public void Merge(SpriteFrame other)
{
this.Pixels.AddRange(other.Pixels);
if (this.Rect.IsEmpty)
{
this.Rect = other.Rect;
}
else if (!other.Rect.IsEmpty)
{
this.Rect = Rectangle.Union(this.Rect, other.Rect);
}
}
private void LoadFromImage(Bitmap bitmap)
{
var frameList = new List <SpriteFrame>();
var pixelMappings = new Dictionary <Point, SpriteFrame>();
//iterate through image and create frames
for (int y = 0; y < bitmap.Height; ++y)
{
for (int x = 0; x < bitmap.Width; ++x)
{
var currPixel = new Point(x, y);
if (bitmap.GetPixel(x, y).A < 80)
{
//if this pixel is transparent, it's not part of a region, so let's do the next one
continue;
}
var neighbours = new List <Point>(4);
neighbours.Add(new Point(x - 1, y - 1));
neighbours.Add(new Point(x, y - 1));
neighbours.Add(new Point(x + 1, y - 1));
neighbours.Add(new Point(x - 1, y));
foreach (var pixel in neighbours)
{
if (!pixelMappings.ContainsKey(pixel))
{
// This neighbour pixel is transparent, so we'll ignore it
continue;
}
if (pixelMappings.ContainsKey(currPixel))
{
var currentFrame = pixelMappings[currPixel];
if (pixelMappings[pixel] != pixelMappings[currPixel])
{
//if the pixel above and the pixel to the left are distinct regions, the current pixel means they're the same region
var neighbourFrame = pixelMappings[pixel];
//merge the regions together, removing one altogether and relabeling all the other entries in that list
currentFrame.Merge(neighbourFrame);
foreach (var pixelToMerge in neighbourFrame.Pixels)
{
pixelMappings[pixelToMerge] = currentFrame;
}
//remove the old frame entry
frameList.Remove(neighbourFrame);
}
}
else
{
//if this neighbour pixel is part of a region, the current pixel also is
pixelMappings[currPixel] = pixelMappings[pixel];
}
}
if (!pixelMappings.ContainsKey(currPixel))
{
//if the previous pixels aren't in regions, then this pixel is part of a new region we need to create
var newFrame = new SpriteFrame();
pixelMappings[currPixel] = newFrame;
frameList.Add(newFrame);
}
if (pixelMappings.ContainsKey(currPixel))
{
pixelMappings[currPixel].InsertPixel(currPixel);
}
}
}
this.frames = frameList.Where(frame => frame != null).OrderBy(frame => frame.Rect.Left / 10).OrderBy(frame => frame.Rect.Top / 10).ToList();
}
private void LoadFromImage(Bitmap bitmap)
{
var frameList = new List<SpriteFrame>();
var pixelMappings = new Dictionary<Point, SpriteFrame>();
//iterate through image and create frames
for (int y = 0; y < bitmap.Height; ++y)
{
for (int x = 0; x < bitmap.Width; ++x)
{
var currPixel = new Point(x, y);
if (bitmap.GetPixel(x, y).A < 80)
{
//if this pixel is transparent, it's not part of a region, so let's do the next one
continue;
}
var neighbours = new List<Point>(4);
neighbours.Add(new Point(x - 1, y - 1));
neighbours.Add(new Point(x, y - 1));
neighbours.Add(new Point(x + 1, y - 1));
neighbours.Add(new Point(x - 1, y));
foreach (var pixel in neighbours)
{
if (!pixelMappings.ContainsKey(pixel))
{
// This neighbour pixel is transparent, so we'll ignore it
continue;
}
if (pixelMappings.ContainsKey(currPixel))
{
var currentFrame = pixelMappings[currPixel];
if (pixelMappings[pixel] != pixelMappings[currPixel])
{
//if the pixel above and the pixel to the left are distinct regions, the current pixel means they're the same region
var neighbourFrame = pixelMappings[pixel];
//merge the regions together, removing one altogether and relabeling all the other entries in that list
currentFrame.Merge(neighbourFrame);
foreach (var pixelToMerge in neighbourFrame.Pixels)
{
pixelMappings[pixelToMerge] = currentFrame;
}
//remove the old frame entry
frameList.Remove(neighbourFrame);
}
}
else
{
//if this neighbour pixel is part of a region, the current pixel also is
pixelMappings[currPixel] = pixelMappings[pixel];
}
}
if (!pixelMappings.ContainsKey(currPixel))
{
//if the previous pixels aren't in regions, then this pixel is part of a new region we need to create
var newFrame = new SpriteFrame();
pixelMappings[currPixel] = newFrame;
frameList.Add(newFrame);
}
if (pixelMappings.ContainsKey(currPixel))
{
pixelMappings[currPixel].InsertPixel(currPixel);
}
}
}
this.frames = frameList.Where(frame => frame != null).OrderBy(frame => frame.Rect.Left / 10).OrderBy(frame => frame.Rect.Top / 10).ToList();
}
private void ChangeFrame()
{
if (this.frameListBox.SelectedIndex < 0)
{
this.currentFrame = null;
}
else
{
this.currentFrame = this.frameFinder.Frames[this.frameListBox.SelectedIndex];
this.frameImageBox.Width = currentFrame.Rect.Width;
this.frameImageBox.Height = currentFrame.Rect.Height;
this.frameNameText.Text = this.currentFrame.Name;
}
Refresh();
}
