public void Read(BinaryReader reader)
{
interpolation_type = reader.ReadUInt16();
global_sequence = reader.ReadUInt16();
timestamps = new M2Array(reader, 0);
values = new M2Array(reader, 0);
}
// Number of cameras not used. Multiple cameras never used in 7.1.5
static void readCamera(M2Camera cam, BinaryReader reader, CinematicCameraRecord dbcentry)
{
List <FlyByCamera> cameras = new List <FlyByCamera>();
List <FlyByCamera> targetcam = new List <FlyByCamera>();
Vector4 dbcData = new Vector4(dbcentry.Origin.X, dbcentry.Origin.Y, dbcentry.Origin.Z, dbcentry.OriginFacing);
// Read target locations, only so that we can calculate orientation
for (uint k = 0; k < cam.target_positions.timestamps.number; ++k)
{
// Extract Target positions
reader.BaseStream.Position = cam.target_positions.timestamps.offset_elements;
M2Array targTsArray = reader.Read <M2Array>();
reader.BaseStream.Position = targTsArray.offset_elements;
uint[] targTimestamps = reader.ReadArray <uint>(targTsArray.number);
reader.BaseStream.Position = cam.target_positions.values.offset_elements;
M2Array targArray = reader.Read <M2Array>();
reader.BaseStream.Position = targArray.offset_elements;
M2SplineKey[] targPositions = new M2SplineKey[targArray.number];
for (var i = 0; i < targArray.number; ++i)
{
targPositions[i] = new M2SplineKey(reader);
}
// Read the data for this set
for (uint i = 0; i < targTsArray.number; ++i)
{
// Translate co-ordinates
Vector3 newPos = translateLocation(dbcData, cam.target_position_base, targPositions[i].p0);
// Add to vector
FlyByCamera thisCam = new FlyByCamera();
thisCam.timeStamp = targTimestamps[i];
thisCam.locations = new Vector4(newPos.X, newPos.Y, newPos.Z, 0.0f);
targetcam.Add(thisCam);
}
}
// Read camera positions and timestamps (translating first position of 3 only, we don't need to translate the whole spline)
for (uint k = 0; k < cam.positions.timestamps.number; ++k)
{
// Extract Camera positions for this set
reader.BaseStream.Position = cam.positions.timestamps.offset_elements;
M2Array posTsArray = reader.Read <M2Array>();
reader.BaseStream.Position = posTsArray.offset_elements;
uint[] posTimestamps = reader.ReadArray <uint>(posTsArray.number);
reader.BaseStream.Position = cam.positions.values.offset_elements;
M2Array posArray = reader.Read <M2Array>();
reader.BaseStream.Position = posArray.offset_elements;
M2SplineKey[] positions = new M2SplineKey[posTsArray.number];
for (var i = 0; i < posTsArray.number; ++i)
{
positions[i] = new M2SplineKey(reader);
}
// Read the data for this set
for (uint i = 0; i < posTsArray.number; ++i)
{
// Translate co-ordinates
Vector3 newPos = translateLocation(dbcData, cam.position_base, positions[i].p0);
// Add to vector
FlyByCamera thisCam = new FlyByCamera();
thisCam.timeStamp = posTimestamps[i];
thisCam.locations = new Vector4(newPos.X, newPos.Y, newPos.Z, 0);
if (targetcam.Count > 0)
{
// Find the target camera before and after this camera
// Pre-load first item
FlyByCamera lastTarget = targetcam[0];
FlyByCamera nextTarget = targetcam[0];
for (int j = 0; j < targetcam.Count; ++j)
{
nextTarget = targetcam[j];
if (targetcam[j].timeStamp > posTimestamps[i])
{
break;
}
lastTarget = targetcam[j];
}
float x = lastTarget.locations.X;
float y = lastTarget.locations.Y;
float z = lastTarget.locations.Z;
// Now, the timestamps for target cam and position can be different. So, if they differ we interpolate
if (lastTarget.timeStamp != posTimestamps[i])
{
uint timeDiffTarget = nextTarget.timeStamp - lastTarget.timeStamp;
uint timeDiffThis = posTimestamps[i] - lastTarget.timeStamp;
float xDiff = nextTarget.locations.X - lastTarget.locations.X;
float yDiff = nextTarget.locations.Y - lastTarget.locations.Y;
float zDiff = nextTarget.locations.Z - lastTarget.locations.Z;
x = lastTarget.locations.X + (xDiff * ((float)timeDiffThis / timeDiffTarget));
y = lastTarget.locations.Y + (yDiff * ((float)timeDiffThis / timeDiffTarget));
z = lastTarget.locations.Z + (zDiff * ((float)timeDiffThis / timeDiffTarget));
}
float xDiff1 = x - thisCam.locations.X;
float yDiff1 = y - thisCam.locations.Y;
thisCam.locations.W = (float)Math.Atan2(yDiff1, xDiff1);
if (thisCam.locations.W < 0)
{
thisCam.locations.W += 2 * MathFunctions.PI;
}
}
cameras.Add(thisCam);
}
}
FlyByCameraStorage[dbcentry.Id] = cameras;
}