fix: emptyShulkerBoxStack

src/main/java/com/github/zly2006/carpetslsaddition/mixin/shulker/MixinItemStack.java

@@ -0,0 +1,23 @@
+package com.github.zly2006.carpetslsaddition.mixin.shulker;
+
+import com.github.zly2006.carpetslsaddition.SLSCarpetSettings;
+import com.github.zly2006.carpetslsaddition.util.ShulkerBoxItemUtil;
+import net.minecraft.item.ItemStack;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(ItemStack.class)
+public class MixinItemStack {
+    @Inject(
+            method = "getMaxCount",
+            at = @At("HEAD"),
+            cancellable = true
+    )
+    private void getMaxCount(CallbackInfoReturnable<Integer> cir) {
+        if (SLSCarpetSettings.emptyShulkerBoxStack && ShulkerBoxItemUtil.isEmptyShulkerBoxItem((ItemStack) (Object) this)) {
+            cir.setReturnValue(ShulkerBoxItemUtil.SHULKERBOX_MAX_STACK_AMOUNT);
+        }
+    }
+}

src/main/java/com/github/zly2006/carpetslsaddition/mixin/shulker/MixinScreenHandler.java

@@ -0,0 +1,26 @@
+package com.github.zly2006.carpetslsaddition.mixin.shulker;
+
+import com.github.zly2006.carpetslsaddition.util.ShulkerBoxItemUtil;
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
+import net.minecraft.item.ItemStack;
+import net.minecraft.screen.ScreenHandler;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+@Mixin(ScreenHandler.class)
+public abstract class MixinScreenHandler {
+    @WrapOperation(
+            method = "internalOnSlotClick",
+            at = @At(
+                    value = "INVOKE",
+                    target = "Lnet/minecraft/item/ItemStack;areItemsAndComponentsEqual(Lnet/minecraft/item/ItemStack;Lnet/minecraft/item/ItemStack;)Z"
+            )
+    )
+    private boolean checkEqual(ItemStack stack, ItemStack otherStack, Operation<Boolean> original) {
+        if (ShulkerBoxItemUtil.shulkerBoxEqual(stack, otherStack)) {
+            return true;
+        }
+        return original.call(stack, otherStack);
+    }
+}

src/main/java/com/github/zly2006/carpetslsaddition/mixin/shulker/MixinSlot.java

@@ -0,0 +1,33 @@
+package com.github.zly2006.carpetslsaddition.mixin.shulker;
+
+import com.github.zly2006.carpetslsaddition.SLSCarpetSettings;
+import com.github.zly2006.carpetslsaddition.util.ShulkerBoxItemUtil;
+import me.fallenbreath.conditionalmixin.api.annotation.Condition;
+import me.fallenbreath.conditionalmixin.api.annotation.Restriction;
+import net.minecraft.item.ItemStack;
+import net.minecraft.screen.slot.Slot;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Restriction(
+        conflict = @Condition("pca")
+)
+@Mixin(Slot.class)
+public class MixinSlot {
+    @Redirect(
+            method = "getMaxItemCount(Lnet/minecraft/item/ItemStack;)I",
+            at = @At(
+                    value = "INVOKE",
+                    target = "Lnet/minecraft/item/ItemStack;getMaxCount()I",
+                    ordinal = 0
+            )
+    )
+    private int getMaxItemCount(ItemStack itemStack) {
+        if (SLSCarpetSettings.emptyShulkerBoxStack && ShulkerBoxItemUtil.isEmptyShulkerBoxItem(itemStack)) {
+            return ShulkerBoxItemUtil.SHULKERBOX_MAX_STACK_AMOUNT;
+        } else {
+            return itemStack.getMaxCount();
+        }
+    }
+}