fix: resolve sync count inflation, add essence/s display, sort auto-buy by level

Closes #147: patch functions now detect actual changes before incrementing
the patched counter, preventing inflated sync reports.

Closes #149: computeEssencePerSecond exported from tick engine and shown
in the resource bar dropdown alongside Gold/s.

Closes #150: auto-buy now sorts adventurers by level descending for
semantic clarity, ensuring highest-tier units are purchased first.

apps/api/src/routes/debug.ts

@@ -642,6 +642,14 @@ const patchAdventurerStats = (state: GameState): number => {
     if (defaultAdventurer === undefined) {
       continue;
     }
+    const hasChanged
+      = savedAdventurer.baseCost !== defaultAdventurer.baseCost
+      || savedAdventurer.class !== defaultAdventurer.class
+      || savedAdventurer.combatPower !== defaultAdventurer.combatPower
+      || savedAdventurer.essencePerSecond !== defaultAdventurer.essencePerSecond
+      || savedAdventurer.goldPerSecond !== defaultAdventurer.goldPerSecond
+      || savedAdventurer.level !== defaultAdventurer.level
+      || savedAdventurer.name !== defaultAdventurer.name;
     savedAdventurer.baseCost = defaultAdventurer.baseCost;
     savedAdventurer.class = defaultAdventurer.class;
     savedAdventurer.combatPower = defaultAdventurer.combatPower;
@@ -649,8 +657,10 @@ const patchAdventurerStats = (state: GameState): number => {
     savedAdventurer.goldPerSecond = defaultAdventurer.goldPerSecond;
     savedAdventurer.level = defaultAdventurer.level;
     savedAdventurer.name = defaultAdventurer.name;
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -670,6 +680,15 @@ const patchQuestStats = (state: GameState): number => {
     if (defaultQuest === undefined) {
       continue;
     }
+    const savedPrereqs = JSON.stringify(savedQuest.prerequisiteIds);
+    const defaultPrereqs = JSON.stringify(defaultQuest.prerequisiteIds);
+    const hasChanged
+      = savedQuest.name !== defaultQuest.name
+      || savedQuest.description !== defaultQuest.description
+      || savedQuest.durationSeconds !== defaultQuest.durationSeconds
+      || savedPrereqs !== defaultPrereqs
+      || savedQuest.zoneId !== defaultQuest.zoneId
+      || savedQuest.combatPowerRequired !== defaultQuest.combatPowerRequired;
     savedQuest.name = defaultQuest.name;
     savedQuest.description = defaultQuest.description;
     savedQuest.durationSeconds = defaultQuest.durationSeconds;
@@ -678,8 +697,10 @@ const patchQuestStats = (state: GameState): number => {
     if (defaultQuest.combatPowerRequired !== undefined) {
       savedQuest.combatPowerRequired = defaultQuest.combatPowerRequired;
     }
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -689,6 +710,7 @@ const patchQuestStats = (state: GameState): number => {
  * @param state - The player's current game state (mutated in place).
  * @returns The number of boss entries whose stats were updated.
  */
+/* eslint-disable-next-line complexity, max-statements -- Comparing many boss stat fields for change detection */
 const patchBossStats = (state: GameState): number => {
   const defaultBossMap = new Map(defaultBosses.map((boss) => {
     return [ boss.id, boss ] as const;
@@ -699,6 +721,20 @@ const patchBossStats = (state: GameState): number => {
     if (defaultBoss === undefined) {
       continue;
     }
+    const savedRewards = JSON.stringify(savedBoss.equipmentRewards);
+    const defaultRewards = JSON.stringify(defaultBoss.equipmentRewards);
+    const hasChanged
+      = savedBoss.name !== defaultBoss.name
+      || savedBoss.description !== defaultBoss.description
+      || savedBoss.maxHp !== defaultBoss.maxHp
+      || savedBoss.damagePerSecond !== defaultBoss.damagePerSecond
+      || savedBoss.goldReward !== defaultBoss.goldReward
+      || savedBoss.essenceReward !== defaultBoss.essenceReward
+      || savedBoss.crystalReward !== defaultBoss.crystalReward
+      || savedRewards !== defaultRewards
+      || savedBoss.prestigeRequirement !== defaultBoss.prestigeRequirement
+      || savedBoss.zoneId !== defaultBoss.zoneId
+      || savedBoss.bountyRunestones !== defaultBoss.bountyRunestones;
     savedBoss.name = defaultBoss.name;
     savedBoss.description = defaultBoss.description;
     savedBoss.maxHp = defaultBoss.maxHp;
@@ -710,8 +746,10 @@ const patchBossStats = (state: GameState): number => {
     savedBoss.prestigeRequirement = defaultBoss.prestigeRequirement;
     savedBoss.zoneId = defaultBoss.zoneId;
     savedBoss.bountyRunestones = defaultBoss.bountyRunestones;
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -731,13 +769,21 @@ const patchZoneStats = (state: GameState): number => {
     if (defaultZone === undefined) {
       continue;
     }
+    const hasChanged
+      = savedZone.name !== defaultZone.name
+      || savedZone.description !== defaultZone.description
+      || savedZone.emoji !== defaultZone.emoji
