public Rect Union(Rect rect)
{
float minx = Math.Min(MinX, rect.MinX);
float miny = Math.Min(MinY, rect.MinY);
float maxx = Math.Max(MaxX, rect.MaxX);
float maxy = Math.Max(MaxY, rect.MaxY);
return new Rect(minx, miny, maxx - minx, maxy - miny);
}
public static bool Equal(ref Rect rect1, ref Rect rect2)
{
return rect1.Origin.Equals(rect2.Origin) && rect1.Size.Equals(rect2.Size);
}
public Rect Intersection(Rect rect)
{
if (IntersectsRect(rect) == false)
return Zero;
/* +-------------+
* | |
* | +---+-----+
* +-----+---+ | | |
* | | | | | |
* | | | +---+-----+
* | | | |
* | | | |
* +-----+---+ |
* | |
* +-------------+
*/
float minx = 0, miny = 0, maxx = 0, maxy = 0;
// X
if (rect.MinX < this.MinX) minx = this.MinX;
else if (rect.MinX < this.MaxX) minx = rect.MinX;
if (rect.MaxX < this.MaxX) maxx = rect.MaxX;
else if (rect.MaxX > this.MaxX) maxx = this.MaxX;
// Y
if (rect.MinY < this.MinY) miny = this.MinY;
else if (rect.MinY < this.MaxY) miny = rect.MinY;
if (rect.MaxY < this.MaxY) maxy = rect.MaxY;
else if (rect.MaxY > this.MaxY) maxy = this.MaxY;
return new Rect(minx, miny, maxx - minx, maxy - miny);
}
public bool IntersectsRect(Rect rect)
{
return !(this.MaxX < rect.MinX || rect.MaxX < this.MinX || this.MaxY < rect.MinY || rect.MaxY < this.MinY);
}
public bool Equals(Rect rect)
{
return Origin.Equals(rect.Origin) && Size.Equals(rect.Size);
}
public Sprite(string assetName, Rect? rect = null, bool isRotated = false, Size? unCropSize = null, Point? cropPosition = null)
{
this.Texture2D = Application.SharedApplication.Game.Content.Load<Texture2D>(assetName);
this.initDefaultProperty(rect, isRotated, unCropSize, cropPosition);
}
public Sprite(byte[] data, int width, int height, Rect? rect = null, bool isRotated = false, Size? unCropSize = null, Point? cropPosition = null)
{
this.Texture2D = new Texture2D(Application.SharedApplication.GraphicsDevice, width, height, false, SurfaceFormat.Color);
this.Texture2D.SetData<byte>(data);
this.initDefaultProperty(rect, isRotated, unCropSize, cropPosition);
}
public Sprite(Texture2D texture2d, Rect? rect = null, bool isRotated = false, Size? unCropSize = null, Point? cropPosition = null)
{
this.Texture2D = texture2d;
this.initDefaultProperty(rect, isRotated, unCropSize, cropPosition);
}
private void initDefaultProperty(Rect? rect = null, bool isRotated = false, Size? unCropSize = null, Point? cropPosition = null)
{
this.Opacity = 1.0f;
this.Color = Color.White;
if (rect == null)
this.SourceRectangle = new Rect(0, 0, this.Texture2D.Width, this.Texture2D.Height);
else
this.SourceRectangle = rect.Value;
this.IsRotate = isRotated;
if (unCropSize != null)
this.UnCropSize = unCropSize.Value;
if (cropPosition != null)
this.CropPosition = cropPosition.Value;
}