public SmdTimeline Clone(SmdSkeleton targetSkeleton)
{
SmdTimeline clone = new SmdTimeline();
clone.TargetSkeleton = targetSkeleton;
clone.ExpectedFrameRate = ExpectedFrameRate;
foreach (SmdTimelineFrame frame in ExplicitFrames)
{
SmdTimelineFrame clonedFrame = frame.Clone();
clonedFrame.Timeline = clone;
clone.ExplicitFrames.Add(clonedFrame);
}
return(clone);
}
public SmdData(string sourceFilename, string[] rawLines)
{
SourceFilename = sourceFilename;
// Associate line numbers with source data
List <NumberedLine> lines = new List <NumberedLine>();
for (int i = 0; i < rawLines.Length; i++)
{
lines.Add(new NumberedLine(rawLines[i], i + 1));
}
// Strip comments and empty lines
lines.RemoveAll(l => l.Text.TrimStart().StartsWith("//") || string.IsNullOrWhiteSpace(l.Text));
if (lines.Count == 0)
{
throw new Exception("SMD file has no data.");
}
// Header check
// This is extremely minimal for Valve's SMD format. It's just the "version" tag.
string[] rawVersionLine = lines[0].Text.Trim().Split(' ');
if (string.IsNullOrWhiteSpace(rawVersionLine[0]) || rawVersionLine[0] != "version")
{
throw new Exception(ErrInvalid(lines[0].LineNumber, "\"version\" tag is missing."));
}
if (rawVersionLine.Length != 2)
{
throw new Exception(ErrInvalid(lines[0].LineNumber, "\"version\" tag is invalid."));
}
if (rawVersionLine[1] != "1")
{
throw new Exception(ErrUnknown(lines[0].LineNumber, "\"version\" has a value of " + rawVersionLine[1] + ", expected 1."));
}
// Top-level data block structure
List <NumberedLine> dbNodes = null;
List <NumberedLine> dbSkeleton = null;
// We don't need the "triangles" or "vertexanimation" data blocks
// Extract relevant data blocks
bool inBlock = false;
string inBlockName = null;
int inBlockStart = -1;
for (int i = 1; i < lines.Count; i++)
{
NumberedLine line = lines[i];
string linetext = line.Text.Trim();
if (string.IsNullOrWhiteSpace(linetext))
{
continue;
}
if (linetext == "nodes" || linetext == "skeleton" || linetext == "vertexanimation")
{
if (inBlock)
{
throw new Exception(ErrInvalid(line.LineNumber, "New data block \"" + linetext + "\" starts in the middle of the previous \"" + inBlockName + "\" data block."));
}
inBlock = true;
inBlockName = linetext;
inBlockStart = i;
}
if (linetext == "end")
{
if (inBlock)
{
inBlock = false;
if (inBlockName == "nodes")
{
dbNodes = lines.GetRange(inBlockStart, i - inBlockStart + 1);
}
else if (inBlockName == "skeleton")
{
dbSkeleton = lines.GetRange(inBlockStart, i - inBlockStart + 1);
}
}
else
{
throw new Exception(ErrInvalid(line.LineNumber, "Unexpected \"end\" keyword outside of any data blocks."));
}
}
}
// Ensure data blocks exist
if (dbNodes == null)
{
throw new Exception(ErrInvalid("\"nodes\" data block is missing."));
}
if (dbSkeleton == null)
{
throw new Exception(ErrInvalid("\"skeleton\" data block is missing."));
}
// And that they arent empty
if (dbNodes.Count == 2)
{
throw new Exception(ErrInvalid(dbNodes[0].LineNumber, "\"nodes\" data block is empty."));
}
if (dbSkeleton.Count == 2)
{
throw new Exception(ErrInvalid(dbSkeleton[0].LineNumber, "\"skeleton\" data block is empty."));
}
///// Process node block to build skeleton hierarchy
// Bone definition order does NOT have to be sequential, so we'll set up the parenting AFTER discovering all bones
// Crowbar always writes bones sequentially, but other software might be lazy and write them out of order
List <SmdBone> bones = new List <SmdBone>();
for (int i = 1; i < dbNodes.Count - 1; i++)
{
NumberedLine line = dbNodes[i];
string linetext = line.Text.Trim();
string[] linetextParts = linetext.Split(' '); // This is ok because source engine bones cannot have spaces in their names
if (linetextParts.Length != 3)
{
throw new Exception(ErrInvalid(line.LineNumber, "Bone definition is an invalid format."));
}
int boneID = -1;
if (!int.TryParse(linetextParts[0], out boneID))
{
throw new Exception(ErrInvalid(line.LineNumber, "Bone definition is invalid; bone ID is not a valid number."));
}
string boneName = linetextParts[1].Trim('"'); // Trim the " quotes that always present but useless
if (string.IsNullOrWhiteSpace(boneName))
{
throw new Exception(ErrInvalid(line.LineNumber, "Bone definition is invalid; bone name is empty."));
}
if (bones.Where(b => b.Name == boneName).ToList().Count > 0)
{
throw new Exception(ErrInvalid(line.LineNumber, "Bone definition is invalid; duplicate bone name."));
}
int boneParentID = -2;
if (!int.TryParse(linetextParts[2], out boneParentID))
{
throw new Exception(ErrInvalid(line.LineNumber, "Bone definition is invalid; bone parent ID is not a valid number."));
}
SmdBone bone = new SmdBone(boneID, boneName, boneParentID);
bone.SmdSourceLine = line;
bones.Add(bone);
}
// Find and verify the root bone
List <SmdBone> rootBones = bones.Where(b => b.ParentID == -1).ToList();
if (rootBones.Count > 1)
{
throw new Exception(ErrInvalid(rootBones[1].SmdSourceLine.LineNumber, "Invalid skeleton hierarchy. Only be one root bone can exist."));
}
SmdBone rootBone = rootBones[0];
// Create hierarchy
List <SmdBone> orphanBonesLeft = new List <SmdBone>(bones);
