public override Playable CreatePlayable(PlayableGraph graph, GameObject owner)
{
ScriptPlayable <CameraTimelineBehaviour> playable = ScriptPlayable <CameraTimelineBehaviour> .Create(graph, template);
CameraTimelineBehaviour clone = playable.GetBehaviour();
IExposedPropertyTable graphResolver = graph.GetResolver();
clone.segment = segment.Resolve(graphResolver);
clone.target = target.Resolve(graphResolver);
return(playable);
}
// blending logic inspired by cinemachine:
// https://github.com/Unity-Technologies/com.unity.cinemachine/blob/5d6d08591076a1fcd5911a70ece75a4bab32fc16/Runtime/Timeline/CinemachineMixer.cs#L185
public override void ProcessFrame(Playable playable, FrameData info, object playerData)
{
TimelineCamera timelineCamera = playerData as TimelineCamera;
if (!timelineCamera)
{
return;
}
if (!this.timelineCamera)
{
this.timelineCamera = timelineCamera;
}
int activeInputs = 0;
int inputIndexA = -1;
int inputIndexB = -1;
bool incomingIsA = false; // Assume that incoming clip is clip B
float weightB = 1;
int inputCount = playable.GetInputCount();
for (int i = 0; i < inputCount; i++)
{
ScriptPlayable <CameraTimelineBehaviour> playableInput = (ScriptPlayable <CameraTimelineBehaviour>)playable.GetInput(i);
CameraTimelineBehaviour behaviour = playableInput.GetBehaviour();
float weight = playable.GetInputWeight(i);
if (behaviour.IsValid && weight > 0)
{
inputIndexA = inputIndexB;
inputIndexB = i;
weightB = weight;
if (++activeInputs == 2)
{
// Deduce which clip is incoming (timeline doesn't know)
var inputA = playable.GetInput(inputIndexA);
var inputB = playableInput;
double timeA = inputA.GetTime();
double timeB = inputB.GetTime();
// If same start time, longer clip is incoming
if (timeA == timeB)
{
incomingIsA = inputB.GetDuration() < inputA.GetDuration();
}
else
{
// Incoming has later start time (therefore earlier current time)
incomingIsA = timeB >= timeA;
}
break;
}
}
}
// left just in case I would need it
// Special case: check for only one clip that's fading out - it must be outgoing
//if (activeInputs == 1 && weightB < 1
// && playable.GetInput(inputIndexB).GetTime() > playable.GetInput(inputIndexB).GetDuration() / 2)
//{
// incomingIsA = true;
//}
if (incomingIsA)
{
(inputIndexA, inputIndexB) = (inputIndexB, inputIndexA);
weightB = 1 - weightB;
}
if (activeInputs == 1)
{
var input = (ScriptPlayable <CameraTimelineBehaviour>)playable.GetInput(inputIndexB);
var behaviour = input.GetBehaviour();
CameraSegment segment = behaviour.segment;
Vector3 position = behaviour.target.position;
timelineCamera.SetState(segment, position);
}
else if (activeInputs == 2)
{
var inputA = (ScriptPlayable <CameraTimelineBehaviour>)playable.GetInput(inputIndexA);
var behaviourA = inputA.GetBehaviour();
var inputB = (ScriptPlayable <CameraTimelineBehaviour>)playable.GetInput(inputIndexB);
var behaviourB = inputB.GetBehaviour();
if (behaviourA.segment == behaviourB.segment)
{
Vector3 position = Vector3.Lerp(behaviourA.target.position, behaviourB.target.position, weightB);
CameraSegment segment = behaviourA.segment;
timelineCamera.SetState(segment, position);
}
else
{
var stateA = behaviourA.GetState();
var stateB = behaviourB.GetState();
timelineCamera.SetFadeState(stateA, stateB, weightB);
}
}
}
