public bool Go(Direction headdirection, ref Food food) // 'true' if alive
{
if (Math.Abs(headdirection - HeadDirection) == 2)
{
return(true);
}
HeadDirection = headdirection;
WormElement elem = Elements[0];
int x = elem.X,
y = elem.Y;
if ((int)headdirection % 2 == 0)
{
y += (int)headdirection - 1;
if (y < 0)
{
y = Program.Conf.FieldHeight - 1;
}
else if (y >= Program.Conf.FieldHeight)
{
y = 0;
}
}
else
{
x -= (int)headdirection - 2;
if (x < 0)
{
x = Program.Conf.FieldWidth - 1;
}
else if (x >= Program.Conf.FieldWidth)
{
x = 0;
}
}
foreach (WormElement e in Elements)
{
if ((e.X == x) && (e.Y == y))
{
return(false);
}
}
bool bfood = (x == food.Element.X) && (y == food.Element.Y);
Elements.Insert(0, new WormElement((byte)x, (byte)y, bfood));
DeletedElement = Elements[Elements.Count - 1];
Elements.Remove(DeletedElement);
if (DeletedElement.Food)
{
Elements.Add(new WormElement(DeletedElement.X, DeletedElement.Y, false));
DeletedElement = null;
}
return(true);
}
public Worm(byte length, byte headX, byte headY)
{
if (length >= Program.Conf.FieldWidth ||
headX-length < 0 ||
headY >= Program.Conf.FieldHeight)
throw new ApplicationException("Error: worm does not fit in the field.");
Elements = new List<WormElement>();
for(byte i = 0; i<length; i++)
{
WormElement elem = new WormElement((byte)(headX - i), headY, false);
Elements.Add(elem);
}
HeadDirection = Direction.Right;
DeletedElement = null;
}
public Worm(byte length, byte headX, byte headY)
{
if (length >= Program.Conf.FieldWidth ||
headX - length < 0 ||
headY >= Program.Conf.FieldHeight)
{
throw new ApplicationException("Error: worm does not fit in the field.");
}
Elements = new List <WormElement>();
for (byte i = 0; i < length; i++)
{
WormElement elem = new WormElement((byte)(headX - i), headY, false);
Elements.Add(elem);
}
HeadDirection = Direction.Right;
DeletedElement = null;
}
static void PrintAction(WormElement newhead, WormElement oldend)
{
Console.SetCursorPosition(newhead.X, newhead.Y);
Console.WriteLine(Conf.WormSymbol);
if (oldend==null)
return;
Console.SetCursorPosition(oldend.X, oldend.Y);
Console.WriteLine(" ");
}