A retro style homage to 80s dungeon crawlers hand crafted in C++.
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raycaster/tools/icongen.cpp

240 lines
7.2 KiB

#include <fmt/core.h>
#include "dbc.hpp"
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/RenderWindow.hpp>
#include "constants.hpp"
#include "config.hpp"
#include <filesystem>
#include "shiterator.hpp"
#include <functional>
#include <iostream>
namespace fs = std::filesystem;
constexpr const int TILE_COUNT=10;
constexpr const sf::Color DEFAULT_COLOR{255, 255, 255, 255};
constexpr const size_t DEFAULT_DIM=64;
using namespace nlohmann;
using namespace shiterator;
using MapRow = BaseRow<wchar_t>;
using MapGrid = Base<wchar_t>;
using BoolRow = BaseRow<bool>;
using BoolGrid = Base<bool>;
struct MapConfig {
MapGrid map = make<wchar_t>(TILE_COUNT, TILE_COUNT);
BoolGrid centered = make<bool>(TILE_COUNT, TILE_COUNT);
std::unordered_map<wchar_t, sf::Color> colors;
std::unordered_map<wchar_t, sf::Color> backgrounds;
each_row_t<MapGrid> it{map};
};
struct MapTileBuilder {
unsigned int $font_size = 20;
sf::Glyph $glyph;
sf::Font $font{FONT_FILE_NAME};
std::shared_ptr<sf::RenderTexture> $render = nullptr;
sf::Vector2i $size;
sf::Vector2i $image_size;
sf::RenderTexture $temp_render;
MapTileBuilder(size_t x, size_t y) :
$size(x, y),
$image_size($size.x * TILE_COUNT, $size.y * TILE_COUNT),
$temp_render({(unsigned int)$size.x, (unsigned int)$size.y})
{
$font.setSmooth(false);
}
void best_size(wchar_t for_char, bool centered) {
float factor = centered ? 0.8f : 1.0f;
sf::Vector2i adjusted_size = {int($size.x * factor), int($size.y * factor)};
$font_size = 20; // reset the size
// fit the glyph in our box height
auto temp = $font.getGlyph(for_char, $font_size, false);
auto temp_size = $font_size;
while(temp.textureRect.size.y <= adjusted_size.y
&& temp.textureRect.size.x <= adjusted_size.x)
{
$glyph = temp;
$font_size = temp_size;
temp_size++;
temp = $font.getGlyph(for_char, temp_size, false);
}
}
void save_image(std::string icon_path) {
dbc::check($render != nullptr, "You have to call run() first.");
fs::path out_path{icon_path};
if(fs::exists(out_path)) {
fs::remove(out_path);
}
sf::Image out_img = $render->getTexture().copyToImage();
bool worked = out_img.saveToFile(out_path);
dbc::check(worked, "Failed to write screenshot.png");
}
void run(MapConfig& config) {
sf::Vector2u crop{$size.x * (unsigned int)config.it.width, $size.y * (unsigned int)config.it.y};
$render = std::make_shared<sf::RenderTexture>(crop);
$render->clear({0,0,0,0});
$render->setSmooth(false);
sf::Vector2f cell_pos{0.0f,0.0f};
sf::RectangleShape background({(float)$size.x, (float)$size.y});
for(each_row_t<MapGrid> it{config.map}; it.next();) {
// a 0 slot means we're done
if(config.map[it.y][it.x] == 0) break;
cell_pos.x = it.x * $size.x;
cell_pos.y = it.y * $size.y;
bool is_centered = config.centered[it.y][it.x];
wchar_t display_char = config.map[it.y][it.x];
std::wstring content{display_char};
auto bg = config.backgrounds.at(display_char);
auto fg = config.colors.at(display_char);
best_size(display_char, is_centered);
sf::Text icon{$font, content, $font_size};
icon.setFillColor({255, 255, 255, 255});
$temp_render.draw(icon);
$temp_render.clear({0,0,0,0});
auto& font_texture = $font.getTexture($font_size);
sf::Sprite sprite{font_texture, $glyph.textureRect};
auto t_size = $glyph.textureRect.size;
