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Move everything under the guecs/ directory in src/ so that it meshes better with other projects.

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This commit is contained in:
Zed A. Shaw 2025-05-08 11:20:00 -04:00
parent f520f0bade
commit 3bc05ad164
30 changed files with 74 additions and 73 deletions
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47
src/guecs/dbc.cpp Normal file
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#include "guecs/dbc.hpp"
#include <iostream>
void dbc::log(const string &message, const std::source_location location) {
std::cout << '[' << location.file_name() << ':'
<< location.line() << "|"
<< location.function_name() << "] "
<< message << std::endl;
}
void dbc::sentinel(const string &message, const std::source_location location) {
string err = fmt::format("[SENTINEL!] {}", message);
dbc::log(err, location);
throw dbc::SentinelError{err};
}
void dbc::pre(const string &message, bool test, const std::source_location location) {
if(!test) {
string err = fmt::format("[PRE!] {}", message);
dbc::log(err, location);
throw dbc::PreCondError{err};
}
}
void dbc::pre(const string &message, std::function<bool()> tester, const std::source_location location) {
dbc::pre(message, tester(), location);
}
void dbc::post(const string &message, bool test, const std::source_location location) {
if(!test) {
string err = fmt::format("[POST!] {}", message);
dbc::log(err, location);
throw dbc::PostCondError{err};
}
}
void dbc::post(const string &message, std::function<bool()> tester, const std::source_location location) {
dbc::post(message, tester(), location);
}
void dbc::check(bool test, const string &message, const std::source_location location) {
if(!test) {
string err = fmt::format("[CHECK!] {}\n", message);
dbc::log(err, location);
throw dbc::CheckError{err};
}
}

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src/guecs/lel.cpp Normal file
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#include "guecs/lel.hpp"
#include <fmt/core.h>
#include "guecs/dbc.hpp"
#include <numeric>
#include "./lel_parser.cpp"
namespace lel {
Parser::Parser(int x, int y, int width, int height) :
grid_x(x),
grid_y(y),
grid_w(width),
grid_h(height),
cur(0, 0)
{
}
Parser::Parser() : cur(0, 0) { }
void Parser::position(int x, int y, int width, int height) {
grid_x = x;
grid_y = y;
grid_w = width;
grid_h = height;
}
void Parser::id(std::string name) {
if(name != "_") {
dbc::check(!cells.contains(name),
fmt::format("duplicate cell name {}", name));
cells.insert_or_assign(name, cur);
}
cur = {cur.col + 1, cur.row};
auto& row = grid.back();
row.push_back(name);
}
void Parser::finalize() {
size_t rows = grid.size();
int cell_height = grid_h / rows;
for(auto& row : grid) {
size_t columns = row.size();
int cell_width = grid_w / columns;
dbc::check(cell_width > 0, "invalid cell width calc");
dbc::check(cell_height > 0, "invalid cell height calc");
for(auto& name : row) {
if(name == "_") continue;
auto& cell = cells.at(name);
// ZED: getting a bit hairy but this should work
if(cell.percent) {
// when percent mode we have to take unset to 100%
if(cell.max_w == 0) cell.max_w = 100;
if(cell.max_h == 0) cell.max_h = 100;
cell.max_w *= cell_width * 0.01;
cell.max_h *= cell_height * 0.01;
} else {
if(cell.max_w == 0) cell.max_w = cell_width;
if(cell.max_h == 0) cell.max_h = cell_height;
}
cell.w = cell.expand ? std::min(cell.max_w, grid_w) : std::min(cell_width, cell.max_w);
