How to Make a GUI

[MrNegaBlox]

So Im trying to make a furnace by copying the Tile Entity Code and I don't know how to set the texture and also, it doesn't show any sign of the GUI showing up when I right click My block. How do I add the GUI and the slots. in areas

 

Main:

package gummyBah.MainClass;

import net.minecraft.block.Block;
import net.minecraft.block.BlockBreakable;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.entity.RenderSnowball;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.Item;
import net.minecraft.item.ItemFood;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.Potion;
import net.minecraft.src.ModLoader;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraftforge.common.Configuration;
import net.minecraftforge.common.DimensionManager;
import net.minecraftforge.common.MinecraftForge;
import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;

@Mod(modid="GummyBah", name="GummyBear", version="1.0.0")
@NetworkMod(clientSideRequired=true, serverSideRequired=false)
public class Main {
public static CreativeTabs tabBlasters = new CreativeTabs("tabBlasters") {
        public ItemStack getIconItemStack() {
                return new ItemStack(RGummyBear, 1, 0);
        }
};


        // The instance of your mod that Forge uses.
	public final static Item RGummyBear = new RGummyBear(4095, 1, 1, false).setPotionEffect(Potion.fireResistance.id, 300, 1, 100.0F).func_111206_d("bettermc:GummyBearRed");;
	public final static Item GGBear = new GGummyBear(4094, 1, 1, false).setPotionEffect(Potion.jump.id, 300, 5, 100.0F).func_111206_d("bettermc:GummyBearGreen");;
	public final static Item BGBear = new BGummyBear(4093, 1, 1, false).setPotionEffect(Potion.waterBreathing.id, 300, 5, 100.0F).func_111206_d("bettermc:GummyBearBlue");;
	public final static Block CarmelOven = new Carmalizer(4092, Material.ground);
        @Instance("Test")
        public static Main instance;
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="gummyBah.MainClass.client.ClientProxy", serverSide="gummyBah.MainClass.CommonProxy")
        public static CommonProxy proxy;
        

        
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
        	Configuration config = new Configuration(event.getSuggestedConfigurationFile());
        	config.load();
            
        	config.save();
        }
        
        @EventHandler
        public void Init(FMLInitializationEvent event) {
        	LanguageRegistry.instance().addStringLocalization("carmel", "en_US",  "Carmalizer");
        	GameRegistry.registerBlock(CarmelOven, "Carmalizer");
        	LanguageRegistry.addName(CarmelOven, "Carmalizer");
        	LanguageRegistry.addName(RGummyBear, "Red Gummy Bear");
        	GameRegistry.registerTileEntity(gummyBah.MainClass.CarmalizerTileEntity.class, "carmal");
        	LanguageRegistry.addName(GGBear, "Green Gummy Bear");
        	LanguageRegistry.addName(BGBear, "Blue Gummy Bear");
        	GameRegistry.registerItem(RGummyBear, "Red Gummy Bear");
        	GameRegistry.registerItem(GGBear, "Green Gummy Bear");
        	GameRegistry.registerItem(BGBear, "Blue Gummy Bear");
        	LanguageRegistry.instance().addStringLocalization("tabBlasters", "en_US", "Gummy Mod");
            proxy.registerRenderers();
                }
        
            
        
            
        
        
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
}

Block:

package gummyBah.MainClass;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class Carmalizer extends Block {

public Carmalizer(int id, Material material){
	super(id, material);

	this.setHardness(0.5F);
	this.setStepSound(Block.soundGravelFootstep);
	this.setUnlocalizedName("carmel");
	this.setCreativeTab(gummyBah.MainClass.Main.tabBlasters);
	this.func_111022_d("bettermc:CandyFurnace");

}

public TileEntity createTileEntity(World world, int metadata)
{
   return new CarmalizerTileEntity();
}

}

Tile Entity:

package gummyBah.MainClass;

import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFurnace;
import net.minecraft.block.material.Material;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemHoe;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.item.ItemTool;
import net.minecraft.item.crafting.FurnaceRecipes;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.common.ForgeDummyContainer;

public class CarmalizerTileEntity extends TileEntity implements ISidedInventory
{
    private static final int[] slots_top = new int[] {0};
    private static final int[] slots_bottom = new int[] {2, 1};
    private static final int[] slots_sides = new int[] {1};

