public override Playable CreatePlayable(PlayableGraph graph, GameObject owner)
{
var playable = ScriptPlayable <TransformTweenBehaviour> .Create(graph, template);
TransformTweenBehaviour clone = playable.GetBehaviour();
clone.startLocation = startLocation.Resolve(graph.GetResolver());
clone.endLocation = endLocation.Resolve(graph.GetResolver());
return(playable);
}
public override void ProcessFrame(Playable playable, FrameData info, object playerData)
{
Transform trackBinding = playerData as Transform;
if (trackBinding == null)
{
return;
}
Vector3 defaultPosition = trackBinding.position;
Quaternion defaultRotation = trackBinding.rotation;
int inputCount = playable.GetInputCount();
float positionTotalWeight = 0f;
float rotationTotalWeight = 0f;
Vector3 blendedPosition = Vector3.zero;
Quaternion blendedRotation = new Quaternion(0f, 0f, 0f, 0f);
for (int i = 0; i < inputCount; i++)
{
ScriptPlayable <TransformTweenBehaviour> playableInput = (ScriptPlayable <TransformTweenBehaviour>)playable.GetInput(i);
TransformTweenBehaviour input = playableInput.GetBehaviour();
if (input.endLocation == null)
{
continue;
}
float inputWeight = playable.GetInputWeight(i);
if (!m_FirstFrameHappened && !input.startLocation)
{
input.startingPosition = defaultPosition;
input.startingRotation = defaultRotation;
}
float normalisedTime = (float)(playableInput.GetTime() / playableInput.GetDuration());
float tweenProgress = input.EvaluateCurrentCurve(normalisedTime);
if (input.tweenPosition)
{
positionTotalWeight += inputWeight;
blendedPosition += Vector3.Lerp(input.startingPosition, input.endLocation.position, tweenProgress) * inputWeight;
}
if (input.tweenRotation)
{
rotationTotalWeight += inputWeight;
Quaternion desiredRotation = Quaternion.Lerp(input.startingRotation, input.endLocation.rotation, tweenProgress);
desiredRotation = NormalizeQuaternion(desiredRotation);
if (Quaternion.Dot(blendedRotation, desiredRotation) < 0f)
{
desiredRotation = ScaleQuaternion(desiredRotation, -1f);
}
desiredRotation = ScaleQuaternion(desiredRotation, inputWeight);
blendedRotation = AddQuaternions(blendedRotation, desiredRotation);
}
}
blendedPosition += defaultPosition * (1f - positionTotalWeight);
Quaternion weightedDefaultRotation = ScaleQuaternion(defaultRotation, 1f - rotationTotalWeight);
blendedRotation = AddQuaternions(blendedRotation, weightedDefaultRotation);
trackBinding.position = blendedPosition;
trackBinding.rotation = blendedRotation;
m_FirstFrameHappened = true;
}
private void Start()
{
tweenBehaviour = GetComponent <TransformTweenBehaviour>();
}