cell.h = cell.expand ? std::min(cell.max_h, grid_h) : std::min(cell_height, cell.max_h);
dbc::check(cell.h > 0, fmt::format("invalid height cell {}", name));
dbc::check(cell.w > 0, fmt::format("invalid width cell {}", name));
cell.x = grid_x + (cell.col * cell_width);
cell.y = grid_y + (cell.row * cell_height);
// keep the midpoint since it is used a lot
cell.mid_x = std::midpoint(cell.x, cell.x + cell.w);
cell.mid_y = std::midpoint(cell.y, cell.y + cell.h);
// perform alignments
if(cell.right) cell.x += cell_width - cell.w;
if(cell.bottom) cell.y += cell_height - cell.h;
if(cell.center) {
cell.x = cell.mid_x - cell.w / 2;
cell.y = cell.mid_y - cell.h / 2;
}
}
}
}
void Parser::reset() {
cur = {0, 0};
grid.clear();
cells.clear();
}
std::optional<std::string> Parser::hit(int x, int y) {
for(auto& [name, cell] : cells) {
if((x >= cell.x && x <= cell.x + cell.w) &&
(y >= cell.y && y <= cell.y + cell.h)) {
return name;
}
}
return std::nullopt;
}
Cell center(int width, int height, Cell &parent) {
Cell copy = parent;
copy.x = parent.mid_x - width / 2;
copy.y = parent.mid_y - height / 2;
copy.w = width;
copy.h = height;
return copy;
}
}

261
src/guecs/lel_parser.cpp Normal file
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#line 1 ".\\src\\guecs\\lel_parser.rl"
#include "guecs/lel.hpp"
#include <fmt/core.h>
#include <iostream>
namespace lel {
#line 41 ".\\src\\guecs\\lel_parser.rl"
#line 10 ".\\src\\guecs\\lel_parser.cpp"
static const char _Parser_actions[] = {
0, 1, 1, 1, 2, 1, 3, 1,
4, 1, 5, 1, 6, 1, 9, 1,
10, 1, 11, 1, 12, 1, 13, 2,
0, 7, 2, 0, 8, 2, 4, 1,
2, 4, 5
};
static const char _Parser_key_offsets[] = {
0, 0, 4, 20, 33, 35, 39, 41,
44, 56, 61
};
static const char _Parser_trans_keys[] = {
32, 91, 9, 13, 32, 37, 40, 42,
46, 61, 94, 95, 9, 13, 60, 62,
65, 90, 97, 122, 37, 40, 42, 46,
61, 94, 95, 60, 62, 65, 90, 97,
122, 48, 57, 41, 44, 48, 57, 48,
57, 41, 48, 57, 32, 93, 95, 124,
9, 13, 48, 57, 65, 90, 97, 122,
32, 93, 124, 9, 13, 32, 91, 9,
13, 0
};
static const char _Parser_single_lengths[] = {
0, 2, 8, 7, 0, 2, 0, 1,
4, 3, 2
};
static const char _Parser_range_lengths[] = {
0, 1, 4, 3, 1, 1, 1, 1,
4, 1, 1
};
static const char _Parser_index_offsets[] = {
0, 0, 4, 17, 28, 30, 34, 36,
39, 48, 53
};
static const char _Parser_indicies[] = {
0, 2, 0, 1, 3, 4, 5, 6,
7, 9, 7, 10, 3, 8, 10, 10,
1, 4, 5, 6, 7, 9, 7, 10,
8, 10, 10, 1, 11, 1, 12, 13,
14, 1, 15, 1, 16, 17, 1, 18,
20, 19, 21, 18, 19, 19, 19, 1,
22, 23, 24, 22, 1, 25, 2, 25,
1, 0
};
static const char _Parser_trans_targs[] = {
1, 0, 2, 2, 3, 4, 3, 3,
3, 3, 8, 5, 3, 6, 5, 7,
3, 7, 9, 8, 10, 2, 9, 10,
2, 10
};
static const char _Parser_trans_actions[] = {
0, 0, 3, 0, 17, 0, 13, 5,
11, 15, 21, 19, 23, 23, 0, 19,
26, 0, 7, 0, 32, 29, 0, 9,
1, 0
};
static const int Parser_start = 1;
static const int Parser_first_final = 10;
static const int Parser_error = 0;
static const int Parser_en_main = 1;
#line 44 ".\\src\\guecs\\lel_parser.rl"
bool Parser::parse(std::string input) {
reset();
int cs = 0;
const char *start = nullptr;
const char *begin = input.data();
const char *p = input.data();
const char *pe = p + input.size();
std::string tk;
#line 91 ".\\src\\guecs\\lel_parser.cpp"
{
cs = Parser_start;
}
#line 55 ".\\src\\guecs\\lel_parser.rl"
#line 94 ".\\src\\guecs\\lel_parser.cpp"
{
int _klen;
unsigned int _trans;
const char *_acts;
unsigned int _nacts;
const char *_keys;
if ( p == pe )
goto _test_eof;
