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-rw-r--r--extension/src/MapSingleton.cpp335
1 files changed, 335 insertions, 0 deletions
diff --git a/extension/src/MapSingleton.cpp b/extension/src/MapSingleton.cpp
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+++ b/extension/src/MapSingleton.cpp
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+#include "MapSingleton.hpp"
+
+#include <godot_cpp/variant/utility_functions.hpp>
+#include <godot_cpp/classes/file_access.hpp>
+#include <godot_cpp/classes/json.hpp>
+
+using namespace godot;
+using namespace OpenVic2;
+
+MapSingleton* MapSingleton::singleton = nullptr;
+
+void MapSingleton::_bind_methods() {
+ ClassDB::bind_method(D_METHOD("load_province_identifier_file", "file_path"), &MapSingleton::load_province_identifier_file);
+ ClassDB::bind_method(D_METHOD("load_region_file", "file_path"), &MapSingleton::load_region_file);
+ ClassDB::bind_method(D_METHOD("load_province_shape_file", "file_path"), &MapSingleton::load_province_shape_file);
+
+ ClassDB::bind_method(D_METHOD("get_province_index_from_uv_coords", "coords"), &MapSingleton::get_province_index_from_uv_coords);
+ ClassDB::bind_method(D_METHOD("get_province_identifier_from_uv_coords", "coords"), &MapSingleton::get_province_identifier_from_uv_coords);
+ ClassDB::bind_method(D_METHOD("get_width"), &MapSingleton::get_width);
+ ClassDB::bind_method(D_METHOD("get_height"), &MapSingleton::get_height);
+ ClassDB::bind_method(D_METHOD("get_province_index_image"), &MapSingleton::get_province_index_image);
+ ClassDB::bind_method(D_METHOD("get_province_colour_image"), &MapSingleton::get_province_colour_image);
+
+ ClassDB::bind_method(D_METHOD("update_colour_image"), &MapSingleton::update_colour_image);
+ ClassDB::bind_method(D_METHOD("get_mapmode_count"), &MapSingleton::get_mapmode_count);
+ ClassDB::bind_method(D_METHOD("get_mapmode_identifier", "index"), &MapSingleton::get_mapmode_identifier);
+ ClassDB::bind_method(D_METHOD("set_mapmode", "identifier"), &MapSingleton::set_mapmode);
+}
+
+MapSingleton* MapSingleton::get_singleton() {
+ return singleton;
+}
+
+/* REQUIREMENTS:
+ * MAP-21, MAP-25
+ */
+MapSingleton::MapSingleton() {
+ ERR_FAIL_COND(singleton != nullptr);
+ singleton = this;
+
+ using mapmode_t = std::pair<std::string, Mapmode::colour_func_t>;
+ const std::vector<mapmode_t> mapmodes = {
+ { "mapmode_province", [](Map const&, Province const& province) -> Province::colour_t { return province.get_colour(); } },
+ { "mapmode_region", [](Map const&, Province const& province) -> Province::colour_t {
+ Region const* region = province.get_region();
+ if (region != nullptr) return region->get_provinces().front()->get_colour();
+ return province.get_colour();
+ } },
+ { "mapmode_index", [](Map const& map, Province const& province) -> Province::colour_t {
+ const uint8_t f = float(province.get_index()) / float(map.get_province_count()) * 255.0f;
+ return (f << 16) | (f << 8) | f;
+ } }
+ };
+ std::string error_message = "";
+ for (mapmode_t mapmode : mapmodes)
+ if (map.add_mapmode(mapmode.first, mapmode.second, error_message) != SUCCESS)
+ UtilityFunctions::push_error(error_message.c_str());
+}
+
+MapSingleton::~MapSingleton() {
+ ERR_FAIL_COND(singleton != this);
+ singleton = nullptr;
+}
+
+Error MapSingleton::parse_json_dictionary_file(String const& file_description, String const& file_path,
+ String const& identifier_prefix, parse_json_entry_func_t parse_entry) const {
+ UtilityFunctions::print("Loading ", file_description, " file: ", file_path);
+ Ref<FileAccess> file = FileAccess::open(file_path, FileAccess::ModeFlags::READ);
+ Error err = FileAccess::get_open_error();
+ if (err != OK || file.is_null()) {
+ UtilityFunctions::push_error("Failed to load ", file_description, " file: ", file_path);
+ return err == OK ? FAILED : err;
+ }
+ const String json_string = file->get_as_text();
+ Ref<JSON> json;
+ json.instantiate();
+ err = json->parse(json_string);
+ if (err != OK) {
+ UtilityFunctions::push_error("Failed to parse ", file_description, " file as JSON: ", file_path,
+ "\nError at line ", json->get_error_line(), ": ", json->get_error_message());
+ return err;
+ }
+ const Variant json_var = json->get_data();
+ const Variant::Type type = json_var.get_type();
+ if (type != Variant::DICTIONARY) {
+ UtilityFunctions::push_error("Invalid ", file_description, " JSON: root has type ",
+ Variant::get_type_name(type), " (expected Dictionary)");
+ return FAILED;
+ }
+ const Dictionary dict = json_var;
+ const Array identifiers = dict.keys();
