Search the Forums BEFORE making a new post.

Entity Cannot Swim

Posted September 1, 201411 yr

Whenever I spawn my entity in water after a few seconds it will just sink to the bottom of the water and stay there until it drowns just bobbing along as if it were above the water. I don't really know why as I copied the AI straight from the wolf class and the wolves don't sink like that. Could it be to do with the fact the size of the entity changes as it grows when it levels up, I really don't know.

Quote

September 2, 201411 yr

Author

If there is any information that may be helpful please ask me.

Quote

September 2, 201411 yr

Add the next rule to your constructors and you are finished:

"this.tasks.addTask(0, new EntityAISwimming(this));";

Quote

September 2, 201411 yr

Post the entity's code

Check out my mod, Realms of Chaos, here.

If I helped you, be sure to press the "Thank You" button!

Quote

September 2, 201411 yr

Author

This is all of it, however a lot is probably not relevant.

package com.blocklings.entity;

import java.util.List;
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.EntityAIFollowOwner;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIOwnerHurtByTarget;
import net.minecraft.entity.ai.EntityAIOwnerHurtTarget;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.IInvBasic;
import net.minecraft.inventory.InventoryBasic;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.pathfinding.PathEntity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.DamageSource;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

import com.blocklings.gui.InventoryBlockling;
import com.blocklings.main.Blocklings;
import com.blocklings.network.CreatePacketServerSide;

public class EntityBlockling extends EntityTameable implements IInvBasic{

Random random = new Random();

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

public int requiredXP = 200;

public double maxHealth = 2.0F;
public double attackDamage = 1.0D;
public double moveSpeed = 0.20D;

public float moveTimer = 0.0F;
public boolean moveTimerSwitch = true;

public float attackTimer = 0.0F;
public boolean attackTimerSwitch = true;
public boolean isAttacking = false;

public boolean hasSword = false;

public float width = 0.5F;
public float height = 0.55F;

public InventoryBlockling gear;

public EntityBlockling(World world) {

	super(world);

	this.setSize(this.width, this.height);

	this.getNavigator().setAvoidsWater(true);
	this.getNavigator().setCanSwim(true);

	this.tasks.addTask(1, new EntityAISwimming(this));
	this.tasks.addTask(2, this.aiSit);
	this.tasks.addTask(3, new EntityAIAttackOnCollide(this, 1.0D, false));
	this.tasks.addTask(4, new EntityAIFollowOwner(this, 1.0D, 6.0F, 3.0F));
	this.tasks.addTask(5, new EntityAIWander(this, 1.0D));
	this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
	this.tasks.addTask(7, new EntityAILookIdle(this));

	this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true));
	this.targetTasks.addTask(2, new EntityAIOwnerHurtByTarget(this));
	this.targetTasks.addTask(3, new EntityAIOwnerHurtTarget(this));

	this.setTamed(false);

	this.currentLevel = random.nextInt(10) + 1;

	this.setupGear();

}

@Override
protected void applyEntityAttributes() {

	super.applyEntityAttributes();

	this.maxHealth = 20.0D;
	this.attackDamage = 1.0D;
	this.moveSpeed = 0.20D;

	this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(this.maxHealth);
	this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(this.moveSpeed);
	this.getAttributeMap().registerAttribute(SharedMonsterAttributes.attackDamage);
	this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(this.attackDamage);

}

@Override
public void onLivingUpdate() {

	super.onLivingUpdate();

	if (this.attackTimer > 0.0F) {

		this.attackTimer -= 1.0F;

	}

	this.hasSword = true;

	this.setEntitySize();

	this.setBlocklingLevel();

	this.calculateRequiredXP();

	this.setMaxHealth();
	this.setAttackDamage();
	this.setMoveSpeed();

	if(!this.worldObj.isRemote) {

		CreatePacketServerSide.sendS2CEntitySync(this);

	}

}

@Override
public boolean attackEntityAsMob(Entity entity) {

	this.setXP(((int) this.attackDamage + random.nextInt(5) + 1) + this.currentXP);

	if (this.attackTimer <= 1.0F) {

		this.attackTimer = (float) random.nextInt(4) + 8;

