private int FindSteeringImageMatchingDirection(ref RespawnSetting xbRespawnSetting)
{
SHETChunk lShet = mMainForm.CurrentLevel.SHET;
for (int i = 0; i < lShet.SteeringImages.mChildren.Length; i++)
{
if (!(lShet.SteeringImages.mChildren[i] is SteeringImageChunk))
{
continue;
}
SteeringImageChunk lSteeringImage = (SteeringImageChunk)lShet.SteeringImages.mChildren[i];
if (xbRespawnSetting.MatchToSteeringImage(lSteeringImage))
{
return i;
}
}
return int.MinValue;
}
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;
}