struct MonsterSpellResult;
-struct player_type;
-MonsterSpellResult spell_RF4_BREATH(player_type *player_ptr, AttributeType GF_TYPE, POSITION y, POSITION x, MONSTER_IDX m_idx, MONSTER_IDX t_idx, int TARGET_TYPE);
+class PlayerType;
+MonsterSpellResult spell_RF4_BREATH(PlayerType *player_ptr, AttributeType GF_TYPE, POSITION y, POSITION x, MONSTER_IDX m_idx, MONSTER_IDX t_idx, int TARGET_TYPE);