syntax = "proto2";

package SC2APIProtocol;

import "s2clientprotocol/common.proto";
import "s2clientprotocol/data.proto";
import "s2clientprotocol/debug.proto";
import "s2clientprotocol/error.proto";
import "s2clientprotocol/query.proto";
import "s2clientprotocol/raw.proto";
import "s2clientprotocol/score.proto";
import "s2clientprotocol/spatial.proto";
import "s2clientprotocol/ui.proto";

//
// Notes:
//  Single player flow:
//    1) Call Request.create_game with a valid single player map (a multiplayer map will end right away).
//    2) Call Request.join_game, wait for the response.
//    3) Request.end will terminate the game. Observations can still be made.
//  Multi-player flow:
//    1) Launch two game instances with separate ports.
//    2) Designate a host, and Request.create_game with a multiplayer map.
//    3) Call Request.join on BOTH clients. Join will block until both clients connect.
//    4) Wait for a response from both clients. They can now play/step.
//    5) Steps should be syncronized. One client may time out if they are not. Multiple step sizes are ok.
//    4) Call Request.leave at any point or when the game ends. Observations will not be valid after this.
//
// States:
//
//------------------|---------------------------------------------------|-----------------------|
//  Request         | Valid in State                                    | Transition to State   |
//------------------|---------------------------------------------------|-----------------------|
// create_game      | launched                                          | init_game             |
//                  | ended (singleplayer only)                         | init_game             |
// join_game*       | init_game (singleplayer or multiplayer host only) | in_game               |
//                  | launched (multiplayer client only)                | in_game               |
// restart_game     | ended (singleplayer only)                         | in_game               |
// start_replay     | launched                                          | in_replay             |
//                  | ended (singleplayer only)                         |                       |
// leave_game       | in_game (required when finishing multiplayer)     | launched              |
// quick_save       | in_game                                           |                       |
// quick_load       | in_game                                           |                       |
//                  | ended                                             |                       |
// quit             | any                                               | quit (not sent)       |
// game_info        | in_game                                           |                       |
//                  | in_replay                                         |                       |
//                  | ended                                             |                       |
// observation      | in_game                                           |                       |
//                  | in_replay                                         |                       |
//                  | ended                                             |                       |
// step*            | in_game (not available in realtime mode)          | in_game               |
//                  | in_replay                                         | ended                 |
// action           | in_game (not available to observers)              |                       |
// obs_action       | in_game (only for observers)                      |                       |
//                  | in_replay                                         |                       |
// data             | in_game                                           |                       |
//                  | in_replay                                         |                       |
//                  | ended                                             |                       |
// query            | in_game                                           |                       |
//                  | in_replay                                         |                       |
//                  | ended                                             |                       |
// save_replay      | in_game                                           |                       |
//                  | ended (only after a game)                         |                       |
// map_command      | in_game                                           |                       |
// replay_info      | any                                               |                       |
// available_maps   | any                                               |                       |
// save_map         | any                                               |                       |
// ping             | any                                               |                       |
// debug            | in_game                                           | various               |
//------------------|---------------------------------------------------|-----------------------|
//
// * In multiplayer, these require synchronization between clients.
//
// Notes:
//      - if a request fails, the game remains in the current state.
//

//
// Request/Response
//

message Request {
  oneof request {
    // Game Setup
    RequestCreateGame create_game = 1;          // Send to host to initialize game.
    RequestJoinGame join_game = 2;              // Send to host and all clients for game to begin.
    RequestRestartGame restart_game = 3;        // Single player only. Reinitializes the game with the same player setup.
    RequestStartReplay start_replay = 4;        // Start playing a replay.
    RequestLeaveGame leave_game = 5;            // Multiplayer only. Disconnects from a multiplayer game, equivalent to surrender.

    RequestQuickSave quick_save = 6;            // Saves game to an in-memory bookmark.
    RequestQuickLoad quick_load = 7;            // Loads from an in-memory bookmark.

    RequestQuit quit = 8;                       // Terminates the application.

