Added a GUI via an item you can get it via /seed gui

src/main/java/kaptainwutax/seedcracker/SeedCracker.java

@@ -2,18 +2,25 @@ package kaptainwutax.seedcracker;
 
 import kaptainwutax.seedcracker.cracker.storage.DataStorage;
 import kaptainwutax.seedcracker.finder.FinderQueue;
+import kaptainwutax.seedcracker.gui.GuiItem;
 import kaptainwutax.seedcracker.render.RenderQueue;
 import net.fabricmc.api.ModInitializer;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemGroup;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.Rarity;
+import net.minecraft.util.registry.Registry;
 
 public class SeedCracker implements ModInitializer {
 
     private static final SeedCracker INSTANCE = new SeedCracker();
     private DataStorage dataStorage = new DataStorage();
-
+	public static Item GUI_ITEM=new GuiItem(new Item.Settings().group(ItemGroup.MISC).rarity(Rarity.EPIC));
 	@Override
 	public void onInitialize() {
 		RenderQueue.get().add("hand", FinderQueue.get()::renderFinders);
 
+		Registry.register(Registry.ITEM,new Identifier("seedcracker","gui_item"),GUI_ITEM);
 		/*
 		long ss = 5718603440394L;
 		LCG lcg = Rand.JAVA_LCG.combine(-5);

src/main/java/kaptainwutax/seedcracker/command/GuiCommand.java

@@ -0,0 +1,42 @@
+package kaptainwutax.seedcracker.command;
+
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
+import kaptainwutax.seedcracker.finder.Finder;
+import kaptainwutax.seedcracker.finder.FinderQueue;
+import net.minecraft.client.network.ClientPlayerEntity;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.server.command.ServerCommandSource;
+import net.minecraft.text.TranslatableText;
+import net.minecraft.util.Formatting;
+
+import static kaptainwutax.seedcracker.SeedCracker.GUI_ITEM;
+import static net.minecraft.server.command.CommandManager.literal;
+
+public class GuiCommand extends ClientCommand {
+
+    @Override
+    public String getName() {
+        return "gui";
+    }
+
+    @Override
+    public void build(LiteralArgumentBuilder<ServerCommandSource> builder) {
+        builder.executes(ctx->
+        {
+            ServerCommandSource source = ctx.getSource();
+
+            ClientPlayerEntity self =(ClientPlayerEntity) source.getEntity();
+            assert self != null;
+            if(!self.inventory.insertStack(new ItemStack(GUI_ITEM))){
+                throw new SimpleCommandExceptionType(new TranslatableText("inventory.isfull")).create();
+            }
+            return 1;
+        });
+    }
+
+
+
+}

src/main/java/kaptainwutax/seedcracker/gui/Gui.java

@@ -0,0 +1,37 @@
+package kaptainwutax.seedcracker.gui;
+
+import io.github.cottonmc.cotton.gui.client.BackgroundPainter;
+import io.github.cottonmc.cotton.gui.client.LightweightGuiDescription;
+import io.github.cottonmc.cotton.gui.widget.WButton;
+import io.github.cottonmc.cotton.gui.widget.WGridPanel;
+import io.github.cottonmc.cotton.gui.widget.WLabel;
+import io.github.cottonmc.cotton.gui.widget.WSprite;
+import net.minecraft.text.LiteralText;
+import net.minecraft.text.TranslatableText;
+import net.minecraft.util.Identifier;
+
+public class Gui extends LightweightGuiDescription {
+    public Gui() {
+        WGridPanel root = new WGridPanel();
+        setRootPanel(root);
+        root.setSize(256, 240);
+
+        WSprite icon = new WSprite(new Identifier("minecraft:textures/item/redstone.png"));
+        root.add(icon, 0, 2, 1, 1);
+
+        WButton button = new WButton(new TranslatableText("gui.examplemod.examplebutton"));
+        root.add(button, 0, 3, 4, 1);
+
+        WLabel label = new WLabel(new LiteralText("Test"), 0xFFFFFF);
+        root.add(label, 0, 4, 2, 1);
+
+        root.validate(this);
+    }
+
+
+
+    @Override
+    public void addPainters() {
+        getRootPanel().setBackgroundPainter(BackgroundPainter.VANILLA); //This is done automatically though
+    }
+}

