Inventaire multi fonction ( IItemHandler vs IInventory )

[Kporal]

ENFIN … ! Bon je poste l’intégralité de mon “kitbag” au cas ou que cela puisse aider quelqu’un !

KitbagCapability.java

package com.kporal.mcplus.items.kitbag;

import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.EnumFacing;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityInject;
import net.minecraftforge.common.capabilities.CapabilityManager;
import net.minecraftforge.items.IItemHandler;
import net.minecraftforge.items.IItemHandlerModifiable;
import net.minecraftforge.items.ItemStackHandler;

public class KitbagCapability {

	@CapabilityInject(KitbagHandler.class)
    public static Capability<KitbagHandler> VOIDSTORAGE_CAPABILITY = null;

    public static void register()
    {
        CapabilityManager.INSTANCE.register(KitbagHandler.class, new Capability.IStorage<KitbagHandler>()
        {
            @Override
            public NBTBase writeNBT(Capability<KitbagHandler> capability, KitbagHandler instance, EnumFacing side)
            {
                NBTTagList nbtTagList = new NBTTagList();
                int size = instance.getSlots();
                for (int i = 0; i < size; i++)
                {
                    ItemStack stack = instance.getStackInSlot(i);
                    if (!stack.isEmpty())
                    {
                        NBTTagCompound itemTag = new NBTTagCompound();
                        itemTag.setInteger("Slot", i);
                        stack.writeToNBT(itemTag);
                        nbtTagList.appendTag(itemTag);
                    }
                }
                return nbtTagList;
            }

            @Override
            public void readNBT(Capability<KitbagHandler> capability, KitbagHandler instance, EnumFacing side, NBTBase base)
            {
                if (!(instance instanceof IItemHandlerModifiable))
                    throw new RuntimeException("IItemHandler instance does not implement IItemHandlerModifiable");
                IItemHandlerModifiable itemHandlerModifiable = (IItemHandlerModifiable) instance;
                NBTTagList tagList = (NBTTagList) base;
                for (int i = 0; i < tagList.tagCount(); i++)
                {
                    NBTTagCompound itemTags = tagList.getCompoundTagAt(i);
                    int j = itemTags.getInteger("Slot");

                    if (j >= 0 && j < instance.getSlots())
                    {
                        itemHandlerModifiable.setStackInSlot(j, new ItemStack(itemTags));
                    }
                }
            }
        }, KitbagStackHandler::new);
    }
}

KitbagContainer.java

package com.kporal.mcplus.items.kitbag;

import com.kporal.mcplus.container.FuelFurnaceSlot;
import com.kporal.mcplus.container.OutputFurnaceSlot;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.IContainerListener;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.InventoryCraftResult;
import net.minecraft.inventory.InventoryCrafting;
import net.minecraft.inventory.Slot;
import net.minecraft.inventory.SlotCrafting;
import net.minecraft.item.ItemStack;
import net.minecraft.util.NonNullList;
import net.minecraft.world.World;
import net.minecraftforge.items.IItemHandler;
import net.minecraftforge.items.SlotItemHandler;

public class KitbagContainer extends Container {

    private int xPos = 5, yPos = 5, iid = 0, iRows = 8, iLines = 13, nSlots = iRows * iLines;
    
	public KitbagContainer( IItemHandler i, EntityPlayer p ) {
		
        // Container inventory :: 0 > 103
		for( int y = 0; y < iRows; ++y ) {
			for( int x = 0; x < iLines; ++x ) {
				addSlotToContainer( new SlotItemHandler( i, iid, xPos + x * 18, yPos + y * 18 ));
				iid++;
			}
		}
		
		// Workbench slots :: 104 > 113
		addSlotToContainer( new SlotItemHandler( i, iid, 167, 170 )); iid++;
        for (int y = 0; y < 3; ++y) {
        	for (int x = 0; x < 3; ++x) {
        		addSlotToContainer( new SlotItemHandler( i, iid, 185 + x * 18, 152 + y * 18 ));
        		iid++;
        	}
        }
		
		// Furnace slots :: 114 > 116
		addSlotToContainer( new SlotItemHandler( i, iid, 221, 209 )); iid++;
		addSlotToContainer( new FuelFurnaceSlot( i, iid, 185, 209 )); iid++;
		addSlotToContainer( new OutputFurnaceSlot( p, i, iid, 167, 209 ));
		
		yPos = 152;
		
