feat(ench): blessing magic resistance tooltip

src/main/java/org/auioc/mcmod/harmonicench/enchantment/impl/BlessingEnchantment.java

@@ -19,20 +19,31 @@
 
 package org.auioc.mcmod.harmonicench.enchantment.impl;
 
+import net.minecraft.ChatFormatting;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.contents.TranslatableContents;
 import net.minecraft.world.damagesource.DamageSource;
 import net.minecraft.world.damagesource.DamageTypes;
 import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ArmorItem;
 import net.minecraft.world.item.ArmorMaterials;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.TooltipFlag;
 import net.minecraft.world.item.enchantment.Enchantment;
 import net.minecraft.world.item.enchantment.EnchantmentCategory;
 import net.minecraft.world.item.enchantment.EnchantmentHelper;
 import net.minecraft.world.item.enchantment.Enchantments;
+import org.auioc.mcmod.arnicalib.base.collection.ListUtils;
 import org.auioc.mcmod.arnicalib.base.math.MathUtil;
 import org.auioc.mcmod.harmonicench.enchantment.HEEnchantments;
 import org.auioc.mcmod.harmoniclib.enchantment.api.HLEnchantment;
 import org.auioc.mcmod.harmoniclib.enchantment.api.IItemEnchantment;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Arrays;
+import java.util.List;
 
 /**
  * <b>祝福 Blessing</b>
@@ -45,7 +56,7 @@
  * @author WakelessSloth56
  * @author Libellule505
  */
-public class BlessingEnchantment extends HLEnchantment implements IItemEnchantment.Protection {
+public class BlessingEnchantment extends HLEnchantment implements IItemEnchantment.Protection, IItemEnchantment.Tooltip {
 
     private static final EnchantmentCategory BLESSABLE_ARMOR = EnchantmentCategory.create(
         "BLESSABLE_ARMOR",
@@ -66,11 +77,13 @@ public class BlessingEnchantment extends HLEnchantment implements IItemEnchantme
         }
     );
 
+    private static final EquipmentSlot[] VALID_SLOTS = new EquipmentSlot[] { EquipmentSlot.HEAD, EquipmentSlot.CHEST, EquipmentSlot.LEGS, EquipmentSlot.FEET };
+
     public BlessingEnchantment() {
         super(
             Enchantment.Rarity.RARE,
             BLESSABLE_ARMOR,
-            new EquipmentSlot[] { EquipmentSlot.HEAD, EquipmentSlot.CHEST, EquipmentSlot.LEGS, EquipmentSlot.FEET },
+            VALID_SLOTS,
             (o) -> o != Enchantments.MENDING && o != HEEnchantments.FORGING.get()
         );
     }
@@ -85,15 +98,40 @@ public int getMaxCost(int lvl) {
         return 51;
     }
 
+    private static int calcMagicProtection(int lvl, ItemStack itemStack) {
+        int N = EnchantmentHelper.getEnchantments(itemStack).values().stream().mapToInt((i) -> i).sum();
+        double l = MathUtil.sigma(N, 1, (double i) -> 6.0D / i);
+        double r = MathUtil.sigma(lvl, 1, (double j) -> 1.0D / (5.0D * j - 4.0D));
+        return (int) (l * r);
+    }
+
     @Override
     public int getDamageProtection(int lvl, ItemStack itemStack, DamageSource source) {
         if (source.is(DamageTypes.MAGIC)) {
-            int N = EnchantmentHelper.getEnchantments(itemStack).values().stream().mapToInt((i) -> i).sum();
-            double l = MathUtil.sigma(N, 1, (double i) -> 6.0D / i);
-            double r = MathUtil.sigma(lvl, 1, (double j) -> 1.0D / (5.0D * j - 4.0D));
-            return (int) (l * r);
+            return calcMagicProtection(lvl, itemStack);
         }
         return 0;
     }
 
+    private static final List<String> TOOLTIP_MODIFIER_KEYS = Arrays.stream(VALID_SLOTS).map((slot) -> "item.modifiers." + slot.getName()).toList();
+
+    @Override
+    public void onItemTooltip(int lvl, @NotNull ItemStack itemStack, @Nullable Player player, List<Component> lines, TooltipFlag flags) {
+        if (ItemStack.shouldShowInTooltip(itemStack.getHideFlags(), ItemStack.TooltipPart.MODIFIERS)) { // TODO arnicalib
+            int i = ListUtils.indexOf(
+                lines,
+                (l) -> l.getContents() instanceof TranslatableContents t && TOOLTIP_MODIFIER_KEYS.contains(t.getKey())
+            );
+            if (i >= 0) {
+                var text = Component.translatable(
+                        "attribute.modifier.plus.0",
+                        calcMagicProtection(lvl, itemStack),
+                        Component.translatable("enchantment.harmonicench.blessing.tooltip")
+                    )
+                    .withStyle(ChatFormatting.BLUE);
+                lines.add(i + 1, text);
+            }
+        }
+    }
+
 }

src/main/resources/META-INF/accesstransformer.cfg

@@ -0,0 +1,2 @@
+public net.minecraft.world.item.ItemStack getHideFlags()I
+public net.minecraft.world.item.ItemStack shouldShowInTooltip(ILnet/minecraft/world/item/ItemStack$TooltipPart;)Z

src/main/resources/META-INF/mods.toml

@@ -14,6 +14,9 @@ description = '''${lib_mod_description}'''
 [[mixins]]
 config="harmoniclib.mixin.json"
 
+[[accessTransformers]]
+file="META-INF/accesstransformer.cfg"
+
 [[dependencies.${lib_mod_id}]]
     modId="neoforge"
     type="required"

src/main/resources/assets/harmonicench/lang/en_us.json

@@ -54,6 +54,7 @@
     "enchantment.harmonicench.proficiency.proficiency": "(Proficiency: %s)",
     "enchantment.harmonicench.curse_of_sacrificing.vanished": "%1$s thirsty for sacrifice, then vanished after sucking the life out of %2$s",
     "enchantment.harmonicench.aim.looking_at": "Found monster %1$s, %3$s m from player %2$s",
+    "enchantment.harmonicench.blessing.tooltip": "Magic Resistance",
 
     "death.attack.curseOfRebelling": "%1$s was betrayed by %2$s",
 

src/main/resources/assets/harmonicench/lang/zh_cn.json

@@ -54,6 +54,7 @@
     "enchantment.harmonicench.proficiency.proficiency": "（熟练度：%s）",
     "enchantment.harmonicench.curse_of_sacrificing.vanished": "%1$s渴求祭品，在抽取了%2$s的生命之后消失了",
     "enchantment.harmonicench.aim.looking_at": "发现%1$s，距离%2$s %3$s 米",
+    "enchantment.harmonicench.blessing.tooltip": "魔法抗性",
 
     "death.attack.curseOfRebelling": "%1$s死于%2$s的背叛",