From cf3cafa929415e7db94780615bbb9bc47f55935e Mon Sep 17 00:00:00 2001
From: Andrew Gutekanst <andrew.gutekanst@gmail.com>
Date: Wed, 22 Jan 2020 18:17:23 -0500
Subject: [PATCH] Implement MsgSysCreateStage

---
 network/mhfpacket/msg_sys_create_stage.go | 17 ++++++++++++++---
 server/channelserver/handlers.go          | 11 ++++++++++-
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/network/mhfpacket/msg_sys_create_stage.go b/network/mhfpacket/msg_sys_create_stage.go
index 642a3c23d..3eef61a52 100644
--- a/network/mhfpacket/msg_sys_create_stage.go
+++ b/network/mhfpacket/msg_sys_create_stage.go
@@ -6,7 +6,13 @@ import (
 )
 
 // MsgSysCreateStage represents the MSG_SYS_CREATE_STAGE
-type MsgSysCreateStage struct{}
+type MsgSysCreateStage struct {
+	AckHandle     uint32
+	Unk0          uint8
+	Unk1          uint8
+	StageIDLength uint8
+	StageID       string // NULL terminated string.
+}
 
 // Opcode returns the ID associated with this packet type.
 func (m *MsgSysCreateStage) Opcode() network.PacketID {
@@ -15,10 +21,15 @@ func (m *MsgSysCreateStage) Opcode() network.PacketID {
 
 // Parse parses the packet from binary
 func (m *MsgSysCreateStage) Parse(bf *byteframe.ByteFrame) error {
-	panic("Not implemented")
+	m.AckHandle = bf.ReadUint32()
+	m.Unk0 = bf.ReadUint8()
+	m.Unk1 = bf.ReadUint8()
+	m.StageIDLength = bf.ReadUint8()
+	m.StageID = string(bf.ReadBytes(uint(m.StageIDLength)))
+	return nil
 }
 
 // Build builds a binary packet from the current data.
 func (m *MsgSysCreateStage) Build(bf *byteframe.ByteFrame) error {
 	panic("Not implemented")
-}
\ No newline at end of file
+}
diff --git a/server/channelserver/handlers.go b/server/channelserver/handlers.go
index 21b4bd916..a6c9f8c53 100644
--- a/server/channelserver/handlers.go
+++ b/server/channelserver/handlers.go
@@ -252,7 +252,16 @@ func handleMsgSysRecordLog(s *Session, p mhfpacket.MHFPacket) {}
 
 func handleMsgSysEcho(s *Session, p mhfpacket.MHFPacket) {}
 
-func handleMsgSysCreateStage(s *Session, p mhfpacket.MHFPacket) {}
+func handleMsgSysCreateStage(s *Session, p mhfpacket.MHFPacket) {
+	pkt := p.(*mhfpacket.MsgSysCreateStage)
+
+	s.server.stagesLock.Lock()
+	s.server.stages[stripNullTerminator(s.stageID)] = &Stage{}
+	s.server.stagesLock.Lock()
+
+	resp := make([]byte, 8) // Unk resp.
+	s.QueueAck(pkt.AckHandle, resp)
+}
 
 func handleMsgSysStageDestruct(s *Session, p mhfpacket.MHFPacket) {}