//矩形和矩形相交判断
Bool HawkRect2D::Intersect(const HawkRect2D& oRect) const
{
Float fDis = (GetBoundCenter() - oRect.GetBoundCenter()).Length();
if (fDis > GetBoundRadius() + oRect.GetBoundRadius())
{
return false;
}
for (Int32 i=0;i<4;i++)
{
HawkLine2D oLine(GetPoint(i),GetPoint((i+1)%4));
PtRelation eRel = IsClockWise()?PT_LEFT:PT_RIGHT;
if (oLine.GetPtRelation(oRect.GetPoint(0)) == eRel &&
oLine.GetPtRelation(oRect.GetPoint(1)) == eRel &&
oLine.GetPtRelation(oRect.GetPoint(2)) == eRel &&
oLine.GetPtRelation(oRect.GetPoint(3)) == eRel)
return false;
}
for (Int32 i=0;i<4;i++)
{
HawkLine2D oLine(oRect.GetPoint(i),oRect.GetPoint((i+1)%4));
PtRelation eRel = oRect.IsClockWise()?PT_LEFT:PT_RIGHT;
if (oLine.GetPtRelation(GetPoint(0)) == eRel &&
oLine.GetPtRelation(GetPoint(1)) == eRel &&
oLine.GetPtRelation(GetPoint(2)) == eRel &&
oLine.GetPtRelation(GetPoint(3)) == eRel)
return false;
}
return true;
}
void PathLine::updatePosition()
{
QLineF oLine(mapFromItem(m_oStartItem, 0, 0), mapFromItem(m_oEndItem, 0, 0));
setLine(oLine);
}