+      || savedZone.unlockBossId !== defaultZone.unlockBossId
+      || savedZone.unlockQuestId !== defaultZone.unlockQuestId;
     savedZone.name = defaultZone.name;
     savedZone.description = defaultZone.description;
     savedZone.emoji = defaultZone.emoji;
     savedZone.unlockBossId = defaultZone.unlockBossId;
     savedZone.unlockQuestId = defaultZone.unlockQuestId;
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -747,6 +793,7 @@ const patchZoneStats = (state: GameState): number => {
  * @param state - The player's current game state (mutated in place).
  * @returns The number of upgrade entries whose stats were updated.
  */
+/* eslint-disable-next-line complexity -- Comparing many upgrade stat fields for change detection */
 const patchUpgradeStats = (state: GameState): number => {
   const defaultUpgradeMap = new Map(defaultUpgrades.map((upgrade) => {
     return [ upgrade.id, upgrade ] as const;
@@ -757,6 +804,15 @@ const patchUpgradeStats = (state: GameState): number => {
     if (defaultUpgrade === undefined) {
       continue;
     }
+    const hasChanged
+      = savedUpgrade.name !== defaultUpgrade.name
+      || savedUpgrade.description !== defaultUpgrade.description
+      || savedUpgrade.target !== defaultUpgrade.target
+      || savedUpgrade.adventurerId !== defaultUpgrade.adventurerId
+      || savedUpgrade.multiplier !== defaultUpgrade.multiplier
+      || savedUpgrade.costGold !== defaultUpgrade.costGold
+      || savedUpgrade.costEssence !== defaultUpgrade.costEssence
+      || savedUpgrade.costCrystals !== defaultUpgrade.costCrystals;
     savedUpgrade.name = defaultUpgrade.name;
     savedUpgrade.description = defaultUpgrade.description;
     savedUpgrade.target = defaultUpgrade.target;
@@ -767,8 +823,10 @@ const patchUpgradeStats = (state: GameState): number => {
     savedUpgrade.costGold = defaultUpgrade.costGold;
     savedUpgrade.costEssence = defaultUpgrade.costEssence;
     savedUpgrade.costCrystals = defaultUpgrade.costCrystals;
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -778,6 +836,7 @@ const patchUpgradeStats = (state: GameState): number => {
  * @param state - The player's current game state (mutated in place).
  * @returns The number of equipment entries whose stats were updated.
  */
+/* eslint-disable-next-line complexity, max-statements -- Comparing many equipment stat fields for change detection */
 const patchEquipmentStats = (state: GameState): number => {
   const defaultEquipmentMap = new Map(defaultEquipment.map((item) => {
     return [ item.id, item ] as const;
@@ -788,6 +847,18 @@ const patchEquipmentStats = (state: GameState): number => {
     if (defaultItem === undefined) {
       continue;
     }
+    const savedBonus = JSON.stringify(savedItem.bonus);
+    const defaultBonus = JSON.stringify(defaultItem.bonus);
+    const savedCost = JSON.stringify(savedItem.cost);
+    const defaultCost = JSON.stringify(defaultItem.cost);
+    const hasChanged
+      = savedItem.name !== defaultItem.name
+      || savedItem.description !== defaultItem.description
+      || savedItem.type !== defaultItem.type
+      || savedItem.rarity !== defaultItem.rarity
+      || savedBonus !== defaultBonus
+      || savedCost !== defaultCost
+      || savedItem.setId !== defaultItem.setId;
     savedItem.name = defaultItem.name;
     savedItem.description = defaultItem.description;
     savedItem.type = defaultItem.type;
@@ -799,8 +870,10 @@ const patchEquipmentStats = (state: GameState): number => {
     if (defaultItem.setId !== undefined) {
       savedItem.setId = defaultItem.setId;
     }
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 
@@ -820,6 +893,16 @@ const patchAchievementStats = (state: GameState): number => {
     if (defaultAchievement === undefined) {
       continue;
     }
+    const savedCondition = JSON.stringify(savedAchievement.condition);
+    const defaultCondition = JSON.stringify(defaultAchievement.condition);
+    const savedReward = JSON.stringify(savedAchievement.reward);
+    const defaultReward = JSON.stringify(defaultAchievement.reward);
+    const hasChanged
+      = savedAchievement.name !== defaultAchievement.name
+      || savedAchievement.description !== defaultAchievement.description
+      || savedAchievement.icon !== defaultAchievement.icon
+      || savedCondition !== defaultCondition
+      || savedReward !== defaultReward;
     savedAchievement.name = defaultAchievement.name;
     savedAchievement.description = defaultAchievement.description;
     savedAchievement.icon = defaultAchievement.icon;
@@ -827,8 +910,10 @@ const patchAchievementStats = (state: GameState): number => {
     if (defaultAchievement.reward !== undefined) {
       savedAchievement.reward = { ...defaultAchievement.reward };
     }
+    if (hasChanged) {
       patched = patched + 1;
     }
+  }
   return patched;
 };
 

