Hello, I'm making a huge mod for minecraft and I'm currently stuck at changing vanilla mob attributes, I did something like when a mob spawns, it register it to my custom entity and change the attributes from there, like this:

 

When entity spawns:

@SubscribeEvent
public void onLivingSpawn(LivingSpawnEvent e) {
	if (e.entityLiving instanceof EntityMob) {
		EntityMob entity = (EntityMob) e.entityLiving;
		String entityName = entity.getDisplayName().getFormattedText().toLowerCase().replace("§r", "");
		MepCustomEntityLiving customEntity = MepEntityEnumRegistry
		 .getEntityFromName(entityName);
		entity.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(customEntity.getMaxHealth());
		// entity.getEntityAttribute(SharedMonsterAttributes.attackDamage)
		// .setBaseValue(customEntity.getStat("strength"));
		System.out.println(customEntity.getName().toUpperCase() + " changed successfully");
	}
}

 

MepCustomEntityLiving:

package com.thelorizz.mep.customclass;

import com.thelorizz.mep.MepMain;
import com.thelorizz.mep.enumeration.MepEntityFunctions;

public class MepCustomEntityLiving {

public MepEntityFunctions entityFunctions;
public double expGiven;
public double strength;
public double defense;
public double maxHealth;
public int tier;
public String name;

public MepCustomEntityLiving(int par1, String par2) {
	this.tier = par1;
	this.name = par2;
	this.expGiven = this.setByTier(tier, "expGiven");
	this.strength = this.setByTier(tier, "strength");
	this.defense = this.setByTier(tier, "defense");
	this.maxHealth = this.setByTier(tier, "maxHealth");
}

public double getStat(String par1) {
	switch (par1) {
	case "expGiven":
		return this.expGiven;
	case "strength":
		return this.strength;
	case "defense":
		return this.defense;
	default:
		return 0;
	}
}

public String getName() {
	return this.name;
}

public double getMaxHealth() {
	return this.maxHealth;
}

public int getTier() {
	return this.tier;
}

public static double random(int mult, int plus) {
	MepCustomEntityPlayer player = MepMain.instance.getCustomEntityPlayerInstance();
	double levelModifier = player.getCurrentLevel() / 2;
	return (float) ((Math.random() * mult + plus) + levelModifier);
}

public static double set(int amount) {
	MepCustomEntityPlayer player = MepMain.instance.getCustomEntityPlayerInstance();
	double levelModifier = player.getCurrentLevel() / 2;
	return (int) (amount + levelModifier);
}

public static double setByTier(int par1, String type) {
	switch (par1) {
	case 1:
		switch (type) {
		case "expGiven":
			return random(3, 4);
		case "strength":
			return random(2, 4);
		case "defense":
			return random(1, 4);
		case "maxHealth":
			return set(250);
		}
	case 2:
		switch (type) {
		case "expGiven":
			return random(7, 4);
		case "strength":
			return random(5, 4);
		case "defense":
			return random(7, 4);
		case "maxHealth":
			return set(400);
		}
	case 3:
		switch (type) {
		case "expGiven":
			return random(14, 4);
		case "strength":
			return random(16, 4);
		case "defense":
			return random(13, 4);
		case "maxHealth":
			return set(740);
		}
	case 4:
		switch (type) {
		case "expGiven":
			return random(28, 4);
		case "strength":
			return random(24, 4);
		case "defense":
			return random(21, 4);
		case "maxHealth":
			return set(1430);
		}
	default:
		return 0;
	}
}
}

 

And the function that register the mob in the registry:

public static MepCustomEntityLiving getEntityFromName(String name) {
	for(int i = 0; i < entities.length; i++) {
		if (name.equals(entities[i].getName())) {
			return new MepCustomEntityLiving(entities[i].getTier(), entities[i].getName());
		}
	}
	return null;
}

 

But it doesn't work, it only works the exp given randomly.

You never do anything with

expGiven

after setting its value.

You never do anything with

expGiven

after setting its value.

 

It's in another code, it works that's why I didn't post it here, I just need to change the attackDamage and maxHealth

Are you sure you are getting a matching entry based on the entity's display name? What does your 'entities' array contain, and where did you get those names from?

 

Using the display name is a bad idea anyway - what if I'm playing in Chinese? The server has no idea what language I'm using, so it's expecting 'entity.zombie.name' or something like that, but I'm sending it 殭屍? Not gonna work.

Are you sure you are getting a matching entry based on the entity's display name? What does your 'entities' array contain, and where did you get those names from?

 

Using the display name is a bad idea anyway - what if I'm playing in Chinese? The server has no idea what language I'm using, so it's expecting 'entity.zombie.name' or something like that, but I'm sending it 殭屍? Not gonna work.

 

Actually it works, but yes you're right, I need to change it.

I cannot edit the attributes

EDIT: I found a solution but it returns a NullPointer in the ".applyModifier(modifier);" method:

@SubscribeEvent
public void onEntityConstructing(EntityConstructing e) {
if (e.entity instanceof EntityLiving) {
	EntityLiving entity = (EntityLiving) e.entity;
	String entityName = entity.getName();
	MepCustomEntityLiving customEntity = MepEntityEnumRegistry.getEntityFromName(entityName);
	if (customEntity != null) {
		double newHealth = customEntity.getMaxHealth();
		MepAttributeList attributeList = MepMain.ATTRIBUTELIST;
		if (!attributeList.exists()) {
			EntityPlayer player = (EntityPlayer) Minecraft.getMinecraft().thePlayer;
			AttributeModifier modifier = new AttributeModifier(entity.getUniqueID(), "maxHealthModifier",
					newHealth, 0);
			if (modifier != null) {
				entity.getAttributeMap().getAttributeInstance(SharedMonsterAttributes.maxHealth)
						.applyModifier(modifier);
			}
		}
	}
}
}

 

EDIT 2: Solved, I just changed the event to LivingSpawnEvent and added a .removeAllModifiers(); method over the .applyModifier(modifier) one.