func handleRoomEnter(p *entity.Player, req interface{}) error { pck, ok := req.(*olbattle.RoomEnter) if !ok { return protocol.ErrorInvalidProtocol } log.Debugf("%d:room enter", p.PlayerID) r := GetRoomMgr().RoomEnter(p, pck.BattleDataStr) if r == nil { pck.ErrorCode = int32(protocol.CERROR_ROOM_NOT_FIND) } else { r.addPlayer(p) } p.SendClient(pck) return nil } 注释每行代码

Sure, here's the commented code:

// handleRoomEnter is a function that handles a player entering a room
func handleRoomEnter(p *entity.Player, req interface{}) error {
	// Check if the request is of the correct type
	pck, ok := req.(*olbattle.RoomEnter)
	if !ok {
		return protocol.ErrorInvalidProtocol
	}
	
	// Log that the player is entering the room
	log.Debugf("%d:room enter", p.PlayerID)
	
	// Try to enter the room
	r := GetRoomMgr().RoomEnter(p, pck.BattleDataStr)
	if r == nil {
		// If the room cannot be found, set the error code
		pck.ErrorCode = int32(protocol.CERROR_ROOM_NOT_FIND)
	} else {
		// If the room is found, add the player to the room
		r.addPlayer(p)
	}
	
	// Send the response packet to the client
	p.SendClient(pck)
	
	return nil
}