Jump to content
Search the Forums BEFORE making a new post.
Currently supported: All versions

Game crashes when using item

Kuikenpower

By Kuikenpower
in Modder Support

 Share

Recommended Posts

Kuikenpower Tree Puncher

Kuikenpower

Posted
Posted

Hi, I want to make an item that will heal entities in an area around the player(it doesn't matter if the player will also heal himself) but when I right-click the game will crash. Here's my code: 

package com.kuikenpower.falidsmp.init.item;

import java.util.List;

import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResultHolder;
import net.minecraft.world.effect.MobEffectInstance;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.ai.memory.NearestVisibleLivingEntities;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.SwordItem;
import net.minecraft.world.item.Tier;
import net.minecraft.world.level.Level;
import net.minecraft.world.phys.AABB;

public class flowerStaff extends SwordItem{

	public flowerStaff(Tier p_43269_, int p_43270_, float p_43271_, Properties p_43272_) {
		super(p_43269_, p_43270_, p_43271_, p_43272_);
		// TODO Auto-generated constructor stub
	}
	
	@Override
	public void inventoryTick(ItemStack itemStack, Level world, Entity entity, int p_41407_, boolean p_41408_) {
		Player player = (Player) entity;
		if(player.isCrouching() && player.getMainHandItem().getItem() instanceof flowerStaff) {
            Double x = player.getX();
            Double y = player.getY();
            Double z = player.getZ();
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 2.5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 2.5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 2.5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 2.5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z + 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z + 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z - 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z - 2.5, 5, 5, 5);
		}
		super.inventoryTick(itemStack, world, entity, p_41407_, p_41408_);
	}
	
	@Override
	public InteractionResultHolder<ItemStack> use(Level world, Player player, InteractionHand p_41434_) {
		if(world.isClientSide) {
			AABB healArea = new AABB(player.getX() + 5, player.getY() + 2, player.getZ() + 5, player.getX() - 5, player.getY() - 2, player.getZ() - 5);
			if(player.isCrouching()) {
				List<LivingEntity> entityInArea = world.getNearbyEntities(null, null, player, healArea);
				LivingEntity targets = entityInArea.get(EAT_DURATION);
				targets.addEffect(new MobEffectInstance(MobEffects.HEAL, 20));
			}
		}
		return super.use(world, player, p_41434_);
	}
	
}

 

Link to comment
Share on other sites
Kuikenpower Tree Puncher

Kuikenpower

Posted
  • Author
Posted
19 hours ago, diesieben07 said:

What if it's not a player?

null and null are not valid parameters here.

Uh, what? Why are you getting the entity at index EAT_DURATION? This makes zero sense. EAT_DURATION is 32, so what if there are only 15 entities nearby? Or none at all? Even if there are 33 or more entities nearby, this achieves nothing useful.

I did everything you said, but it still crashes 

package com.kuikenpower.falidsmp.init.item;

import java.util.List;

import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResultHolder;
import net.minecraft.world.effect.MobEffectInstance;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.ai.targeting.TargetingConditions;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.SwordItem;
import net.minecraft.world.item.Tier;
import net.minecraft.world.level.Level;
import net.minecraft.world.phys.AABB;

public class flowerStaff extends SwordItem{

	public flowerStaff(Tier p_43269_, int p_43270_, float p_43271_, Properties p_43272_) {
		super(p_43269_, p_43270_, p_43271_, p_43272_);
		// TODO Auto-generated constructor stub
	}
	
	@Override
	public void inventoryTick(ItemStack itemStack, Level world, Entity entity, int p_41407_, boolean p_41408_) {
		LivingEntity player = (LivingEntity) entity;
		if(player.isCrouching() && player.getMainHandItem().getItem() instanceof flowerStaff) {
            Double x = player.getX();
            Double y = player.getY();
            Double z = player.getZ();
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 2.5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 2.5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 2.5, y, z + 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 2.5, y, z - 5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z + 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z + 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x + 5, y, z - 2.5, 5, 5, 5);
            world.addParticle(ParticleTypes.HAPPY_VILLAGER, x - 5, y, z - 2.5, 5, 5, 5);
		}
		super.inventoryTick(itemStack, world, entity, p_41407_, p_41408_);
	}
	
	@Override
	public InteractionResultHolder<ItemStack> use(Level world, Player player, InteractionHand p_41434_) {
		if(world.isClientSide) {
			AABB healArea = new AABB(player.getX() + 5, player.getY() + 2, player.getZ() + 5, player.getX() - 5, player.getY() - 2, player.getZ() - 5);
			if(player.isCrouching()) {
				List<LivingEntity> entityInArea = world.getNearbyEntities(LivingEntity.class, TargetingConditions.forNonCombat(), player, healArea);
				LivingEntity targets = entityInArea.get(5);
				targets.addEffect(new MobEffectInstance(MobEffects.HEAL, 20));
			}
		}
		return super.use(world, player, p_41434_);
	}
	
}

 

Link to comment
Share on other sites
MFMods Diamond Finder

MFMods

Posted
Posted

invert isClientSide check. you are supposed to heal server entities.

get(5) on a list object returns sixth entity, you intended that for testing, right? and you ensured that there will be five or more entities around you when testing, because otherwise it would crash.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

Announcements



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

  I accept