| 33 | */ |
| 34 | |
| 35 | bool BaseSystem::Filters(const Entity* entity) const |
| 36 | { |
| 37 | if (!entity) |
| 38 | return false; |
| 39 | |
| 40 | const Nz::Bitset<>& components = entity->GetComponentBits(); |
| 41 | |
| 42 | m_filterResult.PerformsAND(m_requiredComponents, components); |
| 43 | if (m_filterResult != m_requiredComponents) |
| 44 | return false; // At least one required component is not available |
| 45 | |
| 46 | m_filterResult.PerformsAND(m_excludedComponents, components); |
| 47 | if (m_filterResult.TestAny()) |
| 48 | return false; // At least one excluded component is available |
| 49 | |
| 50 | // If we have a list of needed components |
| 51 | if (m_requiredAnyComponents.TestAny()) |
| 52 | { |
| 53 | if (!m_requiredAnyComponents.Intersects(components)) |
| 54 | return false; |
| 55 | } |
| 56 | |
| 57 | return true; |
| 58 | } |
| 59 | |
| 60 | /*! |
| 61 | * \brief Sets the update order of this system |