if ( cs == 0 )
goto _out;
_resume:
_keys = _Parser_trans_keys + _Parser_key_offsets[cs];
_trans = _Parser_index_offsets[cs];
_klen = _Parser_single_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + _klen - 1;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + ((_upper-_lower) >> 1);
if ( (*p) < *_mid )
_upper = _mid - 1;
else if ( (*p) > *_mid )
_lower = _mid + 1;
else {
_trans += (unsigned int)(_mid - _keys);
goto _match;
}
}
_keys += _klen;
_trans += _klen;
}
_klen = _Parser_range_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + (_klen<<1) - 2;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + (((_upper-_lower) >> 1) & ~1);
if ( (*p) < _mid[0] )
_upper = _mid - 2;
else if ( (*p) > _mid[1] )
_lower = _mid + 2;
else {
_trans += (unsigned int)((_mid - _keys)>>1);
goto _match;
}
}
_trans += _klen;
}
_match:
_trans = _Parser_indicies[_trans];
cs = _Parser_trans_targs[_trans];
if ( _Parser_trans_actions[_trans] == 0 )
goto _again;
_acts = _Parser_actions + _Parser_trans_actions[_trans];
_nacts = (unsigned int) *_acts++;
while ( _nacts-- > 0 )
{
switch ( *_acts++ )
{
case 0:
#line 11 ".\\src\\guecs\\lel_parser.rl"
{tk = input.substr(start - begin, p - start); }
break;
case 1:
#line 13 ".\\src\\guecs\\lel_parser.rl"
{}
break;
case 2:
#line 14 ".\\src\\guecs\\lel_parser.rl"
{ grid.push_back(Row()); }
break;
case 3:
#line 15 ".\\src\\guecs\\lel_parser.rl"
{ cur.bottom = (*p) == '.'; }
break;
case 4:
#line 16 ".\\src\\guecs\\lel_parser.rl"
{ id(input.substr(start - begin, p - start)); }
break;
case 5:
#line 17 ".\\src\\guecs\\lel_parser.rl"
{ cur.col = 0; cur.row++; }
break;
case 6:
#line 18 ".\\src\\guecs\\lel_parser.rl"
{ cur.right = (*p) == '>'; }
break;
case 7:
#line 19 ".\\src\\guecs\\lel_parser.rl"
{cur.max_w = std::stoi(tk); }
break;
case 8:
#line 20 ".\\src\\guecs\\lel_parser.rl"
{ cur.max_h = std::stoi(tk); }
break;
case 9:
#line 21 ".\\src\\guecs\\lel_parser.rl"
{ cur.expand = true; }
break;
case 10:
#line 22 ".\\src\\guecs\\lel_parser.rl"
{ cur.center = true; }
break;
case 11:
#line 23 ".\\src\\guecs\\lel_parser.rl"
{ cur.percent = true; }
break;
case 12:
#line 33 ".\\src\\guecs\\lel_parser.rl"
{ start = p; }
break;
case 13:
#line 36 ".\\src\\guecs\\lel_parser.rl"
{start = p;}
break;
#line 209 ".\\src\\guecs\\lel_parser.cpp"
}
}
_again:
if ( cs == 0 )
goto _out;
if ( ++p != pe )
goto _resume;
_test_eof: {}
_out: {}
}
#line 56 ".\\src\\guecs\\lel_parser.rl"
bool good = pe - p == 0;
if(good) {
finalize();
} else {
dbc::log("error at:");
std::cout << p;
}
return good;
}
}

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src/guecs/lel_parser.rl Normal file
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#include "guecs/lel.hpp"
#include <fmt/core.h>
#include <iostream>
namespace lel {
%%{
machine Parser;
alphtype char;
action token {tk = input.substr(start - begin, fpc - start); }
action col {}
action ltab { grid.push_back(Row()); }
action valign { cur.bottom = fc == '.'; }
action id { id(input.substr(start - begin, fpc - start)); }
action row { cur.col = 0; cur.row++; }
action align { cur.right = fc == '>'; }
action setwidth {cur.max_w = std::stoi(tk); }
action setheight { cur.max_h = std::stoi(tk); }
action expand { cur.expand = true; }
action center { cur.center = true; }
action percent { cur.percent = true; }
col = "|" $col;
ltab = "[" $ltab;
rtab = "]" $row;
valign = ("^" | ".") $valign;
expand = "*" $expand;
center = "=" $center;
percent = "%" $percent;