	}

	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);

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

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

			this.setTamed(true);
			this.setPathToEntity((PathEntity) null);
			this.setAttackTarget((EntityLivingBase) null);
			this.func_152115_b(entityPlayer.getUniqueID().toString());
			this.playTameEffect(true);
			this.worldObj.setEntityState(this, (byte) 7);

		} else {

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

		}

	}

	if(this.func_152114_e(entityPlayer) && entityPlayer.isSneaking() && !this.worldObj.isRemote) {

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

			entityPlayer.openGui(Blocklings.modInstance, 0, this.worldObj, this.getEntityId(), 0, 0);

		} else {

			entityPlayer.openGui(Blocklings.modInstance, 0, this.worldObj, this.getEntityId(), 0, 0);

		}

	}

	if (this.func_152114_e(entityPlayer) && !entityPlayer.isSneaking() && !this.worldObj.isRemote) {

		this.aiSit.setSitting(!this.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 boolean getCanSpawnHere() {

	int i = MathHelper.floor_double(this.posX);
	int j = MathHelper.floor_double(this.boundingBox.minY);
	int k = MathHelper.floor_double(this.posZ);

	int l = this.worldObj.getFullBlockLightValue(i, j, k);
	boolean s = this.worldObj.canBlockSeeTheSky(i, j, k);
	boolean b = this.worldObj.getBlock(i, j - 1, k) == Blocks.grass;

	List list = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(posX, posY, posZ, posX + 1, posY + 1, posZ + 1).expand(16D, 512D, 16D));

	return list.size() < 5 && l > 8 && b && s;

}

@Override
public void onDeath(DamageSource ds) {
	super.onDeath(ds);

	if (gear != null && !this.worldObj.isRemote) {

		for (int i = 0; i < gear.getSizeInventory(); ++i) {

			ItemStack itemstack = gear.getStackInSlot(i);

			if (itemstack != null) {

				this.entityDropItem(itemstack, 0.0F);

			}

		}

	}

}

@Override
public void onInventoryChanged(InventoryBasic var1) {

}

@Override
public void writeEntityToNBT(NBTTagCompound compound) {

	super.writeEntityToNBT(compound);

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

	compound.setInteger("requiredXP", this.requiredXP);

	compound.setDouble("maxHealth", this.maxHealth);

	compound.setFloat("moveTimer", this.moveTimer);

	NBTTagList nbttaglist = new NBTTagList();

	for (int i = 0; i < this.gear.getSizeInventory(); ++i) {

		ItemStack itemstack = this.gear.getStackInSlot(i);

		if (itemstack != null) {

			NBTTagCompound nbttagcompound1 = new NBTTagCompound();
			nbttagcompound1.setByte("Slot", (byte) i);
			itemstack.writeToNBT(nbttagcompound1);
			nbttaglist.appendTag(nbttagcompound1);

		}

		compound.setTag("Items", nbttaglist);

	}

}

@Override
public void readEntityFromNBT(NBTTagCompound compound) {

	super.readEntityFromNBT(compound);

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

	this.requiredXP = compound.getInteger("requiredXP");

	this.maxHealth = compound.getDouble("maxHealth");

	this.moveTimer = compound.getFloat("moveTimer");

	NBTTagList nbttaglist = compound.getTagList("Items", 10);

	this.setupGear();

	for (int i = 0; i < nbttaglist.tagCount(); ++i) {

		NBTTagCompound nbttagcompound1 = nbttaglist.getCompoundTagAt(i);
		int j = nbttagcompound1.getByte("Slot") & 255;

		if (j >= 0 && j < this.gear.getSizeInventory()) {

			this.gear.setInventorySlotContents(j, ItemStack.loadItemStackFromNBT(nbttagcompound1));

		}

	}

}


@Override
public EntityAgeable createChild(EntityAgeable entityAgeable) {

	return null;

