public void IsRegionBlank()
{
var region = new Rectangle(5, 5, 5, 5);
Assert.IsFalse(src.IsRegionBlank(region, 0.05));
for (int j = region.Top; j < region.Bottom; j++)
{
for (int i = region.Left; i < region.Right; i++)
{
var clr = src.GetPixel(i, j);
src.SetPixel(i, j, Color.FromArgb(0, clr.R, clr.G, clr.B));
}
}
Assert.IsTrue(src.IsRegionBlank(region, 0.05));
Assert.IsFalse(src.IsBlank(0.05));
}
/// <summary>
/// Slices and dices the image passed into frames and adds them.
/// Frames are taken from the surface from left to right.
/// </summary>
/// <param name="surface"></param>
/// <param name="ownSurface">Pass true to indicate that this sprite should own the surface, and handle its disposal.</param>
/// <param name="startPoint">The starting point in pixels from which to parse frames.</param>
/// <param name="size">The size of the image to cut out for each frame</param>
/// <param name="extraSpace">How many extra pixels to insert between each frame.</param>
/// <param name="skipBlank">Whether or not blank frames should be automatically dropped.</param>
public void AddNewFrames(Surface surface, bool ownSurface, Point startPoint, Point extraSpace, Size size, bool skipBlank)
{
Point location = startPoint;
PixelBuffer pixels = surface.ReadPixels();
if (ownSurface)
{
mOwnedSurfaces.Add(surface);
}
do
{
SpriteFrame currentFrame = new SpriteFrame(surface);
Rectangle currentRect = new Rectangle(location, size);
bool skip = false;
currentFrame.SourceRect = currentRect;
currentFrame.SpriteSize = SpriteSize;
if (currentFrame.SourceRect.Right > pixels.Width)
{
skip = true;
}
if (currentFrame.SourceRect.Bottom > pixels.Height)
{
skip = true;
}
if (skipBlank && pixels.IsRegionBlank(currentFrame.SourceRect))
{
skip = true;
}
if (skip == false)
{
mFrames.Add(currentFrame);
}
location.X += size.Width;
if (location.X + size.Width > surface.SurfaceWidth)
{
location.X = 0;
location.Y += size.Height;
}
} while (location.Y + size.Height < surface.SurfaceHeight);
}