public Animation(BinaryReader reader)
{
int magicCode;
if ((magicCode = reader.ReadInt32()) != MagicCode)
{
throw new InvalidProgramException($"Magic Code {magicCode.ToString("X08")} not recognized.");
}
TotalFramesCount = reader.ReadInt32();
int spriteSheetsCount = reader.ReadByte();
SpriteSheets = new List <string>(spriteSheetsCount);
while (spriteSheetsCount-- > 0)
{
SpriteSheets.Add(StringEncoding.GetString(reader));
}
int collisionBoxesCount = reader.ReadByte();
CollisionBoxes = new List <string>(collisionBoxesCount);
while (collisionBoxesCount-- > 0)
{
CollisionBoxes.Add(StringEncoding.GetString(reader));
}
var animationsCount = reader.ReadInt16();
Animations = new List <AnimationEntry>(animationsCount);
while (animationsCount-- > 0)
{
Animations.Add(new AnimationEntry(reader, CollisionBoxes.Count));
}
}
public void SaveChanges(BinaryWriter writer)
{
writer.Write(MagicCode);
var animationsCount = (ushort)Math.Min(Animations.Count, ushort.MaxValue);
TotalFramesCount = Animations.Take(animationsCount).Sum(x => x.Frames.Count);
writer.Write(TotalFramesCount);
var spriteSheetsCount = (byte)Math.Min(SpriteSheets.Count, byte.MaxValue);
writer.Write(spriteSheetsCount);
for (int i = 0; i < spriteSheetsCount; i++)
{
var item = SpriteSheets[i];
writer.Write(StringEncoding.GetBytes(item));
}
var collisionBoxesCount = (byte)Math.Min(CollisionBoxes.Count, byte.MaxValue);
writer.Write(collisionBoxesCount);
for (int i = 0; i < collisionBoxesCount; i++)
{
var item = CollisionBoxes[i];
writer.Write(StringEncoding.GetBytes(item));
}
writer.Write(animationsCount);
for (int i = 0; i < animationsCount; i++)
{
Animations[i].SaveChanges(writer);
}
}
private void SubWrite(BinaryWriter writer)
{
writer.Write(StringEncoding.GetBytes(Name));
writer.Write((short)Frames.Count);
writer.Write((short)Speed);
writer.Write((byte)Loop);
writer.Write((byte)Flags);
foreach (var entry in Frames)
{
entry.SaveChanges(writer);
}
}
// This part is tricky...
// Sonic Mania has a different hitboxes count. If you import an
// animation that has a different hitboxes count than the acutal
// animation, we need to handle this special case.
private void SubRead(BinaryReader reader, int cbDst, int cbSrc)
{
Name = StringEncoding.GetString(reader);
var framesCount = reader.ReadInt16();
Speed = reader.ReadInt16();
Loop = reader.ReadByte();
Flags = reader.ReadByte();
for (int i = 0; i < framesCount; i++)
{
Frames.Add(new Frame(reader, cbDst));
}
}