/// <summary>
/// Gets filed inside a specific rectangle inside the grid.
/// </summary>
/// <param name="window">The window rectangle</param>
/// <returns>Set of field inside the window</returns>
public IEnumerable <GridField> GetFields(Rectangle window)
{
GridField[] result = new GridField[window.Height * window.Width];
for (int y = 0; y < window.Height; y++)
{
for (int x = 0; x < window.Width; x++)
{
result[y * window.Width + x] = fields[(window.Y + y) * width + (window.X + x)];
}
}
return(result);
}
/// <summary>
/// Creates a new grid of specifies size.
/// </summary>
/// <param name="width">Width of the whole grid</param>
/// <param name="height">Height of the whole grid</param>
/// <param name="fieldWidth">Width of one field</param>
/// <param name="fieldHeight">Height of one field</param>
public Grid(int width, int height, float fieldWidth, float fieldHeight)
{
fields = new GridField[width * height];
for (int i = 0; i < fields.Length; i++)
{
fields[i] = new GridField();
}
this.width = width;
this.height = height;
this.fieldWidth = fieldWidth;
this.fieldHeight = fieldHeight;
objects = new HashSet <Quadrangle>();
outside = new GridField();
}