LostMiner.java

package teabx.vanillaextended.entities;

import net.minecraft.entity.EntityType;
import net.minecraft.entity.ILivingEntityData;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.SpawnReason;
import net.minecraft.entity.ai.goal.*;
import net.minecraft.entity.monster.MonsterEntity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.nbt.CompoundNBT;
import net.minecraft.util.DamageSource;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.IWorld;
import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;

import javax.annotation.Nullable;

public class LostMiner extends MonsterEntity {

    public LostMiner(EntityType<? extends MonsterEntity> type, World world) {
        super((EntityType<? extends MonsterEntity>) EntityRegistry.LOST_MINER, world);
    }


    @Override
    public boolean canSpawn(IWorld worldIn, SpawnReason spawnReasonIn) {
        if(worldIn.getLight(this.getPosition()) > 7 || this.posY > 40.0D){
            return false;
        }
        return true;
    }

    @Override
    protected void registerGoals() {
        this.goalSelector.addGoal(0, new SwimGoal(this));
        this.goalSelector.addGoal(8, new RandomWalkingGoal(this, 1.0D));
        this.goalSelector.addGoal(8, new LookAtGoal(this, PlayerEntity.class, 8.0F));
        this.goalSelector.addGoal(8, new LookRandomlyGoal(this));
        this.goalSelector.addGoal(6, new WaterAvoidingRandomWalkingGoal(this, 1.0D));

        this.targetSelector.addGoal(1, new NearestAttackableTargetGoal<>(this, PlayerEntity.class, true));

    }

    @Override
    protected void registerAttributes() {
        super.registerAttributes();
        this.getAttribute(SharedMonsterAttributes.FOLLOW_RANGE).setBaseValue(35.0D);
        this.getAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue((double)1.0F);
        this.getAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).setBaseValue(3.0D);
        this.getAttribute(SharedMonsterAttributes.ARMOR).setBaseValue(2.0D);
    }
}