Hey guys. I was wondered about if i could set random textures to mob. So its like Villager. I tried to mess up with it. I added some Strings and what i get:

public void setProfession(int par1)
    {
        this.dataWatcher.updateObject(160, Integer.valueOf(par1));
    }
public int getProfession()
    {
        return this.dataWatcher.getWatchableObjectInt(160);
    }
@SideOnly(Side.CLIENT)
public String getTexture()
{
        switch (this.getProfession())
        {
            case 0:
                return "/mob/HL/Mesa/Scientist_1.png";
            case 1:
                return "/mob/HL/Mesa/Scientist_2.png";
            case 2:
                return "/mob/HL/Mesa/Scientist_3.png";
            case 3:
                return "/mob/HL/Mesa/Scientist_4.png";
            default:
                return "/mob/HL/Mesa/Scientist_4.png";
        }
    }

 

For that to work villager didnt need anything speciefied. But when i go to Minecraft, i cant see my mob and there is alot of errors in console.

 

 

2014-01-20 17:38:59 [iNFO] [sTDERR] java.lang.NullPointerException

2014-01-20 17:38:59 [iNFO] [sTDERR] at net.minecraft.entity.DataWatcher.getWatchableObjectInt(DataWatcher.java:93)

2014-01-20 17:38:59 [iNFO] [sTDERR] at halflifemod.entity.monster.EntityScientist.getProfession(EntityScientist.java:69)

2014-01-20 17:38:59 [iNFO] [sTDERR] at halflifemod.entity.monster.EntityScientist.getTexture(EntityScientist.java:122)

2014-01-20 18:15:36 [iNFO] [sTDERR] java.lang.ClassCastException

2014-01-20 18:15:36 [iNFO] [sTDERR] java.lang.ClassCastException

 

 

 

Any guesses what i could try to do?

Bump

Once again: Bumping after one hour is rude.

 

You can't use 160 as a DataWatcher id, it's too high.

 

It was set on 16 in Villager. Which i can use?

It was set on 16 in Villager. Which i can use?

Learn to read the code you are using please:

Quote from DataWatcher.java:

 

throw new IllegalArgumentException("Data value id is too big with " + par1 + "! (Max is " + 31 + ")");

 

And even some of those are already used:

 

Now like I said earlier, the datawatcher can only allow 32 objects in it. here are some of the most important values: Entity: uses value 0, 1 meaning there is 30 more free id's (if you were to extend Entity directly). EntityLivingBase: uses 6, 7, 8, 9 (as well as all others from entity) meaning every single of your mobs has 26 id's free! EntityAnimal: uses 12 (as well as every other from before) for age. 25 free for your passive mobs. EntityPlayer: uses 16, 17, 18 as well as EntityLivingBase so you still have 23 free id's.

From http://www.minecraftforge.net/wiki/Datawatcher

It was set on 16 in Villager. Which i can use?

Learn to read the code you are using please:

Quote from DataWatcher.java:

 

throw new IllegalArgumentException("Data value id is too big with " + par1 + "! (Max is " + 31 + ")");

 

And even some of those are already used:

 

Now like I said earlier, the datawatcher can only allow 32 objects in it. here are some of the most important values: Entity: uses value 0, 1 meaning there is 30 more free id's (if you were to extend Entity directly). EntityLivingBase: uses 6, 7, 8, 9 (as well as all others from entity) meaning every single of your mobs has 26 id's free! EntityAnimal: uses 12 (as well as every other from before) for age. 25 free for your passive mobs. EntityPlayer: uses 16, 17, 18 as well as EntityLivingBase so you still have 23 free id's.

From http://www.minecraftforge.net/wiki/Datawatcher

 

Still nothing works. I tried out other ID's. Again it spawns an empty space instead of Mob. So that means something with render. Because entity is still ok. So i can beat it and do other stuff, but its like invisible. And console getting alot of errors.

 

 

2014-01-20 21:27:11 [iNFO] [sTDERR] java.lang.NullPointerException

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.entity.DataWatcher.getWatchableObjectInt(DataWatcher.java:93)

2014-01-20 21:27:11 [iNFO] [sTDERR] at halflifemod.entity.monster.EntityScientist.getProfession(EntityScientist.java:95)

2014-01-20 21:27:11 [iNFO] [sTDERR] at halflifemod.entity.monster.EntityScientist.getTexture(EntityScientist.java:109)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderLiving.func_98190_a(RenderLiving.java:291)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderLiving.renderModel(RenderLiving.java:263)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderLiving.doRenderLiving(RenderLiving.java:124)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderBiped.doRenderLiving(RenderBiped.java:159)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderBiped.doRender(RenderBiped.java:305)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderManager.renderEntityWithPosYaw(RenderManager.java:310)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:279)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:508)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1150)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:991)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:871)

2014-01-20 21:27:11 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.run(Minecraft.java:760)

2014-01-20 21:27:11 [iNFO] [sTDERR] at java.lang.Thread.run(Unknown Source)

 

 

You are supposed to set the initial value in entityInit().

