BTGazer.java

package com.shadowducky.minestranding.common.mob.entity;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.shadowducky.minestranding.common.MineStranding;

import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.goal.FloatGoal;
import net.minecraft.world.entity.ai.goal.LookAtPlayerGoal;
import net.minecraft.world.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.world.entity.ai.goal.RandomLookAroundGoal;
import net.minecraft.world.entity.ai.goal.target.NearestAttackableTargetGoal;
import net.minecraft.world.entity.monster.Monster;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.level.Level;

public class BTGazer extends Monster {

	public static final Logger LOGGER = LogManager.getLogger(MineStranding.MODID);
	private Entity lastTarget;

	public BTGazer(EntityType<? extends BTGazer> entityType, Level level) {
		super(entityType, level);
		lastTarget = null;
	}

	@Override
	protected void registerGoals() {
		super.registerGoals();
		this.goalSelector.addGoal(0, new FloatGoal(this));
		this.goalSelector.addGoal(1, new MeleeAttackGoal(this, 1.0D, false));
		this.goalSelector.addGoal(2, new LookAtPlayerGoal(this, Player.class, 6.0F));
		this.goalSelector.addGoal(3, new RandomLookAroundGoal(this));
		this.targetSelector.addGoal(0, new NearestAttackableTargetGoal<>(this, Player.class, true));
	}

	public static AttributeSupplier.Builder createAttributes() {
		return Monster.createMonsterAttributes().add(Attributes.FOLLOW_RANGE, 5.0D).add(Attributes.MOVEMENT_SPEED, 0.1D)
				.add(Attributes.MAX_HEALTH, 30.0D).add(Attributes.ATTACK_DAMAGE, 1.0D);
	}

	public boolean targetIsNear() {
		if (lastTarget != null) {
			return this.distanceTo(lastTarget) <= 7;
		} else {
			return false;
		}
	}

	public void tick() {
		super.tick();
		Entity tempTarget = this.getTarget();
		if (tempTarget != null) {
			lastTarget = tempTarget;
		}
		System.out.println(lastTarget);
	}

}