merge iih + mt hand command in one

src/main/java/com/gtnewhorizon/gtnhlib/ClientProxy.java

@@ -6,8 +6,10 @@
 import net.minecraft.util.ChatComponentText;
 import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.IChatComponent;
+import net.minecraftforge.client.ClientCommandHandler;
 
 import com.gtnewhorizon.gtnhlib.client.model.ModelLoader;
+import com.gtnewhorizon.gtnhlib.commands.ItemInHandCommand;
 import com.gtnewhorizon.gtnhlib.eventbus.EventBusSubscriber;
 import com.gtnewhorizon.gtnhlib.util.AboveHotbarHUD;
 
@@ -32,6 +34,7 @@ public void preInit(FMLPreInitializationEvent event) {
     @Override
     public void init(FMLInitializationEvent event) {
         super.init(event);
+        ClientCommandHandler.instance.registerCommand(new ItemInHandCommand());
     }
 
     @Override

src/main/java/com/gtnewhorizon/gtnhlib/commands/GTNHClientCommand.java

@@ -0,0 +1,34 @@
+package com.gtnewhorizon.gtnhlib.commands;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.command.CommandBase;
+import net.minecraft.command.ICommandSender;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.IChatComponent;
+
+public abstract class GTNHClientCommand extends CommandBase {
+
+    @Override
+    public boolean canCommandSenderUseCommand(ICommandSender sender) {
+        return true;
+    }
+
+    @Override
+    public String getCommandUsage(ICommandSender sender) {
+        return "/" + this.getCommandName();
+    }
+
+    protected void addChatMessage(String msg) {
+        addChatMessage(new ChatComponentText(msg));
+    }
+
+    protected void addChatMessage(IChatComponent msg) {
+        Minecraft.getMinecraft().ingameGUI.getChatGUI().printChatMessage(msg);
+    }
+
+    protected void copyToClipboard(String s) {
+        GuiScreen.setClipboardString(s);
+    }
+
+}

src/main/java/com/gtnewhorizon/gtnhlib/commands/ItemInHandCommand.java

@@ -0,0 +1,86 @@
+package com.gtnewhorizon.gtnhlib.commands;
+
+import static net.minecraft.util.EnumChatFormatting.*;
+
+import java.util.Collections;
+import java.util.List;
+
+import net.minecraft.client.entity.EntityClientPlayerMP;
+import net.minecraft.command.ICommandSender;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.fluids.FluidStack;
+import net.minecraftforge.fluids.IFluidContainerItem;
+import net.minecraftforge.oredict.OreDictionary;
+
+import cpw.mods.fml.common.registry.GameRegistry;
+
+public class ItemInHandCommand extends GTNHClientCommand {
+
+    @Override
+    public String getCommandName() {
+        return "iteminhand";
+    }
+
+    @Override
+    public List<String> getCommandAliases() {
+        return Collections.singletonList("iih");
+    }
+
+    @Override
+    public void processCommand(ICommandSender iCommandSender, String[] args) {
+        // spotless:off
+        if (iCommandSender instanceof EntityClientPlayerMP player) {
+            ItemStack itemStack = player.getCurrentEquippedItem();
+            if (itemStack == null) {
+                addChatMessage("Hand is empty!");
+                return;
+            }
+            GameRegistry.UniqueIdentifier UID = GameRegistry.findUniqueIdentifierFor(itemStack.getItem());
+            addChatMessage(GREEN.toString() + STRIKETHROUGH + "--------------------" + RESET + " Item info " + GREEN + STRIKETHROUGH + "--------------------");
+            addChatMessage(String.format(GREEN + "Unloc.Name:" + RESET + " [%s]", itemStack.getUnlocalizedName()));
+            if (UID != null) addChatMessage(String.format(GREEN + "ItemName:" + RESET + " [%s]", UID));
+            addChatMessage(String.format(GREEN + "ItemMeta:" + RESET + " [%s]", itemStack.getItemDamage()));
+            printFluidContent(itemStack);
+            addChatMessage(String.format(GREEN + "ClassName:" + RESET + " [%s]", itemStack.getItem().getClass()));
+            printMTHand(itemStack);
+            addChatMessage(GREEN.toString() + STRIKETHROUGH + "--------------------------------------------------");
+        }
+        // spotless:on
+    }
+
+    private void printFluidContent(ItemStack itemStack) {
+        if (itemStack.getItem() instanceof IFluidContainerItem tFluidContainer) {
+            FluidStack fluidStack = tFluidContainer.getFluid(itemStack);
+            if (fluidStack != null) {
+                String s = String.format(
+                        "FluidID: [%d], UnlocName: [%s], Name: [%s]",
+                        fluidStack.getFluid().getID(),
+                        fluidStack.getFluid().getUnlocalizedName(),
+                        fluidStack.getFluid().getName());
+                addChatMessage(String.format(GREEN + "FluidContainer:" + RESET + " [%s]", s));
+            }
+        }
+    }
+
+    private void printMTHand(ItemStack itemStack) {
+        StringBuilder result = new StringBuilder();
+        result.append('<');
+        result.append(Item.itemRegistry.getNameForObject(itemStack.getItem()));
+        if (itemStack.getItemDamage() == OreDictionary.WILDCARD_VALUE) {
+            result.append(":*");
+        } else if (itemStack.getItemDamage() > 0) {
+            result.append(':').append(itemStack.getItemDamage());
+        }
+        result.append('>');
+        if (itemStack.getTagCompound() != null) {
+            result.append(".withTag(");
+            result.append(itemStack.getTagCompound().toString());
+            result.append(")");
+        }
+        String msg = result.toString();
+        addChatMessage(GREEN + "mt hand: " + RESET + msg);
+        copyToClipboard(msg);
+    }
+
+}