halign = ("<" | ">") $align;
number = digit+ >{ start = fpc; } %token;
setw = ("(" number %setwidth ("," number %setheight)? ")") ;
modifiers = (percent | center | expand | valign | halign | setw);
id = ((alpha | '_')+ :>> (alnum | '_')*) >{start = fpc;} %id;
cell = modifiers* id;
row = space* ltab space* cell space* (col space* cell space*)* space* rtab space*;
main := row+;
}%%
%% write data;
bool Parser::parse(std::string input) {
reset();
int cs = 0;
const char *start = nullptr;
const char *begin = input.data();
const char *p = input.data();
const char *pe = p + input.size();
std::string tk;
%% write init;
%% write exec;
bool good = pe - p == 0;
if(good) {
finalize();
} else {
dbc::log("error at:");
std::cout << p;
}
return good;
}
}

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src/guecs/sfml/backend.cpp Normal file
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#include "guecs/sfml/backend.hpp"
#include "guecs/sfml/shaders.hpp"
#include "guecs/sfml/sound.hpp"
#include "guecs/sfml/textures.hpp"
namespace sfml {
guecs::SpriteTexture Backend::texture_get(const string& name) {
auto sp = textures::get(name);
return {sp.sprite, sp.texture};
}
Backend::Backend() {
sound::init();
shaders::init();
textures::init();
}
void Backend::sound_play(const string& name) {
sound::play(name);
}
void Backend::sound_stop(const string& name) {
sound::stop(name);
}
std::shared_ptr<sf::Shader> Backend::shader_get(const std::string& name) {
return shaders::get(name);
}
bool Backend::shader_updated() {
if(shaders::updated($shaders_version)) {
$shaders_version = shaders::version();
return true;
} else {
return false;
}
}
}

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src/guecs/sfml/components.cpp Normal file
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#include "guecs/ui.hpp"
#include "guecs/sfml/backend.hpp"
namespace guecs {
static Backend* BACKEND = nullptr;
using std::make_shared;
void init(Backend* backend) {
BACKEND = backend;
}
void Textual::init(lel::Cell &cell, shared_ptr<sf::Font> font_ptr) {
dbc::check(font_ptr != nullptr, "you failed to initialize this WideText");
if(font == nullptr) font = font_ptr;
if(text == nullptr) text = make_shared<sf::Text>(*font, content, size);
text->setFillColor(color);
if(centered) {
auto bounds = text->getLocalBounds();
auto text_cell = lel::center(bounds.size.x, bounds.size.y, cell);
// this stupid / 2 is because SFML renders from baseline rather than from the claimed bounding box
text->setPosition({float(text_cell.x), float(text_cell.y) - text_cell.h / 2});
} else {
text->setPosition({float(cell.x + padding * 2), float(cell.y + padding * 2)});
}
text->setCharacterSize(size);
}
void Textual::update(const wstring& new_content) {
content = new_content;
text->setString(content);
}
void Sprite::update(const string& new_name) {
if(new_name != name) {
name = new_name;
auto sprite_texture = BACKEND->texture_get(name);
sprite->setTexture(*sprite_texture.texture);
sprite->setTextureRect(sprite_texture.sprite->getTextureRect());
}
}
void Sprite::init(lel::Cell &cell) {
auto sprite_texture = BACKEND->texture_get(name);
sprite = make_shared<sf::Sprite>(
*sprite_texture.texture,
sprite_texture.sprite->getTextureRect());
sprite->setPosition({
float(cell.x + padding),
float(cell.y + padding)});
auto bounds = sprite->getLocalBounds();
sprite->setScale({
float(cell.w - padding * 2) / bounds.size.x,
float(cell.h - padding * 2) / bounds.size.y});
}
