SpongeAPI | SpongeCommon | SpongeForge

Restructure internal Inventory classes:

• InventoryAdapter Adapter interface (implements Inventory)
  • MinecraftInventoryAdapter default implement most of Inventory
    • AbstractInventoryAdapter Adapter implementation (all types)
      • VanillaAdapter (IInventory)
        • Conceptual Inventory Adapters: OrderedInventoryAdapter etc.
      • SlotAdapter (Wrapper for inventories without real Slot)
        • specific SlotAdapters: FilteringSlotAdapter etc.
      • MinecraftQueryResultAdapter
      • IItemHandlerAdapter (Forge)
    • Adapter Mixins:
      • MixinTraitInventory Implement Inventory interface using Adapter Interface
      • MixinTraitAdapter Implement Adapter interface (based on Reusable/LensProvider)
      • TileEntity Mixins etc.
    • Forge Adapter Mixins: MixinInvWrapper, MixinItemStackHandler
    • Forge Wrapper: IItemHandlerAdapter
    • MixinSlot, (Container Slots)
    • MixinSlotItemHandler (Forge)
    • Sponge Inventories: MixinCustomInventory, MixinSpongeUserInventory
• Lens
  • AbstractLens
    • RealLens Lenses for real inventories (gets real inventories if mixed in)
      • ContainerLens constructed with lenses of sub-inventories
        • ContainerPlayerInventoryLens
      • CustomLens (for Sponge Inventories)
      • Lenses for vanilla inventories: FurnaceInventoryLens etc.
    • ConceptualLens Lenses for inventory concepts
      • CompoundLens used for union operation
      • OrderedInventoryLensImpl etc.
    • DelegatingLens (used in Containers) spanning child is orderedlens ; child is delegate
    • DefaultIndexedLens fallback
    • QueryLens for query results
  • SlotLens -> SlotLensImpl, FakeSlotLensImpl etc.
  • DefaultEmptyLens
• Fabric
  • MinecraftFabric (IInventory based)
    • CompoundFabric (based on 2 other MinecraftFabric)
    • ContainerFabric (based on Set of IInventory in Container)
    • IInventoryFabric (based on a single IInventory)
    • SlotFabric (based on a single Slot)
  • IItemHandlerFabric (based on Forge IItemHandler)

Move Adapter.Logic into its own class.
Move as much implementation into the same place instead of duplicating it.
Lazy Lens creation (MixinTraitAdapter) based on LensProvider interfaces
Reusable Lenses (lenses for TileEntities only need to be constructed once)

A nice sideeffect of this whole thing is that you can now query for TileEntity.class on Containers and you get it (for vanilla / TileEntities we applied mixin to).

Also Container structure is more uniform (Spanning Children are always VanillaAdapters with an OrderedInventory ; VanillaAdapter with delegating lens can forward to the real inventory + we can reuse the inventory lens in the container)

	ContainerChest 63 parent ContainerChest  sub: 2 
		VanillaAdapter 27 parent ContainerChest  sub: 1 
			OrderedInventoryAdapter 27 parent VanillaAdapter  sub: 27 |||||||||||||||||||||||||||
		VanillaAdapter 36 parent ContainerChest  sub: 1 
			OrderedInventoryAdapter 36 parent VanillaAdapter  sub: 36 ||||||||||||||||||||||||||||||||||||

	TileEntityChest 27 parent TileEntityChest  sub: 3 
		InventoryRowAdapter 9 parent TileEntityChest  sub: 9 |||||||||
		InventoryRowAdapter 9 parent TileEntityChest  sub: 9 |||||||||
		InventoryRowAdapter 9 parent TileEntityChest  sub: 9 |||||||||

	InventoryPlayer 41 parent InventoryPlayer  sub: 3 
		MainPlayerInventoryAdapter 36 parent InventoryPlayer  sub: 2 
			GridInventoryAdapter 27 parent MainPlayerInventoryAdapter  sub: 3 
				InventoryRowAdapter 9 parent GridInventoryAdapter  sub: 9 |||||||||
				InventoryRowAdapter 9 parent GridInventoryAdapter  sub: 9 |||||||||
				InventoryRowAdapter 9 parent GridInventoryAdapter  sub: 9 |||||||||
			HotbarAdapter 9 parent MainPlayerInventoryAdapter  sub: 9 |||||||||
		EquipmentInventoryAdapter 4 parent InventoryPlayer  sub: 4 ||||
		SlotAdapter 1 parent InventoryPlayer  sub: 0 

	ContainerFurnace 39 parent ContainerFurnace  sub: 2 
		VanillaAdapter 3 parent ContainerFurnace  sub: 1 
			OrderedInventoryAdapter 3 parent VanillaAdapter  sub: 3 |||
		VanillaAdapter 36 parent ContainerFurnace  sub: 1 
			OrderedInventoryAdapter 36 parent VanillaAdapter  sub: 36 ||||||||||||||||||||||||||||||||||||

	TileEntityFurnace 3 parent TileEntityFurnace  sub: 3 
		InputSlotAdapter 1 parent TileEntityFurnace  sub: 0 
		FuelSlotAdapter 1 parent TileEntityFurnace  sub: 0 
		OutputSlotAdapter 1 parent TileEntityFurnace  sub: 0 

	ContainerBrewingStand 41 parent ContainerBrewingStand  sub: 2 
		VanillaAdapter 5 parent ContainerBrewingStand  sub: 1 
			OrderedInventoryAdapter 5 parent VanillaAdapter  sub: 5 |||||
		VanillaAdapter 36 parent ContainerBrewingStand  sub: 1 
			OrderedInventoryAdapter 36 parent VanillaAdapter  sub: 36 ||||||||||||||||||||||||||||||||||||

	TileEntityBrewingStand 5 parent TileEntityBrewingStand  sub: 3 
		OrderedInventoryAdapter 3 parent TileEntityBrewingStand  sub: 3 |||
		InputSlotAdapter 1 parent TileEntityBrewingStand  sub: 0 
		FuelSlotAdapter 1 parent TileEntityBrewingStand  sub: 0