void SimpleSkeletalAnimatedObject_cl::SetMode(SampleMode_e newMode)
{
ClearData();
m_eSampleMode = newMode;
switch (newMode)
{
case MODE_SINGLEANIM:
StartSingleAnimation(false); break;
case MODE_BLENDTWOANIMS:
BlendTwoAnimations(); break;
case MODE_LISTENTOEVENTS:
ListenToEvents(); break;
case MODE_SETANIMATIONTIME:
SetAnimationTime(); break;
case MODE_LAYERTWOANIMATIONS:
LayerTwoAnimations(); break;
case MODE_FORWARDKINEMATICS:
ForwardKinematics(); break;
case MODE_LOOKAT:
LookAt(); break;
}
// disable motion delta for this sample
if (GetAnimConfig() != NULL)
GetAnimConfig()->SetFlags(GetAnimConfig()->GetFlags() & ~APPLY_MOTION_DELTA);
}
void SimpleSkeletalAnimatedObject_cl::ThinkFunction()
{
// Check whether the object is active.
if (GetAnimConfig() == NULL)
return;
const float dtime = Vision::GetTimer()->GetTimeDifference();
// highlight the bone after animation event
if (m_fBoneHighlightDuration > 0.0f && !m_sHighlightedBoneName.IsEmpty())
{
int iColorVal = static_cast<int>(m_fBoneHighlightDuration / BONE_HIGHLIGHT_FADEOUTTIME * 255.0f);
DrawBoneBoundingBox(m_sHighlightedBoneName, VColorRef(iColorVal,iColorVal, 0), 2.f);
m_fBoneHighlightDuration -= Vision::GetTimer()->GetTimeDifference();
}
// update the LookAt
if (m_eSampleMode == MODE_LOOKAT)
{
VASSERT(m_pLookAtTarget);
// rotate the object around the character
m_fLookAtRotationPhase = hkvMath::mod(m_fLookAtRotationPhase + dtime*0.7f, hkvMath::pi() * 2.0f);
hkvVec3 vNewPos(100.f*hkvMath::sinRad(m_fLookAtRotationPhase), 100.0f*hkvMath::cosRad(m_fLookAtRotationPhase), 160.0f);
vNewPos += GetPosition();
m_pLookAtTarget->SetPosition(vNewPos);
// update the LookAt orientation
UpdateLookatHeadRotation(dtime);
}
}
void AnimatedWarrior_cl::SetEnabled(bool bEnabled)
{
if (m_bEnabled == bEnabled)
return;
m_bEnabled = bEnabled;
if (!m_bModelValid)
return;
#if defined(USE_HAVOK)
// Turn on/off character controller
if (m_pCharacterController != NULL)
m_pCharacterController->SetEnabled(bEnabled ? TRUE : FALSE);
#endif
VisAnimConfig_cl* pAnimConfig = GetAnimConfig();
if (bEnabled)
{
m_spAnimConfig = GetAnimConfig();
if (m_spAnimConfig == NULL)
{
m_spAnimConfig = VisAnimConfig_cl::CreateSkeletalConfig(GetMesh());
SetAnimConfig(m_spAnimConfig);
}
if (m_spAnimConfig->GetFinalResult() != NULL)
m_spAnimConfig->GetFinalResult()->SetSkeletalAnimInput(m_spLayerMixer);
// Resume animation controls
for (int i = 0; i < UPPERBODY_CONTROLCOUNT; i++)
m_spUpperBodyControls[i]->Resume();
for (int i = 0; i < m_FullBodyControlList.Count(); i++)
m_FullBodyControlList.GetAt(i)->Resume();
}
else
{
// Pause animation controls
for (int i = 0; i < UPPERBODY_CONTROLCOUNT; i++)
m_spUpperBodyControls[i]->Pause();
for (int i = 0; i < m_FullBodyControlList.Count(); i++)
m_FullBodyControlList.GetAt(i)->Pause();
if (m_spAnimConfig != NULL && m_spAnimConfig->GetFinalResult() != NULL)
m_spAnimConfig->GetFinalResult()->SetSkeletalAnimInput(NULL);
}
}
bool SimpleSkeletalAnimatedObject_cl::GetHeadRotation(const hkvVec3 &vTargetPos, hkvQuat &targetRot, float fMaxViewAngle)
{
hkvMat4 objectMatrix;
hkvMat4 parentObjectMatrix;
// get the index of the parent bone
int parentBoneIndex = GetMesh()->GetSkeleton()->GetBone(m_iHeadBoneIndex)->m_iParentIndex;
// get the 4x4 matrix of the head bone and its parent in object space
const VisSkeletalAnimResult_cl* pObjectSpaceResult = GetAnimConfig()->GetFinalResult()->GetCurrentObjectSpaceResult();
pObjectSpaceResult->GetBoneTransformationMatrix(m_iHeadBoneIndex, objectMatrix);
pObjectSpaceResult->GetBoneTransformationMatrix(parentBoneIndex, parentObjectMatrix);
