/// <summary>
/// Create a mesh for a scale9 background. This assumed the tilesheet is 3*3 and positions the
/// corners without scalling, scales the edges on one axis only, and fills the middle with the
/// center tile.
/// </summary>
/// <param name="Rect"></param>
/// <param name="Tiles"></param>
/// <param name="Corners"></param>
/// <returns></returns>
public MeshPart Scale9Part(
Rectangle Rect,
ITileSheet Tiles,
Scale9Corners Corners = Scale9Corners.All)
{
var rects = new Rectangle[9];
var margin = new Margin(0, 0, 0, 0);
if (Corners.HasFlag(Scale9Corners.Left))
{
margin.Left = Tiles.TileWidth;
}
if (Corners.HasFlag(Scale9Corners.Right))
{
margin.Right = Tiles.TileWidth;
}
if (Corners.HasFlag(Scale9Corners.Top))
{
margin.Top = Tiles.TileHeight;
}
if (Corners.HasFlag(Scale9Corners.Bottom))
{
margin.Bottom = Tiles.TileHeight;
}
rects[0] = new Rectangle(Rect.Left, Rect.Top, margin.Left, margin.Top);
rects[1] = new Rectangle(Rect.Left + margin.Left, Rect.Top, Rect.Width - margin.Left - margin.Right, margin.Top);
rects[2] = new Rectangle(Rect.Right - margin.Right, Rect.Top, margin.Right, margin.Top);
rects[3] = new Rectangle(Rect.Left, Rect.Top + margin.Top, margin.Left, Rect.Height - margin.Top - margin.Bottom);
rects[4] = new Rectangle(Rect.Left + margin.Left, Rect.Top + margin.Top, Rect.Width - margin.Left - margin.Right, Rect.Height - margin.Top - margin.Bottom);
rects[5] = new Rectangle(Rect.Right - margin.Right, Rect.Top + margin.Top, margin.Right, Rect.Height - margin.Top - margin.Bottom);
rects[6] = new Rectangle(Rect.Left, Rect.Bottom - margin.Bottom, margin.Left, margin.Bottom);
rects[7] = new Rectangle(Rect.Left + margin.Left, Rect.Bottom - margin.Bottom, Rect.Width - margin.Left - margin.Right, margin.Bottom);
rects[8] = new Rectangle(Rect.Right - margin.Right, Rect.Bottom - margin.Bottom, margin.Right, margin.Bottom);
var result = new MeshPart {
VertexOffset = this.VertexCount, Mesh = this
};
for (var i = 0; i < 9; ++i)
{
if (rects[i].Width != 0 && rects[i].Height != 0)
{
if (Tiles.RepeatWhenUsedAsBorder)
{
TiledSpritePart(rects[i], Tiles, i);
}
else
{
FittedSpritePart(rects[i], Tiles, i);
}
}
}
result.VertexCount = this.VertexCount - result.VertexOffset;
return(result);
}
/// <summary>
/// Create a mesh for a scale9 background. This assumed the tilesheet is 3*3 and positions the
/// corners without scalling, scales the edges on one axis only, and fills the middle with the
/// center tile.
/// </summary>
/// <param name="Rect"></param>
/// <param name="Tiles"></param>
/// <param name="Corners"></param>
/// <returns></returns>
public static Mesh CreateScale9Background(
Rectangle Rect,
ITileSheet Tiles,
Scale9Corners Corners = Scale9Corners.All)
{
var rects = new Rectangle[9];
var margin = new Margin(0, 0, 0, 0);
if (Corners.HasFlag(Scale9Corners.Left))
{
margin.Left = Tiles.TileWidth;
}
if (Corners.HasFlag(Scale9Corners.Right))
{
margin.Right = Tiles.TileWidth;
}
if (Corners.HasFlag(Scale9Corners.Top))
{
margin.Top = Tiles.TileHeight;
}
if (Corners.HasFlag(Scale9Corners.Bottom))
{
margin.Bottom = Tiles.TileHeight;
}
rects[0] = new Rectangle(Rect.Left, Rect.Top, margin.Left, margin.Top);
rects[1] = new Rectangle(Rect.Left + margin.Left, Rect.Top,
Rect.Width - margin.Left - margin.Right, margin.Top);
rects[2] = new Rectangle(Rect.Right - margin.Right, Rect.Top, margin.Right, margin.Top);
rects[3] = new Rectangle(Rect.Left, Rect.Top + margin.Top, margin.Left,
Rect.Height - margin.Top - margin.Bottom);
rects[4] = new Rectangle(Rect.Left + margin.Left, Rect.Top + margin.Top,
Rect.Width - margin.Left - margin.Right, Rect.Height - margin.Top - margin.Bottom);
rects[5] = new Rectangle(Rect.Right - margin.Right, Rect.Top + margin.Top, margin.Right,
Rect.Height - margin.Top - margin.Bottom);
rects[6] = new Rectangle(Rect.Left, Rect.Bottom - margin.Bottom, margin.Left, margin.Bottom);
rects[7] = new Rectangle(Rect.Left + margin.Left, Rect.Bottom - margin.Bottom,
Rect.Width - margin.Left - margin.Right, margin.Bottom);
rects[8] = new Rectangle(Rect.Right - margin.Right, Rect.Bottom - margin.Bottom,
margin.Right, margin.Bottom);
var result = new List <Mesh>();
for (var i = 0; i < 9; ++i)
{
if (rects[i].Width != 0 && rects[i].Height != 0)
{
if (Tiles.RepeatWhenUsedAsBorder)
{
result.Add(TiledSprite(rects[i], Tiles, i));
}
else
{
result.Add(FittedSprite(rects[i], Tiles, i));
}
}
}
return(Merge(result.ToArray()));
}