[1.6.4][SOLVED]Checking If The Mob Is Looking At The Player

pokeyletsplays · February 2, 2015

Yes I realize 1.6.4 is old I plan on updating soon but I have my reasons for staying on 1.6.4 for now so lets just leave it at that.

So what I want to do is make it so if the mob is looking at the player it applies effects to the player like slowness or weakness ect...

I have no idea how to go about this.

Here is my code so far anyway.

package Main.Pokey.Mine_EE_Mobs;
import java.util.Random;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.monster.EntityMob;
import net.minecraft.entity.passive.EntityBat;
import net.minecraft.entity.passive.EntityChicken;
import net.minecraft.entity.passive.EntityCow;
import net.minecraft.entity.passive.EntityPig;
import net.minecraft.entity.passive.EntitySheep;
import net.minecraft.entity.passive.EntityVillager;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;


public class EntitySuccubus extends EntityMob
{
public int Texture = 0;
public EntitySuccubus(World par1World)
{
super(par1World);
this.setSize(0.5F, 2.0F);
this.tasks.addTask(6, new EntityAIWander(this, 1.0D));
this.tasks.addTask(1, new EntityAISwimming(this));
this.tasks.addTask(4, new EntityAIAttackOnCollide(this, 1.0D, false));
this.tasks.addTask(5, new EntityAIWander(this, 10.0D));
this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
this.tasks.addTask(6, new EntityAILookIdle(this));
this.targetTasks.addTask(1, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 0, true));
this.targetTasks.addTask(2, new EntityAIHurtByTarget(this, false));
this.Texture();
}





 private void Texture() {
	 if(worldObj.provider.isHellWorld == true && worldObj.isRemote)
		{
			Texture = 1;
			for (int i = 0; i < 2; ++i)
	        {
	            this.worldObj.spawnParticle("smoke", this.posX + (this.rand.nextDouble() - 0.5D) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height, this.posZ + (this.rand.nextDouble() - 0.5D) * (double)this.width, 0.0D, 0.0D, 0.0D);
	            this.worldObj.spawnParticle("flame", this.posX + (this.rand.nextDouble() - 0.5D) * (double)this.width, this.posY + this.rand.nextDouble() * (double)this.height, this.posZ + (this.rand.nextDouble() - 0.5D) * (double)this.width, 0.0D, 0.0D, 0.0D);
	        }
		}
		 if(worldObj.provider.isHellWorld == false)
		{
			Texture = 0;
		}

}





private void setSuccubusHealth(int par1) {
   	  this.dataWatcher.updateObject(16, new Byte((byte)par1));

	}

	public int getSuccubusHealth() {
		 return this.dataWatcher.getWatchableObjectByte(16);
	}

protected void entityInit()
    {
        super.entityInit();
        this.dataWatcher.addObject(16, new Byte((byte)0));
    }

@Override
protected boolean isAIEnabled() {
return true;
}
@Override

protected String getLivingSound()
{
return "mob.zombie.say";
}

@Override
protected String getHurtSound()
{
return "mob.zombie.hurt";
}

@Override
protected String getDeathSound()
{
return "mob.zombie.death";
}
@Override
protected void applyEntityAttributes()
{
super.applyEntityAttributes();
    this.getEntityAttribute(SharedMonsterAttributes.followRange).setAttribute(20.0D);
    this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.167D);
this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(3.0D);
}



 public void onLivingUpdate()
    {
	 super.onLivingUpdate();
		this.Texture();


		if(Minecraft.getMinecraft().objectMouseOver.entityHit != null){
		    if(Minecraft.getMinecraft().objectMouseOver.entityHit instanceof EntitySuccubus){
		       this.posY = 20;
		    }
		}

		if(this.entityToAttack == this.findPlayerToAttack())
		{
			this.setSprinting(true);
		}

		if(worldObj.provider.isHellWorld == true)
		{
			this.isImmuneToFire = true;
			this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(6.0D);
			 this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.382D);
			 this.setSprinting(true);

