public static Point?GetDirectionDown(this IDictionary <Keys, Point> map, InputTwinState state)
{
var shift = state.IsKeyDown(Keys.LeftShift);
var result = map.Where(x => state.IsKeyDown(x.Key)).Select(x => x.Value);
if (result.Count() < 2 && shift)
{
return(null);
}
var direction = result.Aggregate(Point.Zero, (a, b) => a + b);
if (direction == Point.Zero)
{
return(null);
}
return(direction);
}
public static Point?GetDirectionNumpadDown(InputTwinState state)
{
var result = NumpadKeys.Where(x => state.IsKeyDown(x.Key)).Select(x => x.Value);
if (result.Count() == 1)
{
return(result.Single());
}
return(null);
}
public static int?GetNumberDown(this IDictionary <Keys, int> map, InputTwinState state)
{
var result = map.Where(x => state.IsKeyDown(x.Key)).Select(x => x.Value);
if (result.Count() == 1)
{
return(result.Single());
}
return(null);
}
