public override void SetSubject(Chunk xiChunk)
{
if (!(xiChunk is SteeringImageChunk))
{
mChunk = null;
}
else
{
mChunk = (SteeringImageChunk)xiChunk;
}
if (mLastSubject == mChunk)
{
return;
}
if (mChunk == null)
{
mMainForm.SteeringEditPictureBox.Image = null;
}
else
{
byte lType = mChunk.GetPixelType(mX, mY);
mMainForm.SteeringTypeLabel.Text = GetSteeringDirectionName(lType);
SetUpDropDown(lType);
RefreshView();
}
mLastSubject = xiChunk;
}
///========================================================================
/// Method : AddSteeringImage
///
/// <summary>
/// Add a new Steering Image, returning the size of the added image in bytes
/// </summary>
/// <param name="xiSteeringImage"></param>
/// <returns></returns>
///========================================================================
public int AddSteeringImage(SteeringImageChunk xiSteeringImage)
{
Chunk[] lNewSteeringArray = new Chunk[SteeringImages.mChildren.Length + 1];
Array.Copy(SteeringImages.mChildren, lNewSteeringArray, SteeringImages.mChildren.Length);
lNewSteeringArray[SteeringImages.mChildren.Length] = xiSteeringImage;
SteeringImages.mChildren = lNewSteeringArray;
return(xiSteeringImage.Data.Length);
}
private void FindUnusedSteeringImages()
{
//=======================================================================
// Get a list of all steering images to start with.
//=======================================================================
for (int i = 0; i < SteeringImages.mChildren.Length; i++)
{
if (!(SteeringImages.mChildren[i] is SteeringImageChunk))
{
continue;
}
SteeringImageChunk lSteeringImage = (SteeringImageChunk)SteeringImages.mChildren[i];
mUnusedSteeringImages[i] = lSteeringImage;
}
//=======================================================================
// Now remove all used steering images.
//=======================================================================
foreach (FlatChunk lFlat in Flats)
{
if (lFlat.TexMetaData == null)
{
continue;
}
for (int x = 0; x < lFlat.Width; x++)
{
for (int y = 0; y < lFlat.Height; y++)
{
int lSteeringId = lFlat.TexMetaData[x][y][(byte)eTexMetaDataEntries.Steering];
if (mUnusedSteeringImages.ContainsKey(lSteeringId))
{
mUnusedSteeringImages.Remove(lSteeringId);
}
}
}
}
}
public void Deserialise(Stream inStr, BinaryReader bin)
{
//header
HeaderString1 = StreamUtils.ReadASCIINullTermString(inStr);
HeaderString2 = StreamUtils.ReadASCIINullTermString(inStr);
HeaderShort1 = bin.ReadInt16();
HeaderShort2 = bin.ReadInt16();
HeaderByte = bin.ReadByte();
int lSheetCount = bin.ReadInt16();
Flats = new FlatChunk[lSheetCount];
for (int i = 0; i < lSheetCount; i++)
{
Flats[i] = new FlatChunk(bin);
}
//key waypoints
KeyWaypoints = new KeyWaypointsChunk(bin);
//now the first set of images. I don't really know
//what these do. They might be referred to by TexMetaData[7]
short steeringImgCount = bin.ReadInt16();
SteeringImageChunk[] steeringImages = new SteeringImageChunk[steeringImgCount];
for (int i = 0; i < steeringImgCount; i++)
{
steeringImages[i] = new SteeringImageChunk(i, inStr);
}
