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13 files changed, 370 insertions, 2 deletions

diff --git a/packets/achievement_data.gd b/packets/achievement_data.gd
new file mode 100644
index 0000000..a26633f
--- /dev/null
+++ b/packets/achievement_data.gd
@@ -0,0 +1,50 @@
+class_name AchievementData
+extends PacketChunk
+
+
+const BYTE_LENGTH := 50
+
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_id: int
+
+## Byte Type: u8
+## Byte Length: 1
+var is_completed: bool
+
+## Byte Type: u32
+## Byte Length: 4 * 10
+var objectives: PackedByteArray
+
+## Byte Type: u32
+## Byte Length: 4
+var completion_timestamp: int
+
+## Byte Type: u8
+## Byte Length: 1
+var got_rewarded: bool
+
+
+static func from_bytes(bytes: PackedByteArray) -> AchievementData:
+	var achievement_data = AchievementData.new()
+	
+	achievement_data.achievement_id = bytes.decode_u32(0)
+	achievement_data.is_completed = bytes.decode_u8(4)
+	achievement_data.objectives = bytes.slice(5, 5 + 40)
+	achievement_data.completion_timestamp = bytes.decode_u32(45)
+	achievement_data.got_rewarded = bytes.decode_u8(49)
+	
+	return achievement_data
+
+
+static func array_from_bytes(bytes: PackedByteArray) -> Array[AchievementData]:
+	var array: Array[AchievementData] = []
+	
+	var offset = 0
+	while offset < bytes.size():
+		var chunk = from_bytes(bytes.slice(offset))
+		array.append(chunk)
+		offset += chunk.byte_length
+	
+	return array
diff --git a/packets/achievement_list_packet.gd b/packets/achievement_list_packet.gd
new file mode 100644
index 0000000..ed09184
--- /dev/null
+++ b/packets/achievement_list_packet.gd
@@ -0,0 +1,48 @@
+## rAthena References:
+## - ZC_ALL_ACH_LIST
+class_name AchievementListPacket
+extends Packet
+
+
+const HEADER := 0x0a23
+const BYTE_LENGTH := 0
+
+
+## Byte Type: u16
+## Byte Length: 2
+var packet_length: int
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_count: int
+
+## Byte Type: u32
+## Byte Length: 4
+var total_score: int
+
+## Byte Type: u16
+## Byte Length: 2
+var level: int
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_experience: int
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_experience_to_next_level: int
+
+var achievement_data: Array[AchievementData]
+
+
+static func from_bytes(bytes: PackedByteArray) -> AchievementListPacket:
+	var packet = AchievementListPacket.new()
+	
+	packet.achievement_count = bytes.decode_u32(4)
+	packet.total_score = bytes.decode_u32(8)
+	packet.level = bytes.decode_u16(12)
+	packet.achievement_experience = bytes.decode_u32(14)
+	packet.achievement_experience_to_next_level = bytes.decode_u32(18)
+	packet.achievement_data = AchievementData.array_from_bytes(bytes.slice(22))
+	
+	return packet
diff --git a/packets/achievement_update_packet.gd b/packets/achievement_update_packet.gd
new file mode 100644
index 0000000..9b33273
--- /dev/null
+++ b/packets/achievement_update_packet.gd
@@ -0,0 +1,39 @@
+## rAthena References:
+## - ZC_ACH_UPDATE
+class_name AchievementUpdatePacket
+extends Packet
+
+
+const HEADER := 0x0a24
+const BYTE_LENGTH := 66
+
+
+## Byte Type: u32
+## Byte Length: 4
+var total_score: int
+
+## Byte Type: u16
+## Byte Length: 2
+var level: int
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_experience: int
+
+## Byte Type: u32
+## Byte Length: 4
+var achievement_experience_to_next_level: int
+
+var achievement_data: AchievementData
+
+
+static func from_bytes(bytes: PackedByteArray) -> AchievementUpdatePacket:
+	var packet = AchievementUpdatePacket.new()
+	
+	packet.total_score = bytes.decode_u32(2)
+	packet.level = bytes.decode_u16(6)
+	packet.achievement_experience = bytes.decode_u32(8)
+	packet.achievement_experience_to_next_level = bytes.decode_u32(12)
+	packet.achievement_data = AchievementData.from_bytes(bytes.slice(16))
+	
+	return packet
