My custom entity will sit, but then it will still move around at its own accord, I have no idea why this is happening.

 

package com.blocklings.entity;

import java.util.Random;

import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityAgeable;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIBeg;
import net.minecraft.entity.ai.EntityAIFollowOwner;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILeapAtTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIMate;
import net.minecraft.entity.ai.EntityAIOwnerHurtByTarget;
import net.minecraft.entity.ai.EntityAIOwnerHurtTarget;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAITargetNonTamed;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.ai.attributes.IAttributeInstance;
import net.minecraft.entity.passive.EntitySheep;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.pathfinding.PathEntity;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EnumChatFormatting;
import net.minecraft.world.World;

import com.blocklings.network.CreatePacketServerSide;

public class EntityBlockling extends EntityTameable {

Random random = new Random();

public int currentXP = 0;
public int currentLevel = 1;

public int requiredXP = 200;

public float moveTimer = 0;
public boolean moveTimerSwitch = true;

public EntityBlockling(World world) {

	super(world);

	setSize(0.5F, 0.5F);

	getNavigator().setAvoidsWater(true);

        tasks.addTask(1, new EntityAISwimming(this));
        tasks.addTask(2, this.aiSit);
        tasks.addTask(3, new EntityAILeapAtTarget(this, 0.4F));
        tasks.addTask(4, new EntityAIAttackOnCollide(this, 1.0D, true));
        tasks.addTask(5, new EntityAIFollowOwner(this, 1.0D, 10.0F, 2.0F));
        tasks.addTask(6, new EntityAIMate(this, 1.0D));
        tasks.addTask(7, new EntityAIWander(this, 1.0D));
        tasks.addTask(8, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
        tasks.addTask(9, new EntityAILookIdle(this));
        
        targetTasks.addTask(1, new EntityAIOwnerHurtByTarget(this));
        targetTasks.addTask(2, new EntityAIOwnerHurtTarget(this));
        targetTasks.addTask(3, new EntityAIHurtByTarget(this, true));

	setTamed(false);

}

@Override
protected void applyEntityAttributes() {

	super.applyEntityAttributes();

	getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(10.0D);
	getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.3D);
	getAttributeMap().registerAttribute(SharedMonsterAttributes.attackDamage);
	getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(2.0D);

}

@Override
public void onLivingUpdate() {

	super.onLivingUpdate();

	moveTimer();

	if(!worldObj.isRemote) {

		CreatePacketServerSide.sendS2CEntitySync(this);

	}

}

@Override
public boolean attackEntityAsMob(Entity entity) {

	addXP(random.nextInt(5));

	return entity.attackEntityFrom(DamageSource.causeMobDamage(this), (float) getEntityAttribute(SharedMonsterAttributes.attackDamage).getAttributeValue());

}

@Override
public boolean interact(EntityPlayer entityPlayer) {

	ItemStack itemstack = entityPlayer.inventory.getCurrentItem();
	Item yellowFlower = Item.getItemFromBlock(Blocks.yellow_flower);
	Item redFlower = Item.getItemFromBlock(Blocks.red_flower);
	Item tallFlower = Item.getItemFromBlock(Blocks.double_plant);

	EntityLivingBase owner = this.getOwner();

	if(itemstack != null && (itemstack.getItem() == yellowFlower || itemstack.getItem() == redFlower || itemstack.getItem() == tallFlower) && !this.isTamed() && !this.worldObj.isRemote) {

		if(random.nextInt(3) == 0) {

			setTamed(true);
			setPathToEntity((PathEntity) null);
			setAttackTarget((EntityLivingBase) null);
			setOwner(entityPlayer.getCommandSenderName());
			playTameEffect(true);
			worldObj.setEntityState(this, (byte) 7);

		} else {

			playTameEffect(false);
			worldObj.setEntityState(this, (byte) 6);

		}

	}

	if(entityPlayer == owner && entityPlayer.isSneaking() && !worldObj.isRemote) {

		if(getCustomNameTag().length() > 0) {

			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + " - " + getCustomNameTag() + " -"));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "Level: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + currentLevel));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "XP: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + currentXP + "/" + requiredXP));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "Max Health: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + (int) getHealth() + "/" + (int) getEntityAttribute(SharedMonsterAttributes.maxHealth).getAttributeValue()));

		} else {

			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + " - " + "Your Blockling" + " -"));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "" + "Level: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + currentLevel));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "" + "XP: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + currentXP + "/" + requiredXP));
			entityPlayer.addChatMessage(new ChatComponentText(EnumChatFormatting.GOLD + "Max Health: " + EnumChatFormatting.WHITE + "" + EnumChatFormatting.ITALIC + "" + (int) getHealth() + "/" + (int) getEntityAttribute(SharedMonsterAttributes.maxHealth).getAttributeValue()));

		}

	}

	if (entityPlayer == owner && !entityPlayer.isSneaking() && !this.worldObj.isRemote) {

		setSitting(!isSitting());

	}

	return super.interact(entityPlayer);

}

@Override
protected float applyArmorCalculations(DamageSource p_70655_1_, float p_70655_2_) {

	return 1.0F;

}

@Override
public boolean isAIEnabled() {

	return true;

}

@Override
public void writeEntityToNBT(NBTTagCompound compound) {

	super.writeEntityToNBT(compound);

	compound.setInteger("currentXP", currentXP);
	compound.setInteger("currentLevel", currentLevel);

	compound.setInteger("requiredXP", requiredXP);

}

@Override
public void readEntityFromNBT(NBTTagCompound compound) {

	super.readEntityFromNBT(compound);

	currentXP = compound.getInteger("currentXP");
	currentLevel = compound.getInteger("currentLevel");

	requiredXP = compound.getInteger("requiredXP");

}


@Override
public EntityAgeable createChild(EntityAgeable entityAgeable) {

	return null;

}


public void addXP(int xp) {

	currentXP = currentXP + xp;

	setBlocklingLevel();

}

public void calculateRequiredXP() {

	requiredXP = (50 * (currentLevel * currentLevel) + (150 * currentLevel));

}

public void setBlocklingLevel() {

	if (currentXP > requiredXP) {

		currentLevel = currentLevel + 1;

		calculateRequiredXP();

		currentXP = 0;

		if(!worldObj.isRemote) {

			CreatePacketServerSide.sendS2CEntitySync(this);

		}

	}

}

public void moveTimer() {

	if(moveTimerSwitch) {

		moveTimer += 2.5F;

	}

	if(!moveTimerSwitch) {

		moveTimer -= 2.5F;

	}

	if(moveTimer >= 10.0F) {

		moveTimerSwitch = false;

	}

	if(moveTimer <= -10.0) {

		moveTimerSwitch = true;

	}

}

public int getLevel() {

	return currentLevel;

}

public void setLevel(int currentLevel) {

	this.currentLevel = currentLevel;

}

public float getMoveTimer() {

	return moveTimer;

}

public void setMoveTimer(float moveTimer) {

	this.moveTimer = moveTimer;

}

}

It will still find it's own path, you need to set the path to null

 

this.aiSit.setSitting(!this.isSitting());

this.isJumping = false;

this.setPathToEntity((PathEntity)null);

this.setTarget((Entity)null);

this.setAttackTarget((EntityLivingBase)null);

 

Also, use a simple methode to check if it is called, that could be a problem too.

System.out.println("test message");

 

if the methode is called, your console will say "test message"

if it is not called, well you need to change some things.