natsirt/noggit-red
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add custom range replacement

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This commit is contained in:
Skarn
2021-12-14 03:11:29 +03:00
parent d47ede4a67
commit c84023f548
1 changed files with 19 additions and 3 deletions
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22
src/noggit/map_index.hpp
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@@ -48,8 +48,8 @@ class MapIndex
{
public:
template<bool Load>
struct tile_iterator
: std::iterator<std::forward_iterator_tag, MapTile*, std::ptrdiff_t, MapTile**, MapTile* const&>
struct tile_iterator
: std::iterator<std::forward_iterator_tag, MapTile*, std::ptrdiff_t, MapTile**, MapTile* const&>
{
template<typename Pred>
tile_iterator (MapIndex* index, tile_index tile, Pred pred)
@@ -124,10 +124,26 @@ public:
std::function<bool (tile_index const&, MapTile*)> _pred;
};
template<bool Load>
struct TileRange
{
TileRange(tile_iterator<Load>&& begin, tile_iterator<Load>&& end)
: _begin(std::move(begin))
, _end(std::move(end))
{
};
tile_iterator<Load>& begin() { return _begin; }
tile_iterator<Load>& end() { return _end; }
tile_iterator<Load> _begin;
tile_iterator<Load> _end;
};
template<bool Load>
auto tiles (std::function<bool (tile_index const&, MapTile*)> pred= [] (tile_index const&, MapTile*) { return true; } )
{
return std::ranges::subrange(tile_iterator<Load> {this, { 0, 0 }, pred}, tile_iterator<Load>{});
return TileRange<Load>(tile_iterator<Load> {this, { 0, 0 }, pred}, tile_iterator<Load>{});
}
auto loaded_tiles()