void Rectangle::init(lel::Cell& cell) {
sf::Vector2f size{float(cell.w) - padding * 2, float(cell.h) - padding * 2};
if(shape == nullptr) shape = make_shared<sf::RectangleShape>(size);
shape->setPosition({float(cell.x + padding), float(cell.y + padding)});
shape->setFillColor(color);
shape->setOutlineColor(border_color);
shape->setOutlineThickness(border_px);
}
void Meter::init(lel::Cell& cell) {
bar.init(cell);
}
void Meter::render(lel::Cell& cell) {
float level = std::clamp(percent, 0.0f, 1.0f) * float(cell.w);
// ZED: this 6 is a border width, make it a thing
bar.shape->setSize({std::max(level, 0.0f), float(cell.h - 6)});
}
void Sound::play(bool hover) {
if(!hover) {
BACKEND->sound_play(on_click);
}
}
void Sound::stop(bool hover) {
if(!hover) {
BACKEND->sound_stop(on_click);
}
}
void Background::init() {
sf::Vector2f size{float(w), float(h)};
if(shape == nullptr) shape = make_shared<sf::RectangleShape>(size);
shape->setPosition({float(x), float(y)});
shape->setFillColor(color);
}
void Effect::init(lel::Cell &cell) {
$shader = BACKEND->shader_get(name);
$shader->setUniform("u_resolution", sf::Vector2f({float(cell.w), float(cell.h)}));
$clock = std::make_shared<sf::Clock>();
}
void Effect::step() {
sf::Time cur_time = $clock->getElapsedTime();
float u_time = cur_time.asSeconds();
if(u_time < $u_time_end) {
$shader->setUniform("u_duration", duration);
$shader->setUniform("u_time_end", $u_time_end);
$shader->setUniform("u_time", u_time);
} else {
$active = false;
}
}
void Effect::run() {
$active = true;
sf::Time u_time = $clock->getElapsedTime();
$u_time_end = u_time.asSeconds() + duration;
}
shared_ptr<sf::Shader> Effect::checkout_ptr() {
if(BACKEND->shader_updated()) {
$shader = BACKEND->shader_get(name);
}
return $shader;
}
void Effect::stop() {
$active = false;
}
}

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src/guecs/sfml/config.cpp Normal file
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#include "guecs/sfml/config.hpp"
#include "guecs/dbc.hpp"
#include <fmt/core.h>
using nlohmann::json;
using fmt::format;
Config::Config(const std::string src_path) : $src_path(src_path) {
std::ifstream infile($src_path);
$config = json::parse(infile);
}
json &Config::operator[](const std::string &key) {
dbc::check($config.contains(key), fmt::format("ERROR in config, key {} doesn't exist.", key));
return $config[key];
}
std::wstring Config::wstring(const std::string main_key, const std::string sub_key) {
dbc::check($config.contains(main_key), fmt::format("ERROR wstring main/key in config, main_key {} doesn't exist.", main_key));
dbc::check($config[main_key].contains(sub_key), fmt::format("ERROR wstring in config, main_key/key {}/{} doesn't exist.", main_key, sub_key));
const std::string& str_val = $config[main_key][sub_key];
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> $converter;
return $converter.from_bytes(str_val);
}
std::vector<std::string> Config::keys() {
std::vector<std::string> the_fucking_keys;
for(auto& [key, value] : $config.items()) {
the_fucking_keys.push_back(key);
}
return the_fucking_keys;
}

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src/guecs/sfml/shaders.cpp Normal file
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#include "guecs/sfml/shaders.hpp"
#include "guecs/sfml/config.hpp"
#include "guecs/dbc.hpp"
#include <SFML/Graphics/Image.hpp>
#include <fmt/core.h>
#include <memory>
namespace shaders {
using std::shared_ptr, std::make_shared;
static ShaderManager SMGR;
