tweaked things

src/main/java/net/backslot/BackSlotMain.java

@@ -30,4 +30,6 @@ public void onInitialize() {
         BackSlotServerPacket.init();
     }
 
+
+
 }

src/main/java/net/backslot/mixin/EntityMixin.java → src/main/java/net/backslot/mixin/LivingEntityMixin.java

@@ -10,14 +10,15 @@
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 import net.minecraft.entity.Entity;
+import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.ItemStack;
 
-@Mixin(Entity.class)
-public class EntityMixin {
+@Mixin(LivingEntity.class)
+public class LivingEntityMixin {
 
-    @Inject(method = "getItemsEquipped", at = @At("RETURN"), cancellable = true)
-    private void getItemsEquippedMixin(CallbackInfoReturnable<Iterable<ItemStack>> info) {
+    @Inject(method = "getEquippedItems", at = @At("RETURN"), cancellable = true)
+    private void getEquippedItemsMixin(CallbackInfoReturnable<Iterable<ItemStack>> info) {
         if ((Entity) (Object) this instanceof PlayerEntity playerEntity) {
             ItemStack backSlotStack = playerEntity.getInventory().getStack(41);
             ItemStack beltSlotStack = playerEntity.getInventory().getStack(42);

src/main/java/net/backslot/mixin/PlayerInventoryMixin.java

@@ -22,7 +22,7 @@
 import net.minecraft.nbt.NbtList;
 import net.minecraft.util.collection.DefaultedList;
 
-@Mixin(PlayerInventory.class)
+@Mixin(value = PlayerInventory.class, priority = 999)
 public abstract class PlayerInventoryMixin implements Inventory {
     @Shadow
     @Final
@@ -52,7 +52,7 @@ public PlayerInventoryMixin(PlayerEntity player) {
     }
 
     @Inject(method = "<init>*", at = @At("RETURN"))
-    private void onConstructed(PlayerEntity playerEntity, CallbackInfo info) {
+    private void initMixin(PlayerEntity playerEntity, CallbackInfo info) {
         this.backSlot = DefaultedList.ofSize(1, ItemStack.EMPTY);
         this.beltSlot = DefaultedList.ofSize(1, ItemStack.EMPTY);
         this.combinedInventory = new ArrayList<>(combinedInventory);
@@ -62,7 +62,7 @@ private void onConstructed(PlayerEntity playerEntity, CallbackInfo info) {
     }
 
     @Inject(method = "writeNbt", at = @At("TAIL"))
-    public void serializeMixin(NbtList tag, CallbackInfoReturnable<NbtList> info) {
+    public void writeNbtMixin(NbtList tag, CallbackInfoReturnable<NbtList> info) {
         if (!this.backSlot.get(0).isEmpty()) {
             NbtCompound compoundTag = new NbtCompound();
             compoundTag.putByte("Slot", (byte) (110));
@@ -77,7 +77,7 @@ public void serializeMixin(NbtList tag, CallbackInfoReturnable<NbtList> info) {
     }
 
     @Inject(method = "readNbt", at = @At("TAIL"))
-    public void deserializeMixin(NbtList tag, CallbackInfo info) {
+    public void readNbtMixin(NbtList tag, CallbackInfo info) {
         this.backSlot.clear();
         this.beltSlot.clear();
         for (int i = 0; i < tag.size(); ++i) {
@@ -94,16 +94,12 @@ public void deserializeMixin(NbtList tag, CallbackInfo info) {
         }
     }
 
-    @Inject(method = "size", at = @At("HEAD"), cancellable = true)
+    @Inject(method = "size", at = @At("RETURN"), cancellable = true)
     public void sizeMixin(CallbackInfoReturnable<Integer> info) {
-        int size = 0;
-        for (DefaultedList<ItemStack> list : combinedInventory) {
-            size += list.size();
-        }
-        info.setReturnValue(size);
+        info.setReturnValue(info.getReturnValue() + 2);
     }
 
-    @Inject(method = "isEmpty", at = @At("HEAD"), cancellable = true)
+    @Inject(method = "isEmpty", at = @At("TAIL"), cancellable = true)
     public void isEmptyMixin(CallbackInfoReturnable<Boolean> info) {
         if (!this.backSlot.isEmpty() || !this.beltSlot.isEmpty()) {
             info.setReturnValue(false);

src/main/java/net/backslot/mixin/PlayerScreenHandlerMixin.java

@@ -24,7 +24,7 @@
 import net.fabricmc.api.EnvType;
 import net.minecraft.enchantment.EnchantmentHelper;
 
-@Mixin(PlayerScreenHandler.class)
+@Mixin(value = PlayerScreenHandler.class, priority = 999)
 public abstract class PlayerScreenHandlerMixin extends AbstractRecipeScreenHandler<CraftingInventory> {
     private static boolean changeArrangement = BackSlotMain.CONFIG.changeSlotArrangement;
 
@@ -33,13 +33,14 @@ public PlayerScreenHandlerMixin(ScreenHandlerType<PlayerScreenHandler> screenHan
     }
 
     // Tried different injection points to fix a mod compatibility bug but it didnt work
-    @Inject(method = "<init>*", at = @At("TAIL"))
+    @Inject(method = "<init>*", at = @At("RETURN"))
     private void onConstructed(PlayerInventory inventory, boolean onServer, PlayerEntity owner, CallbackInfo info) {
         int backSlotX = BackSlotMain.CONFIG.backSlotX;
         int backSlotY = BackSlotMain.CONFIG.backSlotY;
 
         int beltSlotX = BackSlotMain.CONFIG.beltSlotX;
         int beltSlotY = BackSlotMain.CONFIG.beltSlotY;
+
         if (changeArrangement) {
             backSlotX += 75;
             backSlotY += 22;

src/main/java/net/backslot/mixin/client/CreativeInventoryScreenMixin.java

@@ -19,7 +19,6 @@ public abstract class CreativeInventoryScreenMixin extends AbstractInventoryScre
 
     public CreativeInventoryScreenMixin(PlayerEntity player) {
         super(new CreativeInventoryScreen.CreativeScreenHandler(player), player.getInventory(), ScreenTexts.EMPTY);
-        player.currentScreenHandler = this.handler;
     }
 
     @Inject(method = "setSelectedTab", at = @At(value = "FIELD", target = "Lnet/minecraft/client/gui/screen/ingame/CreativeInventoryScreen;deleteItemSlot:Lnet/minecraft/screen/slot/Slot;", shift = At.Shift.BEFORE))

src/main/resources/backslot.mixins.json

@@ -8,7 +8,7 @@
     "PlayerInventoryMixin",
     "PlayerScreenHandlerMixin",
     "ServerPlayerEntityMixin",
-    "EntityMixin",
+    "LivingEntityMixin",
     "EntityTrackerEntryMixin",
     "ExperienceOrbEntityMixin",
     "compat.OnDeathItemDropCompatibility"