// USAGE/FUNCTION
// io can be NULL if io is valid io->bbox3D contains 3D world-bbox
// bboxmin & bboxmax ARE in fact 2D-screen BBOXes using only (x,y).
// RETURN:
// return true if IO cannot be seen, false if visible
// TODO:
// Implement all Portal Methods
// Return a reduced clipbox which can be used for polys clipping in the case of partial visibility
bool ARX_SCENE_PORTAL_ClipIO(Entity * io, const Vec3f & position) {
if(io==entities.player())
return false;
if(io && (io->ioflags & IO_FORCEDRAW))
return false;
if(portals) {
Vec3f posi = position + Vec3f(0, -60, 0); // -20 ?
long room_num;
if(io) {
if(io->requestRoomUpdate)
UpdateIORoom(io);
room_num = io->room;//
} else {
room_num = ARX_PORTALS_GetRoomNumForPosition(posi);
}
if(room_num == -1) {
posi.y = position.y - 120;
room_num = ARX_PORTALS_GetRoomNumForPosition(posi);
}
if(room_num >= 0 && size_t(room_num) < RoomDraw.size()) {
if(RoomDraw[room_num].count == 0) {
if(io) {
io->bbox2D.min = Vec2f(-1.f, -1.f);
io->bbox2D.max = Vec2f(-1.f, -1.f);
}
return true;
}
if(io) {
Sphere sphere;
sphere.origin = (io->bbox3D.min + io->bbox3D.max) * .5f;
sphere.radius = glm::distance(sphere.origin, io->bbox3D.min) + 10.f;
EERIE_FRUSTRUM_DATA & frustrums = RoomDraw[room_num].frustrum;
if(FrustrumsClipSphere(frustrums, sphere) ||
FrustrumsClipBBox3D(frustrums, io->bbox3D)
) {
io->bbox2D.min = Vec2f(-1.f, -1.f);
io->bbox2D.max = Vec2f(-1.f, -1.f);
return true;
}
}
}
}
return false;
}
bool VisibleSphere(const Sphere & sphere) {
ARX_PROFILE_FUNC();
if(fartherThan(sphere.origin, ACTIVECAM->orgTrans.pos, ACTIVECAM->cdepth*0.5f + sphere.radius))
return false;
long room_num = ARX_PORTALS_GetRoomNumForPosition(sphere.origin);
if(room_num>=0) {
EERIE_FRUSTRUM_DATA & frustrums = RoomDraw[room_num].frustrum;
if (FrustrumsClipSphere(frustrums, sphere))
return false;
}
return true;
}
bool VisibleSphere(const Vec3f & pos, float radius) {
if(fartherThan(pos, ACTIVECAM->orgTrans.pos, ACTIVECAM->cdepth*0.5f + radius))
return false;
long room_num = ARX_PORTALS_GetRoomNumForPosition(pos);
if (room_num>=0)
{
Sphere sphere;
sphere.origin = pos;
sphere.radius = radius;
EERIE_FRUSTRUM_DATA & frustrums = RoomDraw[room_num].frustrum;
if (FrustrumsClipSphere(frustrums, sphere))
return false;
}
return true;
}
