How to extend vanilla skull?

[Wuodan]

I would like to either create my own block and item based on BlockSkull and ItemSkull, so make use of the existing model and rendering, or, extend the vanilla classes? How can I do that?

 

I've tried creating the block and ItemBlock, but I hit problems like:

 

[17:22:28] [Client thread/ERROR] [FML]: Exception loading model for variant examplemod:myskull#facing=south,nodrop=false for blockstate "examplemod:myskull[facing=south,nodrop=false]"

net.minecraftforge.client.model.ModelLoaderRegistry$LoaderException: Exception loading model examplemod:myskull#facing=south,nodrop=false with loader VariantLoader.INSTANCE, skipping

 

The Minecraft and Forge source code is still too twisted for me to follow.

 

I've also tried:

 

GameRegistry.addSubstitutionAlias("minecraft:skull", GameRegistry.Type.BLOCK, mySkull);

 

but that didn't work. I even tried just aliasing sand but get this:

 

java.lang.RuntimeException: Duplicate stat id: "TranslatableComponent{key='stat.useItem', args=[TextComponent{text='[', siblings=[TextComponent{text='Sand', siblings=[], style=Style{hasParent=true, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}, TextComponent{text=']', siblings=[], style=Style{hasParent=true, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}], style=Style{hasParent=true, color=§f, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}" and "TranslatableComponent{key='stat.useItem', args=[TextComponent{text='[', siblings=[TextComponent{text='Sand', siblings=[], style=Style{hasParent=true, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}, TextComponent{text=']', siblings=[], style=Style{hasParent=true, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}], style=Style{hasParent=true, color=§f, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=HoverEvent{action=SHOW_ITEM, value='TextComponent{text='{id:"minecraft:sand",Count:1b,Damage:0s}', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}'}, insertion=null}}], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}" at id stat.useItem.minecraft.sand

at net.minecraft.stats.StatBase.registerStat(StatBase.java:111) ~[forgeSrc-1.9.4-12.17.0.1976.jar:?]

 

I've also tried using forge-1.10.2-12.18.1.2011-mdk

 

Is it possible to either extend BlockSkull (and ItemSkull, TileEntitySkull), or, replace the vanilla classes with my customized classes?

[Draco18s]

Are you trying to create a NEW block that acts like a skull or are you trying to REPLACE the skull block class with a new one?

[Wuodan]

I would be happy either way. If I create a new block that acts like a skull, then I can conveniently take advantage of the rendering and it will just have the same look and feel of skull blocks, items, and tile entities. I can then customize the texture and behavior as needed.

 

If I extend the vanilla class, it would only be to add a new subtype for the same purpose -- I want a new skull item with its own texture and behavior. I could just tweak the vanilla class enough to allow for an extra skull type and change its behavior accordingly.

[Draco18s]

Then don't use addSubstitutionAlias