add extra languages on PC v2

src/PlayerSubordinates.cc

@@ -668,6 +668,14 @@ void PlayerInventory::encode_for_client(shared_ptr<Client> c) {
     this->hp_from_materials = 0;
     this->tp_from_materials = 0;
     this->language = 0;
+  } else if (c->version() != Version::PC_V2) {
+    if (this->language > 4) {
+      this->language = 0;
+    }
+  } else {
+    if (this->language > 7) {
+      this->language = 0;
+    }
   }
 
   auto item_parameter_table = c->require_server_state()->item_parameter_table_for_version(c->version());

src/StaticGameData.cc

@@ -433,20 +433,7 @@ char abbreviation_for_difficulty(uint8_t difficulty) {
 }
 
 char char_for_language_code(uint8_t language_code) {
-  switch (language_code) {
+  return (language_code < 8) ? "JEGFSBTK"[language_code] : '?';
-    case 0:
-      return 'J';
-    case 1:
-      return 'E';
-    case 2:
-      return 'G';
-    case 3:
-      return 'F';
-    case 4:
-      return 'S';
-    default:
-      return '?';
-  }
 }
 
 uint8_t language_code_for_char(char language_char) {
@@ -466,6 +453,15 @@ uint8_t language_code_for_char(char language_char) {
     case 'S':
     case 's':
       return 4;
+    case 'B':
+    case 'b':
+      return 5;
+    case 'T':
+    case 't':
+      return 6;
+    case 'K':
+    case 'k':
+      return 7;
     default:
       throw runtime_error("unknown language");
   }