Changed Hand::eat_-functions to return a bool, so a failure can be distinguished from a depleted list of tiles.

1 files changed, 10 insertions, 10 deletions

diff --git a/server/hand.h b/server/hand.h
index e38a387..879bc8d 100644
--- a/server/hand.h
+++ b/server/hand.h
@@ -16,20 +16,20 @@ namespace Hand {
 	// Check if the tiles is matching the normal format but missing one.
 	bool basic_format_tenpai(const Tiles& tiles, bool pair_eaten = false, bool wait_eaten = false);
 	
-	// Eat a single tile (i.e. the tanki machi) from beginning of list and return rest.
-	Tiles eat_tanki(Tiles tiles);
+	// Eat a single tile (i.e. the tanki machi) from beginning of list and return success flag.
+	bool eat_tanki(Tiles& tiles);
 	
-	// Eat two tiles waiting for a third to complete a chi (i.e. ryanmen, penchan or kanchan machi) if possible.
-	Tiles eat_chi_wait(Tiles tiles);
+	// Eat two tiles waiting for a third to complete a chi (i.e. ryanmen, penchan or kanchan machi) if possible and return success flag.
+	bool eat_chi_wait(Tiles& tiles);
 	
-	// Eat a pair from beginning of list if possible and return rest, else return empty list.
-	Tiles eat_pair(Tiles tiles);
+	// Eat a pair from beginning of list if possible and return success flag.
+	bool eat_pair(Tiles& tiles);
 	
-	// Eat a pon from beginning of list if possible and return rest, else return empty list.
-	Tiles eat_pon(Tiles tiles);
+	// Eat a pon from beginning of list if possible and return success flag.
+	bool eat_pon(Tiles& tiles);
 	
-	// Eat a chi from beginning of list if possible and return rest, else return empty list.
-	Tiles eat_chi(Tiles tiles);
+	// Eat a chi from beginning of list if possible and return success flag.
+	bool eat_chi(Tiles& tiles);
 }
 
 #endif