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#include "impl.hpp"
#include "compat/assert.hpp"
#include "compat/exception.hpp"
#include "src/emplacer.hpp"
#include "src/anim-atlas.hpp"
#include <cstdio>
#include <algorithm>
#include <Corrade/Containers/ArrayView.h>
#include <Corrade/Containers/Pair.h>
#include <Corrade/Containers/StridedArrayView.h>
#include <Corrade/Containers/String.h>
#include <Corrade/Utility/Path.h>
#include <Magnum/Trade/ImageData.h>
// todo rename file to 'scenery.cpp'
namespace floormat {
StringView loader_::make_atlas_path(char(&buf)[FILENAME_MAX], StringView dir, StringView name)
{
fm_soft_assert(!dir || dir[dir.size()-1] == '/');
const auto dirsiz = dir.size(), namesiz = name.size();
fm_soft_assert(dirsiz + namesiz + 1 < FILENAME_MAX);
std::memcpy(buf, dir.data(), dirsiz);
std::memcpy(&buf[dirsiz], name.data(), namesiz);
auto len = dirsiz + namesiz;
buf[len] = '\0';
return StringView{buf, len, StringViewFlag::NullTerminated};
}
bool loader_::check_atlas_name(StringView str) noexcept
{
constexpr auto first_char =
"@_0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"_s;
if (str == "<invalid>"_s)
return true;
if (!str || !first_char.find(str[0]))
return false;
if (str.findAny("\\\"'\n\r\t\a\033\0|$!%{}^*?<>&;:^"_s) || str.find("/."_s) || str.find("//"_s))
return false;
return true;
}
} // namespace floormat
namespace floormat::loader_detail {
ArrayView<const String> loader_impl::anim_atlas_list()
{
if (anim_atlases.empty())
get_anim_atlas_list();
fm_assert(!anim_atlases.empty());
return { anim_atlases.data(), anim_atlases.size() };
}
std::shared_ptr<anim_atlas> loader_impl::anim_atlas(StringView name, StringView dir) noexcept(false)
{
fm_soft_assert(!dir || dir[dir.size()-1] == '/');
char buf[FILENAME_MAX];
auto path = make_atlas_path(buf, dir, name);
if (auto it = anim_atlas_map.find(path); it != anim_atlas_map.end())
return it->second;
else
{
fm_soft_assert(check_atlas_name(name));
auto anim_info = deserialize_anim(path + ".json");
for (anim_group& group : anim_info.groups)
{
if (!group.mirror_from.isEmpty())
{
auto it = std::find_if(anim_info.groups.cbegin(), anim_info.groups.cend(),
[&](const anim_group& x) { return x.name == group.mirror_from; });
if (it == anim_info.groups.cend())
fm_throw("can't find group '{}' to mirror from '{}'"_cf, group.mirror_from, group.name);
group.frames = array(arrayView(it->frames));
for (anim_frame& f : group.frames)
f.ground = Vector2i((Int)f.size[0] - f.ground[0], f.ground[1]);
}
}
auto tex = texture(""_s, path);
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>(path, tex, std::move(anim_info));
return anim_atlas_map[atlas->name()] = atlas;
}
}
void loader_impl::get_anim_atlas_list()
{
anim_atlases.clear();
using f = Path::ListFlag;
constexpr auto flags = f::SkipDirectories | f::SkipDotAndDotDot | f::SkipSpecial | f::SortAscending;
if (const auto list = Path::list(ANIM_PATH, flags); list)
{
anim_atlases.reserve(list->size());
constexpr auto suffix = ".json"_s;
for (StringView str : *list)
if (str.hasSuffix(suffix))
anim_atlases.emplace_back(str.exceptSuffix(suffix.size()));
}
anim_atlases.shrink_to_fit();
fm_assert(!anim_atlases.empty());
}
} // namespace floormat::loader_detail
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