#3 Slot stuff barely works. Agonizing pain.

src/client/java/jesse/keeblarcraft/gui/Generics/ClickableLayer.java

@@ -3,6 +3,7 @@ package jesse.keeblarcraft.gui.Generics;
 import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.screen.narration.NarrationMessageBuilder;
 import net.minecraft.client.gui.widget.ClickableWidget;
+import net.minecraft.screen.slot.Slot;
 import net.minecraft.text.Text;
 import net.minecraft.util.Identifier;
 

src/client/java/jesse/keeblarcraft/gui/ShopKeeperGUI/NewItemButton.java

@@ -1,6 +1,5 @@
 package jesse.keeblarcraft.gui.ShopKeeperGUI;
 
-import jesse.keeblarcraft.ClientHelpers.Helper;
 import jesse.keeblarcraft.Keeblarcraft;
 import jesse.keeblarcraft.gui.Generics.ClickableLayer;
 import net.minecraft.client.gui.screen.narration.NarrationMessageBuilder;

src/client/java/jesse/keeblarcraft/gui/ShopKeeperGUI/ShopKeeperMenu.java

@@ -3,6 +3,7 @@ package jesse.keeblarcraft.gui.ShopKeeperGUI;
 import jesse.keeblarcraft.GuiMgr.ShopKeeperHandler;
 import jesse.keeblarcraft.Keeblarcraft;
 import jesse.keeblarcraft.ClientHelpers.Helper;
+import jesse.keeblarcraft.Utils.CustomSlot;
 import jesse.keeblarcraft.gui.Generics.ClickableLayer;
 import net.minecraft.client.gui.DrawContext;
 import net.minecraft.client.gui.screen.ingame.HandledScreen;
@@ -12,7 +13,6 @@ import net.minecraft.util.Identifier;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 
 public class ShopKeeperMenu extends HandledScreen<ShopKeeperHandler> {
     private static final Identifier MENU_TEXTURE = new Identifier(Keeblarcraft.MOD_ID, "textures/gui/shopkeeper_gui.jpeg");
@@ -50,6 +50,8 @@ public class ShopKeeperMenu extends HandledScreen<ShopKeeperHandler> {
 //        context.drawTexture(NEW_ITEM_MENU, this.x, this.y, 0, 0, 32, 24);
 //        context.drawTexture(NEW_ITEM_MENU, this.x, this.y, 0, 0, 32, 24, 32, 24);
 
+//        this.getScreenHandler().ShowSlot(Text.of("test"));
+
         for (ClickableLayer layer : layers) {
             layer.renderButton(context, mouseX, mouseY, delta);
 

src/main/java/jesse/keeblarcraft/GuiMgr/FactionBlockScreenHandler.java

@@ -11,7 +11,6 @@ import net.minecraft.screen.ArrayPropertyDelegate;
 import net.minecraft.screen.PropertyDelegate;
 import net.minecraft.screen.ScreenHandler;
 import net.minecraft.screen.slot.Slot;
-import org.jetbrains.annotations.Nullable;
 
 public class FactionBlockScreenHandler extends ScreenHandler {
     private final Inventory inventory;
@@ -96,11 +95,10 @@ public class FactionBlockScreenHandler extends ScreenHandler {
     private void addPlayerHotbar(PlayerInventory playerInventory) {
         int spacing = -8;
         for (int i = 0; i < 9; ++i) {
-            int index = i; // Index of hotbar (only 9 slots long in vanilla)
             // int x = (8 + i * 18) + spacing; // Texture draw position
             int x = i * 22 + spacing; // Texture draw position
             int y = 162; // Texture draw position
-            this.addSlot(new Slot(playerInventory, index, x, y));
+            this.addSlot(new Slot(playerInventory, i, x, y));
         }
     }
 

src/main/java/jesse/keeblarcraft/GuiMgr/ShopKeeperHandler.java

@@ -1,14 +1,20 @@
 package jesse.keeblarcraft.GuiMgr;
 
+import jesse.keeblarcraft.Utils.CustomSlot;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.screen.ScreenHandler;
+import net.minecraft.screen.slot.Slot;
+import net.minecraft.text.Text;
 import net.minecraft.village.Merchant;
 import net.minecraft.village.MerchantInventory;
 import net.minecraft.village.SimpleMerchant;
 import net.minecraft.village.TradeOfferList;
 
+import java.util.HashMap;
+import java.util.Map;
+
 public class ShopKeeperHandler extends ScreenHandler {
     private Merchant merchant;
     private MerchantInventory merchantInventory;
@@ -16,6 +22,7 @@ public class ShopKeeperHandler extends ScreenHandler {
     boolean isLeveledMerchant = false;
     int levelAmount = 0;
     int merchantExperience = 0;
+    Map<Text, Integer> slotIdByName = new HashMap<>();
 
     public ShopKeeperHandler(int syncId, PlayerInventory playerInventory) {
         this(syncId, playerInventory, new SimpleMerchant(playerInventory.player));
@@ -26,6 +33,36 @@ public class ShopKeeperHandler extends ScreenHandler {
         this.merchant = merchant;
         this.merchantInventory = new MerchantInventory(merchant);
         // Add slots below
+//        this.addSlot(new Slot(this.merchantInventory, 0, 136, 37));
+        this.addSlot(new CustomSlot(this.merchantInventory, 0, Text.of("test"), 136, 37), Text.of("test"));
+    }
+
+    public void HideSlot(Text slotName) {
+        this.getSlot(Text.of("test")).setEnabled(false);
+    }
+
+    public void ShowSlot(Text slotName) {
+        this.getSlot(Text.of("test")).setEnabled(true);
+    }
+
+    protected void addSlot(CustomSlot slot, Text name) {
+        super.addSlot(slot);
+        slotIdByName.put(name, slot.id);
+    }
+
+    public CustomSlot getSlot(Text name) {
+
+        System.out.println("Printing slot map");
+        for (Slot slot : super.slots) {
+            System.out.println("Found slot with id: " + slot.id);
+        }
+
+        System.out.println("Printing self stored map");
+        for (Map.Entry<Text, Integer> entry : this.slotIdByName.entrySet()) {
+            System.out.println("entry set id value: " + "K: " + entry.getKey() + " -> V: " + entry.getValue());
+        }
+
+        return (CustomSlot) super.getSlot(slotIdByName.get(name));
     }
 
     public void SetOffers(TradeOfferList offers) {
@@ -56,7 +93,6 @@ public class ShopKeeperHandler extends ScreenHandler {
     // Called every tick
     @Override
     public boolean canUse(PlayerEntity player) {
-//        System.out.println("canUse called on Merchant!");
         return true;
     }
 }

src/main/java/jesse/keeblarcraft/Utils/CustomSlot.java

@@ -0,0 +1,27 @@
+package jesse.keeblarcraft.Utils;
+
+import net.minecraft.inventory.Inventory;
+import net.minecraft.screen.slot.Slot;
+import net.minecraft.text.Text;
+
+public class CustomSlot extends Slot {
+    private boolean slotIsEnabled = false;
+    private Text slotId;
+
+    public CustomSlot(Inventory inventory, int index, Text slotName, int x, int y) {
+        super(inventory, index, x, y);
+    }
+
+    public CustomSlot(Inventory inventory, int index, int x, int y) {
+        super(inventory, index, x, y);
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return slotIsEnabled;
+    }
+
+    public void setEnabled(boolean value) {
+        this.slotIsEnabled = value;
+    }
+}