    // During Game
    RequestGameInfo game_info = 9;              // Static data about the current game and map.
    RequestObservation observation = 10;        // Snapshot of the current game state.
    RequestAction action = 11;                  // Executes an action for a participant.
    RequestObserverAction obs_action = 21;      // Executes an action for an observer.
    RequestStep step = 12;                      // Advances the game simulation.
    RequestData data = 13;                      // Data about different gameplay elements. May be different for different games.
    RequestQuery query = 14;                    // Additional methods for inspecting game state.
    RequestSaveReplay save_replay = 15;         // Generates a replay.
    RequestMapCommand map_command = 22;         // Execute a particular trigger through a string interface

    // Other.
    RequestReplayInfo replay_info = 16;         // Returns metadata about a replay file. Does not load the replay.
    RequestAvailableMaps available_maps = 17;   // Returns directory of maps that can be played on.
    RequestSaveMap save_map = 18;               // Saves binary map data to the local temp directory.

    // Debugging
    RequestPing ping = 19;                      // Network ping for testing connection.
    RequestDebug debug = 20;                    // Display debug information and execute debug actions.
  }
}

message Response {
  oneof response {
    ResponseCreateGame create_game = 1;
    ResponseJoinGame join_game = 2;
    ResponseRestartGame restart_game = 3;
    ResponseStartReplay start_replay = 4;
    ResponseLeaveGame leave_game = 5;

    ResponseQuickSave quick_save = 6;
    ResponseQuickLoad quick_load = 7;

    ResponseQuit quit = 8;

    ResponseGameInfo game_info = 9;
    ResponseObservation observation = 10;
    ResponseAction action = 11;
    ResponseObserverAction obs_action = 21;
    ResponseStep step = 12;
    ResponseData data = 13;
    ResponseQuery query = 14;
    ResponseSaveReplay save_replay = 15;

    ResponseReplayInfo replay_info = 16;
    ResponseAvailableMaps available_maps = 17;
    ResponseSaveMap save_map = 18;
    ResponseMapCommand map_command = 22;

    // Debugging
    ResponsePing ping = 19;
    ResponseDebug debug = 20;
  }
  repeated string error = 98;                   // If command is missing, this will contain the error. Otherwise this will contain any warnings.
  optional Status status = 99;                  // Should be sent back with all responses.
}

enum Status {
  Launched = 1;                                 // Game has been launch and is not yet doing anything.
  InitGame = 2;                                // Create game has been called, and the host is awaiting players.
  InGame = 3;                                  // In a single or multiplayer game.
  InReplay = 4;                                // In a replay.
  Ended = 5;                                    // Game has ended, can still request game info, but ready for a new game.
  Quit = 6;                                     // Application is shutting down.
  Unknown = 99;                                 // Should not happen, but indicates an error if it occurs.
}

//-----------------------------------------------------------------------------
// If successful, puts the game into the status: init_game.
// The next expected request should be RequestJoinGame. Can also quit (exit).
message RequestCreateGame {
  oneof Map {
    LocalMap local_map = 1;                         // Local .SC2Map file
    string battlenet_map_name = 2;                  // Map published to BattleNet
  }

  repeated PlayerSetup player_setup = 3;

  optional bool disable_fog = 4;

  optional uint32 random_seed = 5;                  // Sets the pseudo-random seed for the game.
  optional bool realtime = 6;                       // If set, the game plays in real time.
}

message LocalMap {
  // A map can be specified either by a file path or the data of the .SC2Map file.
  // If you provide both, it will play the game using map_data and store map_path
  // into the replay. (260 character max)
  optional string map_path = 1;
  optional bytes map_data = 7;
}

message ResponseCreateGame {
  enum Error {
    MissingMap = 1;
    InvalidMapPath = 2;
    InvalidMapData = 3;
    InvalidMapName = 4;
    InvalidMapHandle = 5;
    MissingPlayerSetup = 6;
    InvalidPlayerSetup = 7;
    MultiplayerUnsupported = 8;                     // Multiplayer is not supported in the current build.
  }
  optional Error error = 1;
  optional string error_details = 2;
}