apps/web/src/components/ui/resourceBar.tsx

@@ -10,7 +10,11 @@
 /* eslint-disable complexity -- Many conditional resource and badge render paths */
 import { useState, type FocusEvent, type JSX } from "react";
 import { useGame } from "../../context/gameContext.js";
-import { RESOURCE_CAP, computeGoldPerSecond } from "../../engine/tick.js";
+import {
+  RESOURCE_CAP,
+  computeEssencePerSecond,
+  computeGoldPerSecond,
+} from "../../engine/tick.js";
 import type { Resource } from "@elysium/types";
 
 interface ResourceBarProperties {
@@ -83,12 +87,14 @@ const ResourceBar = ({
   const { gold, essence, crystals } = resources;
   let partyCombatPower = 0;
   let goldPerSecond = 0;
+  let essencePerSecond = 0;
   if (state !== null) {
     for (const adventurer of state.adventurers) {
       const contribution = adventurer.combatPower * adventurer.count;
       partyCombatPower = partyCombatPower + contribution;
     }
     goldPerSecond = computeGoldPerSecond(state);
+    essencePerSecond = computeEssencePerSecond(state);
   }
 
   let avatarUrl: string | null = null;
@@ -182,6 +188,13 @@ const ResourceBar = ({
                 </span>
                 <span className="resource-label">{"Gold/s"}</span>
               </div>
+              <div className="resource">
+                <span className="resource-icon">{"⚡"}</span>
+                <span className="resource-value">
+                  {formatNumber(essencePerSecond)}
+                </span>
+                <span className="resource-label">{"Essence/s"}</span>
+              </div>
               <div className={`resource${essenceFull
                 ? " resource-full"
                 : ""}`}>

apps/web/src/context/gameContext.tsx

@@ -1127,7 +1127,7 @@ export const GameProvider = ({
               return adventurer.unlocked && next.resources.gold >= cost;
             }).
             sort((adventurerA, adventurerB) => {
-              return adventurerB.combatPower - adventurerA.combatPower;
+              return adventurerB.level - adventurerA.level;
             });
           if (bestAdventurer !== undefined) {
             const purchaseCost

apps/web/src/engine/tick.ts

@@ -195,6 +195,54 @@ export const computeGoldPerSecond = (state: GameState): number => {
   return goldPerSecond;
 };
 
+/**
+ * Computes the current essence per second for the given game state,
+ * applying all relevant multipliers (upgrades, prestige, echo, crafted, companion).
+ * @param state - The current game state.
+ * @returns The total essence per second.
+ */
+export const computeEssencePerSecond = (state: GameState): number => {
+  const runestonesEssence = state.prestige.runestonesEssenceMultiplier ?? 1;
+  const craftedEssenceMultiplier
+    = state.exploration?.craftedEssenceMultiplier ?? 1;
+  const companionBonus = getActiveCompanionBonus(
+    state.companions?.activeCompanionId,
+    state.companions?.unlockedCompanionIds ?? [],
+  );
+  const companionEssenceMult
+    = companionBonus?.type === "essenceIncome"
+      ? 1 + companionBonus.value
+      : 1;
+
+  let essencePerSecond = 0;
+  for (const adventurer of state.adventurers) {
+    if (!adventurer.unlocked || adventurer.count === 0) {
+      continue;
+    }
+    const upgradeMultiplier = state.upgrades.
+      filter((upgrade) => {
+        const isGlobal = upgrade.target === "global";
+        const isThisAdventurer
+          = upgrade.target === "adventurer"
+          && upgrade.adventurerId === adventurer.id;
+        return upgrade.purchased && (isGlobal || isThisAdventurer);
+      }).
+      reduce((mult, upgrade) => {
+        return mult * upgrade.multiplier;
+      }, 1);
+    const contribution
+      = adventurer.essencePerSecond
+      * adventurer.count
+      * upgradeMultiplier
+      * state.prestige.productionMultiplier
+      * runestonesEssence
+      * craftedEssenceMultiplier
+      * companionEssenceMult;
+    essencePerSecond = essencePerSecond + contribution;
+  }
+  return essencePerSecond;
+};
+
 /**
  * Pure function — applies one game tick to the state.
  * DeltaSeconds: time elapsed since last tick.