+ for (int idx = 0; idx < identifiers.size(); ++idx) {
+ String const& identifier = identifiers[idx];
+ Variant const& entry = dict[identifier];
+ if (identifier.is_empty()) {
+ UtilityFunctions::push_error("Empty identifier in ", file_description, " file with entry: ", entry);
+ err = FAILED;
+ continue;
+ }
+ if (!identifier.begins_with(identifier_prefix))
+ UtilityFunctions::push_warning("Identifier in ", file_description, " file missing \"", identifier_prefix, "\" prefix: ", identifier);
+ if (parse_entry(identifier, entry) != OK) err = FAILED;
+ }
+ return err;
+}
+
+Error MapSingleton::_parse_province_identifier_entry(String const& identifier, Variant const& entry) {
+ const Variant::Type type = entry.get_type();
+ Province::colour_t colour = Province::NULL_COLOUR;
+ if (type == Variant::ARRAY) {
+ const Array colour_array = entry;
+ if (colour_array.size() == 3) {
+ for (int jdx = 0; jdx < 3; ++jdx) {
+ const Variant var = colour_array[jdx];
+ if (var.get_type() != Variant::FLOAT) {
+ colour = Province::NULL_COLOUR;
+ break;
+ }
+ double colour_double = var;
+ if (std::trunc(colour_double) != colour_double) {
+ colour = Province::NULL_COLOUR;
+ break;
+ }
+ int64_t colour_int = static_cast<int64_t>(colour_double);
+ if (colour_int < 0 || colour_int > 255) {
+ colour = Province::NULL_COLOUR;
+ break;
+ }
+ colour = (colour << 8) | colour_int;
+ }
+ }
+ } else if (type == Variant::STRING) {
+ String colour_string = entry;
+ if (colour_string.is_valid_hex_number()) {
+ int64_t colour_int = colour_string.hex_to_int();
+ if (0 <= colour_int && colour_int <= 0xFFFFFF)
+ colour = colour_int;
+ }
+ } else {
+ UtilityFunctions::push_error("Invalid colour for province identifier \"", identifier, "\": ", entry);
+ return FAILED;
+ }
+ std::string error_message = "";
+ if (map.add_province(identifier.utf8().get_data(), colour, error_message) != SUCCESS) {
+ UtilityFunctions::push_error(error_message.c_str());
+ return FAILED;
+ }
+ return OK;
+}
+
+Error MapSingleton::load_province_identifier_file(String const& file_path) {
+ const Error err = parse_json_dictionary_file("province identifier", file_path, "prov_",
+ [this](String const& identifier, Variant const& entry) -> Error {
+ return this->_parse_province_identifier_entry(identifier, entry);
+ });
+ map.lock_provinces();
+ return err;
+}
+
+Error MapSingleton::_parse_region_entry(String const& identifier, Variant const& entry) {
+ Error err = OK;
+ Variant::Type type = entry.get_type();
+ std::vector<std::string> province_identifiers;
+ if (type == Variant::ARRAY) {
+ const Array province_array = entry;
+ for (int64_t idx = 0; idx < province_array.size(); ++idx) {
+ const Variant province_var = province_array[idx];
+ type = province_var.get_type();
+ if (type == Variant::STRING) {
+ String province_string = province_var;
+ province_identifiers.push_back(province_string.utf8().get_data());
+ } else {
+ UtilityFunctions::push_error("Invalid province identifier for region \"", identifier, "\": ", entry);
+ err = FAILED;
+ }
+ }
+ }
+ std::string error_message = "";
+ if (map.add_region(identifier.utf8().get_data(), province_identifiers, error_message) != SUCCESS) {
+ UtilityFunctions::push_error(error_message.c_str());
+ return FAILED;
+ }
+ return err;
+}
+
+Error MapSingleton::load_region_file(String const& file_path) {
+ const Error err = parse_json_dictionary_file("region", file_path, "region_",
+ [this](String const& identifier, Variant const& entry) -> Error {
+ return this->_parse_region_entry(identifier, entry);
+ });
+ map.lock_regions();
+ return err;
+}
+
+Error MapSingleton::load_province_shape_file(String const& file_path) {
+ if (province_index_image.is_valid()) {
+ UtilityFunctions::push_error("Province shape file has already been loaded, cannot load: ", file_path);
+ return FAILED;
+ }
+ Ref<Image> province_shape_image;
+ province_shape_image.instantiate();
+ Error err = province_shape_image->load(file_path);
+ if (err != OK) {
+ UtilityFunctions::push_error("Failed to load province shape file: ", file_path);
+ return err;
+ }
+ int32_t width = province_shape_image->get_width();
+ int32_t height = province_shape_image->get_height();
+ if (width < 1 || height < 1) {
+ UtilityFunctions::push_error("Invalid dimensions (", width, "x", height, ") for province shape file: ", file_path);
+ err = FAILED;
+ }
+ static const Image::Format expected_format = Image::FORMAT_RGB8;
+ const Image::Format format = province_shape_image->get_format();
+ if (format != expected_format) {
