// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.game.tennis;

[Discoverable]
protocol TennisService {
    GetState() -> (GameState state);
    RegisterPaddle(string player_name, Paddle paddle);
};

struct GameState {
    float64 ballX;
    float64 ballY;
    float64 player_1_y; // player 1 is on the left side of the screen
    float64 player_2_y;
    int64 player_1_score;
    int64 player_2_score;
    int64 time; // start of each game is zero, represents in-game time steps elapsed
    int64 game_num; // increments by one any time a new game starts, 0 if not enough players yet
    string player_1_name;
    string player_2_name;
};

protocol Paddle {
    NewGame(bool is_player_2);
    -> Up();
    -> Down();
    -> Stop();
};