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#include <filesystem>
#include <fstream>
#include <iostream>
#include <list>
#include <utility>
#include "heading.h"
#include "scene.h"
#include "script.h"
struct EmbeddedScript {
Script script;
bool internal = false; // true if referred from within another script
int id = -1; // if internal is false, ExtResource id
std::string path; // if internal is true
};
void show_usage() {
std::cout << "godot3_tscn_compactor [path to root tscn] [file prefix]"
<< std::endl;
}
int main(int argc, char** argv) {
if (argc != 3) {
show_usage();
return 0;
}
std::filesystem::path root_tscn_path(argv[1]);
std::string file_prefix(argv[2]);
Scene root_tscn(root_tscn_path);
std::vector<EmbeddedScript> sub_scripts;
for (const auto& [id, heading] : root_tscn.ext_resources()) {
std::string resource_filename =
std::get<std::string>(heading.GetKeyval("path"));
if (resource_filename.substr(0, file_prefix.size()) == file_prefix) {
std::filesystem::path relative_filename =
resource_filename.substr(file_prefix.size());
std::filesystem::path resource_path =
root_tscn_path.parent_path() / relative_filename;
EmbeddedScript embedded_script;
embedded_script.script = Script(resource_path, file_prefix);
embedded_script.id = id;
sub_scripts.push_back(std::move(embedded_script));
}
}
std::list<EmbeddedScript> all_scripts;
std::vector<EmbeddedScript> scripts_to_check = sub_scripts;
while (!scripts_to_check.empty()) {
std::vector<EmbeddedScript> cur_scripts;
cur_scripts.swap(scripts_to_check);
for (const EmbeddedScript& embedded_script : cur_scripts) {
all_scripts.push_front(embedded_script);
for (const std::string& loaded_script_path :
embedded_script.script.loaded_scripts()) {
std::filesystem::path resource_path =
root_tscn_path.parent_path() / loaded_script_path;
EmbeddedScript embedded_script;
embedded_script.script = Script(resource_path, file_prefix);
embedded_script.internal = true;
embedded_script.path = loaded_script_path;
scripts_to_check.push_back(std::move(embedded_script));
}
}
}
std::map<std::string, int> new_sub_scripts;
for (EmbeddedScript embedded_script : all_scripts) {
embedded_script.script.ReplaceScriptReferences(new_sub_scripts);
int sub_resource_id = root_tscn.AddSubResource(embedded_script.script);
if (embedded_script.internal) {
new_sub_scripts[embedded_script.path] = sub_resource_id;
} else {
root_tscn.RemoveExtResource(embedded_script.id);
root_tscn.ReplaceScriptReferences(embedded_script.id, sub_resource_id);
}
}
std::filesystem::path output_name = root_tscn_path;
output_name.replace_filename(std::string(output_name.stem()) +
"_compiled.tscn");
std::ofstream output_stream(output_name);
output_stream << root_tscn.ToString();
return 0;
}
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