Saying nothing cancels dialog

main.c

@@ -188,11 +188,18 @@ void begin_text_input(); // called when player engages in dialog, must say somet
 // a callback, when 'text backend' has finished making text
 void end_text_input(char *what_player_said)
 {
+ player->state = CHARACTER_IDLE;
 #ifdef WEB // hacky
  _sapp_emsc_register_eventhandlers();
 #endif
 
  size_t player_said_len = strlen(what_player_said);
+ if(player_said_len == 0) 
+ {
+  // this just means cancel the dialog
+ }
+ else
+ {
   Sentence what_player_said_sentence = {0};
   assert(player_said_len < ARRLEN(what_player_said_sentence.data));
   memcpy(what_player_said_sentence.data, what_player_said, player_said_len);
@@ -215,7 +222,7 @@ void end_text_input(char *what_player_said)
   }
   BUFF_APPEND(to_append, what_player_said_sentence);
   BUFF_APPEND(to_append, SENTENCE_CONST("NPC response"));
- player->state = CHARACTER_IDLE;
+ }
 }
 
 // keydown needs to be referenced when begin text input,