api.proto

syntax = "proto2";
package api;

option go_package = "./api";

enum Direction {
    UP = 1;
    DOWN = 2;
    LEFT = 3;
    RIGHT = 4;
}

message APIRequest {
    message ConnectMsg {}

    message PingMsg {
        required string token = 1;
    }

    message CreateGameMsg {
        required string token = 1;
        required string player_name = 2;
        required string game_name = 3;
        required int32 width = 4;
        required int32 height = 5;
        required int32 food_static = 6;
        required int32 state_delay_ms = 7;
    }

    message DiscoverGamesMsg {
        required string token = 1;
    }

    message JoinGameMsg {
        required string token = 1;
        required string player_name = 2;
        required string game_name = 3;
        required bool is_player = 4;
    }

    message SteerSnakeMsg {
        required string token = 1;
        required Direction direction = 2;
    }

    message GetGameStateMsg {
        required string token = 1;
    }

    message ExitGameMsg {
        required string token = 1;
    }

    message DisconnectMsg {
        required string token = 1;
    }

    oneof Type {
        ConnectMsg connect = 1;
        PingMsg ping = 2;
        CreateGameMsg create_game = 3;
        DiscoverGamesMsg discover_games = 4;
        JoinGameMsg join_game = 5;
        SteerSnakeMsg steer_snake = 6;
        GetGameStateMsg get_game_state = 7;
        ExitGameMsg exit_game = 8;
        DisconnectMsg disconnect = 9;
    }
}

message APIResponse {
    message SuccessConnectMsg {
        required string token = 1;
        required int32 timeout = 2;
    }

    message AckMsg {}

    message ErrorMsg {
        required string error_message = 1;
    }

    message GameListMsg {
        message GameInfo {
            required string gameName = 1;
            required int32 width = 2;
            required int32 height = 3;
            required int32 stateDelay = 4;
        }
        repeated GameInfo games = 1;
    }

    message GameStateMsg {
        enum Role {
            NORMAL = 0;
            MASTER = 1;
            DEPUTY = 2;
            VIEWER = 3;
        }

        message Coord {
            required sint32 x = 1;
            required sint32 y = 2;
        }

        message Snake {
            required int32 player_id = 1;
            repeated Coord points = 2;
            required Direction head_direction = 3;
        }

        message Player {
            required string name = 1;
            required int32 id = 2;
            required int32 score = 3;
            required Role role = 4;
        }

        repeated Snake snakes = 2;
        repeated Coord foods = 3;
        repeated Player players = 4;
    }

    oneof Type {
        SuccessConnectMsg successConnect = 1;
        AckMsg ack = 2;
        ErrorMsg error = 3;
        GameListMsg game_list = 4;
        GameStateMsg game_state = 5;
    }
}