		}
		 if(worldObj.provider.isHellWorld == false)
		{
			 this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(3.0D);
			 this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.267D);
		}


		this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setAttribute(this.getSuccubusHealth() + 5);	    
   }


 public boolean hitByEntity(Entity entity)
    {
	 if (entity instanceof EntityPlayer) {
		if(((EntityPlayer)entity).getCurrentEquippedItem() != null )
	      {
	         
			  ItemStack hand = ((EntityPlayer)entity).getCurrentEquippedItem();
			  
		       /*  if(hand.getItem().itemID == Item.swordWood.itemID)
		         {
	        	 return false;
	         }*/
		}

	 else
	 {
        return false;
    }
    }
	return false;
	 }

 public boolean attackEntityAsMob(Entity entity) {
	 super.attackEntityAsMob(entity);
	    if (entity instanceof EntityPlayer) {
	    	
	    	this.setSuccubusHealth(this.getSuccubusHealth() + 3);
	    	this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setAttribute(this.getMaxHealth() + 3);
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.moveSlowdown.id,600, 3));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.confusion.id,600, 5));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.hunger.id,600, 3));
	    	this.setHealth(this.getHealth() + this.getSuccubusHealth());
	    	
	    	}
		return true;
	   
	}

@Override
protected boolean isValidLightLevel()
{
return true;
}
/**
* (abstract) Protected helper method to write subclass entity data to NBT.
*/
public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)
{
    super.writeEntityToNBT(par1NBTTagCompound);
    par1NBTTagCompound.setInteger("Health", this.getSuccubusHealth());

   // par1NBTTagCompound.setInteger("TP", this.Teleport);
}

/**
* (abstract) Protected helper method to read subclass entity data from NBT.
*/
public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)
{
    super.readEntityFromNBT(par1NBTTagCompound);
    this.setSuccubusHealth(par1NBTTagCompound.getInteger("Health"));

}


}

Belpois · February 2, 2015

Perform a ray trace from the Mob's forward looking vector, and check if the hit entity is a Living Entity

MovingObjectPosition movingObjectPosition = par5EntityPlayer.rayTrace(par1, par2);
Entity entity = movingObjectPosition.entityHit;

if(entity != null)
{
    // Implement your checks and logic here
}

pokeyletsplays · February 2, 2015

Perform a ray trace from the Mob's forward looking vector, and check if the hit entity is a Living Entity
MovingObjectPosition movingObjectPosition = par5EntityPlayer.rayTrace(par1, par2);
Entity entity = movingObjectPosition.entityHit;

if(entity != null)
{
    // Implement your checks and logic here
}

so would i put this code in my onupdate method? or what?

also what would i use for par1 and par2?

Belpois · February 2, 2015

so would i put this code in my onupdate method? or what?

also what would i use for par1 and par2?

float distance = 200;
rayTrace(distance, 1.0F)

Quote From: http://jabelarminecraft.blogspot.com/p/minecraft-forge-172-finding-block.html

The 200 defines how far the rayTrace will go. 200 seems to allow it to go basically to the edge of loaded chunks, but you can change the number if it makes sense in your use case. The 1.0F defines the "partial ticks" that I believe is used to filter out execution of the method for those cases where a lot of ray tracing is done and could cause lag.

This is from 1.7.2 but the ray tracer shouldnt have changed, so it should work with 1.6.4

pokeyletsplays · February 2, 2015

so would i put this code in my onupdate method? or what?

also what would i use for par1 and par2?
float distance = 200;
rayTrace(distance, 1.0F)
Quote From: http://jabelarminecraft.blogspot.com/p/minecraft-forge-172-finding-block.html

The 200 defines how far the rayTrace will go. 200 seems to allow it to go basically to the edge of loaded chunks, but you can change the number if it makes sense in your use case. The 1.0F defines the "partial ticks" that I believe is used to filter out execution of the method for those cases where a lot of ray tracing is done and could cause lag.

This is from 1.7.2 but the ray tracer shouldnt have changed, so it should work with 1.6.4

i put this in my onupdate method

float distance = 200;

		MovingObjectPosition movingObjectPosition = EntityPlayer.rayTrace(200, 1.0F);
		Entity entity = movingObjectPosition.entityHit;

		if(entity != null)
		{
		    // Implement your checks and logic here
		}

but it gives me this error Cannot make a static reference to the non-static method rayTrace(double, float) from the type EntityLivingBase

Belpois · February 2, 2015

EntityPlayer needs to be replaced by the instance of either the mob or a player

pokeyletsplays · February 2, 2015

does it need to be replaced with what i want to be looked at or who i want looking at it?

