// that means the invoker must have info on the animObj you're setting they keyframe 2
// in the keyframes, there are several things going on
// we need to invoke this function each time that
// a keyframe is generated from these times
// so that we can place keyframes, and reference the
// beizer curve key frame structues // control points
// these are all position curves
// 1st -> during initialization of the clip / track, generate a Beizer Path (quadratic)
// 2nd -> during intialization of the clip / track, generate a Linear Path (linear)
// keyframe generator
// 1st --> create a keyframe from the curve
// 2nd --> keyframe should have a reference to the next control point
// 3rd --> invoke generate points from t0 to t1
// 4th --> add those points on the path
// 5th --> if a beizer control point is generated between those keyframes
// 6th --> change the intermediate keyframes between k1 and k2.
// [k1] ----- [k2] ---- [k3] ----- [k4] ----- [k5]
// this checks to see if there are control points in between
// this position
// but when you put a intermediate keyframe, that keyframe has no information
// on whether or not that there's keyframes on the left or the right of this keyframe
// do this step before adding into path
// the way to check is to return the keys for all 3 position curves
// find the index of this new keyframe
// check to see if there are indices
// if there is on the left, like a linked list, change the next control point inside the video keyframe on the left
// if there is on the right, like a linked list, change the next control point inside the video keyframe on the right
// one strategy is to have a reference to the next position keyframe in each video keyframe
// by doing this, you can invoke the generatePoints method to
// we need to distingiush between intermediate keyframes and control points
// but the animation curves won't give us this information
// one thing you could do is have a videokeyframe that flags between intermediate point and control point
//
// question --> should we use a videoKeyframe array and change each time? []
// or should we use a list<>
public void SetOrUpdateKeyframes()
{
// first, set the position curve pos at the current timeline marker
onObjectMoved(AnimationCurveToUpdate.x);
onObjectMoved(AnimationCurveToUpdate.y);
onObjectMoved(AnimationCurveToUpdate.z);
// second, set the rotation curve at the current timeline marker
onObjectedRotated(AnimationCurveToUpdate.rotationX);
onObjectedRotated(AnimationCurveToUpdate.rotationY);
onObjectedRotated(AnimationCurveToUpdate.rotationZ);
// create a video keyframe at this time
VideoKeyFrame vk;
animTrack.AddKeyFrameUI(timeline.timelineTicker.currentTime, out vk);
int vkIndex = animTrack.videoKeyFrames.IndexOf(vk);
int vkLeft = vkIndex - 1;
int vkRight = vkIndex + 1;
// add control point w/ this video keyframe -> beizer control points and intermediate points are in charge of the beizer animation curves
beizerPathGroup.beizerPathData.addControlPoint(vk);
// generate intermediate points, depending on where the control point was created
if (vkLeft >= 0)
{
beizerPathGroup.beizerPathData.generateIntermediatePoints(vkLeft, vkIndex);
// set the control point defintions here
// vk.controlPoint.leftControlPoint = animTrack.videoKeyFrames[vkLeft].controlPoint;
}
if (vkRight < animTrack.videoKeyFrames.Count)
{
beizerPathGroup.beizerPathData.generateIntermediatePoints(vkIndex, vkRight);
// vk.controlPoint.rightControlPoint = animTrack.videoKeyFrames[vkRight].controlPoint;
}
}