Merge remote-tracking branch 'origin/feature/add-support-for-localized-versions' into feature/add-japanese-distribution-pokemon

include/gen2/Gen2GameReader.h

@@ -229,6 +229,12 @@ public:
      * Don't forget to call finishSave() after using this function!
      */
     void setEventFlag(uint16_t flagNumber, bool enabled);
+
+    /**
+     * @brief This function will change an SRAM field to let gen 2 games prompt you
+     * to reconfigure the game clock
+     */
+    void resetRTC();
 protected:
 private:
     IRomReader &romReader_;

src/gen2/Gen2GameReader.cpp

@@ -863,4 +863,18 @@ void Gen2GameReader::setEventFlag(uint16_t flagNumber, bool enabled)
     }
 
     saveManager_.writeByte(resultVal);
+}
+
+void Gen2GameReader::resetRTC()
+{
+    // The game checks bit 7 on the sRTCStatusFlags field in SRAM
+    // this is set when the game detects wrong RTC register values.
+    // In order to let the game prompt to reconfigure the RTC clock, we just have to set this bit
+    // Based on sRTCStatusFlags, RecordRTCStatus, .set_bit_7 in
+    // https://github.com/pret/pokecrystal
+    // https://github.com/pret/pokegold
+    const uint8_t rtcStatusFieldValue = 0xC0;
+
+    saveManager_.seekToBankOffset(0, 0xC60);
+    saveManager_.writeByte(rtcStatusFieldValue);
 }