static bool INITIALIZED = false;
static int VERSION = 0;
inline void configure_shader_defaults(std::shared_ptr<sf::Shader> ptr) {
ptr->setUniform("source", sf::Shader::CurrentTexture);
}
bool load_shader(std::string name, nlohmann::json& settings) {
std::string file_name = settings["file_name"];
auto ptr = std::make_shared<sf::Shader>();
bool good = ptr->loadFromFile(file_name, sf::Shader::Type::Fragment);
if(good) {
configure_shader_defaults(ptr);
SMGR.shaders.try_emplace(name, name, file_name, ptr);
}
return good;
}
void init() {
if(!INITIALIZED) {
dbc::check(sf::Shader::isAvailable(), "no shaders?!");
INITIALIZED = true;
Config config("assets/shaders.json");
bool good = load_shader("ERROR", config["ERROR"]);
dbc::check(good, "Failed to load ERROR shader. Look in assets/shaders.json");
for(auto& [name, settings] : config.json().items()) {
if(name == "ERROR") continue;
dbc::check(!SMGR.shaders.contains(name),
fmt::format("shader name '{}' duplicated in assets/shaders.json", name));
good = load_shader(name, settings);
if(!good) {
dbc::log(fmt::format("failed to load shader {}", name));
SMGR.shaders.insert_or_assign(name, SMGR.shaders.at("ERROR"));
}
}
}
}
std::shared_ptr<sf::Shader> get(const std::string& name) {
dbc::check(INITIALIZED, "you forgot to shaders::init()");
dbc::check(SMGR.shaders.contains(name),
fmt::format("shader name '{}' not in assets/shaders.json", name));
auto& rec = SMGR.shaders.at(name);
return rec.ptr;
}
int reload() {
VERSION++;
INITIALIZED = false;
SMGR.shaders.clear();
init();
return VERSION;
}
bool updated(int my_version) {
return my_version != VERSION;
}
int version() {
return VERSION;
}
};

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src/guecs/sfml/sound.cpp Normal file
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#include "guecs/sfml/sound.hpp"
#include "guecs/sfml/config.hpp"
#include "guecs/dbc.hpp"
#include <fmt/core.h>
namespace sound {
static SoundManager SMGR;
static bool initialized = false;
static bool muted = false;
using namespace fmt;
using std::make_shared;
namespace fs = std::filesystem;
SoundPair& get_sound_pair(const std::string& name) {
dbc::check(initialized, "You need to call sound::init() first");
if(SMGR.sounds.contains(name)) {
// get the sound from the sound map
return SMGR.sounds.at(name);
} else {
dbc::log(fmt::format("Attempted to stop {} sound but not available.",
name));
return SMGR.sounds.at("blank");
}
}
void init() {
if(!initialized) {
Config assets("assets/config.json");
for(auto& el : assets["sounds"].items()) {
load(el.key(), el.value());
}
initialized = true;
}
}
void load(const std::string& name, const std::string& sound_path) {
dbc::check(fs::exists(sound_path), fmt::format("sound file {} does not exist", sound_path));
// create the buffer and keep in the buffer map
auto buffer = make_shared<sf::SoundBuffer>(sound_path);
// set it on the sound and keep in the sound map
auto sound = make_shared<sf::Sound>(*buffer);
sound->setRelativeToListener(false);
sound->setPosition({0.0f, 0.0f, 1.0f});
SMGR.sounds.try_emplace(name, buffer, sound);
}
void play(const std::string& name, bool loop) {
if(muted) return;
auto& pair = get_sound_pair(name);
pair.sound->setLooping(loop);
// play it
pair.sound->play();
}
void stop(const std::string& name) {
auto& pair = get_sound_pair(name);
pair.sound->stop();
}
bool playing(const std::string& name) {
auto& pair = get_sound_pair(name);
auto status = pair.sound->getStatus();
