private CostumeAnimation LoadAnimation(ScummBinaryReader reader, string resourceId, int animationIndex, long startOffset, ushort[] animationOffsets, ushort[] limbOffsets, ushort animationCommandOffset, byte[] palette, Color[] roomPalette, bool containsRedirection, bool mirror)
{
if (animationOffsets[animationIndex] == 0)
{
return(null);
}
reader.BaseStream.Position = startOffset + animationOffsets[animationIndex];
var costumeAnimation = new CostumeAnimation();
costumeAnimation.IsMirrored = mirror;
var currentFrameIndex = 0;
var framesCount = 0;
var startAnimationPosition = reader.BaseStream.Position;
while (currentFrameIndex < framesCount || currentFrameIndex == 0)
{
var mask = reader.ReadUInt16();
var costumeFrame = new CostumeFrame();
var imageData = new LayeredImageData();
var i = 0;
do
{
if ((mask & 0x8000) != 0)
{
var startAnimationCommandOffset = reader.ReadUInt16();
if (startAnimationCommandOffset != 0xFFFF)
{
var flags = reader.ReadByte();
var loop = flags & 0x8000;
var endFrame = flags & 0x7F;
if (currentFrameIndex == 0 && framesCount == 0)
{
framesCount = Math.Max(framesCount, endFrame) + 1;
}
var oldStreamPosition = reader.BaseStream.Position;
reader.BaseStream.Position = startOffset + animationCommandOffset + startAnimationCommandOffset + Math.Min(currentFrameIndex, endFrame);
var animationCommandValue = reader.ReadByte();
if (animationCommandValue == 0x71)
{
// TODO: Handle special commands (sounds, etc.)
}
else if (animationCommandValue == 0x7A)
{
// TODO: Implement start command
}
else if (animationCommandValue == 0x79)
{
// TODO: Implement stopped command
}
else
{
reader.BaseStream.Position = startOffset + limbOffsets[i] + animationCommandValue * 2;
var pictOffset = reader.ReadUInt16();
reader.BaseStream.Position = startOffset + pictOffset;
var width = reader.ReadUInt16();
var height = reader.ReadUInt16();
var relativeX = reader.ReadInt16();
var relativeY = reader.ReadInt16();
var movementX = reader.ReadInt16();
var movementY = reader.ReadInt16();
if (containsRedirection)
{
var redirectionLimb = reader.ReadByte();
var redirectionPict = reader.ReadByte();
}
imageData.CreateLayer(width, height, new Vector2(relativeX, relativeY));
DecodeImageData(reader, imageData, width, height, palette, roomPalette);
}
reader.BaseStream.Position = oldStreamPosition;
}
}
mask = (ushort)(mask << 1);
i++;
} while ((mask & 0xFFFF) != 0);
costumeFrame.FrameType = CostumeFrameType.Frame;
// TODO: Fill offset and movement vector
var textureData = imageData.GetBytes();
costumeFrame.Data = new Microsoft.Xna.Framework.Graphics.Texture2D(this.graphicsDevice, imageData.Width, imageData.Height, false, Microsoft.Xna.Framework.Graphics.SurfaceFormat.Color);
costumeFrame.Data.SetData(textureData);
costumeAnimation.Frames.Add(costumeFrame);
if (!Directory.Exists("DebugAnims\\" + resourceId))
{
Directory.CreateDirectory("DebugAnims\\" + resourceId);
}
costumeFrame.Data.SaveAsPng(File.Create(string.Format("DebugAnims\\" + resourceId + "\\Anim{0}_{1}.png", animationIndex, currentFrameIndex)), costumeFrame.Data.Width, costumeFrame.Data.Height);
reader.BaseStream.Position = startAnimationPosition;
currentFrameIndex++;
}
return(costumeAnimation);
}
private void DecodeImageData(ScummBinaryReader reader, LayeredImageData imageData, int width, int height, byte[] palette, Color[] roomPalette)
{
byte shift;
byte mask;
if (palette.Length == 16)
{
shift = 4;
mask = 0xF;
}
else
{
shift = 3;
mask = 0x7;
}
int x = 0;
int y = 0;
bool end = false;
while (end == false)
{
var rep = reader.ReadByte();
var colorPaletteIndex = (byte)(rep >> shift);
Color color = Color.Black;
var roomColor = roomPalette[palette[colorPaletteIndex]];
color.R = roomColor.R;
color.G = roomColor.G;
color.B = roomColor.B;
rep &= mask;
if (rep == 0)
{
rep = reader.ReadByte();
}
while (rep > 0)
{
if (colorPaletteIndex != 0)
{
imageData.SetPixel(x, y, color);
}
rep--;
y++;
if (y >= height)
{
y = 0;
x++;
if (x >= width)
{
end = true;
}
}
}
}
}
