void CGuiObject::AddChildObject(CGuiObject* obj, bool makeWorldLocal, bool atEnd)
{
obj->x70_parent = this;
if (!x74_child)
{
x74_child = obj;
}
else if (atEnd)
{
CGuiObject* prev = nullptr;
CGuiObject* cur = x74_child;
for (; cur ; cur = cur->x78_nextSibling) {prev = cur;}
if (prev)
prev->x78_nextSibling = obj;
}
else
{
obj->x78_nextSibling = x74_child;
x74_child = obj;
}
if (makeWorldLocal)
{
zeus::CVector3f negParentWorld = -x34_worldXF.m_origin;
zeus::CMatrix3f basisMat(
x34_worldXF.m_basis[0] / x34_worldXF.m_basis[0].magnitude(),
x34_worldXF.m_basis[1] / x34_worldXF.m_basis[1].magnitude(),
x34_worldXF.m_basis[2] / x34_worldXF.m_basis[2].magnitude());
zeus::CVector3f xfWorld = basisMat * negParentWorld;
obj->x4_localXF = zeus::CTransform(basisMat, xfWorld) * obj->x34_worldXF;
}
RecalculateTransforms();
}
void BSplineCurveEvaluator::evaluateCurve(const std::vector<Point>& ptvCtrlPts,
std::vector<Point>& ptvEvaluatedCurvePts,
const float& fAniLength,
const bool& bWrap) const
{
ptvEvaluatedCurvePts.clear();
std::vector<double> samplePoints(_numSamples + 1,_numSamples);
ufGenSample uf;
std::transform(samplePoints.begin(),samplePoints.end(),samplePoints.begin(),uf);
// if wrapping is off, make the first and last segments of
// the curve horizontal.
Mat4d basisMat(1.0f/6.0f,-1.0f/2.0f,1.0f/2.0f,-1.0f/6.0f,2.0f/3.0f,0.0f,-1.0f,1.0f/2.0f,1.0f/6.0f,1.0f/2.0f,1.0f/2.0f,-1.0f/2.0f,0.0f,0.0f,0.0f,1.0f/6.0f);
std::vector<Point> knotVector;
if(~bWrap){
knotVector.push_back(ptvCtrlPts[0]);
knotVector.push_back(ptvCtrlPts[0]);}
for(std::vector<Point>::const_iterator itC = ptvCtrlPts.begin(); itC!=ptvCtrlPts.end();++itC)
knotVector.push_back(*itC);
if(bWrap){
knotVector.push_back(*(ptvCtrlPts.end() - 1));
knotVector.push_back(Point(fAniLength + ptvCtrlPts[0].x, ptvCtrlPts[0].y));
knotVector.push_back(Point(fAniLength + ptvCtrlPts[0].x, ptvCtrlPts[0].y));}
if(~bWrap){
knotVector.push_back(*(ptvCtrlPts.end() - 1));
knotVector.push_back(*(ptvCtrlPts.end() - 1));}
for(std::vector<Point>::iterator it = knotVector.begin();it!=(knotVector.end()-3);++it){
Point P0 = *it;
Point P1 = *(1 + it);
Point P2 = *(2 + it);
Point P3 = *(3 + it);
for(std::vector<double>::iterator it = samplePoints.begin();it!=samplePoints.end();++it){
Vec4d sampleMultVec(1,*it,(*it) * (*it), (*it) * (*it) * (*it));
Vec4d result = basisMat * sampleMultVec;
Point evalPt = (result[0]*P0) + (result[1]*P1) + (result[2]*P2) + (result[3]*P3);
if(bWrap){
if(evalPt.x>fAniLength){
evalPt.x-=fAniLength;
if(evalPt.x>ptvCtrlPts[0].x)
continue;}}
ptvEvaluatedCurvePts.push_back(evalPt);
}
}
if(!bWrap){
ptvEvaluatedCurvePts.push_back(Point(0.0f,ptvCtrlPts[0].y));
ptvEvaluatedCurvePts.push_back(Point(fAniLength,(*(ptvCtrlPts.end() -1)).y));
}
}
