/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static Clip ProcessAnimation(
AnimationContent animation,
Dictionary <string, int> boneMap,
ClipData clipData)
{
List <Keyframe> keyframes = new List <Keyframe>();
Dictionary <TimeSpan, AnimationControlEvents> controlEvents = new Dictionary <TimeSpan, AnimationControlEvents>();
bool frameTimesFilled = false;
TimeSpan[] frameTimes = new TimeSpan[clipData.LastFrame - clipData.FirstFrame + 1];
TimeSpan syncTime = TimeSpan.Zero;
// For each input animation channel.
foreach (KeyValuePair <string, AnimationChannel> channel in animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
// string.Format("Found animation for bone '{0}', which is not part of the skeleton.", channel.Key));
// We can just ignore these channels.
continue;
}
if (!frameTimesFilled)
{
// I guess the frames in the ClipData are specified with a 0-based index?
TimeSpan startTime = channel.Value[clipData.FirstFrame].Time;
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
frameTimes[i - clipData.FirstFrame] = channel.Value[i].Time - startTime;
// Also, let's get the times for the events:
foreach (KeyValuePair <int, AnimationControlEvents> ace in clipData.Events)
{
if (ace.Key == i)
{
controlEvents.Add(frameTimes[i - clipData.FirstFrame], ace.Value);
}
}
// Don't forget to convert the sync frame offset into a time:
if (clipData.SyncFrameOffset == i - clipData.FirstFrame)
{
syncTime = frameTimes[i - clipData.FirstFrame];
}
}
if (controlEvents.Count != clipData.Events.Count)
{
throw new InvalidContentException("The time index of some control events could not be determined.");
}
frameTimesFilled = true;
}
// Convert the keyframe data.
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
Matrix boneTransform;
if (channel.Value.Count <= i)
{
boneTransform = channel.Value[channel.Value.Count - 1].Transform;
}
else
{
boneTransform = channel.Value[i].Transform;
}
keyframes.Add(new Keyframe(boneIndex, frameTimes[i - clipData.FirstFrame], boneTransform));
}
}
if (keyframes.Count == 0)
{
throw new InvalidContentException("Animation has no keyframes.");
}
TimeSpan framePeriod = TimeSpan.Zero;
if (keyframes.Count > 1)
{
framePeriod = keyframes[1].Time - keyframes[0].Time;
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
TimeSpan duration = keyframes[keyframes.Count - 1].Time + framePeriod;
if (duration <= TimeSpan.Zero)
{
throw new InvalidContentException("Animation has a zero duration.");
}
return(new Clip(duration, keyframes, clipData.Loopable, controlEvents, syncTime));
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static Clip ProcessAnimation(
AnimationContent animation,
Dictionary<string, int> boneMap,
ClipData clipData)
{
List<Keyframe> keyframes = new List<Keyframe>();
Dictionary<TimeSpan, AnimationControlEvents> controlEvents = new Dictionary<TimeSpan,AnimationControlEvents>();
bool frameTimesFilled = false;
TimeSpan[] frameTimes = new TimeSpan[clipData.LastFrame - clipData.FirstFrame + 1];
TimeSpan syncTime = TimeSpan.Zero;
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
// string.Format("Found animation for bone '{0}', which is not part of the skeleton.", channel.Key));
// We can just ignore these channels.
continue;
}
if (!frameTimesFilled)
{
// I guess the frames in the ClipData are specified with a 0-based index?
TimeSpan startTime = channel.Value[clipData.FirstFrame].Time;
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
frameTimes[i - clipData.FirstFrame] = channel.Value[i].Time - startTime;
// Also, let's get the times for the events:
foreach (KeyValuePair<int, AnimationControlEvents> ace in clipData.Events)
{
if (ace.Key == i)
{
controlEvents.Add(frameTimes[i - clipData.FirstFrame], ace.Value);
}
}
// Don't forget to convert the sync frame offset into a time:
if (clipData.SyncFrameOffset == i - clipData.FirstFrame)
syncTime = frameTimes[i - clipData.FirstFrame];
}
if (controlEvents.Count != clipData.Events.Count)
throw new InvalidContentException("The time index of some control events could not be determined.");
frameTimesFilled = true;
}
// Convert the keyframe data.
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
Matrix boneTransform;
if (channel.Value.Count <= i)
{
boneTransform = channel.Value[channel.Value.Count - 1].Transform;
}
else
{
boneTransform = channel.Value[i].Transform;
}
keyframes.Add(new Keyframe(boneIndex, frameTimes[i - clipData.FirstFrame], boneTransform));
}
}
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
TimeSpan framePeriod = TimeSpan.Zero;
if (keyframes.Count > 1)
framePeriod = keyframes[1].Time - keyframes[0].Time;
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
TimeSpan duration = keyframes[keyframes.Count - 1].Time + framePeriod;
if (duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new Clip(duration, keyframes, clipData.Loopable, controlEvents, syncTime);
}