    /**
     * The ItemStacks that hold the items currently being used in the furnace
     */
    private ItemStack[] furnaceItemStacks = new ItemStack[3];

    /** The number of ticks that the furnace will keep burning */
    public int furnaceBurnTime;

    /**
     * The number of ticks that a fresh copy of the currently-burning item would keep the furnace burning for
     */
    public int currentItemBurnTime;

    /** The number of ticks that the current item has been cooking for */
    public int furnaceCookTime;
    private String field_94130_e;

    /**
     * Returns the number of slots in the inventory.
     */
    public int getSizeInventory()
    {
        return this.furnaceItemStacks.length;
    }

    /**
     * Returns the stack in slot i
     */
    public ItemStack getStackInSlot(int par1)
    {
        return this.furnaceItemStacks[par1];
    }

    /**
     * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
     * new stack.
     */
    public ItemStack decrStackSize(int par1, int par2)
    {
        if (this.furnaceItemStacks[par1] != null)
        {
            ItemStack itemstack;

            if (this.furnaceItemStacks[par1].stackSize <= par2)
            {
                itemstack = this.furnaceItemStacks[par1];
                this.furnaceItemStacks[par1] = null;
                return itemstack;
            }
            else
            {
                itemstack = this.furnaceItemStacks[par1].splitStack(par2);

                if (this.furnaceItemStacks[par1].stackSize == 0)
                {
                    this.furnaceItemStacks[par1] = null;
                }

                return itemstack;
            }
        }
        else
        {
            return null;
        }
    }

    /**
     * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
     * like when you close a workbench GUI.
     */
    public ItemStack getStackInSlotOnClosing(int par1)
    {
        if (this.furnaceItemStacks[par1] != null)
        {
            ItemStack itemstack = this.furnaceItemStacks[par1];
            this.furnaceItemStacks[par1] = null;
            return itemstack;
        }
        else
        {
            return null;
        }
    }

    /**
     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
     */
    public void setInventorySlotContents(int par1, ItemStack par2ItemStack)
    {
        this.furnaceItemStacks[par1] = par2ItemStack;

        if (par2ItemStack != null && par2ItemStack.stackSize > this.getInventoryStackLimit())
        {
            par2ItemStack.stackSize = this.getInventoryStackLimit();
        }
    }

    /**
     * Returns the name of the inventory.
     */
    public String getInvName()
    {
        return this.isInvNameLocalized() ? this.field_94130_e : "container.furnace";
    }

    /**
     * If this returns false, the inventory name will be used as an unlocalized name, and translated into the player's
     * language. Otherwise it will be used directly.
     */
    public boolean isInvNameLocalized()
    {
        return this.field_94130_e != null && this.field_94130_e.length() > 0;
    }

    /**
     * Sets the custom display name to use when opening a GUI linked to this tile entity.
     */
    public void setGuiDisplayName(String par1Str)
    {
        this.field_94130_e = par1Str;
    }

    /**
     * Reads a tile entity from NBT.
     */
    public void readFromNBT(NBTTagCompound par1NBTTagCompound)
    {
        super.readFromNBT(par1NBTTagCompound);
        NBTTagList nbttaglist = par1NBTTagCompound.getTagList("Items");
        this.furnaceItemStacks = new ItemStack[this.getSizeInventory()];

        for (int i = 0; i < nbttaglist.tagCount(); ++i)
        {
            NBTTagCompound nbttagcompound1 = (NBTTagCompound)nbttaglist.tagAt(i);
            byte b0 = nbttagcompound1.getByte("Slot");

            if (b0 >= 0 && b0 < this.furnaceItemStacks.length)
            {
                this.furnaceItemStacks[b0] = ItemStack.loadItemStackFromNBT(nbttagcompound1);
            }
        }

        this.furnaceBurnTime = par1NBTTagCompound.getShort("BurnTime");
        this.furnaceCookTime = par1NBTTagCompound.getShort("CookTime");
        this.currentItemBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

        if (par1NBTTagCompound.hasKey("CustomName"))
        {
            this.field_94130_e = par1NBTTagCompound.getString("CustomName");
        }
    }