orphanBonesLeft.Remove(rootBone);
void buildHierarchy(SmdBone self, List <SmdBone> orphanBones)
{
foreach (SmdBone orphanBone in orphanBones.ToList()) // Iterate a copy
{
if (orphanBone == self)
{
continue;
}
if (orphanBone.ParentID == self.ID)
{
self.Children.Add(orphanBone);
orphanBone.Parent = self;
orphanBones.Remove(orphanBone);
buildHierarchy(orphanBone, orphanBones);
}
}
}
buildHierarchy(rootBone, orphanBonesLeft);
if (orphanBonesLeft.Count > 0)
{
string message = "\n";
foreach (SmdBone bone in orphanBonesLeft)
{
message += "Orphaned bone \"" + bone.Name + "\" (ID: " + bone.ID + "). No bone with parent ID " + bone.ParentID + " exists.\n";
}
throw new Exception(ErrInvalid(message.TrimEnd('\n')));
}
// Create skeleton object
Skeleton = new SmdSkeleton(bones, rootBone);
///// Process skeleton block to find animations frames
List <List <NumberedLine> > timeBlocks = new List <List <NumberedLine> >();
List <NumberedLine> buildTimeBlock = null;
bool startedFirstBlockBuild = false;
int lastTimeNumber = int.MinValue;
for (int i = 1; i < dbSkeleton.Count - 1; i++)
{
NumberedLine line = dbSkeleton[i];
string linetext = line.Text.Trim();
string[] linetextParts = linetext.Split(' ');
if (linetext.Length >= 4 && linetext.Substring(0, 4) == "time")
{
if (linetextParts.Length != 2)
{
throw new Exception(ErrInvalid(line.LineNumber, "Invalid \"time\" block header."));
}
int timeNumber = -1;
if (!int.TryParse(linetextParts[1], out timeNumber))
{
throw new Exception(ErrInvalid(line.LineNumber, "\"time\" block number is not a valid number."));
}
if (timeNumber <= lastTimeNumber)
{
throw new Exception(ErrInvalid(line.LineNumber, "\"time\" block number is not sequential to the previous time block."));
}
lastTimeNumber = timeNumber;
if (!startedFirstBlockBuild)
{
buildTimeBlock = new List <NumberedLine>();
startedFirstBlockBuild = true;
}
else
{
//if (buildTimeBlock.Count < 2) // aka just the "time" header and no actual bone pose data
// throw new Exception(ErrInvalid(line.LineNumber, "Empty \"time\" block."));
// This might actually be valid SMD. The Valve wiki isn't clear about this case.
timeBlocks.Add(buildTimeBlock);
buildTimeBlock = new List <NumberedLine>();
}
}
buildTimeBlock.Add(line);
}
timeBlocks.Add(buildTimeBlock);
// Create timeline for animation
Timeline = new SmdTimeline(Skeleton);
// Add all explicit frames
foreach (List <NumberedLine> timeBlock in timeBlocks)
{
SmdTimelineFrame frame = new SmdTimelineFrame();
NumberedLine header = timeBlock[0];
string[] headertextParts = header.Text.Trim().Split(' ');
frame.FrameTime = (float)int.Parse(headertextParts[1]);
for (int i = 1; i < timeBlock.Count; i++)
{
NumberedLine boneline = timeBlock[i];
string bonelinetext = boneline.Text.Trim();
string[] bonelinetextParts = bonelinetext.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (bonelinetextParts.Length != 7)
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Bone pose data is an invalid format."));
}
int boneID = -1;
if (!int.TryParse(bonelinetextParts[0], out boneID))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone ID is not a valid number."));
}
float bonePosX = 0f;
if (!float.TryParse(bonelinetextParts[1], out bonePosX))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone X translation is not a valid number."));
}
float bonePosY = 0f;
if (!float.TryParse(bonelinetextParts[2], out bonePosY))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone Y translation is not a valid number."));
}
float bonePosZ = 0f;
if (!float.TryParse(bonelinetextParts[3], out bonePosZ))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone Z translation is not a valid number."));
}
float boneRotX = 0f;
if (!float.TryParse(bonelinetextParts[4], out boneRotX))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone X rotation is not a valid number."));
}
float boneRotY = 0f;
if (!float.TryParse(bonelinetextParts[5], out boneRotY))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone Y rotation is not a valid number."));
}
float boneRotZ = 0f;
if (!float.TryParse(bonelinetextParts[6], out boneRotZ))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; bone Z rotation is not a valid number."));
}
SmdBonePose bonePose = new SmdBonePose();
SmdBone targetBone = null;
if (!Skeleton.BoneByID.TryGetValue(boneID, out targetBone))
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Invalid bone pose; no bone exists with the ID " + boneID + "."));
}
foreach (SmdBonePose existingBonePose in frame.ExplicitBonePoses)
{
if (existingBonePose.Bone == targetBone)
{
throw new Exception(ErrInvalid(boneline.LineNumber, "Duplicate bone pose."));
}
}
bonePose.Bone = targetBone;
bonePose.Position = new Vector3(bonePosX, bonePosY, bonePosZ);
bonePose.Rotation = new Vector3(boneRotX, boneRotY, boneRotZ);
frame.AddBonePose(bonePose);
}
Timeline.AddFrame(frame); // Frames will be stored sequentially as they were defined in the SDM and any pose interpolation will occur on demand if needed
}
Print("- " + bones.Count + " bones, " + Timeline.ExplicitFrames.Count + " frames of animation", 1);
}