How can I store 4 8 bit coordinates into one integer (C#)?

Question

Lets say I have the following four variables: player1X, player1Y, player2X, player2Y. These have, for example, respectively the following values: 5, 10, 20, 12. Each of these va

Answer 1

You can use BitConverter

To get one Integer out of 4 bytes:

int i = BitConverter.ToInt32(new byte[] { player1X, player1Y, player2X, player2Y }, 0);

To get the four bytes out of the integer:

byte[] fourBytes = BitConverter.GetBytes(i);