public CheckeredGridElement(TileGridElement tile, bool invertEveryOtherTile)
: base(tile.Width, tile.Height)
{
this.tile = tile;
this.invertEveryOtherTile = invertEveryOtherTile;
this.white = new WhiteGridElement(tile.Width, tile.Height);
}
private static void Apply(ExplicitOutlineShape target, TileGridElement tile, int xRight, int yTop, bool allLocations)
{
// Determine location of the center tile.
int x = xRight;
int y = yTop;
// Determine bounding box of the center tile.
Rectangle bbox = tile.BoundingBox;
bbox.X += x;
bbox.Y += y;
// Move tile location to the left/top so that the bounding box is just inside of the shape.
int i = bbox.Right / tile.Width;
int j = bbox.Bottom / tile.Height;
int k = (i + j) % 2;
x -= i * tile.Width;
y -= j * tile.Height;
bbox.X -= i * tile.Width;
bbox.Y -= j * tile.Height;
// Apply the tile in all locations where the bounding box is still inside of the shape.
for (i = 0; bbox.Left + i * tile.Width < target.XSize; i++)
{
for (j = 0; bbox.Top + j * tile.Height < target.YSize; j++)
{
if (allLocations || (i + j + k) % 2 == 0)
{
tile.Apply(target, x + i * tile.Width, y + j * tile.Height);
}
}
}
}
/// <summary>
/// Applies the given tile in a grid on the baseShape.
/// </summary>
/// <param name="gridTile"></param>
private void ApplyCheckered(TileGridElement gridTile)
{
CheckeredGridElement shapeTile = new CheckeredGridElement(gridTile, false);
this.Apply(shapeTile);
}
/// <summary>
/// Returns the given tile applied in a grid.
/// </summary>
/// <param name="xSize"></param>
/// <param name="ySize"></param>
/// <param name="gridTile"></param>
/// <param name="invertEveryOtherTile"></param>
/// <returns></returns>
private static GridOutlineShape CreateCheckeredInstance(int xSize, int ySize, TileGridElement gridTile, bool invertEveryOtherTile)
{
CheckeredGridElement shapeTile = new CheckeredGridElement(gridTile, invertEveryOtherTile);
return(new GridOutlineShape(xSize, ySize, shapeTile));
}
