Make //gm exp functional again

Not sure where it went, I guess it got lost in the Lua transition.

resources/scripts/commands/gm/Exp.lua

@@ -0,0 +1,9 @@
+required_rank = GM_RANK_DEBUG
+command_sender = "[exp] "
+
+function onCommand(args, player)
+    local amount = args[1]
+
+    player:add_exp(amount)
+    printf(player, "Added %s exp.", amount)
+end

src/world/connection.rs

@@ -1007,6 +1007,15 @@ impl ZoneConnection {
                 Task::UpdateBuyBackList { list } => {
                     self.player_data.buyback_list = list.clone();
                 }
+                Task::AddExp { amount } => {
+                    let current_exp;
+                    {
+                        let mut game_data = self.gamedata.lock().unwrap();
+                        current_exp = self.current_exp(&mut game_data);
+                    }
+                    self.set_current_exp(current_exp + amount);
+                    self.update_class_info().await;
+                }
             }
         }
         player.queued_tasks.clear();

src/world/lua.rs

@@ -80,6 +80,9 @@ pub enum Task {
     UpdateBuyBackList {
         list: BuyBackList,
     },
+    AddExp {
+        amount: u32,
+    },
 }
 
 #[derive(Default, Clone)]
@@ -439,6 +442,10 @@ impl LuaPlayer {
             self.create_segment_self(op_code, data);
         }
     }
+
+    fn add_exp(&mut self, amount: u32) {
+        self.queued_tasks.push(Task::AddExp { amount });
+    }
 }
 
 impl UserData for LuaPlayer {
@@ -589,6 +596,10 @@ impl UserData for LuaPlayer {
                 Ok(())
             },
         );
+        methods.add_method_mut("add_exp", |_, this, amount: u32| {
+            this.add_exp(amount);
+            Ok(())
+        });
     }
 
     fn add_fields<F: UserDataFields<Self>>(fields: &mut F) {