hi

so basically, i'm trying to make a sword that when used, creates an explosion that deals damage at the block/entity that the player is targeting. however, when i tried to right-click with it, it caused the game to crash with "exit value -1";

i have a decent knowledge of java, but i'm new to modding. there are no errors btw.

 

have a nice day!

package net.sac.rpgmod.item.custom;


import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResultHolder;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
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;
import net.minecraft.world.phys.Vec3;

import java.util.List;

public class ExplosionSwordItem extends SwordItem {
    public ExplosionSwordItem(Tier pTier, int pAttackDamageModifier, float pAttackSpeedModifier, Properties properties) {
        super(pTier, pAttackDamageModifier, pAttackSpeedModifier, properties);
    }
    private void locateTargetExecute(LivingEntity user, Level world) {
        Vec3 eyePos = user.getEyePosition();
        Vec3 lookVec = user.getLookAngle();

        Vec3 targetPos = eyePos.add(lookVec.scale(25)).add(0, -1 * user.getEyeHeight(), 0);


        ((ServerLevel) world).sendParticles(ParticleTypes.EXPLOSION_EMITTER, targetPos.x, targetPos.y, targetPos.z, 3, 5, 5, 5, 0.0);

        AABB minMax = new AABB(targetPos.x, targetPos.y, targetPos.z, 10, 10, 10);
        List<Entity> ent = world.getEntities(user, minMax);
        for (Entity target : ent) {
            target.hurt(DamageSource.MAGIC, 20);
        }
    }
    public InteractionResultHolder<ItemStack> use(Level world, Player player, InteractionHand hand) {
        if(!world.isClientSide() && hand == InteractionHand.MAIN_HAND) {
            locateTargetExecute(player, world);
            player.getCooldowns().addCooldown(this, 20);
        }
        return(null);
    }

}

 

Edited June 6, 20232 yr by Grqndfish
solved

13 hours ago, Grqndfish said:

        return(null);

I have no idea what this means. You need to return an actual value.

thank you, it works!