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[1.8] Dynamic textures with NBT

JoieNL

By JoieNL
in Modder Support

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JoieNL Tree Puncher

JoieNL

Posted
Posted (edited)

Lately, I've been stuck trying to give certain 'energy' tools a different texture, depending on whether the player is holding the tool or not. The tools should how up in an 'active' state when held, and in a 'dormant' state otherwise. The code for the switching of states work jut fine, but I cannot figure out how to change the texture depending on the state. Either changing the texture altogether or adding a second layer onto an existing texture works for me. Thanks in advance!
Here is all the (potentially) relevant code:

 

Spoiler 

package items;


import net.minecraft.entity.Entity;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.world.World;


public class ItemModEnergyAxe extends ItemModAxe {

    ItemModEnergyAxe(String unlocalizedName, ToolMaterial material) {
        super(unlocalizedName, material);
    }

    ItemModEnergyAxe(String unlocalizedName, ToolMaterial material, String[] toolTip) {
        super(unlocalizedName, material, toolTip);
    }

    public String getUnlocalizedName(ItemStack stack) {
        if (stack.hasTagCompound()) {
            return "item.energy_axe_" + stack.getTagCompound().getString("state");
        }
        return "item.energy_axe_dormant";
    }

    public void onUpdate(ItemStack stack, World worldIn, Entity entityIn, int itemSlot, boolean isSelected) {
        if (stack.getTagCompound() == null) {
            stack.setTagCompound(new NBTTagCompound());
        }
        stack.getTagCompound().setString("state", isSelected ? "active" : "dormant");
    }
}

 

 

Spoiler 

package items;


import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemAxe;
import net.minecraft.item.ItemStack;

import java.lang.reflect.Array;
import java.util.List;


class ItemModAxe extends ItemAxe {

    private final String[] toolTip;

    ItemModAxe(String unlocalizedName, ToolMaterial material, String[] toolTip) {
        super(material);
        this.setUnlocalizedName(unlocalizedName);
        this.toolTip = toolTip;
    }

    ItemModAxe(String unlocalizedName, ToolMaterial material) {
        super(material);
        this.setUnlocalizedName(unlocalizedName);
        this.toolTip = null;
    }

    public void addInformation(ItemStack stack, EntityPlayer playerIn, List<String> tooltip, boolean advanced) {
        if (toolTip != null) {
            for (int i = 0; i < Array.getLength(toolTip); i++) {
                tooltip.add("§5§o" + Array.get(toolTip, i));
            }
        }
    }
}

 

 

Spoiler 

package items;


import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.EnumAction;
import net.minecraft.item.Item;
import net.minecraft.item.Item.ToolMaterial;
import net.minecraft.item.ItemArmor.ArmorMaterial;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraftforge.common.util.EnumHelper;
import net.minecraftforge.fml.common.registry.GameRegistry;


public final class ModItems {
  	
	//Other stuff
    public static Item energyPickaxe;
    public static Item energyAxe;
    public static Item energySpade;
    public static Item energyHoe;
    public static Item energySword;
    public static Item energyShears;
	//Other stuff
  	
	public static void createItems() {
      	//Other stuff
        GameRegistry.registerItem(energyPickaxe = new ItemModEnergyPickaxe("energy_pickaxe", energy), "energy_pickaxe");
        GameRegistry.registerItem(energyAxe = new ItemModEnergyAxe("energy_axe", energy), "energy_axe");
        GameRegistry.registerItem(energySpade = new ItemModEnergySpade("energy_spade", energy), "energy_spade");
        GameRegistry.registerItem(energyHoe = new ItemModEnergyHoe("energy_hoe", energy), "energy_hoe");
        GameRegistry.registerItem(energySword = new ItemModEnergySword("energy_sword", energy), "energy_sword");
        GameRegistry.registerItem(energyShears = new ItemModEnergyShears("energy_shears", 999), "energy_shears");
      	//Other stuff
	}
  	
  	//Other sstuff
    private static final ToolMaterial energy = EnumHelper.addToolMaterial("energy", 8, 199, 20.0F, 15.0F, 75);
}

