diff options
Diffstat (limited to 'src/chunk.cpp')
| -rw-r--r-- | src/chunk.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/chunk.cpp b/src/chunk.cpp index 17fe1b49..652bd63d 100644 --- a/src/chunk.cpp +++ b/src/chunk.cpp @@ -1,5 +1,6 @@ #include "chunk.hpp" #include "object.hpp" +#include "world.hpp" #include "tile-iterator.hpp" #include <algorithm> #include <Magnum/GL/Context.h> @@ -42,6 +43,34 @@ tile_proto chunk::operator[](size_t idx) const noexcept { return tile_proto(tile tile_ref chunk::operator[](local_coords xy) noexcept { return operator[](xy.to_index()); } tile_proto chunk::operator[](local_coords xy) const noexcept { return operator[](xy.to_index()); } +tile_ref chunk::at_offset(local_coords pos, Vector2i off) +{ + const auto coord = global_coords{_coord, pos}; + const auto coord2 = coord + off; + if (coord.chunk() == coord2.chunk()) [[likely]] + return operator[](coord2.local()); + else + return (*_world)[coord2].t; +} + +Optional<tile_ref> chunk::at_offset_(local_coords pos, Vector2i off) +{ + const auto coord = global_coords{_coord, pos}; + const auto coord2 = coord + off; + if (coord.chunk() == coord2.chunk()) [[likely]] + return operator[](coord2.local()); + else + { + if (auto* ch = _world->at({coord2})) + return (*ch)[coord2.local()]; + else + return NullOpt; + } +} + +tile_ref chunk::at_offset(tile_ref r, Vector2i off) { return at_offset(local_coords{r.index()}, off); } +Optional<tile_ref> chunk::at_offset_(tile_ref r, Vector2i off) { return at_offset_(local_coords{r.index()}, off); } + auto chunk::begin() noexcept -> iterator { return iterator { *this, 0 }; } auto chunk::end() noexcept -> iterator { return iterator { *this, TILE_COUNT }; } auto chunk::cbegin() const noexcept -> const_iterator { return const_iterator { *this, 0 }; } |