public static Obj FromUshort(ushort attr0, ushort attr1, ushort attr2)
{
Obj obj = new Obj();
// Attribute 0
obj.CoordY = (sbyte) ((attr0 >> 00) & 0x00FF);
obj.RotSca = ((attr0 >> 08) & 0x0001) == 1;
obj.Mode = (ObjMode) ((attr0 >> 10) & 0x0003);
obj.IsMosaic = ((attr0 >> 12) & 0x0001) == 1;
obj.PaletteMode = (PaletteMode)((attr0 >> 13) & 0x0001);
obj.Shape = (ObjShape) ((attr0 >> 14) & 0x0003);
// Attribute 1
ushort tempX = (ushort)((attr1 >> 00) & 0x001FF); // 9-bit signed (two's complement) value
if ((tempX >> 8) == 0)
obj.CoordX = (short)tempX;
else
obj.CoordX = (short)(((tempX ^ 0x1FF) + 1) * -1); // (9-bit negation) + 1
obj.SizeMode = (byte) ((attr1 >> 14) & 0x0003);
// Attribute 2
obj.tileNumber = (ushort)((attr2 >> 00) & 0x003FF); // I don't use the property since is the raw value
obj.ObjPriority = (byte) ((attr2 >> 10) & 0x0003);
obj.PaletteIndex = (byte) ((attr2 >> 12) & 0x000F);
// Rotation / Scaling mode
if (obj.RotSca) {
obj.DoubleSize = ((attr0 >> 09) & 0x0001) == 1;
obj.RotScaGroup = (byte)((attr1 >> 09) & 0x001F);
} else {
obj.IsDisabled = ((attr0 >> 09) & 0x0001) == 1;
obj.HorizontalFlip = ((attr1 >> 12) & 0x0001) == 1;
obj.VerticalFlip = ((attr1 >> 13) & 0x0001) == 1;
}
return obj;
}
private void CreateObjects(EmguImage frame, List<Obj> objList, int x, int y, int maxHeight)
{
// Go to first non-transparent pixel
int newX = SearchNoTransparentPoint(frame, 1, x, y, yEnd: y + maxHeight);
int newY = SearchNoTransparentPoint(frame, 0, x, y, yEnd: y + maxHeight);
if (newY == -1 || newX == -1)
return;
int diffX = newX - x;
diffX -= diffX % 8;
x = diffX + x;
int diffY = newY - y;
diffY -= diffY % 8;
y = diffY + y;
int width = 0;
int height = 0;
this.GetObjectSize(frame, x, y, frame.Width, maxHeight, out width, out height);
if (width != 0 && height != 0) {
// Create object
Obj obj = new Obj();
obj.Id = (ushort)objList.Count;
obj.CoordX = (short)(x - 256);
obj.CoordY = (sbyte)(y - 128);
obj.SetSize(width, height);
objList.Add(obj);
} else {
// If everything is transparent
width = this.splitMode[0, 1]; // Max width
height = this.splitMode[0, 1]; // Max height
}
// Go to right
if (frame.Width - (x + width) > 0)
this.CreateObjects(frame, objList, x + width, y, height);
// Go to down
int newMaxHeight = maxHeight - (height + diffY);
if (newMaxHeight > 0)
this.CreateObjects(frame, objList, x, y + height, newMaxHeight);
}
public void SetObjects(Obj[] objs)
{
this.objects = (Obj[])objs.Clone();
}
protected override void ReadData(Stream strIn)
{
BinaryReader br = new BinaryReader(strIn);
long blockStart = strIn.Position;
ushort numFrames = br.ReadUInt16();
this.TypeFrame = br.ReadUInt16();
uint frameOffset = br.ReadUInt32();
this.TileSize = 1 << (5 + (int)(br.ReadUInt32() & 0xFF));
int frameInfoSize = ((this.TypeFrame & 1) != 0) ? 0x10 : 0x08;
this.UnknownOffset1 = br.ReadUInt32(); // Offset to unknown block
this.Unknown = br.ReadUInt32(); // Unknown
this.UnknownOffset2 = br.ReadUInt32(); // Unknown offset
#if VERBOSE
if (this.UnknownOffset1 != 0)
Console.WriteLine("\t* UnknownOffset1 -> {0:x8}", this.UnknownOffset1);
if (this.Unknown != 0)
Console.WriteLine("\t* Unknown -> {0:x8}", this.Unknown);
if (this.UnknownOffset2 != 0)
Console.WriteLine("\t* UnknownOffset2 -> {0:X8}", this.UnknownOffset2);
#endif
this.Frames = new Frame[numFrames];
for (int i = 0; i < numFrames; i++) {
strIn.Position = blockStart + frameOffset + i * frameInfoSize;
Frame frame = new Frame();
frame.TileSize = this.TileSize;
ushort numObjs = br.ReadUInt16();
ushort areaInfo = br.ReadUInt16();
uint objOffset = br.ReadUInt32();
// Get area info
bool squareSizeFlag = ((areaInfo >> 11) & 1) == 0;
Rectangle frameArea = new Rectangle();
if ((this.TypeFrame & 1) != 0 && !squareSizeFlag) {
short xend = br.ReadInt16();
short yend = br.ReadInt16();
short xstart = br.ReadInt16();
short ystart = br.ReadInt16();
frameArea.Location = new Point(xstart, ystart);
frameArea.Width = xend - xstart;
frameArea.Height = yend - ystart;
} else if (!squareSizeFlag) {
throw new FormatException("Obj area info is square but areaInfo is set");
} else {
int squareSize = (areaInfo & 0x3F) << 2;
squareSize *= 2;
frameArea.Width = squareSize;
frameArea.Height = squareSize;
}
// Read Objs
strIn.Position = blockStart + frameOffset + numFrames * frameInfoSize + objOffset;
Obj[] objs = new Obj[numObjs];
for (int j = 0; j < numObjs; j++) {
objs[j] = Obj.FromUshort(br.ReadUInt16(), br.ReadUInt16(), br.ReadUInt16());
objs[j].Id = (ushort)j;
}
// TODO: Detect frame position for square size
frame.SetObjects(objs);
frame.VisibleArea = frameArea;
this.Frames[i] = frame;
}
}