// get the current position of the target in object space
hkvVec3 targetObjectspace = TransformToObjectSpace(vTargetPos);
// get the current position of the bone in object space
hkvVec3 boneObjectspace = objectMatrix.getTranslation();
// calculate the look at direction in object space (just for the angle constraints)
hkvVec3 vLookAtDir = targetObjectspace - boneObjectspace;
// check if we are within the angle constraints
vLookAtDir.normalizeIfNotZero();
float fCosMax = hkvMath::cosDeg (180.f - fMaxViewAngle);
bool bInsideFocusArea = vLookAtDir.y < fCosMax;
if (!bInsideFocusArea)
{
// out of focus, so just look straight ahead
targetRot.setIdentity();
return false;
}
// create a LookAt-3x3 matrix from the bone position and the target position (both are in object space)
// This orientation is later used to replace(!) the head bone in local space (VIS_REPLACE_BONE|VIS_LOCAL_SPACE flags)
hkvMat3 lookatMatrix(hkvNoInitialization);
lookatMatrix.setLookInDirectionMatrix(targetObjectspace - boneObjectspace);
// Apply our custom rotation matrix that tells the bone to focus with the eyes and not with the back of the head :-)
lookatMatrix = lookatMatrix.multiply(m_RelativeHeadOrientation);
// Invert the parents object matrix rotation to cancel out all parent bone orientations
hkvMat3 parentObject = parentObjectMatrix.getRotationalPart();
parentObject.invert();
// put everything together
hkvMat3 result = parentObject;
result = result.multiply (lookatMatrix);
// ...and make a quaternion from it
targetRot.setFromMat3 (result);
return true;
}
void SimpleSkeletalAnimatedObject_cl::UpdateLookatHeadRotation(float fTimeDelta)
{
hkvQuat targetRotation;
// evaluate the target rotation
GetHeadRotation(m_pLookAtTarget->GetPosition(), targetRotation, 75.f);
hkvVec3 vForwards(0.0f, -1.0f, 0.0f);
hkvVec3 vFrom = m_CurrentNeckRotation.transform(vForwards);
hkvVec3 vTo = targetRotation.transform(vForwards);
float fAngle = vFrom.getAngleBetween (vTo);
float fAnglePerSecond = 20.0f * fTimeDelta;
float fFactor = hkvMath::Min(fAnglePerSecond / (fAngle + 0.000001f), 1.0f);
m_CurrentNeckRotation.setSlerp(m_CurrentNeckRotation, targetRotation, fFactor);
// Our new bone orientation defines the rotation absolute.
// Thus our modify mode must be VIS_REPLACE_BONE and VIS_LOCAL_SPACE
GetAnimConfig()->GetFinalResult()->SetCustomBoneRotation(m_iHeadBoneIndex, m_CurrentNeckRotation,
VIS_REPLACE_BONE|VIS_LOCAL_SPACE);
}
// **************************************************
// NECK BONE HANDLING
// **************************************************
void AnimatedWarrior_cl::TurnHead(float fDegreesPerSecond, float fTimeDiff, float fMinAngle, float fMaxAngle)
{
float fAmount = fDegreesPerSecond * fTimeDiff;
// update joint rotation (with clamp)
m_fHeadRotationAngles[1] += fAmount;
if (m_fHeadRotationAngles[1] > fMaxAngle)
m_fHeadRotationAngles[1] = fMaxAngle;
else if (m_fHeadRotationAngles[1] < fMinAngle)
m_fHeadRotationAngles[1] = fMinAngle;
//// set new rotation
VASSERT(GetAnimConfig() == m_spAnimConfig);
VisAnimFinalSkeletalResult_cl *pFinalResult = m_spAnimConfig->GetFinalResult();
VASSERT(pFinalResult != NULL);
// update the current localspace result and add custom rotation
pFinalResult->GetCurrentLocalSpaceResult();
hkvQuat tempRotation(hkvNoInitialization);
tempRotation.setFromEulerAngles (m_fHeadRotationAngles[2], m_fHeadRotationAngles[1], m_fHeadRotationAngles[0]);
pFinalResult->SetCustomBoneRotation(m_iHeadBoneIndex, tempRotation, VIS_MODIFY_BONE|VIS_LOCAL_SPACE);
m_bHeadInMovement = true;
}