return status == sf::SoundSource::Status::Playing;
}
void play_at(const std::string& name, float x, float y, float z) {
auto& pair = get_sound_pair(name);
pair.sound->setPosition({x, y, z});
pair.sound->play();
}
void mute(bool setting) {
muted = setting;
}
}

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#include "guecs/dbc.hpp"
#include "guecs/sfml/textures.hpp"
#include "guecs/sfml/config.hpp"
#include <SFML/Graphics/Image.hpp>
#include <fmt/core.h>
#include <memory>
namespace textures {
using std::shared_ptr, std::make_shared;
static TextureManager TMGR;
static bool initialized = false;
void load_sprites() {
Config assets("assets/config.json");
for(auto& [name, settings] : assets["sprites"].items()) {
auto texture = make_shared<sf::Texture>(settings["path"]);
texture->setSmooth(assets["graphics"]["smooth_textures"]);
auto sprite = make_shared<sf::Sprite>(*texture);
int width = settings["frame_width"];
int height = settings["frame_height"];
sprite->setTextureRect({{0,0}, {width, height}});
TMGR.sprite_textures.try_emplace(name, sprite, texture);
}
}
void init() {
if(!initialized) {
load_sprites();
initialized = true;
}
}
SpriteTexture get(const std::string& name) {
dbc::check(initialized, "you forgot to call textures::init()");
dbc::check(TMGR.sprite_textures.contains(name),
fmt::format("!!!!! texture pack does not contain {} sprite", name));
auto result = TMGR.sprite_textures.at(name);
dbc::check(result.sprite != nullptr,
fmt::format("bad sprite from textures::get named {}", name));
dbc::check(result.texture != nullptr,
fmt::format("bad texture from textures::get named {}", name));
return result;
}
sf::Image load_image(const std::string& filename) {
sf::Image texture;
bool good = texture.loadFromFile(filename);
dbc::check(good, fmt::format("failed to load {}", filename));
return texture;
}
};

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#include "guecs/ui.hpp"
#include <typeinfo>
namespace guecs {
using std::make_shared;
UI::UI() {
$font = make_shared<sf::Font>(FONT_FILE_NAME);
}
void UI::position(int x, int y, int width, int height) {
$parser.position(x, y, width, height);
}
sf::Vector2f UI::get_position() {
return {float($parser.grid_x), float($parser.grid_y)};
}
sf::Vector2f UI::get_size() {
return {float($parser.grid_w), float($parser.grid_h)};
}
void UI::layout(const string& grid) {
$grid = grid;
bool good = $parser.parse($grid);
dbc::check(good, "LEL parsing failed.");
for(auto& [name, cell] : $parser.cells) {
auto ent = init_entity(name);
set<lel::Cell>(ent, cell);
}
}
Entity UI::init_entity(const string& name) {
auto ent = entity();
// this lets you look up an entity by name
$name_ents.insert_or_assign(name, ent);
// this makes it easier to get the name during querying
set<CellName>(ent, {name});
return ent;
}
Entity UI::entity(const string& name) {
dbc::check($name_ents.contains(name),
fmt::format("GUECS entity {} does not exist. Mispelled cell name?", name));
return $name_ents.at(name);
}
Entity UI::entity(const string& name, int id) {
return entity(fmt::format("{}{}", name, id));
}
void UI::init() {
query<Background>([](auto, auto& bg) {
bg.init();
});
query<lel::Cell, Rectangle>([](auto, auto& cell, auto& rect) {
rect.init(cell);
});
query<lel::Cell, Effect>([](auto, auto& cell, auto& shader) {
shader.init(cell);
});
query<Rectangle, Meter>([](auto, auto& bg, auto &meter) {
bg.shape->setFillColor(meter.color);
});
query<lel::Cell, Meter>([](auto, auto &cell, auto& meter) {