		// Player inventory
		for( int y = 0; y < 3; ++y ) {
			for( int x = 0; x < 9; ++x ) {
				addSlotToContainer( new Slot( p.inventory, x + y * 9 + 9, xPos + x * 18, yPos + y * 18 ));
			}
		}
		
		// Player hotbar
		for( int x = 0; x < 9; ++x ) {
			addSlotToContainer( new Slot( p.inventory, x, xPos + x * 18, 209 ));
		}
	}
	
	@Override
	public ItemStack transferStackInSlot( EntityPlayer playerIn, int index ) {
        
		ItemStack itemstack = ItemStack.EMPTY;
        Slot slot = inventorySlots.get(index);

        if( slot != null && slot.getHasStack() ) {
            
        	ItemStack itemstack1 = slot.getStack();
            itemstack = itemstack1.copy();
            
            if( index == 104 ) {
                itemstack1.getItem().onCreated(itemstack1, playerIn.world, playerIn);
                
                if( !this.mergeItemStack(itemstack1, 0, nSlots, false )) {
                	return ItemStack.EMPTY;
                }

                slot.onSlotChange( itemstack1, itemstack );
            }
            
            else if( index < nSlots ) {
                if( !mergeItemStack( itemstack1, nSlots, inventorySlots.size(), true )) {
                	return ItemStack.EMPTY;
                }
            }
            
            else if( !mergeItemStack( itemstack1, 0, nSlots, false )) {
            	return ItemStack.EMPTY;
            }

            if ( itemstack1.isEmpty() ) {
            	slot.putStack( ItemStack.EMPTY );
            }
            else {
            	slot.onSlotChanged();
            }
            
            if( itemstack1.getCount() == itemstack.getCount() ) {
            	return ItemStack.EMPTY;
            }

            ItemStack itemstack2 = slot.onTake( playerIn, itemstack1 );

            if( index == 104 ) {
            	playerIn.dropItem( itemstack2, false );
            }
        }

        return itemstack;
	}
	
	@Override
	public boolean canInteractWith( EntityPlayer p ) {
		return true;
	}
}

KitbagGui.java

package com.kporal.mcplus.items.kitbag;

import com.kporal.mcplus.Main;

import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.tileentity.TileEntityFurnace;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.items.IItemHandler;

public class KitbagGui extends GuiContainer {

	private IItemHandler i;
	
	public KitbagGui( IItemHandler i, EntityPlayer p ) {
		super( new KitbagContainer( i, p ));
		
		this.xSize = 243;
		this.ySize = 230;
		this.i = i;
	}

	@Override
	protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
		GlStateManager.color( 1.0F, 1.0F, 1.0F, 1.0F );
		this.mc.getTextureManager().bindTexture( new ResourceLocation( Main.MODID, "textures/gui/container/bookmysteries.png" ) );
		this.drawTexturedModalRect( this.guiLeft, this.guiTop, 0, 0, this.xSize, this.ySize );
		
		// GuiFurnace.class
		int w = (this.width - this.xSize) / 2;
        int h = (this.height - this.ySize) / 2;
		int k = 5; // this.getBurnLeftScaled(13);
		this.drawTexturedModalRect( w + 204, h + 221 - k, 0, 243 - k, 14, k + 1 );

        int l = 12; // this.getCookProgressScaled( 15 );
        this.drawTexturedModalRect( w + 203, h + 224 - 1, 14, 230, l + 1, 2 );
	}
}

KitbagGuiHandler

package com.kporal.mcplus.items.kitbag;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.inventory.IInventory;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.IGuiHandler;
import net.minecraftforge.items.CapabilityItemHandler;
import net.minecraftforge.items.IItemHandler;

public class KitbagGuiHandler implements IGuiHandler {

	@Override
	public Object getServerGuiElement( int ID, EntityPlayer p, World w, int x, int y, int z ) {
		return new KitbagContainer(( IItemHandler ) p.getCapability( KitbagCapability.VOIDSTORAGE_CAPABILITY, null ), p );
	}

	@Override
	public Object getClientGuiElement( int ID, EntityPlayer p, World w, int x, int y, int z ) {
		return new KitbagGui(( IItemHandler ) p.getCapability( KitbagCapability.VOIDSTORAGE_CAPABILITY, null ), p );
	}
}

KitbagHandler.java

package com.kporal.mcplus.items.kitbag;

import javax.annotation.Nonnull;

import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraftforge.fluids.FluidStack;
import net.minecraftforge.fluids.capability.IFluidHandler;

public interface KitbagHandler {

    int getSlots();