//-----------------------------------------------------------------------------
// If successful, puts the game into the status: in_game. Will be able to
// request actions, observations and step the game.
message RequestJoinGame {
  oneof participation {
    Race race = 1;                          // Join as participant
    uint32 observed_player_id = 2;          // Join as observer
  }

  optional InterfaceOptions options = 3;    // This is limited to what is specified in RequestCreateGame, but you can request less information if you want.
  optional PortSet server_ports = 4;        // Do not set in the single-player case. This is the port a server will use.
  repeated PortSet client_ports = 5;        // Do not set in the single-player case. These are the ports clients will use to initialize communication.
                                            // Currently only a singe client is supported.
  optional int32 shared_port = 6;
  optional string player_name = 7;          // Use this to set the player's name to something other than autogenerated name.
}

message PortSet {
  optional int32 game_port = 1;             // Game right now needs two internal ports to establish a multiplay game on the local host.
  optional int32 base_port = 2;
}

message ResponseJoinGame {
  optional uint32 player_id = 1;

  enum Error {
    MissingParticipation = 1;
    InvalidObservedPlayerId = 2;
    MissingOptions = 3;
    MissingPorts = 4;
    GameFull = 5;
    LaunchError = 6;

    // Multiplayer specific.
    FeatureUnsupported = 7;                 // Multiplayer is not supported in the current build for the requested features.
    NoSpaceForUser = 8;
    MapDoesNotExist = 9;
    CannotOpenMap = 10;
    ChecksumError = 11;
    NetworkError = 12;
    OtherError = 13;
  }
  optional Error error = 2;
  optional string error_details = 3;
}

//-----------------------------------------------------------------------------
message RequestRestartGame {
}

message ResponseRestartGame {
  enum Error {
    LaunchError = 1;
  }
  optional Error error = 1;
  optional string error_details = 2;
}

//-----------------------------------------------------------------------------
message RequestStartReplay {
  oneof replay {
    string replay_path = 1;
    bytes replay_data = 5;
  }
  optional bytes map_data = 6;                      // Overrides the map path stored in the replay.
  optional int32 observed_player_id = 2;
  optional InterfaceOptions options = 3;

  optional bool disable_fog = 4;
  optional bool realtime = 7;
}

message ResponseStartReplay {
  enum Error {
    MissingReplay = 1;
    InvalidReplayPath = 2;
    InvalidReplayData = 3;
    InvalidMapData = 4;
    InvalidObservedPlayerId = 5;
    MissingOptions = 6;
    LaunchError = 7;
  }
  optional Error error = 1;
  optional string error_details = 2;
}

//-----------------------------------------------------------------------------
message RequestMapCommand {
  optional string trigger_cmd = 1;
}

message ResponseMapCommand {
  enum Error {
    NoTriggerError = 1;
  }
  optional Error error = 1;
  optional string error_details = 2;
}

//-----------------------------------------------------------------------------
message RequestLeaveGame {
}

message ResponseLeaveGame {
}

//-----------------------------------------------------------------------------
message RequestQuickSave {
}

//-----------------------------------------------------------------------------
message ResponseQuickSave {
}

//-----------------------------------------------------------------------------
message RequestQuickLoad {
}

//-----------------------------------------------------------------------------
message ResponseQuickLoad {
}

//-----------------------------------------------------------------------------
message RequestQuit {
}

message ResponseQuit {
}

//-----------------------------------------------------------------------------
message RequestGameInfo {
}

message ResponseGameInfo {
  optional string map_name = 1;
  repeated string mod_names = 6;
  optional string local_map_path = 2;
  repeated PlayerInfo player_info = 3;
  optional StartRaw start_raw = 4;               // Populated if Raw interface is enabled.
  optional InterfaceOptions options = 5;
}

//-----------------------------------------------------------------------------
message RequestObservation {
  optional bool disable_fog = 1;
}

message ResponseObservation {
  repeated Action actions = 1;                  // Actions this player did since the last Observation.
  repeated ActionError action_errors = 2;       // Equivalent of UI "red text" errors.
  optional Observation observation = 3;
  repeated PlayerResult player_result = 4;      // Only populated if the game ended during this step.
  repeated ChatReceived chat = 5;
}

message ChatReceived {
  optional uint32 player_id = 1;
  optional string message = 2;
}

