));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "You have not seen the last of Ice Queen!"));

		GrandBossManager.getInstance().setBossStatus(FREYA, DEAD);
		long respawnTime = (long) Config.Interval_Of_Freya_Spawn + Rnd.get(Config.Random_Of_Freya_Spawn);
		startQuestTimer("freya_unlock", respawnTime, null, null);
		// also save the respawn time so that the info is maintained past reboots
		StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
		info.set("respawn_time", (System.currentTimeMillis() + respawnTime));
		GrandBossManager.getInstance().setStatsSet(FREYA, info);
	}
	else if (npcId == FREYA2)
	{
		int objId = npc.getObjectId();
		npc.broadcastPacket(new PlaySound(1, "BS02_D", 1, objId, npc.getX(), npc.getY(), npc.getZ()));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Brave heroes!"));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "Good fight but I shall return again."));
		npc.broadcastPacket(new NpcSay(objId, 0, npcId, "You have not seen the last of Ice Queen!"));

		GrandBossManager.getInstance().setBossStatus(FREYA, DEAD);
		long respawnTime = (long) Config.Interval_Of_Freya_Spawn + Rnd.get(Config.Random_Of_Freya_Spawn);
		startQuestTimer("freya_unlock", respawnTime, null, null);
		// also save the respawn time so that the info is maintained past reboots
		StatsSet info = GrandBossManager.getInstance().getStatsSet(FREYA);
		info.set("respawn_time", (System.currentTimeMillis() + respawnTime));
		GrandBossManager.getInstance().setStatsSet(FREYA, info);
	}
	return super.onKill(npc, killer, isPet);
}

public static void main(String[] args)
{
	// now call the constructor (starts up the ai)
	new Freya(-1, "freya", "ai");
}
}

 

despawn and create a new one like halisha

 

Look into the polymorph scripts it will help you.

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Intrepid Newbie

Intrepid

Posted
Posted

and if i make it just to morph.. instead of checking for npc i will check for npc's morph right? it's easier this way? :)

 

morph is the same thing the difference beetwen morph and spawn a new one is nothing besides of how you code it :)

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