DAVA::AABBox3 EntityGroup::GetCommonBbox() const
{
DAVA::AABBox3 ret;
for(size_t i = 0; i <entities.size(); ++i)
{
ret.AddAABBox(GetBbox(i));
}
return ret;
}
DAVA::AABBox3 SceneSelectionSystem::CalcAABox(DAVA::Entity *entity) const
{
DAVA::AABBox3 ret;
if(NULL != entity)
{
// we will get selection bbox from collision system
ret = collisionSystem->GetBoundingBox(entity);
if(ret.IsEmpty())
{
for (DAVA::int32 i = 0; i < entity->GetChildrenCount(); i++)
{
ret.AddAABBox(collisionSystem->GetBoundingBox(entity->GetChild(i)));
}
}
}
return ret;
}
DAVA::AABBox3 SceneSelectionSystem::GetSelectionAABox(DAVA::Entity *entity, const DAVA::Matrix4 &transform) const
{
DAVA::AABBox3 ret = DAVA::AABBox3(DAVA::Vector3(0, 0, 0), 0);
if(NULL != entity)
{
// we will get selection bbox from collision system
DAVA::AABBox3 entityBox = collisionSystem->GetBoundingBox(entity);
// add childs boxes into entity box
for (DAVA::int32 i = 0; i < entity->GetChildrenCount(); i++)
{
DAVA::Entity *childEntity = entity->GetChild(i);
DAVA::AABBox3 childBox = GetSelectionAABox(childEntity, childEntity->GetLocalTransform());
if(entityBox.IsEmpty())
{
entityBox = childBox;
}
else
{
if(!childBox.IsEmpty())
{
entityBox.AddAABBox(childBox);
}
}
}
// we should return box with specified transformation
if(!entityBox.IsEmpty())
{
entityBox.GetTransformedBox(transform, ret);
}
}
return ret;
}