add comments

1 files changed, 5 insertions, 0 deletions

diff --git a/src/sdl/main.c b/src/sdl/main.c
index 882eefb..12f296b 100644
--- a/src/sdl/main.c
+++ b/src/sdl/main.c
@@ -59,6 +59,7 @@ int main(int argc, char *argv[]) {
     die("SDL_Init(): %s", SDL_GetError());
   }
 
+  // register exit handler
   if (atexit(SDL_Quit)) {
     die("atexit(): %s", strerror(errno));
     exit(EXIT_FAILURE);
@@ -83,9 +84,12 @@ int main(int argc, char *argv[]) {
   bool done = false;
   SDL_Event ev;
   while (!done) {
+    // read events
     while (SDL_PollEvent(&ev)) {
+      // get action
       const action_t action = get_action(&ev);
 
+      // handle action
       switch (action.type) {
       case ACTION_NONE:
         // do nothing
@@ -183,6 +187,7 @@ int main(int argc, char *argv[]) {
       }
     }
 
+    // draw
     draw(&draw_ctx);
   }