//-----------------------------------------------------------------------------
message RequestAction {
   repeated Action actions = 1;
}

message ResponseAction {
   repeated ActionResult result = 1;
}

//-----------------------------------------------------------------------------
message RequestObserverAction {
   repeated ObserverAction actions = 1;
}

message ResponseObserverAction  {

}

//-----------------------------------------------------------------------------
message RequestStep {
  optional uint32 count = 1;                    // Number of game loops to simulate for the next frame.
}

message ResponseStep {
}

//-----------------------------------------------------------------------------
message RequestData {
  optional bool ability_id = 1;
  optional bool unit_type_id = 2;
  optional bool upgrade_id = 3;
  optional bool buff_id = 4;
  optional bool effect_id = 5;
}

message ResponseData {
  repeated AbilityData abilities = 1;
  repeated UnitTypeData units = 2;
  repeated UpgradeData upgrades = 3;
  repeated BuffData buffs = 4;
  repeated EffectData effects = 5;
}

//-----------------------------------------------------------------------------
message RequestSaveReplay {
}

message ResponseSaveReplay {
  optional bytes data = 1;
}

//-----------------------------------------------------------------------------
message RequestReplayInfo {
  oneof replay {
    string replay_path = 1;         // Limitation: might fail if the replay file is currently loaded.
    bytes replay_data = 2;
  }
  optional bool download_data = 3;  // Ensure the data and binary are downloaded if this is an old version replay.
}

message PlayerInfoExtra {
  optional PlayerInfo player_info = 1;
  optional PlayerResult player_result = 2;
  optional int32 player_mmr = 3;
  optional int32 player_apm = 4;
}

message ResponseReplayInfo {
  optional string map_name = 1;
  optional string local_map_path = 2;
  repeated PlayerInfoExtra player_info = 3;
  optional uint32 game_duration_loops = 4;
  optional float game_duration_seconds = 5;
  optional string game_version = 6;
  optional string data_version = 11;
  optional uint32 data_build = 7;
  optional uint32 base_build = 8;

  enum Error {
    MissingReplay = 1;
    InvalidReplayPath = 2;
    InvalidReplayData = 3;
    ParsingError = 4;
    DownloadError = 5;
  }
  optional Error error = 9;
  optional string error_details = 10;
}

//-----------------------------------------------------------------------------
message RequestAvailableMaps {
}

// This will only contain locally cached BattleNet maps.
// To download all ladder maps, log in and queue into a ladder match.
// To download any other map, play a custom game on that map.
message ResponseAvailableMaps {
  repeated string local_map_paths = 1;              // All the maps in the "Maps/" directory.
  repeated string battlenet_map_names = 2;          // All the maps in the BattleNet cache.
}

//-----------------------------------------------------------------------------
// Copies map data into the path specified.
message RequestSaveMap {
  optional string map_path = 1;                 // Path the game process will write to, relative to the temp directory. (260 character max)
  optional bytes map_data = 2;                  // Binary map data of a .SC2Map.
}

message ResponseSaveMap {
  enum Error {
    InvalidMapData = 1;
  }
  optional Error error = 1;
}

//-----------------------------------------------------------------------------
message RequestPing {
}

message ResponsePing {
  optional string game_version = 1;
  optional string data_version = 2;
  optional uint32 data_build = 3;
  optional uint32 base_build = 4;
}

//-----------------------------------------------------------------------------
message RequestDebug {
  repeated DebugCommand debug = 1;
}

message ResponseDebug {
}


//
// Game Setup
//

enum Difficulty {
  VeryEasy = 1;
  Easy = 2;
  Medium = 3;
  MediumHard = 4;
  Hard = 5;
  Harder = 6;
  VeryHard = 7;
  CheatVision = 8;
  CheatMoney = 9;
  CheatInsane = 10;
}

enum PlayerType {
  Participant = 1;
  Computer = 2;
  Observer = 3;
}

message PlayerSetup {
  optional PlayerType type = 1;

