Would like some help again if possible. In 1.8.9 I had the code(Next line down)

GameRegistry.registerItem(PreInit.topaz_chestplate = new ItemTopazArmor("topaz_chestplate", PreInit.topazA, 1,  1), "topaz_chestplate");

 

When brought over to 1.9, it seems to have changed, this is the Vanilla diamond armor for 1.9.

registerItem(310, "diamond_helmet", (new ItemArmor(ItemArmor.ArmorMaterial.DIAMOND, 3, EntityEquipmentSlot.HEAD)).setUnlocalizedName("helmetDiamond"));

 

When trying to replicate that for my topaz helmet, I get no errors in coding, but I do get a crash which points back towards that line, here is my replicate code for the Topaz Helmet

GameRegistry.registerItem(PreInit.topaz_helmet = new ItemTopazArmor("topaz_helmet", PreInit.topazA, 3, EntityEquipmentSlot.HEAD));

 

Any help on this one? Thanks.

you are probably getting a null pointer exception because you are doing an assignment inside of a function call. Move your assignment statement in front of the register call and pass in the variable.

The error in the console I get is

Initializing game

 

java.lang.IllegalArgumentException: Attempted to register a block with no name: com.rbs.slurpiesdongles.armor.ItemTopazArmor@1f1a57e8

 

Here is the pastebin of the crash report

http://pastebin.com/rFJugP9N

GameRegistry.registerItem(Item, String)

registers the item with the specified name.

GameRegistry.registerItem(Item)

registers the item with its registry name, which can be set with

Item#setRegistryName

. You haven't set the item's registry name, so

GameRegistry.registerItem(Item)

throws an exception.