internal int GetFourBytesOffset(short offset1, short offset2, short offset3, short offset4) { return ((offset1 - 0x81) * 0x0a * 0x7e * 0x0a + (offset2 - 0x30) * 0x7e * 0x0a + (offset3 - 0x81) * 0x0a + offset4 - 0x30); }