diff --git a/packets/change_map_packet.gd b/packets/change_map_packet.gd
new file mode 100644
index 0000000..beee821
--- /dev/null
+++ b/packets/change_map_packet.gd
@@ -0,0 +1,35 @@
+## rAthena References:
+## - ZC_NPCACK_MAPMOVE
+class_name ChangeMapPacket
+extends Packet
+
+
+const HEADER := 0x0091
+const BYTE_LENGTH := 22
+
+
+## Byte Type: u8
+## Byte Length: 16
+var map_name: String
+
+## Byte Type: u16
+## Byte Length: 2
+var position_x: int
+
+## Byte Type: u16
+## Byte Length: 2
+var position_y: int
+
+
+func get_position() -> Vector2:
+	return Vector2(position_x, position_y)
+
+
+static func from_bytes(bytes: PackedByteArray):
+	var packet = ChangeMapPacket.new()
+	
+	packet.map_name = bytes.slice(2, 2 + 16).get_string_from_utf8()
+	packet.position_x = bytes.decode_u16(18)
+	packet.position_x = bytes.decode_u16(20)
+	
+	return packet
diff --git a/packets/character_selection_failed_packet.gd b/packets/character_selection_failed_packet.gd
new file mode 100644
index 0000000..5f6cb8a
--- /dev/null
+++ b/packets/character_selection_failed_packet.gd
@@ -0,0 +1,19 @@
+class_name CharacterSelectionFailedPacket
+extends Packet
+
+
+const HEADER := 0x006c
+const BYTE_LENGTH := 3
+
+
+## Byte Type: u8
+## Byte Length: 1
+var reason: int
+
+
+static func from_bytes(bytes: PackedByteArray):
+	var packet = CharacterSelectionFailedPacket.new()
+	
+	packet.reason = bytes.decode_u8(2)
+	
+	return packet
diff --git a/packets/character_server_keep_alive_packet.gd b/packets/character_server_keep_alive_packet.gd
new file mode 100644
index 0000000..81f918c
--- /dev/null
+++ b/packets/character_server_keep_alive_packet.gd
@@ -0,0 +1,22 @@
+## rAthena References:
+class_name CharacterServerKeepAlivePacket
+extends Packet
+
+
+const HEADER := 0x0187
+const BYTE_LENGTH := 6
+
+
+## Byte Type: u32
+## Byte Length: 4
+var account_id: int
+
+
+func to_bytes():
+	var payload = PackedByteArray([])
+	payload.resize(4)
+	
+	# rAthena never reads this value, so just set it to 0
+	payload.encode_u32(0, 0)
+	
+	return get_header() + payload
diff --git a/packets/friend.gd b/packets/friend.gd
new file mode 100644
index 0000000..70120fe
--- /dev/null
+++ b/packets/friend.gd
@@ -0,0 +1,40 @@
+class_name Friend
+extends PacketChunk
+
+
+const BYTE_LENGTH := 32
+
+
+## Byte Type: u32
+## Byte Length: 4
+var account_id: int
+
+## Byte Type: u32
+## Byte Length: 4
+var character_id: int
+
+## Byte Type: u8
+## Byte Length: 24
+var name: String
+
+
+static func from_bytes(bytes: PackedByteArray):
+	var quest = Friend.new()
+	
+	quest.account_id = bytes.decode_u32(0)
+	quest.character_id = bytes.decode_u32(4)
+	quest.name = bytes.slice(8, 8 + 24).get_string_from_utf8()
+	
+	return quest
+
+
+static func array_from_bytes(bytes: PackedByteArray) -> Array[Friend]:
+	var array: Array[Friend] = []
+	
+	var offset = 0
+	while offset < bytes.size():
+		var chunk = from_bytes(bytes.slice(offset))
+		array.append(chunk)
+		offset += chunk.byte_length
+	
+	return array
diff --git a/packets/friend_list_packet.gd b/packets/friend_list_packet.gd
new file mode 100644
index 0000000..ab419f5
--- /dev/null
+++ b/packets/friend_list_packet.gd
@@ -0,0 +1,23 @@
+## rAthena References:
+## - ZC_FRIENDS_LIST
+class_name FriendListPacket
+extends Packet
+
+
+const HEADER := 0x0201
+const BYTE_LENGTH := 0
+
+
+## Byte Type: u16
+## Byte Length: 2
+var packet_length: int
+
+var friends: Array[Friend]
+
+
+static func from_bytes(bytes: PackedByteArray):
+	var packet = FriendListPacket.new()
+	
+	packet.friends = Friend.array_from_bytes(bytes.slice(4))
+	
+	return packet
diff --git a/packets/login_server_keep_alive_packet.gd b/packets/login_server_keep_alive_packet.gd
new file mode 100644
index 0000000..db0eedb
--- /dev/null
+++ b/packets/login_server_keep_alive_packet.gd
@@ -0,0 +1,22 @@
+## rAthena References:
+## - CA_CONNECT_INFO_CHANGED ?