    /**
     * Writes a tile entity to NBT.
     */
    public void writeToNBT(NBTTagCompound par1NBTTagCompound)
    {
        super.writeToNBT(par1NBTTagCompound);
        par1NBTTagCompound.setShort("BurnTime", (short)this.furnaceBurnTime);
        par1NBTTagCompound.setShort("CookTime", (short)this.furnaceCookTime);
        NBTTagList nbttaglist = new NBTTagList();

        for (int i = 0; i < this.furnaceItemStacks.length; ++i)
        {
            if (this.furnaceItemStacks[i] != null)
            {
                NBTTagCompound nbttagcompound1 = new NBTTagCompound();
                nbttagcompound1.setByte("Slot", (byte)i);
                this.furnaceItemStacks[i].writeToNBT(nbttagcompound1);
                nbttaglist.appendTag(nbttagcompound1);
            }
        }

        par1NBTTagCompound.setTag("Items", nbttaglist);

        if (this.isInvNameLocalized())
        {
            par1NBTTagCompound.setString("CustomName", this.field_94130_e);
        }
    }

    /**
     * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
     * this more of a set than a get?*
     */
    public int getInventoryStackLimit()
    {
        return 64;
    }

    @SideOnly(Side.CLIENT)

    /**
     * Returns an integer between 0 and the passed value representing how close the current item is to being completely
     * cooked
     */
    public int getCookProgressScaled(int par1)
    {
        return this.furnaceCookTime * par1 / 200;
    }

    @SideOnly(Side.CLIENT)

    /**
     * Returns an integer between 0 and the passed value representing how much burn time is left on the current fuel
     * item, where 0 means that the item is exhausted and the passed value means that the item is fresh
     */
    public int getBurnTimeRemainingScaled(int par1)
    {
        if (this.currentItemBurnTime == 0)
        {
            this.currentItemBurnTime = 200;
        }

        return this.furnaceBurnTime * par1 / this.currentItemBurnTime;
    }

    /**
     * Returns true if the furnace is currently burning
     */
    public boolean isBurning()
    {
        return this.furnaceBurnTime > 0;
    }

    /**
     * Allows the entity to update its state. Overridden in most subclasses, e.g. the mob spawner uses this to count
     * ticks and creates a new spawn inside its implementation.
     */
    public void updateEntity()
    {
        boolean flag = this.furnaceBurnTime > 0;
        boolean flag1 = false;

        if (this.furnaceBurnTime > 0)
        {
            --this.furnaceBurnTime;
        }

        if (!this.worldObj.isRemote)
        {
            if (this.furnaceBurnTime == 0 && this.canSmelt())
            {
                this.currentItemBurnTime = this.furnaceBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

                if (this.furnaceBurnTime > 0)
                {
                    flag1 = true;

                    if (this.furnaceItemStacks[1] != null)
                    {
                        --this.furnaceItemStacks[1].stackSize;

                        if (this.furnaceItemStacks[1].stackSize == 0)
                        {
                            this.furnaceItemStacks[1] = this.furnaceItemStacks[1].getItem().getContainerItemStack(furnaceItemStacks[1]);
                        }
                    }
                }
            }

            if (this.isBurning() && this.canSmelt())
            {
                ++this.furnaceCookTime;

                if (this.furnaceCookTime == 200)
                {
                    this.furnaceCookTime = 0;
                    this.smeltItem();
                    flag1 = true;
                }
            }
            else
            {
                this.furnaceCookTime = 0;
            }

            if (flag != this.furnaceBurnTime > 0)
            {
                flag1 = true;
                BlockFurnace.updateFurnaceBlockState(this.furnaceBurnTime > 0, this.worldObj, this.xCoord, this.yCoord, this.zCoord);
            }
        }

