implement Episode 3 download quest categories

src/ReceiveCommands.cc

@@ -1719,21 +1719,30 @@ static void on_10(shared_ptr<Client> c, uint16_t, uint32_t, const string& data)
             // always the download quest menu. (Episode 3 does actually have
             // online quests, but they're served via a server data request
             // instead of the file download paradigm that other versions use.)
-            vector<shared_ptr<const Quest>> quests;
+            uint32_t ep3_category_id = 0;
+            size_t num_ep3_categories = 0;
             for (const auto& category : s->quest_category_index->categories) {
               if (category.flags & QuestCategoryIndex::Category::Flag::EP3_DOWNLOAD) {
-                quests = s->quest_index->filter(category.category_id, c->quest_version());
-                break;
+                ep3_category_id = category.category_id;
+                num_ep3_categories++;
               }
             }
-            send_quest_menu(c, MenuID::QUEST, quests, true);
-          } else {
-            uint8_t flags = QuestCategoryIndex::Category::Flag::DOWNLOAD;
-            if (c->version() == GameVersion::DC || c->version() == GameVersion::PC) {
-              flags |= QuestCategoryIndex::Category::Flag::HIDE_ON_PRE_V3;
+            if (num_ep3_categories == 1) {
+              auto quests = s->quest_index->filter(ep3_category_id, c->quest_version());
+              send_quest_menu(c, MenuID::QUEST, quests, true);
+              break;
             }
-            send_quest_menu(c, MenuID::QUEST_FILTER, s->quest_category_index, flags);
           }
+
+          // Not Episode 3, or there are multiple Episode 3 download categories;
+          // send the categories menu instead
+          uint8_t flags = (c->flags & Client::Flag::IS_EPISODE_3)
+              ? QuestCategoryIndex::Category::Flag::EP3_DOWNLOAD
+              : QuestCategoryIndex::Category::Flag::DOWNLOAD;
+          if (c->version() == GameVersion::DC || c->version() == GameVersion::PC) {
+            flags |= QuestCategoryIndex::Category::Flag::HIDE_ON_PRE_V3;
+          }
+          send_quest_menu(c, MenuID::QUEST_FILTER, s->quest_category_index, flags);
           break;
         }
 

system/config.example.json

@@ -482,7 +482,8 @@
     [0x10, "q", "gv2", "The Military's Hero", "$E$CG-Heathcliff Flowen-\n$C6Quests that follow\nthe Episode 2\nstoryline"],
     [0x10, "q", "gv4", "The Meteor Impact Incident", "$E$C6Quests that follow\nthe Episode 4\nstoryline"],
     [0x20, "q", "dl", "Download", "$E$C6Quests to download\nto your Memory Card"],
-    [0x40, "e", "", "Download", "$E$C6Quests to download\nto your Memory Card"],
+    [0x40, "e", "dlt", "Trial Download", "$E$C6Quests to download\nto your Memory Card\nfrom Episode 3\nTrial Edition"],
+    [0x40, "e", "dl", "Download", "$E$C6Quests to download\nto your Memory Card"],
   ],
 
   // Cheat mode behavior. There are three values:

system/ep3/maps/e765-dlt-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e765-dlt-gc3.mnm

system/ep3/maps/e765-gc3.mnmd

@@ -1 +0,0 @@
-../../quests/e765-gc3.mnmd

system/ep3/maps/e901-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e901-dl-gc3.mnm

system/ep3/maps/e901-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e901-gc3.mnm

system/ep3/maps/e903-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e903-dl-gc3.mnm

system/ep3/maps/e903-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e903-gc3.mnm

system/ep3/maps/e904-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e904-dl-gc3.mnm

system/ep3/maps/e904-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e904-gc3.mnm

system/ep3/maps/e905-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e905-dl-gc3.mnm

system/ep3/maps/e905-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e905-gc3.mnm

system/ep3/maps/e906-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e906-dl-gc3.mnm

system/ep3/maps/e906-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e906-gc3.mnm

system/ep3/maps/e907-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e907-dl-gc3.mnm

system/ep3/maps/e907-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e907-gc3.mnm

system/ep3/maps/e908-dl-gc3.mnm

@@ -0,0 +1 @@
+../../quests/e908-dl-gc3.mnm

system/ep3/maps/e908-gc3.mnm

@@ -1 +0,0 @@
-../../quests/e908-gc3.mnm