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#include <fstream>
#include <iostream>
#include <map>
#include <string>
#include <vector>
int main(int argc, char *argv[]) {
if (argc != 4) {
std::cerr << "Usage: " << argv[0]
<< " <assets.txt_path> <output_assets_h_path> "
"<output_assets_data_cc_path>\n";
return 1;
}
std::string assets_txt_path = argv[1];
std::string output_assets_h_path = argv[2];
std::string output_assets_data_cc_path = argv[3];
std::ifstream assets_txt_file(assets_txt_path);
if (!assets_txt_file.is_open()) {
std::cerr << "Error: Could not open assets.txt at " << assets_txt_path
<< "\n";
return 1;
}
std::ofstream assets_h_file(output_assets_h_path);
if (!assets_h_file.is_open()) {
std::cerr << "Error: Could not open output assets.h at "
<< output_assets_h_path << "\n";
return 1;
}
std::ofstream assets_data_cc_file(output_assets_data_cc_path);
if (!assets_data_cc_file.is_open()) {
std::cerr << "Error: Could not open output assets_data.cc at "
<< output_assets_data_cc_path << "\n";
return 1;
}
// Generate assets.h
assets_h_file << "#pragma once\n";
assets_h_file << "#include <cstdint>\n\n";
assets_h_file << "enum class AssetId : uint16_t {\n";
// Generate assets_data.cc header
assets_data_cc_file << "#include \"assets.h\"\n\n";
assets_data_cc_file << "#include <vector>\n\n";
std::string line;
int asset_id_counter = 0;
std::vector<std::string> asset_names;
while (std::getline(assets_txt_file, line)) {
if (line.empty() || line[0] == '#')
continue; // Skip empty lines and comments
size_t first_comma = line.find(',');
if (first_comma == std::string::npos) {
std::cerr << "Warning: Skipping malformed line in assets.txt: " << line
<< "\n";
continue;
}
std::string asset_name = line.substr(0, first_comma);
asset_name.erase(0, asset_name.find_first_not_of(" \t\r\n"));
asset_name.erase(asset_name.find_last_not_of(" \t\r\n") + 1);
if (asset_name.empty()) {
std::cerr << "Warning: Skipping line with empty asset name: " << line
<< "\n";
continue;
}
asset_names.push_back(asset_name);
// Add to assets.h enum
assets_h_file << " ASSET_" << asset_name << " = " << asset_id_counter
<< ",\n";
// Placeholder for assets_data.cc (empty data for now)
assets_data_cc_file << "const uint8_t ASSET_DATA_" << asset_name
<< "[] = {};\n";
assets_data_cc_file << "const size_t ASSET_SIZE_" << asset_name
<< " = 0;\n\n";
asset_id_counter++;
}
assets_h_file << "};\n\n";
// Generate GetAsset function declaration in assets.h
assets_h_file
<< "const uint8_t *GetAsset(AssetId asset_id, size_t *out_size = nullptr);\n";
assets_h_file << "void DropAsset(AssetId asset_id, const uint8_t *asset); // For lazy "
"decompression scaffolding\n";
assets_h_file.close();
// Generate GetAsset function implementation in assets_data.cc
assets_data_cc_file << "const uint8_t *GetAsset(AssetId asset_id, size_t *out_size) {\n";
assets_data_cc_file << " if (out_size) *out_size = 0;\n"; // Default for now
assets_data_cc_file << " switch (asset_id) {\n";
for (const std::string &name : asset_names) {
assets_data_cc_file << " case AssetId::ASSET_" << name << ":\n";
assets_data_cc_file << " if (out_size) *out_size = ASSET_SIZE_" << name << ";\n";
assets_data_cc_file << " return ASSET_DATA_" << name << ";\n";
}
assets_data_cc_file << " default:\n";
assets_data_cc_file << " return nullptr;\n";
assets_data_cc_file << " }\n";
assets_data_cc_file << "}\n\n";
// Dummy DropAsset implementation
assets_data_cc_file << "void DropAsset(AssetId asset_id, const uint8_t *asset) {\n";
assets_data_cc_file << " (void)asset_id;\n";
assets_data_cc_file << " (void)asset;\n";
assets_data_cc_file << " // No-op for now, actual implementation for lazy decompression goes here\n";
assets_data_cc_file << "}\n";
assets_data_cc_file.close();
std::cout << "Asset packer successfully generated: " << output_assets_h_path
<< " and " << output_assets_data_cc_path << "\n";
return 0;
}
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