Major things to note:
Class renames: https://gist.github.com/LexManos/44dd211f90f498ad4015279b103dff86
Tile Entities are now packed in the ChunkData packet.
Forge intends to work around this to better support large moded worlds, but for the time being modders should implement the new function carefully and only send what data they need to!
Minecraft's codebase now has annotations, these are directly from Mojang and should be adheared to!
Added support for package-info.java's containing @Nullable information for all MC code base.
Modders can now modify and reference internal elements of a loot table by name.
Editing can ONLY be done in the event and any external editing will cause a exception to be thrown.
See this gist for more information: https://gist.github.com/LexManos/77c983d67b9ad27010428478b66d50fd
Entry point: ModelLoaderRegistry
loader interface: ICustomModelLoader
custom model: IModel
ModelLoader is responsible for splicing into vanilla model system.
(you probably don't need to use it directly)
Interop with vanilla models isn't great yet
(vanilla models can't refer to custom ones as parents), will improve in
the future.
Includes loader for B3D models, with animation support
(net.minecraftforge.client.model.b3d).
Blender export plugin with compatible coordinate system:
https://github.com/RainWarrior/B3DExport
OBJ loader is being written, will be included at some point in the
future. For now you can convert OBJ to B3D via blender, or wait.
Some notes:
Almost all int x, int y, int z parameters have been changed to BlockPos class
ForgeDirection has been removed, replaced by net.minecraft.util.EnumFacing.
All FML classes have moved from packet cpw.mods.fml to net.minecraftforge.fml
Fluid Rendering has been disabled for the time being, to be re-evaulated and a test mod created for it.
Minecraft now uses a Model based system for rendering blocks and Items. The intention is to expand the model format to better suit modder's needed once it is evaulated.
As such, The model loaders from Forge have been removed, to be replaced by expanding vanilla's model format.
Metadata has been extracted out in Minecraft to IBlockState, which holds a list of properties instead of magic number metadata. DO NOT listen to the fearmongering, you can do EVERYTHING with block states you could previously with metadata.
Stencil Bits are disabled entirely by for the main Display, Modders must enable and recreate the FrameBuffer if they wish to use Stencil Bits.
* Added ability to AnvilUpdateEvent to alter stackSizeToBeUsedInRepair (vanilla behavior is now reproducable)
* Added AnvilRepairEvent, fired when the player removes an ItemStack from the output slot of ContainerRepair, and allows the chance to damage the anvil to be altered.