 

 

Spoiler 

package joienl.elementalmadness.client.render.items;


import items.ModItems;
import joienl.elementalmadness.ElementalMadness;
import net.minecraft.client.Minecraft;
import net.minecraft.client.resources.model.ModelResourceLocation;
import net.minecraft.item.Item;


public final class ItemRenderRegister {

	public static void registerItemRenderer() {
      	//Other stuff
        reg(ModItems.energyAxe);
        reg(ModItems.energyPickaxe);
        reg(ModItems.energySpade);
        reg(ModItems.energyHoe);
        reg(ModItems.energySword);
        reg(ModItems.energyShears);
      	//Other stuff
     }

    private static void reg(Item item) {
        Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, 0, new ModelResourceLocation(ElementalMadness.MODID + ":" + item.getUnlocalizedName().substring(5), "inventory"));
	}
}

 

 

 

Spoiler 

package joienl.elementalmadness;


import joienl.elementalmadness.client.model.ModelCobaltKobold;
import joienl.elementalmadness.client.render.blocks.BlockRenderRegister;
import joienl.elementalmadness.client.render.entity.EntityRenderRegister;
import joienl.elementalmadness.client.render.entity.RenderCobaltKobold;
import joienl.elementalmadness.client.render.items.ItemRenderRegister;
import joienl.elementalmadness.entity.EntityCobaltKobold;
import net.minecraft.client.Minecraft;
import net.minecraftforge.fml.client.registry.RenderingRegistry;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;


@SuppressWarnings("unused")
public class ClientProxy extends CommonProxy {

    @Override
    public void preInit(FMLPreInitializationEvent e) {
        super.preInit(e);
    }

    @Override
    @SuppressWarnings({"deprecation", "unchecked"})
    public void init(FMLInitializationEvent e) {
        super.init(e);
        BlockRenderRegister.registerBlockRenderer();
        BlockRenderRegister.preInit();
        ItemRenderRegister.registerItemRenderer();
        EntityRenderRegister.registerEntityRenderer();

        RenderingRegistry.registerEntityRenderingHandler(EntityCobaltKobold.class, new RenderCobaltKobold(Minecraft.getMinecraft().getRenderManager(), new ModelCobaltKobold()));
    }

    @Override
    public void postInit(FMLPostInitializationEvent e) {
        super.postInit(e);
    }
}

 

Spoiler 

package joienl.elementalmadness;


import blocks.ModBlocks;
import items.ModItems;
import joienl.elementalmadness.crafting.ModCrafting;

import joienl.elementalmadness.event.ModItemCraftedEvent;
import joienl.elementalmadness.event.ModItemSmeltedEvent;
import joienl.elementalmadness.event.ModPlayerTickEvent;
import joienl.elementalmadness.network.ModGuiHandler;
import joienl.elementalmadness.world.WorldGen;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.registry.GameRegistry;


class CommonProxy {

    public void preInit(FMLPreInitializationEvent e) {
        ModBlocks.createBlocks();
    	ModItems.createItems();
        ModBlocks.init();
    }

    public void init(FMLInitializationEvent e) {
        ModCrafting.initCrafting();
        GameRegistry.registerWorldGenerator(new WorldGen(), 0);
        NetworkRegistry.INSTANCE.registerGuiHandler(ElementalMadness.instance, new ModGuiHandler());
        MinecraftForge.EVENT_BUS.register(new ModPlayerTickEvent());
        MinecraftForge.EVENT_BUS.register(new ModItemSmeltedEvent());
        MinecraftForge.EVENT_BUS.register(new ModItemCraftedEvent());
        AchievementRegistry.registerAchievements();
    }

    public void postInit(FMLPostInitializationEvent e) {}
}

 

 

Edited by JoieNL
Misplaced some spoilers
TheMasterGabriel Creeper Killer

TheMasterGabriel

Posted
Posted (edited)

You can probably use an IItemPropertyGetter, which can be used to change item models based on certain criteria. They are used by bows to change the texture depending on how long you have been holding down right click, for example. You can see how to use them in ItemBow and its associated json files.