You are supposed to set the initial value in entityInit().

 

Ok, so they not causing lags and errors right now, but skins not randomizing too

Here is the code

 

 

package halflifemod.entity.monster;

 

import cpw.mods.fml.common.registry.VillagerRegistry;

import cpw.mods.fml.relauncher.Side;

import cpw.mods.fml.relauncher.SideOnly;

 

import java.util.Collections;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import java.util.Random;

 

import doorcloser.modding.HalflifeRegistry;

import net.minecraft.block.Block;

import net.minecraft.enchantment.Enchantment;

import net.minecraft.enchantment.EnchantmentData;

import net.minecraft.enchantment.EnchantmentHelper;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityAgeable;

import net.minecraft.entity.EntityLiving;

import net.minecraft.entity.IMerchant;

import net.minecraft.entity.INpc;

import net.minecraft.entity.ai.EntityAIAvoidEntity;

import net.minecraft.entity.ai.EntityAIFollowGolem;

import net.minecraft.entity.ai.EntityAILookAtTradePlayer;

import net.minecraft.entity.ai.EntityAIMoveIndoors;

import net.minecraft.entity.ai.EntityAIMoveTwardsRestriction;

import net.minecraft.entity.ai.EntityAIOpenDoor;

import net.minecraft.entity.ai.EntityAIPanic;

import net.minecraft.entity.ai.EntityAIPlay;

import net.minecraft.entity.ai.EntityAIRestrictOpenDoor;

import net.minecraft.entity.ai.EntityAISwimming;

import net.minecraft.entity.ai.EntityAITradePlayer;

import net.minecraft.entity.ai.EntityAIVillagerMate;

import net.minecraft.entity.ai.EntityAIWander;

import net.minecraft.entity.ai.EntityAIWatchClosest;

import net.minecraft.entity.ai.EntityAIWatchClosest2;

import net.minecraft.entity.monster.EntityMob;

import net.minecraft.entity.monster.EntityZombie;

import net.minecraft.entity.monster.IMob;

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.util.ChunkCoordinates;

import net.minecraft.util.DamageSource;

import net.minecraft.util.MathHelper;

import net.minecraft.util.Tuple;

import net.minecraft.village.MerchantRecipe;

import net.minecraft.village.MerchantRecipeList;

import net.minecraft.village.Village;

import net.minecraft.world.World;

 

public class EntityScientist extends EntityMob implements INpc {

 

private int randomTickDivider;

 

public EntityScientist(World par1World) {

this(par1World, 0);

}

 

public EntityScientist(World par1World, int par2) {

super(par1World);

this.randomTickDivider = 0;

 

this.setProfession(par2);

this.texture = "/mob/HL/Mesa/Scientist.png";

this.moveSpeed = 0.5F;

this.setSize(0.6F, 1.8F);

this.getNavigator().setBreakDoors(true);

this.getNavigator().setAvoidsWater(true);

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

this.tasks.addTask(1, new EntityAIAvoidEntity(this, EntityZombie.class,8.0F, 0.3F, 0.35F));

this.tasks.addTask(2, new EntityAIPanic(this, 0.38F));

this.tasks.addTask(3, new EntityAIMoveIndoors(this));

this.tasks.addTask(4, new EntityAIRestrictOpenDoor(this));

this.tasks.addTask(5, new EntityAIOpenDoor(this, true));

this.tasks.addTask(6, new EntityAIMoveTwardsRestriction(this, 0.3F));

 

this.tasks.addTask(9, new EntityAIWatchClosest2(this,EntityPlayer.class, 3.0F, 1.0F));

this.tasks.addTask(9, new EntityAIWander(this, 0.3F));

this.tasks.addTask(10, new EntityAIWatchClosest(this,EntityLiving.class, 8.0F));

}

 

 

 

/**

* Returns true if the newer Entity AI code should be run

*/

public boolean isAIEnabled() {

return true;

}

 

 

 

protected void entityInit() {

super.entityInit();

this.dataWatcher.addObject(17, Integer.valueOf(0));

}

 

public int getMaxHealth() {

return 20;

}

 

/**

* (abstract) Protected helper method to write subclass entity data to NBT.

*/

public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) {

super.writeEntityToNBT(par1NBTTagCompound);

par1NBTTagCompound.setInteger("Profession", this.getProfession());

}

 

/**

* (abstract) Protected helper method to read subclass entity data from NBT.

