add rom filename command line arg LoadFromFile

src/app/core/controller.cc

@@ -190,7 +190,7 @@ void HandleMouseMovement(int &wheel) {
 
 }  // namespace
 
-absl::Status Controller::OnEntry() {
+absl::Status Controller::OnEntry(std::string filename) {
   RETURN_IF_ERROR(CreateSDL_Window())
   RETURN_IF_ERROR(CreateRenderer())
   RETURN_IF_ERROR(CreateGuiContext())

src/app/core/controller.h

@@ -31,7 +31,7 @@ namespace core {
 class Controller : public ExperimentFlags {
  public:
   bool IsActive() const { return active_; }
-  absl::Status OnEntry();
+  absl::Status OnEntry(std::string filename = "");
   void OnInput();
   void OnLoad();
   void DoRender() const;

src/app/editor/master_editor.cc

@@ -122,9 +122,13 @@ using ImGui::Checkbox;
 using ImGui::MenuItem;
 using ImGui::Text;
 
-void MasterEditor::SetupScreen(std::shared_ptr<SDL_Renderer> renderer) {
+void MasterEditor::SetupScreen(std::shared_ptr<SDL_Renderer> renderer,
+                               std::string filename) {
   sdl_renderer_ = renderer;
   rom()->SetupRenderer(renderer);
+  if (!filename.empty()) {
+    rom()->LoadFromFile(filename);
+  }
   overworld_editor_.InitializeZeml();
 }
 

src/app/editor/master_editor.h

@@ -58,7 +58,8 @@ class MasterEditor : public SharedRom,
  public:
   MasterEditor() { current_editor_ = &overworld_editor_; }
 
-  void SetupScreen(std::shared_ptr<SDL_Renderer> renderer);
+  void SetupScreen(std::shared_ptr<SDL_Renderer> renderer,
+                   std::string filename = "");
   absl::Status Update();
 
   void Shutdown() { overworld_editor_.Shutdown(); }

src/app/yaze.cc

@@ -25,6 +25,11 @@ int main(int argc, char** argv) {
   options.alarm_on_failure_secs = true;
   absl::InstallFailureSignalHandler(options);
 
+  std::string rom_filename;
+  if (argc > 1) {
+    rom_filename = argv[1];
+  }
+
   core::Controller controller;
   EXIT_IF_ERROR(controller.OnEntry())