From 5842d70094dbbc345ccc634fa47191f967156f5c Mon Sep 17 00:00:00 2001
From: Martin Michelsen <fuzziqersoftware+g@gmail.com>
Date: Mon, 19 Jun 2023 19:20:11 -0700
Subject: [PATCH] implement meseta/item reward commands on BB

---
 src/CommandFormats.hh     | 13 ++++++++++++-
 src/ReceiveSubcommands.cc | 38 ++++++++++++++++++++++++++++++++++++--
 2 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/src/CommandFormats.hh b/src/CommandFormats.hh
index e458a819..b5ab0b43 100644
--- a/src/CommandFormats.hh
+++ b/src/CommandFormats.hh
@@ -5247,9 +5247,20 @@ struct G_EnemyKilled_BB_6xC8 {
   le_uint32_t unused;
 } __packed__;
 
-// 6xC9: Meseta reward from quest (BB; handled by server)
+// 6xC9: Request meseta reward from quest (BB; handled by server)
+
+struct G_MesetaRewardRequest_BB_6xC9 {
+  G_UnusedHeader header;
+  le_uint32_t amount;
+} __packed__;
+
 // 6xCA: Item reward from quest (BB; handled by server)
 
+struct G_ItemRewardRequest_BB_6xCA {
+  G_UnusedHeader header;
+  ItemData item_data;
+} __packed__;
+
 // 6xCB: Request to transfer item (BB)
 
 struct G_ItemTransferRequest_BB_6xCB {
diff --git a/src/ReceiveSubcommands.cc b/src/ReceiveSubcommands.cc
index b0897f72..4db01182 100644
--- a/src/ReceiveSubcommands.cc
+++ b/src/ReceiveSubcommands.cc
@@ -1502,6 +1502,40 @@ static void on_enemy_killed_bb(shared_ptr<ServerState> s,
   }
 }
 
+void on_meseta_reward_request_bb(shared_ptr<ServerState>,
+    shared_ptr<Lobby> l, shared_ptr<Client> c, uint8_t, uint8_t,
+    const void* data, size_t size) {
+  const auto& cmd = check_size_t<G_MesetaRewardRequest_BB_6xC9>(data, size);
+
+  auto p = c->game_data.player();
+  if (cmd.amount < 0) {
+    if (-cmd.amount > p->disp.meseta) {
+      p->disp.meseta = 0;
+    } else {
+      p->disp.meseta += cmd.amount;
+    }
+  } else {
+    PlayerInventoryItem item;
+    item.data.data1[0] = 0x04;
+    item.data.data2d = cmd.amount;
+    item.data.id = l->generate_item_id(0xFF);
+    c->game_data.player()->add_item(item);
+    send_create_inventory_item(l, c, item.data);
+  }
+}
+
+void on_item_reward_request_bb(shared_ptr<ServerState>,
+    shared_ptr<Lobby> l, shared_ptr<Client> c, uint8_t, uint8_t,
+    const void* data, size_t size) {
+  const auto& cmd = check_size_t<G_ItemRewardRequest_BB_6xCA>(data, size);
+
+  PlayerInventoryItem item;
+  item.data = cmd.item_data;
+  item.data.id = l->generate_item_id(0xFF);
+  c->game_data.player()->add_item(item);
+  send_create_inventory_item(l, c, item.data);
+}
+
 static void on_destroy_inventory_item(shared_ptr<ServerState>,
     shared_ptr<Lobby> l, shared_ptr<Client> c, uint8_t command, uint8_t flag,
     const void* data, size_t size) {
@@ -1900,8 +1934,8 @@ subcommand_handler_t subcommand_handlers[0x100] = {
     /* 6xC6 */ nullptr,
     /* 6xC7 */ on_charge_attack_bb,
     /* 6xC8 */ on_enemy_killed_bb,
-    /* 6xC9 */ nullptr,
-    /* 6xCA */ nullptr,
+    /* 6xC9 */ on_meseta_reward_request_bb,
+    /* 6xCA */ on_item_reward_request_bb,
     /* 6xCB */ nullptr,
     /* 6xCC */ nullptr,
     /* 6xCD */ nullptr,