*/

public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) {

super.readEntityFromNBT(par1NBTTagCompound);

this.setProfession(par1NBTTagCompound.getInteger("Profession"));

}

 

@SideOnly(Side.CLIENT)

public String getTexture() {

switch (this.getProfession()) {

case 0:

return "/mob/HL/Mesa/Scientist1.png";

case 1:

return "/mob/HL/Mesa/Scientist2.png";

case 2:

return "/mob/HL/Mesa/Scientist3.png";

default:

return VillagerRegistry.getVillagerSkin(this.getProfession(),super.getTexture());

}

}

 

/**

* Determines if an entity can be despawned, used on idle far away entities

*/

protected boolean canDespawn() {

return false;

}

 

/**

* Returns the sound this mob makes while it's alive.

*/

protected String getLivingSound() {

return null;

}

 

/**

* Returns the sound this mob makes when it is hurt.

*/

protected String getHurtSound() {

return "scientist.sci_pain";

 

}

 

protected float getSoundVolume() {

return 0.5F;

}

 

/**

* Returns the sound this mob makes on death.

*/

protected String getDeathSound() {

return "scientist.sci_die";

}

 

public void setProfession(int par1) {

this.dataWatcher.updateObject(17, Integer.valueOf(par1));

}

 

public int getProfession() {

return this.dataWatcher.getWatchableObjectInt(17);

}

 

 

 

}

 

 

 

It takes only "case 0" skin and putting it in on model. Whats the matter with this?

Code flow.

entityInit() obviously get's called after the constructor. Now understand what that means for your setProfession() call in the constructor.

 

I forgot to say. My mob is rendering and everything is fine, all goes without lags, errors and stuff. But it doesnt randomizes skins. So it only reads texture upon case 0, but i need it to randomly choose from case 0 to case 2. Its like the Villager, so when i spawn villager, his texture randomizing. I've taken code from villager, so it suppose to work but its not. Here is the code.  What can i do?

@SideOnly(Side.CLIENT)
public String getTexture() {
	switch (this.getProfession()) {
	case 0:
		return "/mob/HL/Mesa/Scientist1.png";
	case 1:
		return "/mob/HL/Mesa/Scientist2.png";
	case 2:
		return "/mob/HL/Mesa/Scientist3.png";
	default:
		return VillagerRegistry.getVillagerSkin(this.getProfession(),super.getTexture());
	}
}

Code flow.

entityInit() obviously get's called after the constructor. Now understand what that means for your setProfession() call in the constructor.

 

So i have to put setProfession after constructor, or entityInit in constructor. I tried both variants and it doesnt help.

So i have to put setProfession after constructor, or entityInit in constructor. I tried both variants and it doesnt help.

You have to make it so that setProfession gets called after you set the initial value (which you do in entityInit currently).

 

NVM. I fixed it out. I've just copied all stuff from Villager and removed not needed by "removing" method and everything is now fine! Thanks guys. Here is the files, so you can see the changes:

 

 

package halflifemod.entity.monster;

 

import cpw.mods.fml.common.registry.VillagerRegistry;

import cpw.mods.fml.relauncher.Side;

import cpw.mods.fml.relauncher.SideOnly;

 

import java.util.Collections;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import java.util.Random;

 

import doorcloser.modding.ScientistRegistry;

import net.minecraft.block.Block;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityLiving;

import net.minecraft.entity.INpc;

import net.minecraft.entity.ai.EntityAIAvoidEntity;

import net.minecraft.entity.ai.EntityAILookAtTradePlayer;

import net.minecraft.entity.ai.EntityAIMoveIndoors;

import net.minecraft.entity.ai.EntityAIMoveTwardsRestriction;

import net.minecraft.entity.ai.EntityAIOpenDoor;

import net.minecraft.entity.ai.EntityAIPanic;

import net.minecraft.entity.ai.EntityAIPlay;

import net.minecraft.entity.ai.EntityAIRestrictOpenDoor;

import net.minecraft.entity.ai.EntityAISwimming;

 

import net.minecraft.entity.ai.EntityAIWander;

import net.minecraft.entity.ai.EntityAIWatchClosest;

import net.minecraft.entity.ai.EntityAIWatchClosest2;

import net.minecraft.entity.monster.EntityMob;

import net.minecraft.entity.monster.EntityZombie;

import net.minecraft.entity.monster.IMob;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.item.Item;

 

import net.minecraft.nbt.NBTTagCompound;

import net.minecraft.world.World;

 

 

public class EntityScientist extends EntityMob implements INpc

{

  public EntityScientist(World par1World)

    {

        this(par1World, 0);

    }

 

    public EntityScientist(World par1World, int par2)

    {

        super(par1World);

     

        this.setProfession(par2);

        this.texture = "/mob/HL/Mesa/Scientist.png";

        this.moveSpeed = 0.5F;

        this.setSize(0.6F, 1.8F);

        this.getNavigator().setBreakDoors(true);

        this.getNavigator().setAvoidsWater(true);