dbc::check($size.x - t_size.x >= 0, "font too big on x");
dbc::check($size.y - t_size.y >= 0, "font too big on y");
fmt::println("display: {}, bg: {},{},{},{}; fg: {},{},{},{}",
(int)display_char, bg.r, bg.g, bg.b, bg.a, fg.r, fg.g, fg.b, fg.a);
// draw the background first
background.setFillColor(bg);
if(is_centered) {
sf::Vector2f center{
float(($size.x - t_size.x) / 2),
float(($size.y - t_size.y) / 2)};
sprite.setScale({1.0f, 1.0f});
sprite.setPosition({cell_pos.x + center.x, cell_pos.y + center.y});
} else {
sf::Vector2f scale{float($size.x) / float(t_size.x), float($size.y) / float(t_size.y)};
sprite.setScale(scale);
sprite.setPosition(cell_pos);
background.setPosition(cell_pos);
}
sprite.setColor(fg);
$render->draw(background);
$render->draw(sprite);
$render->display();
}
}
void save_config(MapConfig& config, const std::string &path) {
(void)path;
json result = json::array();
for(each_row_t<MapGrid> it{config.map}; it.next();) {
if(config.map[it.y][it.x] == 0) break;
json val;
val["x"] = $size.x * it.x;
val["y"] = $size.y * it.y;
val["display"] = (int)config.map[it.y][it.x];
val["centered"] = config.centered[it.y][it.x];
result.push_back(val);
}
std::ofstream o(path, std::ios::out | std::ios::binary);
o << std::setw(4) << result << std::endl;
}
};
void load_config(MapConfig& config, bool is_centered, std::string path, std::function<json&(json&)> finder)
{
Config tiles(path);
for(auto [key, val] : tiles.json().items()) {
config.it.next();
auto data = finder(val);
wchar_t display = data["display"];
config.map[config.it.y][config.it.x] = display;
config.centered[config.it.y][config.it.x] = is_centered;
dbc::check(!config.colors.contains(display),
fmt::format("duplicate color for display={} key={}",
(int)display, (std::string)key));
if(data.contains("foreground")) {
auto fg_color = data["foreground"];
sf::Color fg{fg_color[0], fg_color[1], fg_color[2]};
fmt::println("TILE {}, display: {} has foreground: {},{},{}", key, (int)display, fg.r, fg.g, fg.b);
config.colors.insert_or_assign(display, fg);
} else {
fmt::println("TILE {}, {} has DEFAULT COLOR", key, (int)display);
config.colors.insert_or_assign(display, DEFAULT_COLOR);
}
if(data.contains("background")) {
auto bg_color = data["background"];
sf::Color bg{bg_color[0], bg_color[1], bg_color[2]};
fmt::println("TILE {} display: {} has background: {},{},{}", key, (int)display, bg.r, bg.g, bg.b);
config.backgrounds.insert_or_assign(display, bg);
} else {
fmt::println("TILE {} display: {} has transparent background", key, (int)display);
sf::Color bg{0, 0, 0, 0};
config.backgrounds.insert_or_assign(display, bg);
}
}
}
json& component_display(json& val) {
auto& components = val["components"];
for(auto& comp : components) {
if(comp["_type"] == "Tile") {
return comp;
}
}
dbc::log("BAD CHAR");
return val;
}
int main() {
MapConfig config;
load_config(config, false, "./assets/tiles.json", [](json& val) -> json& {
return val;
});
load_config(config, true, "./assets/items.json", component_display);
load_config(config, true, "./assets/devices.json", component_display);
load_config(config, true, "./assets/enemies.json", component_display);
fmt::println("-----------------------------------------");
MapTileBuilder builder(DEFAULT_DIM, DEFAULT_DIM);
builder.run(config);
builder.save_image("./assets/map_tiles.png");
builder.save_config(config, "./assets/map_tiles.json");
return 0;
}