+class_name LoginServerKeepAlivePacket
+extends Packet
+
+
+const HEADER := 0x0200
+const BYTE_LENGTH := 26
+
+
+## Byte Type: u8
+## Byte Length: 24
+var user_name: String
+
+
+func to_bytes():
+	var payload = PackedByteArray([])
+	
+	payload += user_name.to_utf8_buffer()
+	payload.resize(BYTE_LENGTH - 2)
+	
+	return get_header() + payload
diff --git a/packets/map_server_login_success_packet.gd b/packets/map_server_login_success_packet.gd
index a6cbdae..9b70428 100644
--- a/packets/map_server_login_success_packet.gd
+++ b/packets/map_server_login_success_packet.gd
@@ -6,7 +6,7 @@ extends Packet
 
 
 const HEADER := 0x02eb
-const BYTE_LENGTH := 14
+const BYTE_LENGTH := 13
 
 
 ## Byte Type: u32
@@ -46,6 +46,6 @@ static func from_bytes(bytes: PackedByteArray):
 	packet.position = bytes.slice(6, 6 + 3)
 	packet.ignored = bytes.slice(9, 9 + 2)
 	packet.font = bytes.decode_u16(11)
-	packet.gender = bytes.decode_u8(13)
+	#packet.gender = bytes.decode_u8(13)
 	
 	return packet
diff --git a/packets/send_chat_message_packet.gd b/packets/send_chat_message_packet.gd
new file mode 100644
index 0000000..6bb6b14
--- /dev/null
+++ b/packets/send_chat_message_packet.gd
@@ -0,0 +1,26 @@
+## rAthena References:
+## -
+class_name SendChatMessagePacket
+extends Packet
+
+
+const HEADER := 0x00f3
+const BYTE_LENGTH := 0
+
+
+## Byte Type: u16
+## Byte Length: 2
+var packet_length: int
+
+## Byte Type: u8
+## Byte Length: variable
+var message: String
+
+
+func to_bytes():
+	var payload = PackedByteArray([])
+	
+	payload = message.to_utf8_buffer() + PackedByteArray([0])
+	print(message)
+	print(get_header(4 + payload.size()) + payload)
+	return get_header(4 + payload.size()) + payload
diff --git a/packets/server_message_packet.gd b/packets/server_message_packet.gd
new file mode 100644
index 0000000..9b8d846
--- /dev/null
+++ b/packets/server_message_packet.gd
@@ -0,0 +1,25 @@
+## rAthena References:
+## - clif_displaymessage
+class_name ServerMessagePacket
+extends Packet
+
+
+const HEADER := 0x008e
+const BYTE_LENGTH := 0
+
+
+## Byte Type: u16
+## Byte Length: 2
+var packet_length: int
+
+## Byte Type: u8
+## Byte Length: variable
+var message: String
+
+
+static func from_bytes(bytes: PackedByteArray):
+	var packet = ServerMessagePacket.new()
+	
+	packet.message = bytes.slice(4).get_string_from_utf8()
+	
+	return packet
diff --git a/packets/update_critical_weight_packet.gd b/packets/update_critical_weight_packet.gd
new file mode 100644
index 0000000..03fb273
--- /dev/null
+++ b/packets/update_critical_weight_packet.gd
@@ -0,0 +1,19 @@
+class_name UpdateCriticalWeightPacket
+extends Packet
+
+
+const HEADER := 0x0ade
+const BYTE_LENGTH := 6
+
+
+## Byte Type: u32
+## Byte Length: 4
+var weight: int
+
+
+static func from_bytes(bytes: PackedByteArray) -> UpdateCriticalWeightPacket:
+	var packet = UpdateCriticalWeightPacket.new()
+	
+	packet.weight = bytes.decode_u32(2)
+	
+	return packet