+ UtilityFunctions::push_error("Invalid format (", format, ", should be ", expected_format, ") for province shape file: ", file_path);
+ err = FAILED;
+ }
+ if (err != OK) return err;
+
+ std::string error_message = "";
+ if (map.generate_province_index_image(width, height, province_shape_image->get_data().ptr(), error_message) != SUCCESS) {
+ UtilityFunctions::push_error(error_message.c_str());
+ err = FAILED;
+ }
+
+ PackedByteArray index_data_array;
+ index_data_array.resize(width * height * sizeof(Province::index_t));
+ memcpy(index_data_array.ptrw(), map.get_province_index_image().data(), index_data_array.size());
+
+ province_index_image = Image::create_from_data(width, height, false, Image::FORMAT_RG8, index_data_array);
+ if (province_index_image.is_null()) {
+ UtilityFunctions::push_error("Failed to create province ID image");
+ err = FAILED;
+ }
+
+ if (update_colour_image() != OK) err = FAILED;
+
+ return err;
+}
+
+Province* MapSingleton::get_province_from_uv_coords(godot::Vector2 const& coords) {
+ if (province_index_image.is_valid()) {
+ const PackedByteArray index_data_array = province_index_image->get_data();
+ Province::index_t const* index_data = reinterpret_cast<Province::index_t const*>(index_data_array.ptr());
+ const int32_t x_mod_w = UtilityFunctions::fposmod(coords.x, 1.0f) * get_width();
+ const int32_t y_mod_h = UtilityFunctions::fposmod(coords.y, 1.0f) * get_height();
+ return map.get_province_by_index(index_data[x_mod_w + y_mod_h * get_width()]);
+ }
+ return nullptr;
+}
+
+Province const* MapSingleton::get_province_from_uv_coords(godot::Vector2 const& coords) const {
+ if (province_index_image.is_valid()) {
+ const PackedByteArray index_data_array = province_index_image->get_data();
+ Province::index_t const* index_data = reinterpret_cast<Province::index_t const*>(index_data_array.ptr());
+ const int32_t x_mod_w = UtilityFunctions::fposmod(coords.x, 1.0f) * get_width();
+ const int32_t y_mod_h = UtilityFunctions::fposmod(coords.y, 1.0f) * get_height();
+ return map.get_province_by_index(index_data[x_mod_w + y_mod_h * get_width()]);
+ }
+ return nullptr;
+}
+
+int32_t MapSingleton::get_province_index_from_uv_coords(Vector2 const& coords) const {
+ Province const* province = get_province_from_uv_coords(coords);
+ if (province != nullptr) return province->get_index();
+ return Province::NULL_INDEX;
+}
+
+String MapSingleton::get_province_identifier_from_uv_coords(Vector2 const& coords) const {
+ Province const* province = get_province_from_uv_coords(coords);
+ if (province != nullptr) return province->get_identifier().c_str();
+ return String{};
+}
+
+int32_t MapSingleton::get_width() const {
+ return map.get_width();
+}
+
+int32_t MapSingleton::get_height() const {
+ return map.get_height();
+}
+
+Ref<Image> MapSingleton::get_province_index_image() const {
+ return province_index_image;
+}
+
+Ref<Image> MapSingleton::get_province_colour_image() const {
+ return province_colour_image;
+}
+
+Error MapSingleton::update_colour_image() {
+ static PackedByteArray colour_data_array;
+ static const int64_t colour_data_array_size = (Province::MAX_INDEX + 1) * 3;
+ colour_data_array.resize(colour_data_array_size);
+
+ Error err = OK;
+ std::string error_message = "";
+ if (map.generate_mapmode_colours(mapmode_index, colour_data_array.ptrw(), error_message) != SUCCESS) {
+ UtilityFunctions::push_error(error_message.c_str());
+ err = FAILED;
+ }
+
+ static const int32_t PROVINCE_INDEX_SQRT = 1 << (sizeof(Province::index_t) * 4);
+ if (province_colour_image.is_null())
+ province_colour_image.instantiate();
+ province_colour_image->set_data(PROVINCE_INDEX_SQRT, PROVINCE_INDEX_SQRT,
+ false, Image::FORMAT_RGB8, colour_data_array);
+ if (province_colour_image.is_null()) {
+ UtilityFunctions::push_error("Failed to update province colour image");
+ return FAILED;
+ }
+ return err;
+}
+
+int32_t MapSingleton::get_mapmode_count() const {
+ return map.get_mapmode_count();
+}
+
+String MapSingleton::get_mapmode_identifier(int32_t index) const {
+ Mapmode const* mapmode = map.get_mapmode_by_index(index);
+ if (mapmode != nullptr) return mapmode->get_identifier().c_str();
+ return String{};
+}
+
+Error MapSingleton::set_mapmode(godot::String const& identifier) {
+ Mapmode const* mapmode = map.get_mapmode_by_identifier(identifier.utf8().get_data());
+ if (mapmode != nullptr) {
+ mapmode_index = mapmode->get_index();
+ return OK;
+ } else {
+ UtilityFunctions::push_error("Failed to set mapmode to: ", identifier);
+ return FAILED;
+ }
+}