feat: send item packets

makes spells like heroic strike work

lib/game/login.ex

@@ -2,7 +2,8 @@ defmodule ThistleTea.Game.Login do
   import ThistleTea.Game.UpdateObject, only: [build_update_packet: 4]
   import Bitwise, only: [<<<: 2, |||: 2]
 
-  import ThistleTea.Util, only: [pack_guid: 1, send_packet: 2, send_update_packet: 1]
+  import ThistleTea.Util,
+    only: [pack_guid: 1, send_packet: 2, send_update_packet: 1, get_item_packets: 1]
 
   alias ThistleTea.DBC
 
@@ -112,6 +113,10 @@ defmodule ThistleTea.Game.Login do
       )
     end
 
+    # item packets
+    get_item_packets(c.equipment)
+    |> Enum.each(fn packet -> send_update_packet(packet) end)
+
     # packet for player
     update_flag =
       @update_flag_self ||| @update_flag_all ||| @update_flag_living ||| @update_flag_has_position

lib/game/mob.ex

@@ -79,13 +79,13 @@ defmodule ThistleTea.Mob do
     state = state |> Map.put(:creature, %{state.creature | curhealth: new_health})
 
     if new_health == 0 do
-      with pid <- Map.get(state, :behavior_pid) do
+      with pid when not is_nil(pid) <- Map.get(state, :behavior_pid) do
         GenServer.stop(pid)
       end
 
       respawn_timer = state.creature.spawntimesecs * 1_000
       Process.send_after(self(), :respawn, respawn_timer)
-      state |> Map.put(:movement_flags, 0)
+      state |> Map.put(:movement_flags, 0) |> Map.delete(:behavior_pid)
     else
       state
     end
@@ -185,7 +185,7 @@ defmodule ThistleTea.Mob do
 
   @impl GenServer
   def handle_info(:respawn, state) do
-    GenServer.stop(self())
+    Process.exit(self(), :normal)
     {:noreply, state}
   end
 

lib/game/movement.ex

@@ -2,6 +2,7 @@ defmodule ThistleTea.Game.Movement do
   import ThistleTea.Character, only: [get_update_fields: 1]
   import ThistleTea.Game.Character, only: [generate_random_equipment: 0]
   import ThistleTea.Game.UpdateObject, only: [generate_packet: 2, decode_movement_info: 1]
+  import ThistleTea.Util, only: [send_update_packet: 1, get_item_packets: 1]
 
   require Logger
 
@@ -49,6 +50,10 @@ defmodule ThistleTea.Game.Movement do
       fields = get_update_fields(character)
       packet = generate_packet(@update_type_values, fields)
 
+      # item packets
+      get_item_packets(character.equipment)
+      |> Enum.each(fn packet -> send_update_packet(packet) end)
+
       for pid <- Map.get(state, :player_pids, []) do
         GenServer.cast(pid, {:send_update_packet, packet})
       end

lib/model/character.ex

@@ -66,16 +66,16 @@ defmodule ThistleTea.Character do
       object_scale_x: 1.0,
       unit_health: 100,
       unit_power_1: 10_000,
-      unit_power_2: 100,
-      unit_power_3: 100,
-      unit_power_4: 100,
-      unit_power_5: 100,
+      unit_power_2: 1000,
+      unit_power_3: 1000,
+      unit_power_4: 1000,
+      unit_power_5: 1000,
       unit_max_health: 100,
       unit_max_power_1: 10_000,
-      unit_max_power_2: 100,
-      unit_max_power_3: 100,
-      unit_max_power_4: 100,
-      unit_max_power_5: 100,
+      unit_max_power_2: 1000,
+      unit_max_power_3: 1000,
+      unit_max_power_4: 1000,
+      unit_max_power_5: 1000,
       unit_level: c.level,
       unit_faction_template: 1,
       unit_bytes_0: <<c.race, c.class, c.gender, get_power(c.class)>>,

lib/util.ex

@@ -1,10 +1,16 @@
 defmodule ThistleTea.Util do
   import Binary, only: [split_at: 2, trim_trailing: 1, reverse: 1]
   import Bitwise, only: [|||: 2, <<<: 2, &&&: 2]
+  import ThistleTea.Game.UpdateObject, only: [generate_packet: 4]
 
   @smsg_update_object 0x0A9
   @smsg_compressed_update_object 0x1F6
 
+  @update_type_create_object2 3
+  @object_type_item 1
+
+  @item_guid_offset 0x40000000
+
   @range 250
 
   def random_int(min, max) when is_float(min) and is_float(max) do
@@ -45,6 +51,26 @@ defmodule ThistleTea.Util do
     end
   end
 
+  # TODO: i really need to clean this up
+  def get_item_packets(items) do
+    items
+    |> Enum.map(fn {_, item} ->
+      fields = %{
+        object_guid: item.entry + @item_guid_offset,
+        # object + item
+        object_type: 3,
+        object_entry: item.entry,
+        item_flags: item.flags
+      }
+
+      mb = %{
+        update_flag: 0
+      }
+
+      generate_packet(@update_type_create_object2, @object_type_item, fields, mb)
+    end)
+  end
+
   def pack_guid(guid) when is_integer(guid) do
     pack_guid(<<guid::size(64)>>)
   end