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#include "tile-editor.hpp"
#include "tile-atlas.hpp"
#include "world.hpp"
#include "keys.hpp"
#include "loader/loader.hpp"
#include "random.hpp"
#include "serialize/json-helper.hpp"
#include "serialize/tile-atlas.hpp"
#include <Corrade/Containers/PairStl.h>
#include <Corrade/Utility/Path.h>
namespace floormat {
tile_editor::tile_editor(editor_mode mode, StringView name) : _name{ name}, _mode{ mode}
{
load_atlases();
}
void tile_editor::load_atlases()
{
using atlas_array = std::vector<std::shared_ptr<tile_atlas>>;
const auto filename = _name + ".json";
for (auto& atlas : json_helper::from_json<atlas_array>(Path::join(loader_::IMAGE_PATH, filename)))
{
const auto [name, _ext] = Path::splitExtension(atlas->name());
auto& [_, vec] = _permutation;
vec.reserve(atlas->num_tiles());
_atlases[name] = atlas;
}
}
std::shared_ptr<tile_atlas> tile_editor::maybe_atlas(StringView str)
{
if (auto it = _atlases.find(str); it != _atlases.end())
return it->second;
else
return nullptr;
}
std::shared_ptr<tile_atlas> tile_editor::atlas(StringView str)
{
if (auto ptr = maybe_atlas(str))
return ptr;
else
fm_abort("no such atlas: %s", str.cbegin());
}
StringView tile_editor::name() const noexcept { return _name; }
void tile_editor::clear_selection()
{
_selected_tile = {};
_permutation = {};
_selection_mode = sel_none;
}
void tile_editor::select_tile(const std::shared_ptr<tile_atlas>& atlas, std::size_t variant)
{
fm_assert(atlas);
clear_selection();
_selection_mode = sel_tile;
_selected_tile = { atlas, variant_t(variant % atlas->num_tiles()) };
}
void tile_editor::select_tile_permutation(const std::shared_ptr<tile_atlas>& atlas)
{
fm_assert(atlas);
clear_selection();
_selection_mode = sel_perm;
_permutation = { atlas, {} };
}
bool tile_editor::is_tile_selected(const std::shared_ptr<const tile_atlas>& atlas, std::size_t variant) const
{
return atlas && _selection_mode == sel_tile && _selected_tile &&
atlas == _selected_tile.atlas && variant == _selected_tile.variant;
}
bool tile_editor::is_permutation_selected(const std::shared_ptr<const tile_atlas>& atlas) const
{
const auto& [perm, _] = _permutation;
return atlas && _selection_mode == sel_perm && perm == atlas;
}
bool tile_editor::is_atlas_selected(const std::shared_ptr<const tile_atlas>& atlas) const
{
switch (_selection_mode)
{
default:
case sel_none:
return false;
case sel_perm:
return is_permutation_selected(atlas);
case sel_tile:
return atlas && _selected_tile && atlas == _selected_tile.atlas;
}
}
template<std::random_access_iterator T>
void fisher_yates(T begin, T end)
{
const auto N = std::distance(begin, end);
for (auto i = N-1; i >= 1; i--)
{
const auto j = random(i+1);
using std::swap;
swap(begin[i], begin[j]);
}
}
tile_image_proto tile_editor::get_selected_perm()
{
auto& [atlas, vec] = _permutation;
const auto N = (variant_t)atlas->num_tiles();
if (N == 0)
return {};
if (vec.empty())
{
for (variant_t i = 0; i < N; i++)
vec.push_back(i);
fisher_yates(vec.begin(), vec.end());
}
const auto idx = vec.back();
vec.pop_back();
return {atlas, idx};
}
tile_image_proto tile_editor::get_selected()
{
switch (_selection_mode)
{
default:
fm_warn_once("invalid editor mode '%u'", (unsigned)_selection_mode);
[[fallthrough]];
case sel_none:
return {};
case sel_tile:
return _selected_tile;
case sel_perm:
return get_selected_perm();
}
}
void tile_editor::place_tile(world& world, global_coords pos, const tile_image_proto& img)
{
auto [c, t] = world[pos];
switch (_mode)
{
case editor_mode::none:
break;
case editor_mode::floor:
c.mark_ground_modified();
t.ground() = img;
break;
case editor_mode::walls:
c.mark_walls_modified();
switch (_rotation)
{
case editor_wall_rotation::N:
t.wall_north() = img;
break;
case editor_wall_rotation::W:
t.wall_west() = img;
break;
}
break;
default:
fm_warn_once("wrong editor mode '%d' for place_tile()", (int)_mode);
break;
}
}
void tile_editor::toggle_rotation()
{
if (_rotation == editor_wall_rotation::W)
_rotation = editor_wall_rotation::N;
else
_rotation = editor_wall_rotation::W;
}
void tile_editor::set_rotation(editor_wall_rotation r)
{
switch (r)
{
default:
fm_warn_once("invalid rotation '0x%hhx", (char)r);
return;
case editor_wall_rotation::W:
case editor_wall_rotation::N:
_rotation = r;
break;
}
}
auto tile_editor::check_snap(int mods) const -> editor_snap_mode
{
const bool ctrl = mods & kmod_ctrl, shift = mods & kmod_shift;
if (!(ctrl | shift))
return editor_snap_mode::none;
switch (_mode)
{
default:
case editor_mode::none:
return editor_snap_mode::none;
case editor_mode::walls:
switch (_rotation)
{
case editor_wall_rotation::N:
return editor_snap_mode::horizontal;
case editor_wall_rotation::W:
return editor_snap_mode::vertical;
default: return editor_snap_mode::none;
}
case editor_mode::floor:
if (shift)
return editor_snap_mode::horizontal;
if (ctrl)
return editor_snap_mode::vertical;
return editor_snap_mode::none;
}
}
bool tile_editor::can_rotate() const
{
return _mode == editor_mode::walls;
}
} // namespace floormat
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