}

public void calculateRequiredXP() {

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

}

public void setBlocklingLevel() {

	if (this.currentXP > this.requiredXP) {

		this.currentLevel = this.currentLevel + 1;

		this.calculateRequiredXP();

		this.currentXP = 0;

		if(!this.worldObj.isRemote) {

			CreatePacketServerSide.sendS2CEntitySync(this);

		}

	}

}

public void setEntitySize() {

	if(this.currentLevel <= 10) {

		this.width = (float) (this.currentLevel * 0.14F) + 0.35F;
		this.height = (float) (this.currentLevel * 0.14F) + 0.4F;

	} else if(this.currentLevel > 10) {

		this.width = (float) (10 * 0.14F) + 0.35F;
		this.height = (float) (10 * 0.14F) + 0.4F;

	}

	setSize(this.width, this.height);

}

public void setMaxHealth() {

	if(this.currentLevel <= 10) {

		this.maxHealth = this.currentLevel * 2;

	} else if(this.currentLevel > 10) {

		this.maxHealth = 20;

	}

	this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(this.maxHealth);

	if(this.getHealth() > this.maxHealth) {

		this.heal(0.0F);

	}

}

public void setAttackDamage() {

	if(this.currentLevel <= 10) {

		this.attackDamage = this.currentLevel;

	} else if(this.currentLevel > 10) {

		this.attackDamage = 10;

	}

	this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(this.attackDamage);

}

public void setMoveSpeed() {

	if(this.currentLevel <= 10) {

		this.moveSpeed = 0.20D + ((double) this.currentLevel / 100);

	} else if(this.currentLevel > 10) {

		this.moveSpeed = 0.30D;

	}

	this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(this.moveSpeed);

}

private void setupGear() {

	InventoryBlockling gear1 = this.gear;

	this.gear = new InventoryBlockling("Inventory", howManySlots());

	this.gear.func_110133_a(this.getCommandSenderName());

	if (gear1 != null) {

		gear1.func_110132_b(this);

		int i = Math.min(gear1.getSizeInventory(), this.gear.getSizeInventory());

		for (int j = 0; j < i; ++j) {

			ItemStack itemstack = gear1.getStackInSlot(j);

			if (itemstack != null) {

				this.gear.setInventorySlotContents(j, itemstack.copy());

			}

		}

		gear1 = null;
	}

	this.gear.func_110134_a(this);

}

public int howManySlots() {

	return 22;

}

public int getLevel() {

	return this.currentLevel;

}

public void setLevel(int currentLevel) {

	this.currentLevel = currentLevel;

}

public int getXP() {

	return this.currentXP;

}

public void setXP(int currentXP) {

	this.currentXP = currentXP;

}

public double getMaximumHealth() {

	return this.maxHealth;

}

public void setMaximumHealth(double maxHealth) {

	this.maxHealth = maxHealth;

}

public double getAttackDamage() {

	return this.attackDamage;

}

public void setAttackDamage(double attackDamage) {

	this.attackDamage = attackDamage;

}

public int getRequiredXP() {

	return this.requiredXP;

}

public void setRequiredXP(int requiredXP) {

	this.requiredXP = requiredXP;

}

public float getAttackTimer() {

	return this.attackTimer;

}

public void setAttackTimer(float attackTimer) {

	this.attackTimer = attackTimer;

}

public boolean getHasSword() {

	return this.hasSword;

}

public void setHasSword(boolean hasSword) {

	this.hasSword = hasSword;

}

}

Quote

September 6, 201411 yr

Author

Please someone I am still having trouble with this.

Quote

September 6, 201411 yr

Add the next rule to your constructors and you are finished:

"this.tasks.addTask(0, new EntityAISwimming(this));";

As he said. Task to make it swim should do

Check out my blog!

http://www.whov.altervista.org

Quote

September 6, 201411 yr

Author

That's already there, I have all the required AI for the entity to swim I believe but it just isn't working.

Quote

September 6, 201411 yr

Sorry, missed that ::) . Are the other tasks working?

