Vector3 GetLookTargetPosForSocialTriangle( FaceLookTarget playerFaceLookTarget )
{
if ( currentTargetLeftEyeXform == null || currentTargetRightEyeXform == null )
return currentEyeTargetPOI.position;
Vector3 faceTargetPos = Vector3.zero;
Vector3 eyeCenter = 0.5f * (currentTargetLeftEyeXform.position + currentTargetRightEyeXform.position);
switch( playerFaceLookTarget )
{
case FaceLookTarget.EyesCenter:
faceTargetPos = GetCurrentEyeTargetPos();
break;
case FaceLookTarget.LeftEye:
faceTargetPos = Vector3.Lerp(eyeCenter, currentTargetLeftEyeXform.position, 0.75f);
break;
case FaceLookTarget.RightEye:
faceTargetPos = Vector3.Lerp(eyeCenter, currentTargetRightEyeXform.position, 0.75f);
break;
case FaceLookTarget.Mouth:
Vector3 eyeUp = 0.5f * (currentTargetLeftEyeXform.up + currentTargetRightEyeXform.up);
faceTargetPos = eyeCenter - eyeUp * 0.4f * Vector3.Distance( currentTargetLeftEyeXform.position, currentTargetRightEyeXform.position );
break;
}
return faceTargetPos;
}
public void LookAtFace( Transform leftEyeXform,
Transform rightEyeXform,
float headLatency=0.075f )
{
lookTarget = LookTarget.Face;
headSpeed = HeadSpeed.Fast;
faceLookTarget = FaceLookTarget.EyesCenter;
this.headLatency = headLatency;
currentTargetLeftEyeXform = leftEyeXform;
currentTargetRightEyeXform = rightEyeXform;
nextTargetLeftEyeXform = nextTargetRightEyeXform = null;
nextHeadTargetPOI = null;
StartEyeMovement( );
}
void CheckMacroSaccades()
{
if ( lookTarget == LookTarget.SpecificThing )
return;
if ( controlData.eyeControl == ControlData.EyeControl.None )
return;
if ( eyeLatency > 0 )
return;
timeToMacroSaccade -= Time.deltaTime;
if ( timeToMacroSaccade <= 0 )
{
if ( lookTarget == LookTarget.GeneralDirection && useMacroSaccades)
{
const float kMacroSaccadeAngle = 10;
bool hasBoneEyelidControl = controlData.eyelidControl == ControlData.EyelidControl.Bones;
float angleVert = Random.Range(-kMacroSaccadeAngle * (hasBoneEyelidControl ? 0.65f : 0.3f), kMacroSaccadeAngle * (hasBoneEyelidControl ? 0.65f : 0.4f));
float angleHoriz = Random.Range(-kMacroSaccadeAngle,kMacroSaccadeAngle);
SetMacroSaccadeTarget( eyesRootXform.TransformPoint( Quaternion.Euler( angleVert, angleHoriz, 0)
* eyesRootXform.InverseTransformPoint( GetCurrentEyeTargetPos() )));
timeToMacroSaccade = Random.Range(5.0f, 8.0f);
timeToMacroSaccade *= 1.0f/(1.0f + nervousness);
}
else if ( lookTarget == LookTarget.Face )
{
if ( currentEyeTargetPOI == null )
{
//*** Social triangle: saccade between eyes and mouth (or chest, if actor isn't looking back)
{
switch( faceLookTarget )
{
case FaceLookTarget.LeftEye:
faceLookTarget = Random.value < 0.75f ? FaceLookTarget.RightEye : FaceLookTarget.Mouth;
break;
case FaceLookTarget.RightEye:
faceLookTarget = Random.value < 0.75f ? FaceLookTarget.LeftEye : FaceLookTarget.Mouth;
break;
case FaceLookTarget.Mouth:
case FaceLookTarget.EyesCenter:
faceLookTarget = Random.value < 0.5f ? FaceLookTarget.LeftEye : FaceLookTarget.RightEye;
break;
}
SetMacroSaccadeTarget( GetLookTargetPosForSocialTriangle( faceLookTarget ) );
timeToMacroSaccade = (faceLookTarget == FaceLookTarget.Mouth) ? Random.Range(0.4f, 0.9f)
: Random.Range(1.0f, 3.0f);
timeToMacroSaccade *= 1.0f/(1.0f + nervousness);
}
}
}
}
}