[1.7.2]Calling Item causes crash

[PlatonCraft]

I have a real trouble. If I trying this

par2EntityLivingBase.getCurrentItemOrArmor(1).getItem()

I getting MC crashed with

 

Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
at platon.mods.flintstonetools.ItemFlintSword.hitEntity(ItemFlintSword.java:40)
at net.minecraft.item.ItemStack.hitEntity(ItemStack.java:318)
at net.minecraft.entity.player.EntityPlayer.attackTargetEntityWithCurrentItem(EntityPlayer.java:1323)
at net.minecraft.network.NetHandlerPlayServer.func_147340_a(NetHandlerPlayServer.java:813)
at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(C02PacketUseEntity.java:55)
at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(C02PacketUseEntity.java:10)
at net.minecraft.network.NetworkManager.processReadPackets(NetworkManager.java:198)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:680)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:568)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:114)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:705)

 

I guess why this happens. How can I get Item if Item is null. But even if I calling this to armored horse with saddle too, game crashes anyway. Why? How can I fix this?

[Draco18s]

par2EntityLivingBase.getCurrentItemOrArmor(1)

 

If that slot is empty, what will it return?

[PlatonCraft]

par2EntityLivingBase.getCurrentItemOrArmor(1)

 

If that slot is empty, what will it return?

Yes, but slot is NOT empty.

How can I check that slot is not or empty empty? I don't know

And != null or ==null or !(.equal(null)) or .equal(null) not act at all

[Draco18s]

par2EntityLivingBase.getCurrentItemOrArmor(1)

 

If that slot is empty, what will it return?

Yes, but slot is NOT empty.

How can I check that slot is not or empty empty? I don't know

And != null or ==null or !(.equal(null)) or .equal(null) not act at all

 

You have to check for the thing that actually IS null, not the thing after it:

 

if(par2EntityLivingBase.getCurrentItemOrArmor(1) != null) {

    par2EntityLivingBase.getCurrentItemOrArmor(1).getItem() <-- now you can do things.

}

[PlatonCraft]

I already said that tried this.

And != null or ==null or !(.equal(null)) or .equal(null) not act at all

Now I tried this once again

    	if(par2EntityLivingBase.getCurrentItemOrArmor(1) != null) {
    	    System.out.println(par2EntityLivingBase.getCurrentItemOrArmor(1).getItem().toString());
    	}

And game not crash but nothing happens.

Also I tried ==null (Crash), if (!par2EntityLivingBase.getCurrentItemOrArmor(1).equals(null)) (Crash), par2EntityLivingBase.getCurrentItemOrArmor(1).equals(null) (Crash).

 

[Draco18s]

==null (Crash)

 

Duh.  If it equals null you can't then go accessing its child fields and methods.

 

If "nothing happens" when you do it like I said, are you sure the slot is not empty?

[PlatonCraft]

==null (Crash)

 

Duh.  If it equals null you can't then go accessing its child fields and methods.

 

If "nothing happens" when you do it like I said, are you sure the slot is not empty?

 

I got horse with saddle and iron armor. Also I tried slot numbers 0,2,3,4 But nothing happend.

[Draco18s]

Oh, you're dealing with a horse.

 

Welcome to Mojang Code.  only the player equipment can be referenced that way.  Almost every other entity uses its own inventory management system.

 

Looking through EntityHorse, it does not appear to be possible to reference its equipment. 

private AnimalChest horseChest; //yes, Mojang actually didn't use EntityLivingBase.equipment

[PlatonCraft]

Now I made it not crash if it horse or any another entity

b = ((par1EntityLivingBase.getCurrentItemOrArmor(3) != null && par1EntityLivingBase.getCurrentItemOrArmor(3).getItem() == armorarray[i])|(par1EntityLivingBase.getCurrentItemOrArmor(4) != null && par1EntityLivingBase.getCurrentItemOrArmor(4).getItem() == armorarray[i]))? true:false;

But how can I check horse's armor? I don't understand.

[Draco18s]

Now I made it not crash if it horse or any another entity

b = ((par1EntityLivingBase.getCurrentItemOrArmor(3) != null && par1EntityLivingBase.getCurrentItemOrArmor(3).getItem() == armorarray[i])|(par1EntityLivingBase.getCurrentItemOrArmor(4) != null && par1EntityLivingBase.getCurrentItemOrArmor(4).getItem() == armorarray[i]))? true:false;

But how can I check horse's armor? I don't understand.

 

It's stored in a private variable.

 

You can't.

[PlatonCraft]

Now I made it not crash if it horse or any another entity

b = ((par1EntityLivingBase.getCurrentItemOrArmor(3) != null && par1EntityLivingBase.getCurrentItemOrArmor(3).getItem() == armorarray[i])|(par1EntityLivingBase.getCurrentItemOrArmor(4) != null && par1EntityLivingBase.getCurrentItemOrArmor(4).getItem() == armorarray[i]))? true:false;

But how can I check horse's armor? I don't understand.

 

It's stored in a private variable.

 

You can't.

 

It's a pity

But I invented my own method =)

If TryCatch catches exception and getTotalArmorValue == 5 (this is when Horse iron armored)

then command work. =)

Thank you for help

 

 

P.S. Why can't I paste some code? I trying to paste smile, clicking it, and nothing happens. Also I can't paste spoilers, quotes, codes. I can't paste anything!! And I need to use spoiler /spoiler with [] It's very uncomfortable!! How can I fix it?

[Draco18s]

Works for me.

I tend to type BBCode tags anyway.