Spawning in entity: Error

[RosarioMokaChan]

So i'm making an entity which uses a similar model to that of a horse (so I copied everything from ModelHorse into a class which will be used by my entity and renamed everything so it would work), and I made a render class along with an entity class. In the main class I registered it and made the spawn egg, but whenever I try to spawn it into the world I just get an error message in the console.

 

Error message:

 

2013-09-08 18:19:48 [iNFO] [sTDERR] java.lang.InstantiationException
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(Unknown Source)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at java.lang.reflect.Constructor.newInstance(Unknown Source)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:205)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:175)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:81)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:152)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.item.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:429)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.network.NetServerHandler.handlePlace(NetServerHandler.java:554)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.network.packet.Packet15Place.processPacket(Packet15Place.java:79)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.network.MemoryConnection.processReadPackets(MemoryConnection.java:89)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.network.NetServerHandler.networkTick(NetServerHandler.java:141)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.network.NetworkListenThread.networkTick(NetworkListenThread.java:54)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.integrated.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:109)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:689)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:585)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:129)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
2013-09-08 18:19:48 [iNFO] [sTDERR] 	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
2013-09-08 18:19:48 [WARNING] [Minecraft-Server] Skipping Entity with id 301

 

Could it be that i'm calling it wrong, or do you think it's something else?

[GotoLink]

(so I copied everything from ModelHorse

*facepalm*

Why not use ModelHorse directly ?  :'(

 

Your error comes from your entity constructors. It is expected to have a constructor with (World) as only argument.

[RosarioMokaChan]

I didn't use ModelHorse as I was going to make a new, similar model at a later date. I did this to get it setup for when I decided to do that.

 

As for the constructors, do you think you could perhaps give a little hint as to what I need to do, as I thought that it was correct 

[GotoLink]

Constructor is the "hint". That word is basic Java, i am afraid.

Show your entity code anyway.

[RosarioMokaChan]

Ok, this is what I have in the EntityPegasus class.

 

package RosarioMokaChan.RandomCraft;

import RosarioMokaChan.RandomCraft.lib.ModBlocks;
import net.minecraft.block.Block;
import net.minecraft.block.StepSound;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIPanic;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityAnimal;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.util.StatCollector;
import net.minecraft.world.World;

public abstract class EntityPegasus extends EntityAnimal
{
    public EntityPegasus(World par1World)
    {
        super(par1World);
        this.setSize(1.4F, 1.6F);
        this.isImmuneToFire = true;
        this.getNavigator().setAvoidsWater(true);
        this.tasks.addTask(0, new EntityAISwimming(this));
        this.tasks.addTask(1, new EntityAIPanic(this, 0.8D));
        this.tasks.addTask(6, new EntityAIWander(this, 0.7D));
        this.tasks.addTask(7, new EntityAIWatchClosest(this, EntityPlayer.class, 6.0F));
        this.tasks.addTask(8, new EntityAILookIdle(this));
    }
    
    protected boolean isAIEnabled(){
    	return true;
    }
    
    public int getMaxHealth() {
    	return 15;
    	}
    

    @Override
    protected String getLivingSound()
    {
        return "mob.horse.idle";
    }

    @Override
    protected String getHurtSound()
    {
        return "mob.horse.hit";
    }

    @Override
    protected String getDeathSound()
    {
        return "mob.horse.death";
    }

    @Override
    protected float getSoundVolume()
    {
        return 0.4F;
    }
    
    protected int getDropItemId()
    {
        return Item.leather.itemID;
    }
    
    protected void playStepSound(int par1, int par2, int par3, int par4)
    {
        this.playSound("mob.horse.gallop", 0.15F, 1.0F);
        
    }
    
    protected void dropRareDrop(int par1){
    	switch (this.rand.nextInt(3)){
    	case 0:
    		this.dropItem(ModBlocks.dragonWings.itemID, 1);
    	break;
    	}
    }
    
    public EnumCreatureAttribute getCreatureAttribute(){
    	return EnumCreatureAttribute.UNDEFINED;
    }
    
    

    
}

[RosarioMokaChan]

To be honest, I just made it abstract because there was an error if I didn't do it. Not entirely sure what difference there is between the two though.

[RosarioMokaChan]

Before I started anything to do with modding, I made sure to read a few java documents and do some exercises to learn some of the stuff needed, it's just abstract classes and a few other things weren't covered. Also making the class abstract was an alternative to importing net.minecraft.entity.EntityAgeable, which I was trying to avoid doing as I was trying to cut down on the amount of unnecessary imports.

[GotoLink]

Well, abstract classes can't be instanciated.

It is their main property.

 

making the class abstract was an alternative to importing net.minecraft.entity.EntityAgeable

This doesn't make any sense. You can also do both or neither.

 

I was trying to cut down on the amount of unnecessary imports.

One of my personal rules is: "Optimize a working code, not the other way around"

[RosarioMokaChan]

Right, so now my entity spawns in the world and has a shadow, hitbox and sounds. However it's invisible. The console is saying that my entity can't be cast to EntityHorse, and i'm sure that I must be missing something in my RenderPegasus class.

 

2013-09-09 10:08:30 [iNFO] [sTDERR] java.lang.ClassCastException: RosarioMokaChan.RandomCraft.EntityPegasus cannot be cast to net.minecraft.entity.passive.EntityHorse
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at RosarioMokaChan.RandomCraft.Pegasus.setLivingAnimations(Pegasus.java:362)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.entity.RendererLivingEntity.func_130000_a(RendererLivingEntity.java:153)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.entity.RenderLiving.doRenderLiving(RenderLiving.java:28)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at RosarioMokaChan.RandomCraft.RenderPegasus.renderPegasus(RenderPegasus.java:21)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at RosarioMokaChan.RandomCraft.RenderPegasus.doRender(RenderPegasus.java:31)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.entity.RenderManager.renderEntityWithPosYaw(RenderManager.java:312)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:281)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:524)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1160)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1006)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:934)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:826)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.client.main.Main.main(Main.java:93)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at java.lang.reflect.Method.invoke(Unknown Source)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
2013-09-09 10:08:30 [iNFO] [sTDERR] 	at net.minecraft.launchwrapper.Launch.main(Launch.java:18)