diff options
Diffstat (limited to 'src/tile.hpp')
| -rw-r--r-- | src/tile.hpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/tile.hpp b/src/tile.hpp index 169c941b..f559ce79 100644 --- a/src/tile.hpp +++ b/src/tile.hpp @@ -36,12 +36,19 @@ struct tile final struct local_coords final { std::uint8_t x = 0, y = 0; + explicit constexpr local_coords(std::size_t idx); constexpr local_coords() = default; constexpr local_coords(std::size_t x, std::size_t y); constexpr local_coords(std::uint8_t x, std::uint8_t y) : x{x}, y{y} {} constexpr std::size_t to_index() const { return y*TILE_MAX_DIM + x; } }; +constexpr local_coords::local_coords(std::size_t index) : + x{(std::uint8_t)(index % TILE_MAX_DIM)}, + y{(std::uint8_t)(index / TILE_MAX_DIM)} +{ +} + constexpr local_coords::local_coords(std::size_t x, std::size_t y) : x{(std::uint8_t)x}, y{(std::uint8_t)y} { |