        if (flag1)
        {
            this.onInventoryChanged();
        }
    }

    /**
     * Returns true if the furnace can smelt an item, i.e. has a source item, destination stack isn't full, etc.
     */
    private boolean canSmelt()
    {
        if (this.furnaceItemStacks[0] == null)
        {
            return false;
        }
        else
        {
            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
            if (itemstack == null) return false;
            if (this.furnaceItemStacks[2] == null) return true;
            if (!this.furnaceItemStacks[2].isItemEqual(itemstack)) return false;
            int result = furnaceItemStacks[2].stackSize + itemstack.stackSize;
            return (result <= getInventoryStackLimit() && result <= itemstack.getMaxStackSize());
        }
    }

    /**
     * Turn one item from the furnace source stack into the appropriate smelted item in the furnace result stack
     */
    public void smeltItem()
    {
        if (this.canSmelt())
        {
            ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);

            if (this.furnaceItemStacks[2] == null)
            {
                this.furnaceItemStacks[2] = itemstack.copy();
            }
            else if (this.furnaceItemStacks[2].isItemEqual(itemstack))
            {
                furnaceItemStacks[2].stackSize += itemstack.stackSize;
            }

            --this.furnaceItemStacks[0].stackSize;

            if (this.furnaceItemStacks[0].stackSize <= 0)
            {
                this.furnaceItemStacks[0] = null;
            }
        }
    }

    /**
     * Returns the number of ticks that the supplied fuel item will keep the furnace burning, or 0 if the item isn't
     * fuel
     */
    public static int getItemBurnTime(ItemStack par0ItemStack)
    {
        if (par0ItemStack == null)
        {
            return 0;
        }
        else
        {
            int i = par0ItemStack.getItem().itemID;
            Item item = par0ItemStack.getItem();
            if (i == Item.sugar.itemID) return 1600;
            //if (i == )
            return GameRegistry.getFuelValue(par0ItemStack);
        }
    }

    /**
     * Return true if item is a fuel source (getItemBurnTime() > 0).
     */
    public static boolean isItemFuel(ItemStack par0ItemStack)
    {
        return getItemBurnTime(par0ItemStack) > 0;
    }

    /**
     * Do not make give this method the name canInteractWith because it clashes with Container
     */
    public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
    {
        return this.worldObj.getBlockTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : par1EntityPlayer.getDistanceSq((double)this.xCoord + 0.5D, (double)this.yCoord + 0.5D, (double)this.zCoord + 0.5D) <= 64.0D;
    }

    public void openChest() {}

    public void closeChest() {}

    /**
     * Returns true if automation is allowed to insert the given stack (ignoring stack size) into the given slot.
     */
    public boolean isItemValidForSlot(int par1, ItemStack par2ItemStack)
    {
        return par1 == 2 ? false : (par1 == 1 ? isItemFuel(par2ItemStack) : true);
    }

    /**
     * Returns an array containing the indices of the slots that can be accessed by automation on the given side of this
     * block.
     */
    public int[] getAccessibleSlotsFromSide(int par1)
    {
        return par1 == 0 ? slots_bottom : (par1 == 1 ? slots_top : slots_sides);
    }

    /**
     * Returns true if automation can insert the given item in the given slot from the given side. Args: Slot, item,
     * side
     */
    public boolean canInsertItem(int par1, ItemStack par2ItemStack, int par3)
    {
        return this.isItemValidForSlot(par1, par2ItemStack);
    }

    /**
     * Returns true if automation can extract the given item in the given slot from the given side. Args: Slot, item,
     * side
     */
    public boolean canExtractItem(int par1, ItemStack par2ItemStack, int par3)
    {
        return par3 != 0 || par1 != 1 || par2ItemStack.itemID == Item.bucketEmpty.itemID;
    }

@Override
public void onInventoryChanged() {
	// TODO Auto-generated method stub

}
}

Recipes:

package gummyBah.MainClass;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.minecraft.block.Block;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;

public class CarmelRecipes
{
    private static final CarmelRecipes smeltingBase = new CarmelRecipes();

