初始仓库迁移

src/hooks/useTreasureFlow.ts

@@ -0,0 +1,98 @@
+import { useCallback } from 'react';
+
+import { addInventoryItems } from '../data/npcInteractions';
+import {
+  buildTreasureEncounterStoryMoment,
+  buildTreasureResultText,
+  resolveTreasureReward,
+} from '../data/treasureInteractions';
+import { Character, Encounter, GameState, StoryMoment, StoryOption } from '../types';
+import type {CommitGeneratedState} from './generatedState';
+
+type ProgressTreasureQuest = (state: GameState, sceneId: string | null) => GameState;
+
+export function isTreasureEncounter(encounter: GameState['currentEncounter']): encounter is Encounter {
+  return Boolean(encounter?.kind === 'treasure');
+}
+
+export function buildTreasureStory(
+  state: GameState,
+  _character: Character,
+  encounter: Encounter,
+  overrideText?: string,
+): StoryMoment {
+  return buildTreasureEncounterStoryMoment({
+    state,
+    encounter,
+    overrideText,
+  });
+}
+
+export function useTreasureFlow({
+  gameState,
+  commitGeneratedState,
+  progressTreasureQuest,
+}: {
+  gameState: GameState;
+  commitGeneratedState: CommitGeneratedState;
+  progressTreasureQuest: ProgressTreasureQuest;
+}) {
+  const handleTreasureInteraction = useCallback((option: StoryOption) => {
+    if (!gameState.playerCharacter || option.interaction?.kind !== 'treasure' || gameState.currentEncounter?.kind !== 'treasure') {
+      return false;
+    }
+
+    const encounter = gameState.currentEncounter;
+    const action = option.interaction.action;
+    const reward = action === 'leave'
+      ? null
+      : resolveTreasureReward(gameState, encounter, action);
+    const progressedState = action === 'leave'
+      ? gameState
+      : progressTreasureQuest(gameState, gameState.currentScenePreset?.id ?? null);
+
+    const nextState: GameState = {
+      ...progressedState,
+      currentEncounter: null,
+      npcInteractionActive: false,
+      sceneMonsters: [],
+      playerX: 0,
+      playerFacing: 'right' as const,
+      animationState: progressedState.animationState,
+      scrollWorld: false,
+      inBattle: false,
+      playerHp: reward
+        ? Math.min(progressedState.playerMaxHp, progressedState.playerHp + reward.hp)
+        : progressedState.playerHp,
+      playerMana: reward
+        ? Math.min(progressedState.playerMaxMana, progressedState.playerMana + reward.mana)
+        : progressedState.playerMana,
+      playerCurrency: reward
+        ? progressedState.playerCurrency + reward.currency
+        : progressedState.playerCurrency,
+      playerInventory: reward
+        ? addInventoryItems(progressedState.playerInventory, reward.items)
+        : progressedState.playerInventory,
+      currentBattleNpcId: null,
+      currentNpcBattleMode: null,
+      currentNpcBattleOutcome: null,
+      sparReturnEncounter: null,
+      sparPlayerHpBefore: null,
+      sparPlayerMaxHpBefore: null,
+      sparStoryHistoryBefore: null,
+    };
+
+    void commitGeneratedState(
+      nextState,
+      gameState.playerCharacter,
+      option.actionText,
+      buildTreasureResultText(encounter, action, reward ?? undefined),
+      option.functionId,
+    );
+    return true;
+  }, [commitGeneratedState, gameState, progressTreasureQuest]);
+
+  return {
+    handleTreasureInteraction,
+  };
+}