• Try to create a real time gameServer using golang, tcp, protobuf, and concurrency programs.

• First goal: to make a moveable .io game.

• It is a room-type server.

• Room will be assigned automatically upon request.

• The room is assigned to the same room until the room is full, and the room is assigned to the next room when the room is full.

0. Simple run

1. Setting GOPATH to toy_io_server root folder (reference : https://github.com/golang/go/wiki/SettingGOPATH
2. run server : go run toy_io_server\src\toy_io_server\toy_io_server.go
3. run test client : go run toy_io_server\src\toy_io_testClient\toy_io_testClient.go

1. Ready for work install golang 1.12.5

**2. install ide(in my case, used vs code and plugin)

3.download protoc.exe
https://repo1.maven.org/maven2/com/google/protobuf/protoc/3.6.1/

4.download protobuff package
go get github.com/golang/protobuf/proto

5. download protoc go version
go get github.com/golang/protobuf/protoc-gen-go

6. make protobuf go file
protoc --go_out=. returncode.proto
protoc --go_out=. login.proto protoc --go_out=. protocol.proto

7. copy xxx.pb.go to src/packet_xxx folder
copy login.pb.go to src\packet_lobby
copy protocol.pb.go to src\packet_protocol
copy returncode.pb.pb.go to src\returncode.pb\

8. Modify and Use

for go client
protoc --go_out=. login.proto

for c++ client
protoc --cpp_out=. login.proto

reference serialization/deserialization of header : https://golang.org/src/encoding/binary/example_test.go singleton : http://marcio.io/2015/07/singleton-pattern-in-go/