  // Only used for a computer player.
  optional Race race = 2;
  optional Difficulty difficulty = 3;
  optional string player_name = 4;      // Not implemented. Use player_name in request join game instead.
}

message SpatialCameraSetup {
  optional float width = 1;
  optional Size2DI resolution = 2;
  optional Size2DI minimap_resolution = 3;
}

message InterfaceOptions {
  // Interface options
  optional bool raw = 1;
  optional bool score = 2;
  optional SpatialCameraSetup feature_layer = 3;    // Omit to disable.
  optional SpatialCameraSetup render = 4;           // Not implemented.
}

message PlayerInfo {
  // Identifier that will be used to reference this player.
  // SC2 will always assign playerIds starting from 1 in standard Melee maps. This may not be true in custom maps.
  optional uint32 player_id = 1;
  optional PlayerType type = 2;
  optional Race race_requested = 3;
  optional Race race_actual = 4; // Only populated for your player or when watching replay
  optional Difficulty difficulty = 5;
  optional string player_name = 6;
}


//
// During Game
//

message PlayerCommon {
  optional uint32 player_id = 1;
  optional uint32 minerals = 2;
  optional uint32 vespene = 3;
  optional uint32 food_cap = 4;
  optional uint32 food_used = 5;
  optional uint32 food_army = 6;
  optional uint32 food_workers = 7;
  optional uint32 idle_worker_count = 8;
  optional uint32 army_count = 9;
  optional uint32 warp_gate_count = 10;
  optional uint32 larva_count = 11;
}

message Observation {
  optional uint32 game_loop = 9;
  optional PlayerCommon player_common = 1;
  repeated Alert alerts = 10;
  repeated AvailableAbility abilities = 3;                  // Abilities available in the selection. Enabled if in this list, disabled otherwise.
  optional Score score = 4;

  optional ObservationRaw raw_data = 5;                     // Populated if Raw interface is enabled.
  optional ObservationFeatureLayer feature_layer_data = 6;  // Populated if Feature Layer interface is enabled.
  optional ObservationRender render_data = 7;               // Populated if Render interface is enabled.
  optional ObservationUI ui_data = 8;                       // Populated if Feature Layer or Render interface is enabled.
}

message Action {
  optional ActionRaw action_raw = 1;                        // Populated if Raw interface is enabled.
  optional ActionSpatial action_feature_layer = 2;          // Populated if Feature Layer interface is enabled.
  optional ActionSpatial action_render = 3;                 // Not implemented. Populated if Render interface is enabled.
  optional ActionUI action_ui = 4;                          // Populated if Feature Layer or Render interface is enabled.
  optional ActionChat action_chat = 6;                      // Chat messages as a player typing into the chat channel.
}

message ActionChat {
  enum Channel {
    Broadcast = 1;
    Team = 2;
  }
  optional Channel channel = 1;
  optional string message = 2;
}

message ActionError {
  optional uint64 unit_tag = 1;                             // Only populated when using raw interface.
  optional uint64 ability_id = 2;
  optional ActionResult result = 3;
}

message ObserverAction {
  oneof action {
    ActionObserverPlayerPerspective player_perspective = 1;         // Not implemented
    ActionObserverCameraMove camera_move = 2;
    ActionObserverCameraFollowPlayer camera_follow_player = 3;
    ActionObserverCameraFollowUnits camera_follow_units = 4;        // Not implemented
  }
}

message ActionObserverPlayerPerspective {
  optional uint32 player_id = 1;        // 0 to observe "Everyone"
}

message ActionObserverCameraMove {
  optional Point2D world_pos = 1;

  // Distance between camera and terrain. Larger value zooms out camera.
  // Defaults to standard camera distance if set to 0.
  optional float distance = 2;
}

message ActionObserverCameraFollowPlayer {
  optional uint32 player_id = 1;        // Not implemented. Value must be [1, 15]
}

message ActionObserverCameraFollowUnits {
  repeated uint64 unit_tags = 1;
}

enum Alert {
  NuclearLaunchDetected = 1;
  NydusWormDetected = 2;
}

enum Result {
  Victory = 1;
  Defeat = 2;
  Tie = 3;
  Undecided = 4;
}

message PlayerResult {
  optional uint32 player_id = 1;
  optional Result result = 2;
}