public Direction ChangeDirection(ISnake snake, ISpace space, IReadOnlyCollection <ISnake> snakes)
{
// Si no me choco adelante, sigo igual
IPosition pos = snake.MoveNew();
if (pos.IsValid(space.TopX, space.TopY) &&
(space[pos.X, pos.Y] == 0))
{
return(snake.Direction);
}
//Busco nueva dirección clockwise para no chocarme
foreach (Direction dir in new[] { 0, 1, 2, 3 })
{
pos = snake.MoveNew(dir);
if (!pos.IsValid(space.TopX, space.TopY))
{
continue;
}
if (space[pos.X, pos.Y] > 0)
{
continue;
}
return(dir);
}
return(snake.Direction);
//TODO: no meterse en callejones
}
