how to make a method for this code

I have simple question: I dont know how to make a method for codes like this开发者_C百科:

//how should i put these two lines in a method?
if (agent.GetWorldState().GetPlayMode() == PM_Before_Kick_Off)
{
    agent.Move(Vector(-1, -1));
}

Thanks.

It sounds like you're asking how to write a method to wrap that code. If so I think you want the following (assuming the type of agent is Agent)

void TheMethod(Agent& agent) {
  if (agent.GetWorldState().GetPlayMode() == PM_Before_Kick_Off) {
    agent.Move(Vector(-1, -1));
  }
}