Refactor CharismaTradeEvents: Add GossipType import and resolve merchant using reflection

src/main/java/net/fretux/ascend/event/ActivityEvents.java

@@ -10,6 +10,7 @@ import net.minecraft.server.level.ServerLevel;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.world.effect.MobEffectCategory;
 import net.minecraft.world.entity.ai.attributes.Attributes;
+import net.minecraft.world.entity.ai.gossip.GossipType;
 import net.minecraft.world.entity.npc.Villager;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.level.LightLayer;
@@ -28,7 +29,6 @@ import net.minecraftforge.event.entity.living.LivingDamageEvent;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.animal.IronGolem;
 import net.minecraft.world.entity.animal.SnowGolem;
-import net.minecraft.world.entity.npc.GossipType;
 import net.minecraftforge.event.entity.living.LivingEvent;
 import net.minecraft.world.phys.AABB;
 

src/main/java/net/fretux/ascend/event/CharismaTradeEvents.java

@@ -3,16 +3,19 @@ package net.fretux.ascend.event;
 import net.fretux.ascend.AscendMod;
 import net.fretux.ascend.player.PlayerStatsProvider;
 import net.fretux.ascend.player.StatEffects;
+import net.minecraft.world.entity.ai.gossip.GossipType;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MerchantMenu;
+import net.minecraft.world.item.trading.Merchant;
 import net.minecraft.world.item.trading.MerchantOffer;
 import net.minecraft.world.entity.npc.Villager;
-import net.minecraft.world.entity.npc.GossipType;
 import net.minecraftforge.event.entity.player.PlayerContainerEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
+import java.lang.reflect.Field;
+
 @Mod.EventBusSubscriber(modid = AscendMod.MODID)
 public class CharismaTradeEvents {
 
@@ -20,45 +23,29 @@ public class CharismaTradeEvents {
     public static void onOpenMerchant(PlayerContainerEvent.Open event) {
         Player player = event.getEntity();
         if (player.level().isClientSide) return;
-
         AbstractContainerMenu menu = event.getContainer();
         if (!(menu instanceof MerchantMenu merchantMenu)) return;
-
         player.getCapability(PlayerStatsProvider.PLAYER_STATS).ifPresent(stats -> {
             int cha = stats.getAttributeLevel("charisma");
             if (cha <= 0) return;
-
+            Merchant merchant = resolveMerchant(merchantMenu);
-            if (merchantMenu.getTrader() instanceof Villager villager) {
+            if (merchant instanceof Villager villager) {
                 int reputationBonus = StatEffects.getCharismaVillagerReputationBonus(cha);
                 if (reputationBonus > 0) {
                     villager.getGossips().add(player.getUUID(), GossipType.MINOR_POSITIVE, reputationBonus);
                 }
             }
-
             double discountFraction = StatEffects.getCharismaTradeDiscount(cha);
             if (discountFraction <= 0.0d) return;
-
             var offers = merchantMenu.getOffers();
             if (offers == null) return;
-
             for (MerchantOffer offer : offers) {
                 if (offer == null) continue;
-
-                // Base cost of first input (emeralds, etc.)
                 int base = offer.getBaseCostA().getCount();
                 if (base <= 0) continue;
-
-                // Desired discounted cost
                 int target = (int) Math.max(1, Math.floor(base * (1.0d - discountFraction)));
-
-                // Current special price diff already includes:
-                // popularity, hero-of-village, etc.
                 int currentSpecial = offer.getSpecialPriceDiff();
-
-                // We want: base + newSpecial = target
                 int newSpecial = target - base;
-
-                // Adjust relative to current to avoid stacking each open.
                 int delta = newSpecial - currentSpecial;
                 if (delta != 0) {
                     offer.addToSpecialPriceDiff(delta);
@@ -66,4 +53,19 @@ public class CharismaTradeEvents {
             }
         });
     }
+
+    private static Merchant resolveMerchant(MerchantMenu merchantMenu) {
+        for (Field field : MerchantMenu.class.getDeclaredFields()) {
+            if (!Merchant.class.isAssignableFrom(field.getType())) {
+                continue;
+            }
+            field.setAccessible(true);
+            try {
+                return (Merchant) field.get(merchantMenu);
+            } catch (IllegalAccessException ignored) {
+                return null;
+            }
+        }
+        return null;
+    }
 }