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#include "anim-traits.hpp"
#include "atlas-loader-storage.hpp"
#include "anim-cell.hpp"
#include "src/anim-atlas.hpp"
#include "src/tile-defs.hpp"
#include "loader.hpp"
#include "serialize/json-helper.hpp"
#include "serialize/anim.hpp"
#include "compat/exception.hpp"
#include <cr/Move.h>
#include <cr/StringView.h>
#include <cr/Array.h>
#include <cr/StridedArrayView.h>
#include <cr/Pointer.h>
#include <cr/Optional.h>
#include <mg/ImageData.h>
#include <mg/ImageView.h>
namespace floormat::loader_detail {
using anim_traits = atlas_loader_traits<anim_atlas>;
StringView anim_traits::loader_name() { return "anim_atlas"_s; }
auto anim_traits::atlas_of(const Cell& x) -> const std::shared_ptr<Atlas>& { return x.atlas; }
auto anim_traits::atlas_of(Cell& x) -> std::shared_ptr<Atlas>& { return x.atlas; }
StringView anim_traits::name_of(const Cell& x) { return x.name; }
String& anim_traits::name_of(Cell& x) { return x.name; }
void anim_traits::atlas_list(Storage& s)
{
fm_debug_assert(s.name_map.empty());
s.cell_array = {};
s.name_map[loader.INVALID] = -1uz;
}
auto anim_traits::make_invalid_atlas(Storage& s) -> Cell
{
fm_debug_assert(!s.invalid_atlas);
constexpr auto size = Vector2ui{tile_size_xy*3/4};
constexpr auto ground = Vector2i(size/2);
auto frame = anim_frame {
.ground = ground,
.offset = {},
.size = size,
};
auto groups = Array<anim_group>{ValueInit, 1};
groups[0] = anim_group {
.name = "n"_s,
.frames = array({ frame }),
};
auto def = anim_def {
.object_name = loader.INVALID,
.anim_name = loader.INVALID,
.groups = Utility::move(groups),
.pixel_size = size,
.scale = anim_scale::fixed{size.x(), true},
.nframes = 1,
};
auto atlas = std::make_shared<class anim_atlas>(loader.INVALID, loader.make_error_texture(size), std::move(def));
auto info = anim_cell {
.atlas = atlas,
.name = loader.INVALID,
};
return info;
}
auto anim_traits::make_atlas(StringView name, const Cell&) -> std::shared_ptr<Atlas>
{
char buf[fm_FILENAME_MAX];
auto json_path = loader.make_atlas_path(buf, {}, name, ".json"_s);
auto anim_info = json_helper::from_json<struct anim_def>(json_path);
for (anim_group& group : anim_info.groups)
{
if (!group.mirror_from.isEmpty())
{
const auto *begin = anim_info.groups.data(), *end = begin + anim_info.groups.size();
const auto* it = std::find_if(begin, end, [&](const anim_group& x) { return x.name == group.mirror_from; });
if (it == end)
fm_throw("can't find group '{}' to mirror from '{}'"_cf, group.mirror_from, group.name);
group.frames = array(ArrayView<const anim_frame>{it->frames.data(), it->frames.size()});
for (anim_frame& f : group.frames)
f.ground = Vector2i((Int)f.size[0] - f.ground[0], f.ground[1]);
}
}
auto tex = loader.texture(""_s, name);
fm_soft_assert(!anim_info.object_name.isEmpty());
fm_soft_assert(anim_info.pixel_size.product() > 0);
fm_soft_assert(!anim_info.groups.isEmpty());
fm_soft_assert(anim_info.nframes > 0);
fm_soft_assert(anim_info.nframes == 1 || anim_info.fps > 0);
const auto size = tex.pixels().size();
const auto width = size[1], height = size[0];
fm_soft_assert(anim_info.pixel_size[0] == width && anim_info.pixel_size[1] == height);
auto atlas = std::make_shared<class anim_atlas>(name, tex, std::move(anim_info));
return atlas;
}
auto anim_traits::make_cell(StringView name) -> Optional<Cell>
{
return { InPlace, Cell { .atlas = {}, .name = name } };
}
} // namespace floormat::loader_detail
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