public static void ExportGM(
string fileName,
List <IBox> boxes,
GTMP.GMFile.GMMetadata metadata,
byte[] gmllData
)
{
List <Box> bigBoxes;
List <IconImgBox> icons;
SeparateBoxes(boxes, out bigBoxes, out icons);
DebugLogger.Log(
"Project",
"Exporting as GMFile to {0} with {1} boxes, {2} item boxes, metadata ({3}), and gmllData of {4} bytes",
fileName,
bigBoxes.Count,
icons.Count,
metadata.ToString(),
(gmllData == null) ? -1 : gmllData.Length
);
// this can be possible is the user just starts drawing boxes and wants to export that
// without loading an associated image
if (gmllData == null)
{
// 4 - "GMLL"
// 4 - int for number of positions
// 0 - position data length
// 32 * 16 * 2 = 32 palettes of 16 2-byte colour
// 4 - int for number of tiles
// 0 - bytes of tile pixel data
gmllData = new byte[4 + 4 + 0 + (32 * 16 * 2) + 4 + 0];
Array.Copy(Encoding.ASCII.GetBytes("GMLL"), gmllData, 4);
}
try
{
using (MemoryStream ms = new MemoryStream(15000))
using (BinaryWriter bw = new BinaryWriter(ms))
{
// the game files never have more than four iconimgs
// in one box group, it seems to handle more than that
// perfectly fine, so we make slightly smaller files by not
// splitting them up like that
int numIcons = icons.Count;
int numBigBoxes = bigBoxes.Count;
//int curIcon = 0;
//int curBigBox = 0;
//int boxGroups = numIcons / 4;
bw.Write(Encoding.ASCII.GetBytes("GM\x3\x0"));
bw.Write(numIcons > 0 ? 1 : 0); // 0x4
if (numIcons > 0)
{
bw.Write(numIcons);
foreach (IconImgBox icon in icons)
{
icon.Serialize(bw);
}
}
// if anybody ever wants to write files with the 4 iconimg per group
// here it is, don't forget to comment out the above, or it won't work right
// if(numIcons > 0)
//{
//do
//{
// int iconsToWrite = Math.Min(4, numIcons);
// int bigBoxesToWrite = Math.Min(4, numBigBoxes);
// bw.Write((ushort)iconsToWrite);
// bw.Write((ushort)bigBoxesToWrite);
// for (int i = 0; i < iconsToWrite; ++i)
// {
// icons[0].Serialize(bw);
// icons.RemoveAt(0);
// }
// for(int i = 0; i < bigBoxesToWrite; ++i)
// {
// bigBoxes[0].Serialise(bw);
// bigBoxes.RemoveAt(0);
// }
// numIcons -= iconsToWrite;
// numBigBoxes -= bigBoxesToWrite;
//}
//while (numIcons != 0);
//}
bw.Write(numBigBoxes);
// if any box is a CarDisplay, set flag 2 in the metadata flags
// check for more than one box with the default cursor position attribute
// don't care of there aren't any
int numCars = 0;
int defaultCursors = 0;
foreach (Box b in bigBoxes)
{
if (b.Contents == GTMP.GMFile.BoxItem.CarDisplay)
{
if (++numCars > 1)
{
throw new InvalidBoxStateException("The game will not render more than 1 CarDisplay box", b);
}
}
if ((b.BehaviourAttributes & GTMP.GMFile.InfoBoxAttributes.DefaultCursorPos) != 0)
{
if (++defaultCursors > 1)
{
throw new InvalidBoxStateException("More than one box has the DefaultCursorPos BehaviourAttribute set", b);
}
}
b.Serialize(bw);
}
int screenBehaviour = (numCars != 0) ? 2 : 0;
if (metadata.BackLinkToPreviousScreen)
{
screenBehaviour = 3;
}
bw.Write((sbyte)metadata.ManufacturerID);
bw.Write((byte)screenBehaviour);
bw.Write((ushort)metadata.ScreenType);
bw.Write(metadata.BackLink);
bw.Write((int)metadata.BackgroundIndex);
bw.Write(gmllData);
bw.Flush();
ms.Position = 0;
#if DEBUG
File.WriteAllBytes(@"T:\uncompressedgm.gm", ms.ToArray());
#endif
MemoryStream compressed = Compress.GZipCompressStream(ms);
byte[] compressedBytes = compressed.ToArray();
File.WriteAllBytes(fileName, compressedBytes);
}
}
catch (InvalidBoxStateException ibse)
{
MainForm.DisplayMsgBox(
System.Windows.Forms.MessageBoxButtons.OK,
System.Windows.Forms.MessageBoxIcon.Error,
ibse.Message
);
}
}