 

Edit: Also this post if you want another example.

Edited by TheMasterGabriel
Draco18s Reality Controller

Draco18s

Posted
Posted

Alternatively,

https://github.com/Draco18s/ReasonableRealism/blob/master/src/main/java/com/draco18s/industry/item/ItemCastingMold.java#L80

https://github.com/Draco18s/ReasonableRealism/blob/master/src/main/java/com/draco18s/hardlib/client/ClientEasyRegistry.java#L103-L109

 

Rather a bit more complicated, but very flexible.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

JoieNL Tree Puncher

JoieNL

Posted
  • Author
Posted
On ‎02‎/‎04‎/‎2017 at 7:26 PM, TheMasterGabriel said:

You can probably use an IItemPropertyGetter, which can be used to change item models based on certain criteria. They are used by bows to change the texture depending on how long you have been holding down right click, for example. You can see how to use them in ItemBow and its associated json files.

 

Edit: Also this post if you want another example.

I've looked around a bit, and I believe IItemPropertyGetter is a 1.9+ interface. Could you point me to the exact location of the interface so I can doublecheck?

 

On ‎03‎/‎04‎/‎2017 at 2:44 AM, Draco18s said:

Alternatively,

https://github.com/Draco18s/ReasonableRealism/blob/master/src/main/java/com/draco18s/industry/item/ItemCastingMold.java#L80

https://github.com/Draco18s/ReasonableRealism/blob/master/src/main/java/com/draco18s/hardlib/client/ClientEasyRegistry.java#L103-L109

 

Rather a bit more complicated, but very flexible.

I notice you are using libraries I do not have. I haven't much experience with using libraries myself, but I'm not sure this helps out.

 

Still, I thank you both for the quick replies.

Draco18s Reality Controller

Draco18s

Posted
Posted (edited)

All the libraries I use are my own.  They're in the same repository.

 

In fact, my second link is in said library.  It shows how I use the interface I created in order to let the Item class dictate how it should handle its own NBT data for rendering, rather than having it externally.  It's not any different than vanilla's IItemPropertyGetter, really.  The only difference is that IItemPropertyGetter can only handle one type: floats.

Edited by Draco18s

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

larsgerrits Reality Controller

larsgerrits

Posted
Posted
1 hour ago, JoieNL said:

I've looked around a bit, and I believe IItemPropertyGetter is a 1.9+ interface. Could you point me to the exact location of the interface so I can doublecheck?

 

net.minecraft.item.IItemPropertyGetter. But this shouldn't be an issue to find, as you should be using 1.9+ already.

Don't PM me with questions. They will be ignored! Make a thread on the appropriate board for support.

 

1.12 -> 1.13 primer by williewillus.

 

1.7.10 and older versions of Minecraft are no longer supported due to it's age! Update to the latest version for support.

 

http://www.howoldisminecraft1710.today/

JoieNL Tree Puncher

JoieNL

Posted
  • Author
Posted

First of all, please excuse my recent absence. I've been quite busy lately.

 

On ‎06‎/‎04‎/‎2017 at 7:06 PM, Draco18s said:

All the libraries I use are my own.  They're in the same repository.

 

In fact, my second link is in said library.  It shows how I use the interface I created in order to let the Item class dictate how it should handle its own NBT data for rendering, rather than having it externally.  It's not any different than vanilla's IItemPropertyGetter, really.  The only difference is that IItemPropertyGetter can only handle one type: floats.

What I mean is that you are referencing some other classes and interfaces in your code (most notably IItemWithMeshDefinition and EasyRegistry) in your libraries. I cannot trace the data flow of your code so I can figure out what to do myself without these files (or I'm just being stupid, hell if I know).

 

On ‎06‎/‎04‎/‎2017 at 7:57 PM, larsgerrits said:

net.minecraft.item.IItemPropertyGetter. But this shouldn't be an issue to find, as you should be using 1.9+ already.

Well, the title of this thread does say "[1.8]". That is, I'm modding in Minecraft version 1.8...

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