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#include "Utilities.hpp"
#include <numbers>
#include <godot_cpp/classes/file_access.hpp>
#include <godot_cpp/classes/resource_loader.hpp>
#include <godot_cpp/classes/translation_server.hpp>
#include <godot_cpp/variant/utility_functions.hpp>
#include <gli/convert.hpp>
#include <gli/load_dds.hpp>
using namespace godot;
using namespace OpenVic;
/* Int to 2 decimal place string in terms of the largest suffix less than or equal to it,
* or normal integer string if less than the smallest suffix. */
String Utilities::int_to_formatted_string(int64_t val) {
static const std::vector<std::pair<int64_t, String>> suffixes {
{ 1'000'000'000'000, "T" },
{ 1'000'000'000, "B" },
{ 1'000'000, "M" },
{ 1'000, "k" }
};
static constexpr int64_t decimal_places_multiplier = 100;
const bool negative = val < 0;
if (negative) {
val = -val;
}
for (auto const& [suffix_val, suffix_str] : suffixes) {
if (val >= suffix_val) {
const int64_t whole = val / suffix_val;
const int64_t frac = (val * decimal_places_multiplier / suffix_val) % decimal_places_multiplier;
return (negative ? "-" : "") + String::num_int64(whole) + "." +
(frac < 10 ? "0" : "") + String::num_int64(frac) + suffix_str;
}
}
return (negative ? "-" : "") + String::num_int64(val);
}
/* Float to formatted to 4 decimal place string. */
String Utilities::float_to_formatted_string(float val) {
static constexpr int64_t decimal_places = 4;
return String::num(val, decimal_places).pad_decimals(decimal_places);
}
/* Date formatted like this: "January 1, 1836" (with the month localised, if possible). */
String Utilities::date_to_formatted_string(Date date) {
std::string const& month_name = date.get_month_name();
const String day_and_year = " " + String::num_int64(date.get_day()) + ", " + String::num_int64(date.get_year());
TranslationServer const* server = TranslationServer::get_singleton();
if (server != nullptr) {
return server->translate(std_to_godot_string_name(month_name)) + day_and_year;
} else {
return std_to_godot_string(month_name) + day_and_year;
}
}
Ref<Resource> Utilities::load_resource(String const& path, String const& type_hint) {
ResourceLoader* loader = ResourceLoader::get_singleton();
ERR_FAIL_NULL_V(loader, nullptr);
return loader->load(path, type_hint);
}
static Ref<Image> load_dds_image(String const& path) {
gli::texture2d texture { gli::load_dds(Utilities::godot_to_std_string(path)) };
if (texture.empty()) {
UtilityFunctions::push_error("Failed to load DDS file: ", path);
return nullptr;
}
static constexpr gli::format expected_format = gli::FORMAT_BGRA8_UNORM_PACK8;
const bool needs_bgr_to_rgb = texture.format() == expected_format;
if (!needs_bgr_to_rgb) {
texture = gli::convert(texture, expected_format);
if (texture.empty()) {
UtilityFunctions::push_error("Failed to convert DDS file: ", path);
return nullptr;
}
}
const gli::texture2d::extent_type extent { texture.extent() };
const int width = extent.x, height = extent.y, size = width * height * 4;
/* Only fail if there aren't enough bytes, everything seems to work fine if there are extra bytes and we ignore them */
if (size > texture.size()) {
UtilityFunctions::push_error(
"Texture size ", static_cast<int64_t>(texture.size()), " mismatched with dims-based size ", size, " for ", path
);
return nullptr;
}
PackedByteArray pixels;
pixels.resize(size);
/* Index offset used to control whether we are reading */
const size_t rb_idx = 2 * needs_bgr_to_rgb;
uint8_t const* ptr = static_cast<uint8_t const*>(texture.data());
for (size_t i = 0; i < size; i += 4) {
pixels[i + 0] = ptr[i + rb_idx];
pixels[i + 1] = ptr[i + 1];
pixels[i + 2] = ptr[i + 2 - rb_idx];
pixels[i + 3] = ptr[i + 3];
}
return Image::create_from_data(width, height, false, Image::FORMAT_RGBA8, pixels);
}
Ref<Image> Utilities::load_godot_image(String const& path) {
if (path.ends_with(".dds")) {
return load_dds_image(path);
}
return Image::load_from_file(path);
}
Ref<FontFile> Utilities::load_godot_font(String const& fnt_path, Ref<Image> const& image) {
Ref<FontFile> font;
font.instantiate();
const Error err = font->load_bitmap_font(fnt_path);
font->set_texture_image(0, { font->get_fixed_size(), 0 }, 0, image);
if (err != OK) {
UtilityFunctions::push_error("Failed to load font (error ", err, "): ", fnt_path);
}
return font;
}
Ref<Image> Utilities::make_solid_colour_image(Color const& colour, int32_t width, int32_t height, Image::Format format) {
const Ref<Image> result = Image::create(width, height, false, format);
ERR_FAIL_NULL_V(result, nullptr);
result->fill(colour);
return result;
}
Ref<ImageTexture> Utilities::make_solid_colour_texture(Color const& colour, int32_t width, int32_t height, Image::Format format) {
const Ref<Image> image = make_solid_colour_image(colour, width, height, format);
ERR_FAIL_NULL_V(image, nullptr);
const Ref<ImageTexture> result = ImageTexture::create_from_image(image);
ERR_FAIL_NULL_V(result, nullptr);
return result;
}
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