    /** The list of smelting results. */
    private Map smeltingList = new HashMap();
    private Map experienceList = new HashMap();
    private HashMap<List<Integer>, ItemStack> metaSmeltingList = new HashMap<List<Integer>, ItemStack>();
    private HashMap<List<Integer>, Float> metaExperience = new HashMap<List<Integer>, Float>();

    /**
     * Used to call methods addSmelting and getSmeltingResult.
     */
    public static final CarmelRecipes smelting()
    {
        return smeltingBase;
    }

    private CarmelRecipes()
    {
        this.addSmelting(Item.slimeBall.itemID, new ItemStack(gummyBah.MainClass.Main.GGBear), 0.7F);
    }

    /**
     * Adds a smelting recipe.
     */
    public void addSmelting(int par1, ItemStack par2ItemStack, float par3)
    {
        this.smeltingList.put(Integer.valueOf(par1), par2ItemStack);
        this.experienceList.put(Integer.valueOf(par2ItemStack.itemID), Float.valueOf(par3));
    }

    /**
     * Returns the smelting result of an item.
     * Deprecated in favor of a metadata sensitive version
     */
    @Deprecated
    public ItemStack getSmeltingResult(int par1)
    {
        return (ItemStack)this.smeltingList.get(Integer.valueOf(par1));
    }

    public Map getSmeltingList()
    {
        return this.smeltingList;
    }

    @Deprecated //In favor of ItemStack sensitive version
    public float getExperience(int par1)
    {
        return this.experienceList.containsKey(Integer.valueOf(par1)) ? ((Float)this.experienceList.get(Integer.valueOf(par1))).floatValue() : 0.0F;
    }

    /**
     * A metadata sensitive version of adding a furnace recipe.
     */
    public void addSmelting(int itemID, int metadata, ItemStack itemstack, float experience)
    {
        metaSmeltingList.put(Arrays.asList(itemID, metadata), itemstack);
        metaExperience.put(Arrays.asList(itemstack.itemID, itemstack.getItemDamage()), experience);
    }

    /**
     * Used to get the resulting ItemStack form a source ItemStack
     * @param item The Source ItemStack
     * @return The result ItemStack
     */
    public ItemStack getSmeltingResult(ItemStack item) 
    {
        if (item == null)
        {
            return null;
        }
        ItemStack ret = (ItemStack)metaSmeltingList.get(Arrays.asList(item.itemID, item.getItemDamage()));
        if (ret != null) 
        {
            return ret;
        }
        return (ItemStack)smeltingList.get(Integer.valueOf(item.itemID));
    }

    /**
     * Grabs the amount of base experience for this item to give when pulled from the furnace slot.
     */
    public float getExperience(ItemStack item)
    {
        if (item == null || item.getItem() == null)
        {
            return 0;
        }
        float ret = item.getItem().getSmeltingExperience(item);
        if (ret < 0 && metaExperience.containsKey(Arrays.asList(item.itemID, item.getItemDamage())))
        {
            ret = metaExperience.get(Arrays.asList(item.itemID, item.getItemDamage()));
        }
        if (ret < 0 && experienceList.containsKey(item.itemID))
        {
            ret = ((Float)experienceList.get(item.itemID)).floatValue();
        }
        return (ret < 0 ? 0 : ret);
    }

    public Map<List<Integer>, ItemStack> getMetaSmeltingList()
    {
        return metaSmeltingList;
    }
}

 

Thank you in advance

[chimera27]

Vanilla code works a bit differently then mod code in some cases, so just copying and modifying it isn't usually the best option. It's better to simply make it yourself so you get the experience anyway, instead of just modifying pre-written code. A good tutorial on it is here:

 

[Romejanic]

For making a GUI, make a new class extending the GuiScreen class. You can look in the net.minecraft.client.gui packages for help.

 

When it comes to displaying it, you just say

Minecraft.getMinecraft().displayGuiScreen(new MyGuiScreen());

 

But make sure this code is only executed in a

@SideOnly(Side.CLIENT)

method or inside a

if(FMLCommonHandler.instance().getEffectiveSide == Side.CLIENT)

statement to stop your mod crashing on servers.

 

Hope I helped!

Romejanic