1 files changed, 112 insertions, 0 deletions
diff --git a/loader/ground-atlas.cpp b/loader/ground-atlas.cpp
new file mode 100644
index 00000000..d93313ea
--- /dev/null
+++ b/loader/ground-atlas.cpp
@@ -0,0 +1,112 @@
+#include "impl.hpp"
+#include "ground-info.hpp"
+#include "src/ground-atlas.hpp"
+#include "compat/exception.hpp"
+#include "serialize/json-helper.hpp"
+#include "serialize/corrade-string.hpp"
+#include <Corrade/Containers/ArrayViewStl.h>
+#include <Corrade/Utility/Path.h>
+#include <Magnum/Trade/ImageData.h>
+#include <Magnum/ImageView.h>
+
+namespace floormat {
+
+using nlohmann::json;
+using loader_detail::loader_impl;
+
+[[maybe_unused]] static void from_json(const json& j, ground_info& val)
+{
+}
+
+[[maybe_unused]] static void to_json(json& j, const ground_info& val)
+{
+}
+
+} // namespace floormat
+
+namespace floormat::loader_detail {
+
+std::shared_ptr<ground_atlas> loader_impl::get_ground_atlas(StringView name, StringView dir, Vector2ub size, pass_mode pass)
+{
+    fm_assert(name != "<invalid>"_s);
+
+    char buf[FILENAME_MAX];
+    auto filename = make_atlas_path(buf, dir, name);
+    auto tex = texture(""_s, filename);
+
+    auto atlas = std::make_shared<class ground_atlas>(filename, name, tex, size, pass);
+    return atlas;
+}
+
+// todo copypasta from wall-atlas.cpp
+std::shared_ptr<class ground_atlas> loader_impl::ground_atlas(StringView name, bool fail_ok) noexcept(false)
+{
+    fm_soft_assert(check_atlas_name(name));
+    auto it = ground_atlas_map.find(name);
+
+    if (it != ground_atlas_map.end()) [[likely]]
+    {
+        if (it->second == (ground_info*)-1) [[unlikely]]
+        {
+           if (fail_ok) [[likely]]
+                goto missing_ok;
+            else
+                goto error;
+        }
+        else if (!it->second->atlas)
+            return it->second->atlas = get_ground_atlas(name, loader.GROUND_TILESET_PATH, it->second->size, it->second->pass);
+        else
+            return it->second->atlas;
+    }
+    else
+    {
+        if (fail_ok) [[likely]]
+            goto missing;
+        else
+            goto error;
+    }
+
+missing:
+    {
+        missing_ground_atlases.push_back(String { AllocatedInit, name });
+        auto string_view = StringView{missing_ground_atlases.back()};
+        ground_atlas_map[string_view] = (ground_info*)-1;
+    }
+
+    if (name != "<invalid>")
+        DBG_nospace << "ground_atlas '" << name << "' doesn't exist";
+
+missing_ok:
+    return make_invalid_ground_atlas().atlas;
+
+error:
+    fm_throw("no such ground atlas '{}'"_cf, name);
+}
+
+ArrayView<const ground_info> loader_impl::ground_atlas_list() noexcept(false)
+{
+    if (ground_atlas_map.empty()) [[unlikely]]
+        get_ground_atlas_list();
+    fm_assert(!ground_atlas_map.empty());
+    return ground_atlas_array;
+}
+
+void loader_impl::get_ground_atlas_list()
+{
+    fm_assert(ground_atlas_map.empty());
+
+    ground_atlas_array = json_helper::from_json<std::vector<ground_info>>(
+        Path::join(loader_::GROUND_TILESET_PATH, "ground.json"_s));
+    ground_atlas_array.shrink_to_fit();
+    ground_atlas_map.clear();
+    ground_atlas_map.reserve(ground_atlas_array.size()*2);
+
+    for (auto& x : ground_atlas_array)
+    {
+
+    }
+
+    fm_assert(!ground_atlas_map.empty());
+}
+
+} // namespace floormat::loader_detail