src/main/java/kaptainwutax/seedcracker/gui/GuiItem.java

@@ -0,0 +1,22 @@
+package kaptainwutax.seedcracker.gui;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Hand;
+import net.minecraft.util.TypedActionResult;
+import net.minecraft.world.World;
+
+public class GuiItem extends Item {
+
+    public GuiItem(Settings settings) {
+        super(settings);
+    }
+
+    @Override
+    public TypedActionResult<ItemStack> use(World world, PlayerEntity user, Hand hand) {
+        MinecraftClient.getInstance().openScreen(new Screen(new Gui()));
+        return super.use(world, user, hand);
+    }
+}

src/main/java/kaptainwutax/seedcracker/gui/GuiScreen.java

@@ -1,22 +0,0 @@
-package kaptainwutax.seedcracker.gui;
-
-import net.minecraft.client.gui.screen.Screen;
-import net.minecraft.text.LiteralText;
-
-public class GuiScreen extends Screen {
-
-	public GuiScreen(String name) {
-		super(new LiteralText(name));
-	}
-
-	@Override
-	public void render(int mouseX, int mouseY, float partialTicks) {
-		this.renderBackground();
-	}
-
-	@Override
-	public boolean isPauseScreen() {
-		return false;
-	}
-
-}

src/main/java/kaptainwutax/seedcracker/gui/Screen.java

@@ -0,0 +1,11 @@
+package kaptainwutax.seedcracker.gui;
+
+import io.github.cottonmc.cotton.gui.GuiDescription;
+import io.github.cottonmc.cotton.gui.client.CottonClientScreen;
+
+public class Screen extends CottonClientScreen {
+    public Screen(GuiDescription description) {
+        super(description);
+    }
+
+}

src/main/java/kaptainwutax/seedcracker/init/ClientCommands.java

@@ -5,6 +5,7 @@ import com.mojang.brigadier.StringReader;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import kaptainwutax.seedcracker.command.ClientCommand;
 import kaptainwutax.seedcracker.command.FinderCommand;
+import kaptainwutax.seedcracker.command.GuiCommand;
 import kaptainwutax.seedcracker.command.RenderCommand;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.network.ClientPlayerEntity;
@@ -23,10 +24,12 @@ public class ClientCommands {
 
     public static RenderCommand RENDER;
     public static FinderCommand FINDER;
+    public static GuiCommand GUI;
 
     static {
         COMMANDS.add(RENDER = new RenderCommand());
         COMMANDS.add(FINDER = new FinderCommand());
+        COMMANDS.add(GUI = new GuiCommand());
     }
 
     public static void registerCommands(CommandDispatcher<ServerCommandSource> dispatcher) {

src/main/java/kaptainwutax/seedcracker/mixin/ClientPlayerEntityMixin.java

@@ -2,10 +2,7 @@ package kaptainwutax.seedcracker.mixin;
 
 import com.mojang.brigadier.StringReader;
 import kaptainwutax.seedcracker.SeedCracker;
-import kaptainwutax.seedcracker.gui.GuiScreen;
 import kaptainwutax.seedcracker.init.ClientCommands;
-import kaptainwutax.seedcracker.init.KeyBindings;
-import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.network.ClientPlayerEntity;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
@@ -20,10 +17,6 @@ public abstract class ClientPlayerEntityMixin {
     @Inject(method = "tick", at = @At("HEAD"))
     private void tick(CallbackInfo ci) {
         SeedCracker.get().getDataStorage().tick();
-
-        if(MinecraftClient.getInstance().currentScreen == null && KeyBindings.OPEN_MENU.isPressed()) {
-            MinecraftClient.getInstance().openScreen(new GuiScreen("Test"));
-        }
     }
 
     @Inject(method = "sendChatMessage", at = @At("HEAD"), cancellable = true)