I've been trying to create custom TNT, and it keeps saying "Cannot resolve constructor" in the RegistryObject:

The custom TNT class:

package net.nuclear_shmatt.yournewmod.entity.item.custom;

import net.minecraft.world.entity.*;
import net.minecraft.world.entity.item.PrimedTnt;
import net.minecraft.world.level.Level;
import net.nuclear_shmatt.yournewmod.entity.ModEntityTypes;

import javax.annotation.Nullable;

public class PrimedLumeniteTnt extends PrimedTnt {
    @Nullable
    private LivingEntity owner;

    public PrimedLumeniteTnt(EntityType<? extends PrimedLumeniteTnt> type, Level level) {
        super(type, level);
    }

    public PrimedLumeniteTnt(Level level, double x, double y, double z, @Nullable LivingEntity igniter) {
        this(ModEntityTypes.LUMENITE_TNT.get(), level);
        this.setPos(x, y, z);
        double d0 = level.random.nextDouble() * (double)((float)Math.PI * 2F);
        this.setDeltaMovement(-Math.sin(d0) * 0.02D, (double)0.2F, -Math.cos(d0) * 0.02D);
        this.setFuse(80);
        this.xo = x;
        this.yo = y;
        this.zo = z;
        this.owner = igniter;
    }

    @Nullable
    public LivingEntity getOwner() {
        return this.owner;
    }

    @Override
    protected void explode() {
        float f = 4.0F;
        this.level.explode(this, this.getX(), this.getY(0.0625D), this.getZ(), f, Level.ExplosionInteraction.TNT);
    }
}

And this is the registry:

package net.nuclear_shmatt.yournewmod.entity;

import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.MobCategory;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;
import net.nuclear_shmatt.yournewmod.YourNewMod;
import net.nuclear_shmatt.yournewmod.entity.item.custom.PrimedLumeniteTnt;

public class ModEntityTypes {
    public static final DeferredRegister<EntityType<?>> ENTITY_TYPES =
            DeferredRegister.create(ForgeRegistries.ENTITY_TYPES, YourNewMod.MODID);
    public static final RegistryObject<EntityType<? extends PrimedLumeniteTnt>> LUMENITE_TNT = ENTITY_TYPES.register("lumenite_tnt",
        () -> EntityType.Builder.of(PrimedLumeniteTnt::new, MobCategory.MISC)
                .fireImmune()
                .sized(0.98F, 0.98F)
                .build(new ResourceLocation(YourNewMod.MODID, "lumenite_tnt").toString()));

    public static void register(IEventBus eventBus) {
        ENTITY_TYPES.register(eventBus);
    }
}

"PrimedLumenite::new", new is underlined with red.

Edited May 9, 20232 yr by Nuclear_Shmatt

Just now, Nuclear_Shmatt said:

"PrimedLumenite::new", new is underlined with red.

Its not happy with the constructor you currently have, delete it and when it suggests to create a constructor in the registry just create it there and see if it works. I wouldn't know what the correct constructor would be since I've never worked with PrimedTnt before.

Edited May 9, 20232 yr by sFXprt

I went out of my way to debug it for you, I got the error to go away. Here is your final Code

PrimedLumeniteTnt

public class PrimedLumeniteTnt extends PrimedTnt {
    @Nullable
    private LivingEntity owner;

    public PrimedLumeniteTnt(Level level, double x, double y, double z, @Nullable LivingEntity igniter) {
        this(EntityInit.LUMENITE_TNT.get(), level);
        this.setPos(x, y, z);
        double d0 = level.random.nextDouble() * (double)((float)Math.PI * 2F);
        this.setDeltaMovement(-Math.sin(d0) * 0.02D, (double)0.2F, -Math.cos(d0) * 0.02D);
        this.setFuse(80);
        this.xo = x;
        this.yo = y;
        this.zo = z;
        this.owner = igniter;
    }

    public PrimedLumeniteTnt(EntityType<Entity> entityEntityType, Level level) {
        super((EntityType<? extends PrimedTnt>) entityEntityType, level);
    }

    @Nullable
    public LivingEntity getOwner() {
        return this.owner;
    }

    @Override
    protected void explode() {
        float f = 4.0F;
        this.level.explode(this, this.getX(), this.getY(0.0625D), this.getZ(), f, Explosion.BlockInteraction.BREAK);
    }
}

 

And here is where you register it

public static final RegistryObject<EntityType<Entity>> LUMENITE_TNT = ENTITY_TYPES.register("lumenite_tnt",
            () -> EntityType.Builder.of(PrimedLumeniteTnt::new, MobCategory.MISC)
                    .fireImmune()
                    .sized(0.98F, 0.98F)
                    .build(new ResourceLocation(Main.MOD_ID, "lumenite_tnt").toString()));

 

I think what happened here is when you tried to extend your tnt class when in fact you should've just put <Entity> since PrimedTnt is extending Entity

Well, that has resolved that.
Now a new problem has showed up:
Overlayed on "(EntityType<? extends PrimedTnt> type)", it says "Unchecked cast: 'net.minecraft.world.entity.EntityType<net.minecraft.world.entity.Entity>' to 'net.minecraft.world.entity.EntityType<? extends net.minecraft.world.entity.item.PrimedTnt>' "

    public PrimedLumeniteTnt(EntityType<Entity> type, Level level) {
        super((EntityType<? extends PrimedTnt>) type, level);
    }

 

Just now, Nuclear_Shmatt said:

Well, that has resolved that.
Now a new problem has showed up:
Overlayed on "(EntityType<? extends PrimedTnt> type)", it says "Unchecked cast: 'net.minecraft.world.entity.EntityType<net.minecraft.world.entity.Entity>' to 'net.minecraft.world.entity.EntityType<? extends net.minecraft.world.entity.item.PrimedTnt>' "

    public PrimedLumeniteTnt(EntityType<Entity> type, Level level) {
        super((EntityType<? extends PrimedTnt>) type, level);
    }

 

I made a mistake, Im currently not at an IDE right but can you just pass in ur Entity.get() thru ur init?

From what I understand (I didn't look that closely) the original code was correct except it lacked the usual type parameter needed for the builder?

This is because the compiler can't infer the type in that code so you have to tell it.

Something like this untested code:

Quote

public static final RegistryObject<EntityType<? extends PrimedLumeniteTnt>> LUMENITE_TNT = ENTITY_TYPES.register("lumenite_tnt", () -> EntityType.Builder.<PrimedLumeniteTnt>of(PrimedLumeniteTnt::new, MobCategory.MISC)

 

But note the subtile of this forum. If you are posting compiler errors, you are in the wrong place. You really want a learning java forum.

Quote

This is the support section for those modding with Forge. Help with modding goes in here, however, please keep in mind that this is not a Java school. You are expected to have basic knowledge of Java before posting here.

Well, I somehow fixed the issue by just removing the constructor and rewriting the same thing.
I don't understand but I'm okay with this.

    public PrimedLumeniteTnt(EntityType<? extends PrimedLumeniteTnt> entityType, Level level) {
        super(entityType, level);
    }

So, my issue is solved.