private ImageState generateSpriteState(int frames, int directions, List<int> delays)
{
ImageState state = new ImageState();
state.frames = new List<ImageFrame>();
// Extract the width of the full image(not the tiles)
int base_width = dmi_width;
for(int framei = 0; framei < frames; framei++)
{
// Prepare a new frame to insert into our state
ImageFrame frame = new ImageFrame();
frame.directions = new Dictionary<int,System.Drawing.Bitmap>();
// This array simply maps tile indices to directions.
// For example, the first tile in the frame would be the direction SOUTH.
int[] dirs = new int[] {Directions.SOUTH, Directions.NORTH, Directions.EAST, Directions.WEST, Directions.SOUTHEAST, Directions.SOUTHWEST, Directions.NORTHEAST, Directions.NORTHWEST};
if(directions != 1 && directions != 4 && directions != 8) {
throw new IOException(".DMI metadata malformed");
}
// Go over all directions and insert them into our frame
for(int i=0; i < directions; i++) {
// Find out which direction the next tile will be
int next_dir = dirs[i];
// If we're at the end of the buffer on the right, go to the next line
if(pixel_x >= base_width)
{
pixel_x = 0;
pixel_y = pixel_y + height;
}
System.Drawing.Bitmap image;
image = img.Copy(new Rectangle(pixel_x, pixel_y, width, height)).ToBitmap();
// Graphics.FromImage(new_img).DrawImage(image, 0,0, , GraphicsUnit.Pixel);
frame.directions.Add(next_dir, image);
pixel_x += width; // push to the next "row"
}
// Set the proper delay of the frame
frame.delay = delays[framei];
// Add the frame to our state
state.frames.Add(frame);
}
return state;
}
public void parse(FileStream source)
{
img = new FreeImageBitmap(source);
dmi_width = img.Width;
dmi_height = img.Height;
MetadataModel model = img.Metadata.List[0];
string metaData = model.List[0].Value.ToString();
List <ImageInfoBlock> nodes = praseMetaData(metaData);
String state_name = "";
List <int> state_delay = new List <int>();
int state_frames = 0;
int state_directions = 0;
Boolean had_state = false;
this.states = new Dictionary <String, ImageState>();
// Enu<ImageInfoBlock> it = nodes.GetEnumerator();
for (int i = 0; i < nodes.Count; i++)
{
ImageInfoBlock block = nodes[i];
if (block.key == "dirs")
{
Int32.TryParse(block.value, out state_directions);
}
else if (block.key == "frames")
{
Int32.TryParse(block.value, out state_frames);
}
else if (block.key == "delay")
{
foreach (String S in block.value.Split(','))
{
int x;
Int32.TryParse(S, out x);
state_delay.Add(x);
}
}
else if (block.key == "version")
{
continue;
}
else if (block.key == "width")
{
Int32.TryParse(block.value, out width);
}
else if (block.key == "height")
{
Int32.TryParse(block.value, out height);
}
if (had_state)
{
if (block.key == "state" || i == nodes.Count - 1)
{
if (state_frames == 0 || state_directions == 0)
{
throw new IOException(".DMI metadata malformed");
}
if (state_delay.Count == 0)
{
while (state_delay.Count < state_frames)
{
state_delay.Add(1);
}
}
if (state_delay.Count != state_frames)
{
throw new IOException(".DMI metadata malformed");
}
ImageState state = generateSpriteState(state_frames, state_directions, state_delay);
// intern state_name to make string comparison more efficient
if (!states.ContainsKey(state_name))
{
states.Add(state_name, state); // add state to the sprite
}
state_frames = 0;
state_directions = 0;
state_delay.Clear();
had_state = false;
}
}
if (block.key == "state")
{
state_name = block.value.Substring(1, block.value.Length - 2);
had_state = true;
}
}
}