this.SteeringImages = new GroupingChunk("SteeringImages", steeringImages);
//now some camera positions:
short cameraPositionCount = bin.ReadInt16();
CameraPosChunk[] cameraPositions = new CameraPosChunk[cameraPositionCount];
for (int i = 0; i < cameraPositionCount; i++)
{
cameraPositions[i] = new CameraPosChunk(i, bin);
}
this.CameraPositions = new GroupingChunk("CameraPositions", cameraPositions);
//now the bump map prototypes. These are referred to by TexMetaData[6]
short bumpImgCount = bin.ReadInt16();
BumpImageChunk[] bumpImages = new BumpImageChunk[bumpImgCount];
for (int i = 0; i < bumpImgCount; i++)
{
bumpImages[i] = new BumpImageChunk(i, inStr);
}
this.BumpImages = new GroupingChunk("BumpImages", bumpImages);
//now trailing zeroes:
int lNextByte;
while (-1 != (lNextByte = inStr.ReadByte()))
{
if (lNextByte != 0)
{
throw new DeserialisationException(string.Format("Expecting SHET to be followed by a block of zeroes. Found {0}", lNextByte), inStr.Position);
}
TrailingZeroByteCount++;
}
}
public void CopyFrom(SteeringImageChunk xiFrom)
{
Array.Copy(xiFrom.Data, this.Data, Data.Length);
}
public bool MatchToSteeringImage(SteeringImageChunk xiSteeringImage)
{
eOrientation lOriginalOrientation = Orientation;
for (int lOrientation = (int)eOrientation.North; (int)lOrientation <= (int)eOrientation.West; lOrientation++)
{
RotateTo((eOrientation)lOrientation);
// y needs to be flipped.
if (xiSteeringImage.GetPixelType(X, (FlatChunk.STEERINGDIMENSION - 1) - Y) == (byte)Direction)
{
return true;
}
}
RotateTo(lOriginalOrientation);
return false;
}
///========================================================================
/// Method : UpdateSteeringPixel
///
/// <summary>
/// Update an individual pixel in the steering maps.
///
/// Note that we don't just blindly accept the new value supplied -
/// we assume it's relative to orientation 4, and if this square's
/// orientation is different we rotate it first.
/// </summary>
/// <param name="xiTexX"></param>
/// <param name="xiTexY"></param>
/// <param name="xiSteeringPxX"></param>
/// <param name="xiSteeringPxY"></param>
/// <param name="xiNewVal"></param>
///========================================================================
private void UpdateSteeringPixel(
int xiTexX, //the x-offset of the tex square in the grid
int xiTexY,
int xiSteeringPxX, //the x-offset of the steering pixel in the square
int xiSteeringPxY,
byte xiNewVal)
{
byte lSteeringImageIdx = mSubject.TexMetaData[xiTexX][xiTexY][(int)eTexMetaDataEntries.Steering];
byte lOrientation = mSubject.TexMetaData[xiTexX][xiTexY][(int)eTexMetaDataEntries.Orientation];
if (lSteeringImageIdx >= mSteeringImageUsageCountArray.Length)
{
MessageBox.Show("Cannot edit that steering square: it indexes a non-existant steering image. Please edit it numerically first");
return;
}
//=======================================================================
// Re-orient the target value based on the actual orientation of the
// square. Note that bytes wrap round from 0 to 255 if you add or subtract
// to give an out-of-range value.
