improve return codes

include/command_line_interface.h

@@ -82,6 +82,7 @@ namespace Hanabi
 
   constexpr int download_failed = 1;
   constexpr int state_unreachable = 2;
+  constexpr int out_of_memory = 3;
 
   /**
    * Parse parameters from command-line arguments.

include/game_state.hpp

@@ -776,13 +776,19 @@ namespace Hanabi
 
     const std::array<Card, hand_size> & hand = _hands[_turn];
     // First, check for playable cards
+    bool played_trash = false;
     for (std::uint8_t index = 0; index < hand_size; index++)
     {
-      Card const & card = hand[index];
+      Card card = hand[index];
-      bool const consider_playing = is_playable(hand[index]) or (not is_critical(card) and not reasonable);
+      bool const consider_playing = is_playable(card) or (not is_critical(card) and not reasonable and (not is_trash(card) or not played_trash));
       if (consider_playing)
       {
-        const Action action = {ActionType::play, hand[index]};
+        if (is_trash(card))
+        {
+          card = Cards::trash;
+          played_trash = true;
+        }
+        const Action action = {ActionType::play, card};
         bool known = true;
         probability_t sum_of_probabilities = 0;
 

src/main.cpp

@@ -2,13 +2,16 @@
 
 #include "command_line_interface.h"
 
-
 int main(int argc, char *argv[])
 {
   std::optional<Hanabi::CLIParms> parms = Hanabi::parse_parms(argc, argv);
   if (parms.has_value())
   {
-    return Hanabi::run_cli(parms.value());
+    try {
+      return Hanabi::run_cli(parms.value());
+    } catch (std::bad_alloc& ex) {
+      return Hanabi::out_of_memory;
+    }
   }
   return EXIT_SUCCESS;
 }