feat: add dynamic tooltip info for backpacks

src/main/java/de/eydamos/backpack/item/ItemBackpackBase.java

@@ -136,7 +136,7 @@ public String getUnlocalizedName(ItemStack itemStack) {
         String name = super.getUnlocalizedName();
 
         int damage = itemStack.getItemDamage();
-        int tier = damage / 100 < 3 ? damage / 100 : 0;
+        int tier = BackpackUtil.getTier(itemStack);
         int meta = damage % 100;
         name += (tier == 0 ? "" : '.') + ItemsBackpack.BACKPACK_TIERS[tier];
         if (meta > 0 && meta < 17) { // add color
@@ -177,26 +177,46 @@ public void onCreated(ItemStack itemStack, World world, EntityPlayer entityPlaye
     @SideOnly(Side.CLIENT)
     public void addInformation(ItemStack itemStack, EntityPlayer entityPlayer, List information,
             boolean advancedTooltip) {
-        if (Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT)) {
-            if (itemStack.getItemDamage() != ItemsBackpack.ENDERBACKPACK) {
-                // TODO BackpackUtil.getTier()
-                information.add(
-                        EnumChatFormatting.YELLOW + StatCollector.translateToLocal(Localizations.TIER)
-                                + " "
-                                + (itemStack.getItemDamage() / 100 + 1));
+        int damage = itemStack.getItemDamage();
 
-                if (itemStack.stackTagCompound == null) return;
+        if (damage == ItemsBackpack.ENDERBACKPACK) {
+            information
+                    .add(EnumChatFormatting.AQUA + StatCollector.translateToLocal(Localizations.ENDER_BACKPACK_INFO));
+            return;
+        }
 
-                String uuid = itemStack.stackTagCompound.getString(Constants.NBT.UID);
-                if (uuid == null) return;
+        int tier = BackpackUtil.getTier(itemStack);
+        int meta = damage % 100;
 
-                BackpackUsageCache.BackpackSlotUsageInfo info = BackpackUsageCache.getBackpackInfo(uuid);
+        if (meta == 17) {
+            int craftSlots = tier == 0 ? 9 : 18;
+            information.add(
+                    EnumChatFormatting.AQUA
+                            + String.format(StatCollector.translateToLocal(Localizations.CRAFTING_SLOTS), craftSlots));
+            return;
+        }
+
+        int slots = 36 + tier * 27;
+        information.add(
+                EnumChatFormatting.AQUA
+                        + String.format(StatCollector.translateToLocal(Localizations.SLOTS_TOTAL), slots));
 
-                if (info != null) {
-                    String slotsText = StatCollector.translateToLocal(Localizations.SLOTS_USED);
-                    information.add(info.usedSlots + "/" + info.totalSlots + ' ' + slotsText);
-                } else {
-                    BackpackUsageCache.requestBackpackInfo(uuid);
+        if (Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT)) {
+            information.add(
+                    EnumChatFormatting.YELLOW + StatCollector.translateToLocal(Localizations.TIER) + " " + (tier + 1));
+            if (itemStack.stackTagCompound != null) {
+                String uuid = itemStack.stackTagCompound.getString(Constants.NBT.UID);
+                if (uuid != null) {
+                    BackpackUsageCache.BackpackSlotUsageInfo info = BackpackUsageCache.getBackpackInfo(uuid);
+                    if (info != null) {
+                        information.add(
+                                info.usedSlots + "/"
+                                        + info.totalSlots
+                                        + " "
+                                        + StatCollector.translateToLocal(Localizations.SLOTS_USED));
+                    } else {
+                        BackpackUsageCache.requestBackpackInfo(uuid);
+                    }
                 }
             }
         } else {

src/main/java/de/eydamos/backpack/misc/Localizations.java

@@ -30,4 +30,8 @@ public class Localizations {
 
     public static final String BUTTON_OK = "button.backpack.ok";
     public static final String BUTTON_CANCEL = "button.backpack.cancel";
+
+    public static final String SLOTS_TOTAL = "tooltip.slots";
+    public static final String CRAFTING_SLOTS = "tooltip.crafting_slots";
+    public static final String ENDER_BACKPACK_INFO = "tooltip.ender";
 }

src/main/java/de/eydamos/backpack/util/BackpackUtil.java

@@ -61,6 +61,11 @@ public static byte getType(ItemStack backpack) {
         return 0;
     }
 
+    public static int getTier(ItemStack itemStack) {
+        int tier = itemStack.getItemDamage() / 100;
+        return tier < 3 ? tier : 0;
+    }
+
     public static void pickupItem(EntityPlayer entityPlayer, ItemStack itemStack) {
         PlayerSave playerSave = new PlayerSave(entityPlayer);
         ItemStack backpack = playerSave.getPersonalBackpack();

src/main/resources/assets/backpack/lang/en_US.lang

@@ -75,4 +75,7 @@ tooltip.slots_used=Slots used
 tooltip.tier=Tier:
 tooltip.more_information=Press SHIFT for more information
 tooltip.intelligent=Intelligent
+tooltip.slots=%s Slots
+tooltip.crafting_slots=Crafting Backpack with %s Inventory Slots
+tooltip.ender=§4Disabled Item; No recipe
 itemGroup.tab.backpacks=Backpacks

src/main/resources/assets/backpack/lang/ru_RU.lang

@@ -75,4 +75,7 @@ tooltip.slots_used=Использовано слотов
 tooltip.tier=Уровень:
 tooltip.more_information=Нажмите SHIFT, для большей информации
 tooltip.intelligent=Умный
+tooltip.slots=%s слотов
+tooltip.crafting_slots=Рюкзак-верстак с %s слотами инвентаря
+tooltip.ender=§4Выключенный предмет; нет рецепта
 itemGroup.tab.backpacks=Backpacks