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src/components/rpg-entry/useRpgEntryCharacterSelect.ts

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+import { useCallback } from 'react';
+
+import type { Character, CustomWorldProfile, GameState } from '../../types';
+
+type UseRpgEntryCharacterSelectParams = {
+  gameState: GameState;
+  handleBackToWorldSelect: () => void;
+  setSelectionStage: (stage: 'platform') => void;
+  handleCharacterSelect: (character: NonNullable<GameState['playerCharacter']>) => void;
+};
+
+/**
+ * 统一角色选择页的返回与确认动作，保持主阶段路由器里只做装配。
+ */
+export function useRpgEntryCharacterSelect(
+  params: UseRpgEntryCharacterSelectParams,
+) {
+  const {
+    gameState,
+    handleBackToWorldSelect,
+    setSelectionStage,
+    handleCharacterSelect,
+  } = params;
+
+  const customWorldProfile: CustomWorldProfile | null =
+    gameState.customWorldProfile;
+
+  const handleBack = useCallback(() => {
+    handleBackToWorldSelect();
+    setSelectionStage('platform');
+  }, [handleBackToWorldSelect, setSelectionStage]);
+
+  const handleConfirm = useCallback(
+    (character: Character) => {
+      handleCharacterSelect(character);
+    },
+    [handleCharacterSelect],
+  );
+
+  return {
+    worldType: gameState.worldType,
+    customWorldProfile,
+    handleBack,
+    handleConfirm,
+  };
+}