    @Nonnull
    ItemStack getStackInSlot(int slot);

    @Nonnull
    ItemStack insertItem(int slot, @Nonnull ItemStack stack, boolean simulate);

    @Nonnull
    ItemStack extractItem(int slot, int amount, boolean simulate);

    int getSlotLimit(int slot);

    default boolean isItemValid(int slot, @Nonnull ItemStack stack) { return true; }
	
}

KitbagProvider.java

package com.kporal.mcplus.items.kitbag;

import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.EnumFacing;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityInject;
import net.minecraftforge.common.capabilities.ICapabilityProvider;
import net.minecraftforge.common.capabilities.ICapabilitySerializable;
import net.minecraftforge.items.CapabilityItemHandler;
import net.minecraftforge.items.ItemStackHandler;

public class KitbagProvider implements ICapabilityProvider, ICapabilitySerializable<NBTTagCompound> {
	
	private final KitbagStackHandler inventory;
	
	public KitbagProvider() {
		inventory = new KitbagStackHandler( 117 );
	}
	
	@Override
	public NBTTagCompound serializeNBT() {
		return inventory.serializeNBT();
	}

	@Override
	public void deserializeNBT( NBTTagCompound nbt ) {
		inventory.deserializeNBT( nbt );
	}

	@Override
	public boolean hasCapability( Capability<?> capability, EnumFacing facing ) {
		if( capability == KitbagCapability.VOIDSTORAGE_CAPABILITY ) {
			return true;
		}
		return false;
	}

	@Override
	public <T> T getCapability( Capability<T> capability, EnumFacing facing ) {
		if( capability == KitbagCapability.VOIDSTORAGE_CAPABILITY ) {
			return (T) inventory;
		}
		return null;
	}
}

KitbagStackHandler.java

package com.kporal.mcplus.items.kitbag;

import javax.annotation.Nonnull;

import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.NonNullList;
import net.minecraftforge.common.util.Constants;
import net.minecraftforge.common.util.INBTSerializable;
import net.minecraftforge.items.IItemHandler;
import net.minecraftforge.items.IItemHandlerModifiable;
import net.minecraftforge.items.ItemHandlerHelper;

public class KitbagStackHandler implements KitbagHandler, IItemHandlerModifiable, INBTSerializable<NBTTagCompound> {
	 protected NonNullList<ItemStack> stacks;

	    public KitbagStackHandler()
	    {
	        this(1);
	    }

	    public KitbagStackHandler(int size)
	    {
	        stacks = NonNullList.withSize(size, ItemStack.EMPTY);
	    }

	    public KitbagStackHandler(NonNullList<ItemStack> stacks)
	    {
	        this.stacks = stacks;
	    }

	    public void setSize(int size)
	    {
	        stacks = NonNullList.withSize(size, ItemStack.EMPTY);
	    }

	    @Override
	    public void setStackInSlot(int slot, @Nonnull ItemStack stack)
	    {
	        validateSlotIndex(slot);
	        this.stacks.set(slot, stack);
	        onContentsChanged(slot);
	    }

	    @Override
	    public int getSlots()
	    {
	        return stacks.size();
	    }

	    @Override
	    @Nonnull
	    public ItemStack getStackInSlot(int slot)
	    {
	        validateSlotIndex(slot);
	        return this.stacks.get(slot);
	    }

	    @Override
	    @Nonnull
	    public ItemStack insertItem(int slot, @Nonnull ItemStack stack, boolean simulate)
	    {
	        if (stack.isEmpty())
	            return ItemStack.EMPTY;

	        validateSlotIndex(slot);

	        ItemStack existing = this.stacks.get(slot);

	        int limit = getStackLimit(slot, stack);

	        if (!existing.isEmpty())
	        {
	            if (!ItemHandlerHelper.canItemStacksStack(stack, existing))
	                return stack;

	            limit -= existing.getCount();
	        }

	        if (limit <= 0)
	            return stack;

	        boolean reachedLimit = stack.getCount() > limit;

	        if (!simulate)
	        {
	            if (existing.isEmpty())
	            {
	                this.stacks.set(slot, reachedLimit ? ItemHandlerHelper.copyStackWithSize(stack, limit) : stack);
	            }
	            else
	            {
	                existing.grow(reachedLimit ? limit : stack.getCount());
	            }
	            onContentsChanged(slot);
	        }

	        return reachedLimit ? ItemHandlerHelper.copyStackWithSize(stack, stack.getCount()- limit) : ItemStack.EMPTY;
	    }