//=======================================================================
if (lOrientation > 0 && lOrientation < 4)
{
xiNewVal -= (byte)(16 - lOrientation * 4);
if (xiNewVal >= 16)
{
xiNewVal += 16;
}
}
else if (lOrientation == 0 && xiNewVal > 0)
{
xiNewVal = (byte)(16 - xiNewVal);
}
//how to update the steering pix depends on how many tex squares
//use that steering pix
switch (mSteeringImageUsageCountArray[lSteeringImageIdx])
{
case 0:
throw new Exception("Interal error: unreachable statement!");
case 1:
SteeringImageChunk lSteeringChunk = mMainForm.CurrentLevel.GetSteeringImageById(lSteeringImageIdx);
lSteeringChunk.SetPixelType(xiSteeringPxX, xiSteeringPxY, xiNewVal);
break;
default: // i.e. > 1
SHETChunk lShet = mMainForm.CurrentLevel.SHET;
SteeringImageChunk lNewSteering = null;
int lNewSteeringId = -1;
if (lShet.UnusedSteeringImages.Count == 0)
{
//=================================================================
// Create a new steering image
//=================================================================
lNewSteeringId = lShet.SteeringImages.mChildren.Length;
lNewSteering = new SteeringImageChunk(lNewSteeringId);
int lSizeIncrease = lShet.AddSteeringImage(lNewSteering);
lShet.TrailingZeroByteCount -= lSizeIncrease;
if (lShet.TrailingZeroByteCount < 0)
{
MessageBox.Show(string.Format(
"WARNING: You have just run out of space in your level file - you will need to free up {0} bytes before you can save your changes.",
-lShet.TrailingZeroByteCount));
}
//=================================================================
// Update our usage count array to include the new steering image
//=================================================================
int[] lNewSteeringImageUsageCountArray = new int[lNewSteeringId + 1];
Array.Copy(mSteeringImageUsageCountArray, lNewSteeringImageUsageCountArray, mSteeringImageUsageCountArray.Length);
mSteeringImageUsageCountArray = lNewSteeringImageUsageCountArray;
}
else
{
//=================================================================
// Find the first unused steering image and use that
//=================================================================
foreach (DictionaryEntry lEntry in lShet.UnusedSteeringImages)
{
lNewSteeringId = (int)lEntry.Key;
lNewSteering = (SteeringImageChunk)lEntry.Value;
break;
}
lShet.UnusedSteeringImages.Remove(lNewSteeringId);
}
//===================================================================
// Update the steering image with the desired contents, and update
// the terrain square to use it
//===================================================================
SteeringImageChunk lOldSteering = mMainForm.CurrentLevel.GetSteeringImageById(lSteeringImageIdx);
lNewSteering.CopyFrom(lOldSteering);
lNewSteering.SetPixelType(xiSteeringPxX, xiSteeringPxY, xiNewVal);
mSubject.TexMetaData[xiTexX][xiTexY][(int)eTexMetaDataEntries.Steering]
= (byte)lNewSteeringId;
mSteeringImageUsageCountArray[lSteeringImageIdx]--;
mSteeringImageUsageCountArray[lNewSteeringId]++;
break;
}
}
private void SetRespawnPosition(
int x,
int y,
RespawnSetting xiRespawnSetting)
{
SHETChunk lShet = mMainForm.CurrentLevel.SHET;
// eDirection.None is used to mean 'no respawn allowed', which is coded
// on a different metadata sheet.
if (xiRespawnSetting.Direction == eDirection.None)
{
mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.Behaviour] = FlatChunk.BEHAVIOUR_DEFAULTNORESPAWN;
return;
}
else if (Array.IndexOf(sNoRespawnValues, mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.Behaviour]) >= 0)
{
mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.Behaviour] = FlatChunk.BEHAVIOUR_DEFAULT;
}
// Find a steering image which can be used for this direction, at one of the four orientations
int lSteeringId = FindSteeringImageMatchingDirection(ref xiRespawnSetting);
if (lSteeringId == int.MinValue)
{
xiRespawnSetting.RotateTo(eOrientation.North);
if (lShet.UnusedSteeringImages.Count == 0)
{
lSteeringId = lShet.SteeringImages.mChildren.Length;
SteeringImageChunk lNewSteeringImage = new SteeringImageChunk(
lSteeringId,
(byte)xiRespawnSetting.Direction);
int lSizeIncrease = lShet.AddSteeringImage(lNewSteeringImage);
lShet.TrailingZeroByteCount -= lSizeIncrease;
if (lShet.TrailingZeroByteCount < 0)
{
MessageBox.Show(string.Format(
"WARNING: You have just run out of space in your level file - you will need to free up {0} bytes before you can save your changes.",
-lShet.TrailingZeroByteCount));
}
}
else
{
foreach (DictionaryEntry lEntry in lShet.UnusedSteeringImages)
{
// Just get the first unused.
