private int seekRightKeyFrame(int aboveFrameNumber, ShapeElement forElement, int forFlag)
{
int firstIndex = -1;
for (int i = 0; i < KeyFrames.Length; i++)
{
AnimationKeyFrame keyframe = KeyFrames[i];
AnimationKeyFrameElement kelem = keyframe.GetKeyFrameElement(forElement);
if (kelem != null && kelem.IsSet(forFlag))
{
if (firstIndex == -1)
{
firstIndex = i;
}
if (keyframe.Frame <= aboveFrameNumber)
{
continue;
}
return(i);
}
}
return(firstIndex);
}
protected void lerpKeyFrameElement(AnimationKeyFrameElement prev, AnimationKeyFrameElement next, int forFlag, float t, ref ElementPose transform)
{
if (prev == null && next == null)
{
return;
}
t = GameMath.SmoothStep(t);
// Applies the transforms in model space
if (forFlag == 0)
{
transform.translateX = GameMath.Lerp((float)prev.OffsetX / 16f, (float)next.OffsetX / 16f, t);
transform.translateY = GameMath.Lerp((float)prev.OffsetY / 16f, (float)next.OffsetY / 16f, t);
transform.translateZ = GameMath.Lerp((float)prev.OffsetZ / 16f, (float)next.OffsetZ / 16f, t);
}
else if (forFlag == 1)
{
transform.degX = GameMath.Lerp((float)prev.RotationX, (float)next.RotationX, t);
transform.degY = GameMath.Lerp((float)prev.RotationY, (float)next.RotationY, t);
transform.degZ = GameMath.Lerp((float)prev.RotationZ, (float)next.RotationZ, t);
}
else
{
transform.scaleX = GameMath.Lerp((float)prev.StretchX, (float)next.StretchX, t);
transform.scaleY = GameMath.Lerp((float)prev.StretchY, (float)next.StretchY, t);
transform.scaleZ = GameMath.Lerp((float)prev.StretchZ, (float)next.StretchZ, t);
}
}
internal AnimationKeyFrameElement GetKeyFrameElement(ShapeElement forElem)
{
if (forElem == null)
{
return(null);
}
AnimationKeyFrameElement kelem = null;
ElementsByShapeElement.TryGetValue(forElem, out kelem);
return(kelem);
}
private int seekLeftKeyFrame(int leftOfKeyFrameIndex, ShapeElement forElement, int forFlag)
{
for (int i = 0; i < KeyFrames.Length; i++)
{
int index = GameMath.Mod(leftOfKeyFrameIndex - i - 1, KeyFrames.Length);
AnimationKeyFrame keyframe = KeyFrames[index];
AnimationKeyFrameElement kelem = keyframe.GetKeyFrameElement(forElement);
if (kelem != null && kelem.IsSet(forFlag))
{
return(index);
}
}
return(-1);
}
/// <summary>
/// Resolves the keyframe animation for which elements are important.
/// </summary>
/// <param name="anim"></param>
/// <param name="allElements"></param>
public void Resolve(Animation anim, ShapeElement[] allElements)
{
if (Elements == null)
{
return;
}
foreach (var val in Elements)
{
val.Value.Frame = Frame;
}
foreach (ShapeElement elem in allElements)
{
AnimationKeyFrameElement kelem = FindKeyFrameElement(elem);
if (kelem != null)
{
ElementsByShapeElement[elem] = kelem;
}
}
}
protected void getTwoKeyFramesElementForFlag(int frameNumber, ShapeElement forElement, int forFlag, out AnimationKeyFrameElement left, out AnimationKeyFrameElement right)
{
left = null;
right = null;
int rightKfIndex = seekRightKeyFrame(frameNumber, forElement, forFlag);
if (rightKfIndex == -1)
{
return;
}
right = KeyFrames[rightKfIndex].GetKeyFrameElement(forElement);
int leftKfIndex = seekLeftKeyFrame(rightKfIndex, forElement, forFlag);
if (leftKfIndex == -1)
{
left = right;
return;
}
left = KeyFrames[leftKfIndex].GetKeyFrameElement(forElement);
}