/// <summary>
/// Numbers the of cells text changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="TextChangedEventArgs"/> instance containing the event data.</param>
private void NumberOfCellsTextChanged(object sender, TextChangedEventArgs e)
{
var textBox = sender as TextBox;
if (textBox != null)
{
int number;
var success = int.TryParse(((TextBox)sender).Text, out number);
if (success & number >= 0)
{
TotalCells = number;
ResetGridAttributes();
InitializeGrid();
}
else
{
textBox.Text = TotalCells.ToString(CultureInfo.InvariantCulture);
}
}
}
public void Query(Vector2 position, float radius, Action <IEnumerable <SpaceUnit> > actionOnFoundUnits)
{
Point start = new Point(
(int)Math.Floor((position.X - radius) / CellSize.X),
(int)Math.Floor((position.Y - radius) / CellSize.Y));
Point end = new Point(
(int)Math.Ceiling((position.X + radius) / CellSize.X),
(int)Math.Ceiling((position.Y + radius) / CellSize.Y));
start = Vector2.Clamp(start.ToVector2(), Vector2.Zero, TotalCells.ToVector2()).ToPoint();
end = Vector2.Clamp(end.ToVector2(), Vector2.Zero, TotalCells.ToVector2()).ToPoint();
for (int y = start.Y; y < end.Y; y++)
{
for (int x = start.X; x < end.X; x++)
{
//if (Circle.Intercects(position, radius, new Rectangle(new Point(x, y) * CellSize, CellSize)))
actionOnFoundUnits.Invoke(Cells[y][x]);
}
}
}