Pyrogenesis HEAD
Pyrogenesis, a RTS Engine
SavedGame.h
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1/* Copyright (C) 2021 Wildfire Games.
2 * This file is part of 0 A.D.
3 *
4 * 0 A.D. is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * 0 A.D. is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef INCLUDED_SAVEDGAME
19#define INCLUDED_SAVEDGAME
20
21#include "ps/CStr.h"
23
24class CSimulation2;
25
26/**
27 * @file
28 * Contains functions for managing saved game archives.
29 *
30 * A saved game is simply a zip archive with the extension '0adsave'
31 * and containing two files:
32 * <ul>
33 * <li>metadata.json - JSON data file containing the game metadata</li>
34 * <li>simulation.dat - the serialized simulation state data</li>
35 * </ul>
36 */
37
38namespace SavedGames
39{
40 /**
41 * Create new saved game archive with given name and simulation data
42 *
43 * @param name Name to save the game with
44 * @param description A user-given description of the save
45 * @param simulation
46 * @param guiMetadataClone if not NULL, store some UI-related data with the saved game
47 * @return INFO::OK if successfully saved, else an error Status
48 */
49 Status Save(const CStrW& name, const CStrW& description, CSimulation2& simulation, const Script::StructuredClone& guiMetadataClone);
50
51 /**
52 * Create new saved game archive with given prefix and simulation data
53 *
54 * @param prefix Create new numbered file starting with this prefix
55 * @param description A user-given description of the save
56 * @param simulation
57 * @param guiMetadataClone if not NULL, store some UI-related data with the saved game
58 * @return INFO::OK if successfully saved, else an error Status
59 */
60 Status SavePrefix(const CStrW& prefix, const CStrW& description, CSimulation2& simulation, const Script::StructuredClone& guiMetadataClone);
61
62 /**
63 * Load saved game archive with the given name
64 *
65 * @param name filename of saved game (without path or extension)
66 * @param scriptInterface
67 * @param[out] metadata object containing metadata associated with saved game,
68 * parsed from metadata.json inside the archive.
69 * @param[out] savedState serialized simulation state stored as string of bytes,
70 * loaded from simulation.dat inside the archive.
71 * @return INFO::OK if successfully loaded, else an error Status
72 */
73 Status Load(const std::wstring& name, const ScriptInterface& scriptInterface, JS::MutableHandleValue metadata, std::string& savedState);
74
75 /**
76 * Get list of saved games for GUI script usage
77 *
78 * @param scriptInterface the ScriptInterface in which to create the return data.
79 * @return array of objects containing saved game data
80 */
81 JS::Value GetSavedGames(const ScriptInterface& scriptInterface);
82
83 /**
84 * Permanently deletes the saved game archive with the given name
85 *
86 * @param name filename of saved game (without path or extension)
87 * @return true if deletion was successful, or false on error
88 */
89 bool DeleteSavedGame(const std::wstring& name);
90}
91
92#endif // INCLUDED_SAVEDGAME
Public API for simulation system.
Definition: Simulation2.h:47
Abstraction around a SpiderMonkey JS::Realm.
Definition: ScriptInterface.h:72
Definition: SavedGame.h:39
Status Load(const std::wstring &name, const ScriptInterface &scriptInterface, JS::MutableHandleValue metadata, std::string &savedState)
Load saved game archive with the given name.
Definition: SavedGame.cpp:207
bool DeleteSavedGame(const std::wstring &name)
Permanently deletes the saved game archive with the given name.
Definition: SavedGame.cpp:285
Status Save(const CStrW &name, const CStrW &description, CSimulation2 &simulation, const Script::StructuredClone &guiMetadataClone)
Create new saved game archive with given name and simulation data.
Definition: SavedGame.cpp:56
JS::Value GetSavedGames(const ScriptInterface &scriptInterface)
Get list of saved games for GUI script usage.
Definition: SavedGame.cpp:231
Status SavePrefix(const CStrW &prefix, const CStrW &description, CSimulation2 &simulation, const Script::StructuredClone &guiMetadataClone)
Create new saved game archive with given prefix and simulation data.
Definition: SavedGame.cpp:41
std::shared_ptr< JSStructuredCloneData > StructuredClone
Structured clones are a way to serialize 'simple' JS::Values into a buffer that can safely be passed ...
Definition: StructuredClone.h:36
i64 Status
Error handling system.
Definition: status.h:173