//adds a key to Keys, returns true if the key has not been pressed recently
private static bool AddKey(ScreenKey key)
{
int index = Keys.FindIndex(k => k.Name == key.Name);
if (index >= 0 && index < Keys.Count) //the key has been pressed before
{
Keys[index].KeyDownState = KEYDOWNREFRESH;
return(false);
}
else //'new' key
//check for pause, and exit before all else
{
if (Scene.Current != null && key.Name == PauseKeyName)
{
//toggle the pause
if (Scene.Current.PAUSED)
{
Resume();
}
else
{
Pause();
}
}
else if (Scene.Current != null && key.Name == ExitKeyName && Scene.Current.PAUSED)
{
Resume();
Scene.Current.Stop();
Environment.Exit(0);
}
else
{
//check for key if looking for specific key
if (lookingForKey != "")
{
if (lookingForKey == key.Name)
{
//found the key, run the action and turn input back to normal
lookingForKey = "";
onFound();
}
}
else
{ //not looking for any key so just do normal input
key.KeyDownState = KEYDOWNFRESH;
Keys.Add(key);
}
}
return(true);
}
}
public static void Start()
{
if (Active)
{
return;
}
Active = true;
//set up the thread that gets input from the user
keyInputThread = new Thread(new ThreadStart(() => {
while (Active)
{
//wait until a key is pressed
while (!Console.KeyAvailable)
{
Thread.Sleep(1);
}
//key has been pressed...
ConsoleKeyInfo info = Console.ReadKey(true);
string name = info.Key.ToString();
ScreenKey key = new ScreenKey(name, info.KeyChar);
AddKey(key);
}
}));
//set up the thread that managers events
keyEventManagerThread = new Thread(new ThreadStart(() => {
while (Active)
{
watch.Start();
for (int i = Keys.Count - 1; i >= 0; i--)
{
if (--Keys[i].KeyDownState <= 0)
{
RemoveKey(Keys[i]);
}
}
watch.Stop();
Thread.Sleep(Math.Max(0, 30 - watch.Elapsed.Milliseconds));
watch.Reset();
}
}));
//start both of the threads
keyInputThread.Name = "KeyInput";
keyInputThread.Start();
keyEventManagerThread.Name = "KeyEventManager";
keyEventManagerThread.Start();
}
//removes a key
private static void RemoveKey(ScreenKey key)
{
Keys.Remove(key);
}