/// <summary>
/// The BeingStrategy_UserInput builds a Command based on keyboard input.
/// It may take thousands of Update() callbacks before a Command
/// other than CommandIncomplete is returned.
/// </summary>
public Command GetCommand(IBeing being)
{
var press = Messager.GetNextKeyPress();
// Most of the time, we'll have no human input, hence no command.
if (press.Key == Keys.None)
{
return(commandIncomplete);
}
// Most commands take multiple keystrokes to resolve.
// When that's true, we've stored the next step to take for when
// we have the next keystroke(s) to get us closer to a Command.
if (IsAssemblingCommand)
{
return(nextStep(press, being));
}
// Otherwise, if we've got a direction key, do that
var dir = DirectionOf(press);
if (dir != CmdDirection.None)
{
return(Direction(being, dir));
}
// Or dispatch the beginning of another Command
switch (press.Key)
{
case Keys.C: return(Consume(being));
case Keys.D: return(Drop(being));
case Keys.H: return(Help());
case Keys.I: return(Inventory(being));
case Keys.S: return(SaveGame());
case Keys.U: return(Use(being));
case Keys.W: return(Wield(being));
case Keys.OemComma: return(PickUp(being));
default:
if (press.Character != default(char))
{
WriteLine($"Command [{press.Character}] is unknown.");
}
return(commandIncomplete);
}
}
/// <summary> If more input is ready, skip prompt and go to the next step </summary>
private Command NextStepIs(Func <AsciiKey, IBeing, Command> nextStep, string prompt, IBeing being)
{
this.nextStep = nextStep;
var press = Messager.GetNextKeyPress();
if (press.Key != Keys.None)
{
return(this.nextStep(press, being));
}
Messager.Prompt(prompt);
return(commandIncomplete);
}
private void HandleGameMenu()
{
for (AsciiKey press = Messager.GetNextKeyPress(); press.Key != Keys.None; press = Messager.GetNextKeyPress())
{
string readable = Readable(press);
Log.Info($"At menu, pressed [{readable}]");
// Quit
if (press.Key == Keys.Q)
{
if (ConfirmExit())
{
Game.Instance.Exit();
}
}
//0.0: Load saved game and resume play
if (press.Key == Keys.L)
{
GameMode.PopEngineMode();
MenuWindow.Hide();
LoadSavedGame();
// 1.+.SAVE: Hardcore/roguelike load game mode:
// delete save file
return;
}
if (GameInProgress)
{
// Return to game
if (press.Key == Keys.R || press.Key == Keys.Escape)
{
GameMode.PopEngineMode();
MenuWindow.Hide();
return;
}
//0.0: Save current game
if (press.Key == Keys.S)
{
SaveTheGame();
// 1.+.SAVE: Hardcore/roguelike save game mode:
// GameInProgress = false;
// UnloadGane();
// redraw menu options
}
}
else
{
// Begin new game
if (press.Key == Keys.B)
{
GameMode.PopEngineMode();
MenuWindow.Hide();
BeginNewGame();
return;
}
//0.0: Generate new seed, or enter new seed
}
}
}
