Point Terrain::movingRevision(const Point& last, const Point& updated) {
CC_UNUSED_PARAM(last);
if (isInStandGround(updated)) {
return ccp(0.0f, 0.0f);
}
BorderNode* pSgmt = borderEntry;
Point wallVect, nextWallVect, sgmtStart, sgmtEnd, nextEnd, dividerVect;
Point revised;
do {
sgmtStart = ccp(tileSize * pSgmt->segment.start.col, tileSize * pSgmt->segment.start.row);
sgmtEnd = ccp(tileSize * pSgmt->segment.end.col, tileSize * pSgmt->segment.end.row);
nextEnd = ccp(tileSize * pSgmt->next->segment.end.col, tileSize * pSgmt->next->segment.end.row);
wallVect = ccpRotateByAngle(sgmtEnd - sgmtStart, ccp(0, 0), CC_DEGREES_TO_RADIANS(-90));
nextWallVect = ccpRotateByAngle(nextEnd - sgmtEnd, ccp(0, 0), CC_DEGREES_TO_RADIANS(-90));
if (ccpCross(sgmtEnd - sgmtStart, nextEnd - sgmtEnd) > 0) // 凸角
{
if (pointOnLineSide(updated, sgmtStart, sgmtEnd) == POS_ON_THE_RIGHT
&& pointOnLineSide(updated, sgmtStart, sgmtStart + wallVect) == POS_ON_THE_LEFT
&& pointOnLineSide(updated, sgmtEnd, sgmtEnd + wallVect) == POS_ON_THE_RIGHT)
{
// 作个垂线修正..
revised = sgmtStart + ccpProject(updated - sgmtStart, sgmtEnd - sgmtStart);
break;
}
else if (pointOnLineSide(updated, sgmtEnd, sgmtEnd + wallVect) == POS_ON_THE_LEFT
&& pointOnLineSide(updated, sgmtEnd, sgmtEnd + nextWallVect) == POS_ON_THE_RIGHT)
{
// 修正到当前边末端的凸角点..
revised = sgmtEnd;
break;
}
}
else // 凹角
{
dividerVect = ccpNormalize(nextEnd - sgmtEnd) - ccpNormalize(sgmtEnd - sgmtStart);
if (pointOnLineSide(updated, sgmtStart, sgmtEnd) == POS_ON_THE_RIGHT
&& pointOnLineSide(updated, sgmtStart, sgmtStart + wallVect) == POS_ON_THE_LEFT
&& pointOnLineSide(updated, sgmtEnd, sgmtEnd + dividerVect) == POS_ON_THE_RIGHT)
{
// 作个垂线修正..
revised = sgmtStart + ccpProject(updated - sgmtStart, sgmtEnd - sgmtStart);
break;
}
}
pSgmt = pSgmt->next;
} while (pSgmt != borderEntry);
return (revised - updated);
}
// This is the main component method for interpereters and plugins.
// May als be used in case of invokeable addons
STDMETHODIMP RawComponent::InvokeEx( IMgaProject *project, IMgaFCO *currentobj,
IMgaFCOs *selectedobjs, long param)
{
// Calling the user's initialization function
if(CUdmApp::Initialize())
{
return S_FALSE;
}
CComPtr<IMgaProject>ccpProject(project);
long prefmask;
ccpProject->get_Preferences(&prefmask);
// KMS magic number MGAPREF_NO_NESTED_TX
#define MGAPREF_NO_NESTED_TX 0x80
prefmask |= MGAPREF_NO_NESTED_TX;
ccpProject->put_Preferences(prefmask);
std::shared_ptr<CComPtr<IMgaProject>> mgaPrefRestore(std::addressof(ccpProject), [prefmask](ATL::CComPtr<IMgaProject>* p){ (*p)->put_Preferences(prefmask & (~MGAPREF_NO_NESTED_TX)); } );
CComPtr<IMgaComponentEx> constrMgr;
CComPtr<IMgaComponentEx> cyphyAddon;
// Finding constraint manager among the addons
CComPtr<IMgaComponents> comps;
COMTHROW( ccpProject->get_AddOnComponents(&comps));
MGACOLL_ITERATE(IMgaComponent, comps)
{
CComBSTR name;
COMTHROW(MGACOLL_ITER->get_ComponentName(&name));
if(name == L"ConstraintManager")
{
constrMgr = CComQIPtr<IMgaComponentEx>(MGACOLL_ITER);
}
else if(name == L"CyPhyAddOn")
{
cyphyAddon = CComQIPtr<IMgaComponentEx>(MGACOLL_ITER);
}
} MGACOLL_ITERATE_END;