EDIT: also, does this happen also when spawn on earth and then pushed?

Check out my blog!

http://www.whov.altervista.org

Quote

September 6, 201411 yr

Author

Yeah the others work fine. It is literally just when they end up in water, no matter how, they just start to drown in water that is too deep.

Quote

September 7, 201411 yr

I don't have enough experience about entities to help further :'( sorry... I searched all the way till class Entity starting from Skeleton, Zombie and Cow, but no clue.. $:-\$ You might try pathfinding if it has something related, but not really sure

Check out my blog!

http://www.whov.altervista.org

Quote

September 8, 201411 yr

Author

Well pathfinding is also a bit buggy, not sure if it is related but it could be. No worries, it isn't the end of the world... yet

Quote

September 9, 201411 yr

That is weird. It does seem like your code should be correct. I don't have time to check it out now, but will see if my own entities with similar wolf-like AI have trouble swimming. I think they do okay, but will check.

Check out my tutorials here: http://jabelarminecraft.blogspot.com/

Quote

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.

Reply to this topic...

https://forums.minecraftforge.net/topic/22867-entity-cannot-swim/

Followers

Go to topic listing

IPS spam blocked by CleanTalk.

Announcements

Experience the magic of KaminariCraft, where innovation meets adventure in the world of Minecraft

⚡ KaminariCraft — Where good vibes meet great gameplay!
Looking for a friendly, fair, and polished Minecraft home? You’ve found it. KaminariCraft blends classic survival charm with modern quality-of-life features—no pay-to-win, no nonsense, just community-driven fun.
Why you’ll love it
Survival Economy SMP — Jobs, shops, auctions, quests, land protection, player warps, dungeons & custom loot.
Skyblock — Progressive islands, minions, challenges, generators, and balanced economy.
KitPvP — Snappy arenas, fair kits, elo, events, and anti-cheat tuned for smooth fights.
Cross-play — Java & Bedrock players together (bring your friends from any device!).
Lag-free & secure — WORLD-WIDE routing, optimized servers, active moderation, grief rollback.
Community first — Giveaways, weekly events, friendly staff, and zero pay-to-win pressure.
Start your journey
Discord: discord.kaminaricraft.com (chat, updates, support)
Website: https://www.kaminaricraft.com (store, forums, guides)
Join the server
Java IP: play.kaminaricraft.com
Bedrock IP: pe.kaminaricraft.com:19783
Bring your squad, claim your land, and spark something epic. Welcome to KaminariCraft—your new favorite place to play. ⚡

By MG141 · Posted Yesterday at 01:26 PM1 day
Bad pathfinding for big mobs (1.21.1)

I sent you a message with my username

By VictorEvers · Yesterday at 12:01 PM1 day
Forge 60.0 Minecraft 1.21.10

By Jonathing · Posted Tuesday at 10:38 PM1 day
How do you add a mob to spawn around a existing vanilla structure?

So I have a custom mob that I wanna spawn around pillager outposts naturally. maybe with only 1 limit. But I can't seem to find the right path for it.
Like doing it similar to how pillagers spawn.

By Yazzarally · Posted Monday at 04:54 PM2 days
rlcraft cant join locally hosted server

downloading the modpack from at launcher got it working..... seems like there was some weird downloading with 2 of the mods failing virus scans.

By tanker · Monday at 04:16 PM2 days

There are no registered users currently online

Sign In

Entity Cannot Swim

Featured Replies

Join the conversation

Posts

Experience the magic of KaminariCraft, where innovation meets adventure in the world of Minecraft

Bad pathfinding for big mobs (1.21.1)

Forge 60.0 Minecraft 1.21.10

How do you add a mob to spawn around a existing vanilla structure?

rlcraft cant join locally hosted server

Who's Online (See full list)

Important Information

Account

Navigation

Search

Configure browser push notifications

Chrome (Android)

Chrome (Desktop)

Safari (iOS 16.4+)

Safari (macOS)

Edge (Android)

Edge (Desktop)

Firefox (Android)

Firefox (Desktop)