meter.init(cell);
});
query<lel::Cell, Textual>([this](auto, auto& cell, auto& text) {
text.init(cell, $font);
});
query<lel::Cell, Label>([this](auto, auto& cell, auto& text) {
text.init(cell, $font);
});
query<lel::Cell, Sprite>([&](auto, auto &cell, auto &sprite) {
sprite.init(cell);
});
}
void UI::debug_layout(sf::RenderWindow& window) {
query<lel::Cell>([&](const auto, auto &cell) {
sf::RectangleShape rect{{float(cell.w), float(cell.h)}};
rect.setPosition({float(cell.x), float(cell.y)});
rect.setFillColor(sf::Color::Transparent);
rect.setOutlineColor(sf::Color::Red);
rect.setOutlineThickness(2.0f);
window.draw(rect);
});
}
void UI::render(sf::RenderWindow& window) {
if(auto bg = get_if<Background>(MAIN)) {
window.draw(*(bg->shape));
}
query<Effect>([&](auto, auto& shader) {
if(shader.$active) shader.step();
});
query<Rectangle>([&](auto ent, auto& rect) {
render_helper(window, ent, true, rect.shape);
});
query<lel::Cell, Meter>([&](auto ent, auto& cell, auto &meter) {
meter.render(cell);
render_helper(window, ent, true, meter.bar.shape);
});
query<Sprite>([&](auto ent, auto& sprite) {
render_helper(window, ent, false, sprite.sprite);
});
query<Label>([&](auto ent, auto& text) {
render_helper(window, ent, false, text.text);
});
query<Textual>([&](auto ent, auto& text) {
render_helper(window, ent, true, text.text);
});
}
bool UI::mouse(float x, float y, bool hover) {
int action_count = 0;
query<lel::Cell>([&](auto ent, auto& cell) {
if((x >= cell.x && x <= cell.x + cell.w) &&
(y >= cell.y && y <= cell.y + cell.h))
{
do_if<Effect>(ent, [hover](auto& effect) {
effect.$shader->setUniform("hover", hover);
effect.run();
});
do_if<Sound>(ent, [hover](auto& sound) {
// here set that it played then only play once
sound.play(hover);
});
if(hover) return;
click_on(ent);
action_count++;
} else {
do_if<Effect>(ent, [hover](auto& effect) {
effect.stop();
});
do_if<Sound>(ent, [hover](auto& sound) {
// here set that it played then only play once
sound.stop(hover);
});
}
});
return action_count > 0;
}
void UI::show_sprite(const string& region, const string& sprite_name) {
auto ent = entity(region);
if(auto sprite = get_if<Sprite>(ent)) {
sprite->update(sprite_name);
} else {
set_init<Sprite>(ent, {sprite_name});
}
}
void UI::show_text(const string& region, const wstring& content) {
auto ent = entity(region);
if(auto tc = get_if<Textual>(ent)) {
tc->text->setString(content);
} else {
auto &cell = cell_for(ent);
Textual to_set{content, TEXT_SIZE};
to_set.init(cell, $font);
set<Textual>(ent, to_set);
}
}
void UI::click_on(const string& name, bool required) {
auto ent = entity(name);
if(required) {
dbc::check(has<Clickable>(ent),
fmt::format("click_on required '{}' to exist but it doesn't", name));
}
click_on(ent);
}
void UI::click_on(Entity ent) {
if(auto clicked = get_if<Clickable>(ent)) {
if(auto action_data = get_if<ActionData>(ent)) {
clicked->action(ent, action_data->data);
} else {
clicked->action(ent, {});
}
}
}
void UI::show_label(const string& region, const wstring& content) {
auto ent = entity(region);
if(auto tc = get_if<Label>(ent)) {
tc->text->setString(content);
} else {
auto &cell = cell_for(ent);
Label to_set{content, LABEL_SIZE};
to_set.init(cell, $font);
to_set.text->setFillColor(TEXT_COLOR);
set<Label>(ent, to_set);
}
}
wstring to_wstring(const string& str) {
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> $converter;
return $converter.from_bytes(str);
}
}