lSteeringId = (int)lEntry.Key;
SteeringImageChunk lSteeringImage = (SteeringImageChunk)lEntry.Value;
lSteeringImage.FlushToValue((byte)xiRespawnSetting.Direction);
break;
}
lShet.UnusedSteeringImages.Remove(lSteeringId);
}
}
// Use 4 instead of 0 for orientation North, because orientation 0
// reverses the directions...
mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.Orientation] =
xiRespawnSetting.Orientation == eOrientation.North ? (byte)4 : (byte)xiRespawnSetting.Orientation;
mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.Steering] = (byte)lSteeringId;
// Rotate back to north to set position (layer seven)
xiRespawnSetting.RotateTo(eOrientation.North);
byte lRespawnValue = PointToRespawnPos(new Point(xiRespawnSetting.X, xiRespawnSetting.Y));
mSubject.TexMetaData[x][y][(byte)eTexMetaDataEntries.RespawnPos] = lRespawnValue;
}
public void CopyFrom(SteeringImageChunk xiFrom)
{
Array.Copy(xiFrom.Data, this.Data, Data.Length);
}
public void Deserialise(Stream inStr, BinaryReader bin)
{
//header
HeaderString1 = StreamUtils.ReadASCIINullTermString(inStr);
HeaderString2 = StreamUtils.ReadASCIINullTermString(inStr);
HeaderShort1 = bin.ReadInt16();
HeaderShort2 = bin.ReadInt16();
HeaderByte = bin.ReadByte();
int lSheetCount = bin.ReadInt16();
Flats = new FlatChunk[lSheetCount];
for (int i = 0; i < lSheetCount; i++)
{
Flats[i] = new FlatChunk(bin);
}
//key waypoints
KeyWaypoints = new KeyWaypointsChunk(bin);
//now the first set of images. I don't really know
//what these do. They might be referred to by TexMetaData[7]
short steeringImgCount = bin.ReadInt16();
SteeringImageChunk[] steeringImages = new SteeringImageChunk[steeringImgCount];
for (int i = 0; i < steeringImgCount; i++)
{
steeringImages[i] = new SteeringImageChunk(i, inStr);
}
this.SteeringImages = new GroupingChunk("SteeringImages", steeringImages);
//now some camera positions:
short cameraPositionCount = bin.ReadInt16();
CameraPosChunk[] cameraPositions = new CameraPosChunk[cameraPositionCount];
for (int i = 0; i < cameraPositionCount; i++)
{
cameraPositions[i] = new CameraPosChunk(i, bin);
}
this.CameraPositions = new GroupingChunk("CameraPositions", cameraPositions);
//now the bump map prototypes. These are referred to by TexMetaData[6]
short bumpImgCount = bin.ReadInt16();
BumpImageChunk[] bumpImages = new BumpImageChunk[bumpImgCount];
for (int i = 0; i < bumpImgCount; i++)
{
bumpImages[i] = new BumpImageChunk(i, inStr);
}
this.BumpImages = new GroupingChunk("BumpImages", bumpImages);
//now trailing zeroes:
int lNextByte;
while (-1 != (lNextByte = inStr.ReadByte()))
{
if (lNextByte != 0) throw new DeserialisationException(string.Format("Expecting SHET to be followed by a block of zeroes. Found {0}", lNextByte), inStr.Position);
TrailingZeroByteCount++;
}
}
///========================================================================
/// Method : AddSteeringImage
///
/// <summary>
/// Add a new Steering Image, returning the size of the added image in bytes
/// </summary>
/// <param name="xiSteeringImage"></param>
/// <returns></returns>
///========================================================================
public int AddSteeringImage(SteeringImageChunk xiSteeringImage)
{
Chunk[] lNewSteeringArray = new Chunk[SteeringImages.mChildren.Length + 1];
Array.Copy(SteeringImages.mChildren, lNewSteeringArray, SteeringImages.mChildren.Length);
lNewSteeringArray[SteeringImages.mChildren.Length] = xiSteeringImage;
SteeringImages.mChildren = lNewSteeringArray;
return xiSteeringImage.Data.Length;
}