	    @Override
	    @Nonnull
	    public ItemStack extractItem(int slot, int amount, boolean simulate)
	    {
	        if (amount == 0)
	            return ItemStack.EMPTY;

	        validateSlotIndex(slot);

	        ItemStack existing = this.stacks.get(slot);

	        if (existing.isEmpty())
	            return ItemStack.EMPTY;

	        int toExtract = Math.min(amount, existing.getMaxStackSize());

	        if (existing.getCount() <= toExtract)
	        {
	            if (!simulate)
	            {
	                this.stacks.set(slot, ItemStack.EMPTY);
	                onContentsChanged(slot);
	            }
	            return existing;
	        }
	        else
	        {
	            if (!simulate)
	            {
	                this.stacks.set(slot, ItemHandlerHelper.copyStackWithSize(existing, existing.getCount() - toExtract));
	                onContentsChanged(slot);
	            }

	            return ItemHandlerHelper.copyStackWithSize(existing, toExtract);
	        }
	    }

	    @Override
	    public int getSlotLimit(int slot)
	    {
	        return 64;
	    }

	    protected int getStackLimit(int slot, @Nonnull ItemStack stack)
	    {
	        return Math.min(getSlotLimit(slot), stack.getMaxStackSize());
	    }

	    @Override
	    public boolean isItemValid(int slot, @Nonnull ItemStack stack)
	    {
	        return true;
	    }

	    @Override
	    public NBTTagCompound serializeNBT()
	    {
	        NBTTagList nbtTagList = new NBTTagList();
	        for (int i = 0; i < stacks.size(); i++)
	        {
	            if (!stacks.get(i).isEmpty())
	            {
	                NBTTagCompound itemTag = new NBTTagCompound();
	                itemTag.setInteger("Slot", i);
	                stacks.get(i).writeToNBT(itemTag);
	                nbtTagList.appendTag(itemTag);
	            }
	        }
	        NBTTagCompound nbt = new NBTTagCompound();
	        nbt.setTag("Items", nbtTagList);
	        nbt.setInteger("Size", stacks.size());
	        return nbt;
	    }

	    @Override
	    public void deserializeNBT(NBTTagCompound nbt)
	    {
	        setSize(nbt.hasKey("Size", Constants.NBT.TAG_INT) ? nbt.getInteger("Size") : stacks.size());
	        NBTTagList tagList = nbt.getTagList("Items", Constants.NBT.TAG_COMPOUND);
	        for (int i = 0; i < tagList.tagCount(); i++)
	        {
	            NBTTagCompound itemTags = tagList.getCompoundTagAt(i);
	            int slot = itemTags.getInteger("Slot");

	            if (slot >= 0 && slot < stacks.size())
	            {
	                stacks.set(slot, new ItemStack(itemTags));
	            }
	        }
	        onLoad();
	    }

	    protected void validateSlotIndex(int slot)
	    {
	        if (slot < 0 || slot >= stacks.size())
	            throw new RuntimeException("Slot " + slot + " not in valid range - [0," + stacks.size() + ")");
	    }

	    protected void onLoad()
	    {

	    }

	    protected void onContentsChanged(int slot)
	    {

	    }
}

PS: J’ai simplement fais un gros copier coller de toute la capability CapabilityItemHandler.ITEM_HANDLER_CAPABILITY sans instancier celle-ci via l’item évidement.
Mais bref, le code est néanmoins incomplet mais il est fonctionnel.

[Kporal]

Fin du code : ( pour rendre le contenu permanent )

@SubscribeEvent
	public void cloneEvent( PlayerEvent.Clone e ) {
		if( e.isWasDeath() ) {
			
			KitbagHandler o = e.getOriginal().getCapability( KitbagCapability.VOIDSTORAGE_CAPABILITY, null );
			KitbagHandler i = e.getEntityPlayer().getCapability( KitbagCapability.VOIDSTORAGE_CAPABILITY, null );
			
			for( int k = 0; k < o.getSlots(); k++ ) {
				i.insertItem( k, o.getStackInSlot( k ), false );
			}
		}
	}
	
	@SubscribeEvent
	public void addCapability( AttachCapabilitiesEvent<Entity> event ) {
		if( event.getObject() instanceof EntityPlayer ) {
			event.addCapability( new ResourceLocation( Main.MODID, "voidStorage" ), new KitbagProvider() );
		}
	}