Add Tile16Transfer command to z3ed

src/cli/command_handler.cc

@@ -1 +1,48 @@
-#include "cli/command_handler.h"
+#include "cli/command_handler.h"
+
+#include <string>  // for basic_string, char_traits, stoi
+#include <vector>  // for vector, vector<>::value_type
+
+#include "absl/status/status.h"  // for OkStatus, Status
+#include "app/core/common.h"     // for app
+#include "app/core/constants.h"  // for RETURN_IF_ERROR
+#include "app/rom.h"             // for ROM
+
+namespace yaze {
+namespace cli {
+
+using namespace app;
+
+absl::Status Tile16Transfer::handle(const std::vector<std::string>& arg_vec) {
+  // Load the source rom
+  RETURN_IF_ERROR(rom_.LoadFromFile(arg_vec[0]))
+
+  // Load the destination rom
+  ROM dest_rom;
+  RETURN_IF_ERROR(dest_rom.LoadFromFile(arg_vec[1]))
+
+  // Parse the CSV list of tile16 IDs.
+  std::stringstream ss(arg_vec[2].data());
+  for (std::string tile16_id; std::getline(ss, tile16_id, ',');) {
+    std::cout << "Writing tile16 ID " << tile16_id << " to dest rom."
+              << std::endl;
+
+    // Convert the string to a base16 integer.
+    uint32_t tile16_id_int = std::stoi(tile16_id, nullptr, /*base=*/16);
+
+    // Read the tile16 definition from the source ROM.
+    auto tile16_data = rom_.ReadTile16(tile16_id_int);
+
+    // Write the tile16 definition to the destination ROM.
+    dest_rom.WriteTile16(tile16_id_int, tile16_data);
+  }
+
+  RETURN_IF_ERROR(dest_rom.SaveToFile(/*backup=*/true, arg_vec[1]))
+
+  std::cout << "Successfully transferred tile16" << std::endl;
+
+  return absl::OkStatus();
+}
+
+}  // namespace cli
+}  // namespace yaze