start yaze_delta side project

src/app/delta/delta.cc

@@ -0,0 +1,33 @@
+#if defined(_WIN32)
+#define main SDL_main
+#endif
+
+#include "absl/debugging/failure_signal_handler.h"
+#include "absl/debugging/symbolize.h"
+#include "app/core/controller.h"
+#include "app/delta/viewer.h"
+
+int main(int argc, char** argv) {
+  absl::InitializeSymbolizer(argv[0]);
+
+  absl::FailureSignalHandlerOptions options;
+  absl::InstallFailureSignalHandler(options);
+
+  yaze::app::core::Controller controller;
+  yaze::app::delta::Viewer viewer;
+
+  auto entry_status = controller.onEntry();
+  if (!entry_status.ok()) {
+    // TODO(@scawful): log the specific error
+    return EXIT_FAILURE;
+  }
+
+  while (controller.isActive()) {
+    controller.onInput();
+    viewer.Update();
+    controller.doRender();
+  }
+  controller.onExit();
+
+  return EXIT_SUCCESS;
+}