Belpois · February 2, 2015

does it need to be replaced with what i want to be looked at or who i want looking at it?

If you want to detect when a mob is looking at a player, in the update code type

// "this" is a reference to the entity, it is a basic Java keyword that represents the instance
MovingObjectPosition mop = this.rayTrace(200, 1.0F)
Entity entity = mop.entityHit;

pokeyletsplays · February 2, 2015

does it need to be replaced with what i want to be looked at or who i want looking at it?

If you want to detect when a mob is looking at a player.

my update code sofar.
// This is a reference to the entity, it is a basic Java keyword that represents the instance
MovingObjectPosition mop = this.rayTrace(200, 1.0F)
Entity entity = mop.entityHit;

the game crashes when the entity hits the player.

float distance = 200;

		MovingObjectPosition mop = this.rayTrace(200, 1.0F);
				Entity entity = mop.entityHit;

		if(entity != null)
		{
			if(entity instanceof EntityPlayer){
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.moveSlowdown.id,600, 3));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.confusion.id,600, 5));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.hunger.id,600, 3));
		}
		}

Belpois · February 2, 2015

the game crashes when the entity hits the player.

float distance = 200;

		MovingObjectPosition mop = this.rayTrace(200, 1.0F);
				Entity entity = mop.entityHit;

		if(entity != null)
		{
			if(entity instanceof EntityPlayer){
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.moveSlowdown.id,600, 3));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.confusion.id,600, 5));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.hunger.id,600, 3));
		}
		}

On which line does it crash?

pokeyletsplays · February 2, 2015

the game crashes when the entity hits the player.

float distance = 200;

		MovingObjectPosition mop = this.rayTrace(200, 1.0F);
				Entity entity = mop.entityHit;

		if(entity != null)
		{
			if(entity instanceof EntityPlayer){
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.moveSlowdown.id,600, 3));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.confusion.id,600, 5));
	    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.hunger.id,600, 3));
		}
		}

On which line does it crash?

Entity entity = mop.entityHit;

Belpois · February 2, 2015

That's because the raytrace is returning null, check if null first

pokeyletsplays · February 2, 2015

That's because the raytrace is returning null, check if null first

now it doesn't crash but it doesn't work.

float distance = 200;

		MovingObjectPosition mop = this.rayTrace(200, 1.0F);

		if(mop != null)
		{
			Entity entity = mop.entityHit;
			if(entity != null)
			{
				if(entity instanceof EntityPlayer){
		    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.moveSlowdown.id,600, 3));
		    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.confusion.id,600, 5));
		    	((EntityPlayer) entity).addPotionEffect(new PotionEffect(Potion.hunger.id,600, 3));
			}
			}
		}

Belpois · February 2, 2015

So when the mob spawns, you go in front of it but "mop" is still null?

pokeyletsplays · February 2, 2015

So when the mob spawns, you go in front of it but "mop" is still null?

it is not null it keeps printing out a bunch of random numbers like "net.minecraft.util.MovingObjectPosition@436d62a"

Belpois · February 2, 2015

I was just looking through some of the vanilla code and the base EntityMob class has this method

protected Entity findPlayerToAttack() 
{
        EntityPlayer var1 = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
        return var1 != null && this.canEntityBeSeen(var1)?var1:null;
}

You can use that, execute it and the nearest player will be the entity.

pokeyletsplays · February 2, 2015

I was just looking through some of the vanilla code and the base EntityMob class has this method
protected Entity findPlayerToAttack() 
{
        EntityPlayer var1 = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
        return var1 != null && this.canEntityBeSeen(var1)?var1:null;
}
You can use that, execute it and the nearest player will be the entity.

Awesome Thanks

Belpois · February 2, 2015

No problem, did it work?

Sign In

[1.6.4][SOLVED]Checking If The Mob Is Looking At The Player

Recommended Posts

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Join the conversation

Announcements

Recently Browsing

Posts

Topics

Who's Online (See full list)

Important Information