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

        this.tasks.addTask(1, new EntityAIAvoidEntity(this, EntityZombie.class, 8.0F, 0.3F, 0.35F));

        this.tasks.addTask(2, new EntityAIPanic(this, 0.38F));

        this.tasks.addTask(3, new EntityAIMoveIndoors(this));

        this.tasks.addTask(4, new EntityAIRestrictOpenDoor(this));

        this.tasks.addTask(5, new EntityAIOpenDoor(this, true));

        this.tasks.addTask(6, new EntityAIMoveTwardsRestriction(this, 0.3F));

     

        this.tasks.addTask(7, new EntityAIWatchClosest2(this, EntityPlayer.class, 3.0F, 1.0F));

        this.tasks.addTask(7, new EntityAIWatchClosest2(this, EntityScientist.class, 5.0F, 0.02F));

        this.tasks.addTask(8, new EntityAIWander(this, 0.3F));

        this.tasks.addTask(9, new EntityAIWatchClosest(this, EntityLiving.class, 8.0F));

    }

 

    /**

    * Returns true if the newer Entity AI code should be run

    */

    public boolean isAIEnabled()

    {

        return true;

    }

 

   

 

    protected void entityInit()

    {

        super.entityInit();

        this.dataWatcher.addObject(16, Integer.valueOf(0));

    }

 

    public int getMaxHealth()

    {

        return 20;

    }

 

    /**

    * (abstract) Protected helper method to write subclass entity data to NBT.

    */

    public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)

    {

        super.writeEntityToNBT(par1NBTTagCompound);

        par1NBTTagCompound.setInteger("Profession", this.getProfession());   

    }

 

    /**

    * (abstract) Protected helper method to read subclass entity data from NBT.

    */

    public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)

    {

        super.readEntityFromNBT(par1NBTTagCompound);

        this.setProfession(par1NBTTagCompound.getInteger("Profession"));

    }

 

    @SideOnly(Side.CLIENT)

 

    /**

    * Returns the texture's file path as a String.

    */

    public String getTexture()

    {

        switch (this.getProfession())

        {

            case 0:

                return "/mob/HL/Mesa/Scientist1.png";

            case 1:

                return "/mob/HL/Mesa/Scientist2.png";

            case 2:

                return "/mob/HL/Mesa/Scientist3.png";

            default:

                return VillagerRegistry.getVillagerSkin(this.getProfession(), super.getTexture());

        }

    }

 

    /**

    * Determines if an entity can be despawned, used on idle far away entities

    */

    protected boolean canDespawn()

    {

        return false;

    }

 

    /**

    * Returns the sound this mob makes while it's alive.

    */

    protected String getLivingSound()

    {

        return null;

    }

 

    /**

    * Returns the sound this mob makes when it is hurt.

    */

    protected String getHurtSound()

    {

        return "scientist.sci_pain";

    }

 

    /**

    * Returns the sound this mob makes on death.

    */

    protected String getDeathSound()

    {

        return "scientist.sci_die";

    }

 

    public void setProfession(int par1)

    {

        this.dataWatcher.updateObject(16, Integer.valueOf(par1));

    }

 

    public int getProfession()

    {

        return this.dataWatcher.getWatchableObjectInt(16);

    }

 

    private void textureRandomize(int par1)

    {

      switch (this.getProfession())

        {

            case 0:

            break;

            case 1:

            break;

            case 2:

               

        }}

 

    public void initCreature()

    {

        ScientistRegistry.applyRandomTexture(this, worldObj.rand);

    }

    protected float getSoundVolume() {

return 0.5F;

}

 

}

 

 

 

 

package doorcloser.modding;

 

import halflifemod.entity.monster.EntityScientist;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import java.util.Random;

import com.google.common.collect.Lists;

import com.google.common.collect.Maps;

 

public class ScientistRegistry

{

    private static final ScientistRegistry INSTANCE = new ScientistRegistry();

 

   

    private Map<Integer, String> newScientists = Maps.newHashMap();

    private List<Integer> newScientistIds = Lists.newArrayList();

 

 

   

    public static ScientistRegistry instance()

    {

        return INSTANCE;

    }

 

    public static void applyRandomTexture(EntityScientist entityScientist, Random rand)

    {

        int extra = instance().newScientistIds.size();

        int trade = rand.nextInt(5 + extra);

        entityScientist.setProfession(trade < 5 ? trade : instance().newScientistIds.get(trade - 5));

    }

}

 

 

 

So, how you can see i only needed to set a registry file and add this string to my EntityFile:

public void initCreature()
    {
        ScientistRegistry.applyRandomTexture(this, worldObj.rand);
    }