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Add null ecs handle for convenience

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This commit is contained in:
Nikita Lisitsa 2024-07-19 00:35:37 +03:00
parent 5df29246a5
commit 403e24bf4c
1 changed files with 10 additions and 0 deletions
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10
libs/ecs/include/psemek/ecs/handle.hpp
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@ -14,6 +14,16 @@ namespace psemek::ecs
friend bool operator == (handle const &, handle const &) = default; friend bool operator == (handle const &, handle const &) = default;
friend auto operator <=> (handle const &, handle const &) = default; friend auto operator <=> (handle const &, handle const &) = default;
static handle null()
{
return {-1, -1};
}
explicit operator bool() const
{
return (*this) != null();
}
}; };
inline std::ostream & operator << (std::ostream & out, handle const & handle) inline std::ostream & operator << (std::ostream & out, handle const & handle)