Make get_biome_list() error message more helpful

diff --git a/src/script/lua_api/l_mapgen.cpp b/src/script/lua_api/l_mapgen.cpp
index 57090a58f64499f49e5da62b88c505ab9df97e0e..1a462adf72c7a95d0383960e3c506a049acaec12 100644 (file)
--- a/src/script/lua_api/l_mapgen.cpp
+++ b/src/script/lua_api/l_mapgen.cpp
@@ -416,7 +416,9 @@ size_t get_biome_list(lua_State *L, int index,
        if (is_single) {
                Biome *biome = get_or_load_biome(L, index, biomemgr);
                if (!biome) {
-                       errorstream << "get_biome_list: failed to get biome" << std::endl;
+                       errorstream << "get_biome_list: failed to get biome '"
+                               << (lua_isstring(L, index) ? lua_tostring(L, index) : "")
+                               << "'." << std::endl;
                        return 1;
                }
 
@@ -433,8 +435,9 @@ size_t get_biome_list(lua_State *L, int index,
                Biome *biome = get_or_load_biome(L, -1, biomemgr);
                if (!biome) {
                        fail_count++;
-                       errorstream << "get_biome_list: failed to load biome (index "
-                               << count << ")" << std::endl;
+                       errorstream << "get_biome_list: failed to get biome '"
+                               << (lua_isstring(L, -1) ? lua_tostring(L, -1) : "")
+                               << "'" << std::endl;
                        continue;
                }