CVector3f clampToBox(const CVector3f& vec) const {
CVector3f ret = vec;
ret.x() = clamp(min.x(), float(ret.x()), max.x());
ret.y() = clamp(min.y(), float(ret.y()), max.y());
ret.z() = clamp(min.z(), float(ret.z()), max.z());
return ret;
}
void splitX(CAABox& negX, CAABox& posX) const {
float midX = (max.x() - min.x()) * .5f + min.x();
posX.max = max;
posX.min = min;
posX.min.x() = midX;
negX.max = max;
negX.max.x() = midX;
negX.min = min;
}
float distanceBetween(const CAABox& other) {
int intersects = 0;
if (max.x() >= other.min.x() && min.x() <= other.max.x())
intersects |= 0x1;
if (max.y() >= other.min.y() && min.y() <= other.max.y())
intersects |= 0x2;
if (max.z() >= other.min.z() && min.z() <= other.max.z())
intersects |= 0x4;
float minX, maxX;
if (max.x() < other.min.x()) {
minX = max.x();
maxX = other.min.x();
} else {
minX = min.x();
maxX = other.max.x();
}
float minY, maxY;
if (max.y() < other.min.y()) {
minY = max.y();
maxY = other.min.y();
} else {
minY = min.y();
maxY = other.max.y();
}
float minZ, maxZ;
if (max.z() < other.min.z()) {
minZ = max.z();
maxZ = other.min.z();
} else {
minZ = min.z();
maxZ = other.max.z();
}
switch (intersects) {
case 0:
return zeus::CVector3f(maxX - minX, maxY - minY, maxZ - minZ).magnitude();
case 1:
return zeus::CVector2f(maxY - minY, maxZ - minZ).magnitude();
case 2:
return zeus::CVector2f(maxX - minX, maxZ - minZ).magnitude();
case 3:
return std::fabs(maxZ - minZ);
case 4:
return zeus::CVector2f(maxX - minX, maxY - minY).magnitude();
case 5:
return std::fabs(maxY - minY);
case 6:
return std::fabs(maxX - minX);
case 7:
default:
return 0.f;
}
}
void accumulateBounds(const CVector3f& point) {
if (min.x() > point.x())
min.x() = point.x();
if (min.y() > point.y())
min.y() = point.y();
if (min.z() > point.z())
min.z() = point.z();
if (max.x() < point.x())
max.x() = point.x();
if (max.y() < point.y())
max.y() = point.y();
if (max.z() < point.z())
max.z() = point.z();
}
bool invalid() { return (max.x() < min.x() || max.y() < min.y() || max.z() < min.z()); }
CVector3f furthestPointAlongVector(const CVector3f& other) const {
return {(other.x() >= 0.f ? max.x() : min.x()), (other.y() >= 0.f ? max.y() : min.y()),
(other.z() >= 0.f ? max.z() : min.z())};
}
bool pointInside(const CVector3f& other) const {
return (min.x() <= other.x() && other.x() <= max.x() && min.y() <= other.y() && other.y() <= max.y() &&
min.z() <= other.z() && other.z() <= max.z());
}
CLineSeg getEdge(EBoxEdgeId id) const {
switch (id) {
case EBoxEdgeId::Z0:
default:
return CLineSeg({min.x(), min.y(), max.z()}, {min.x(), min.y(), min.z()});
case EBoxEdgeId::X0:
return CLineSeg({min.x(), min.y(), min.z()}, {max.x(), min.y(), min.z()});
case EBoxEdgeId::Z1:
return CLineSeg({max.x(), min.y(), min.z()}, {max.x(), min.y(), max.z()});
case EBoxEdgeId::X1:
return CLineSeg({max.x(), min.y(), max.z()}, {min.x(), min.y(), max.z()});
case EBoxEdgeId::Z2:
return CLineSeg({max.x(), max.y(), max.z()}, {max.x(), max.y(), min.z()});
case EBoxEdgeId::X2:
return CLineSeg({max.x(), max.y(), min.z()}, {min.x(), max.y(), min.z()});
case EBoxEdgeId::Z3:
return CLineSeg({min.x(), max.y(), min.z()}, {min.x(), max.y(), max.z()});
case EBoxEdgeId::X3:
return CLineSeg({min.x(), max.y(), max.z()}, {max.x(), max.y(), max.z()});
case EBoxEdgeId::Y0:
return CLineSeg({min.x(), min.y(), max.z()}, {min.x(), max.y(), max.z()});
case EBoxEdgeId::Y1:
return CLineSeg({min.x(), min.y(), min.z()}, {min.x(), max.y(), min.z()});
case EBoxEdgeId::Y2:
return CLineSeg({max.x(), min.y(), min.z()}, {max.x(), max.y(), min.z()});
case EBoxEdgeId::Y3:
return CLineSeg({max.x(), min.y(), max.z()}, {max.x(), max.y(), max.z()});
}
}
