/// <summary>
/// Starts the game with a countdown
/// </summary>
/// <returns>IEnumerator</returns>
private IEnumerator StartGame()
{
//Lock the players cursor for better flying controlls with the mouse
Cursor.lockState = CursorLockMode.Locked;
// Set the state to "preparing"
State = GameState.Preparing;
// Update the UI (hide it)
uiController.ShowBanner("");
uiController.HideButton();
uiController.ShowSlider(false);
// Use the player camera, disable the main camera
mainCamera.gameObject.SetActive(false);
player.agentCamera.gameObject.SetActive(true);
// Show countdown
uiController.ShowBanner("3");
yield return(new WaitForSeconds(1f));
uiController.ShowBanner("2");
yield return(new WaitForSeconds(1f));
uiController.ShowBanner("1");
yield return(new WaitForSeconds(1f));
uiController.ShowBanner("Go!");
yield return(new WaitForSeconds(1f));
uiController.ShowBanner("");
// Set the state to "playing"
State = GameState.Playing;
// Start the game timer
gameTimerStartTime = Time.time;
// Unfreeze the agents
player.UnfreezeAgent();
opponent.UnfreezeAgent();
}