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OpenRCT2/src/openrct2/OpenRCT2.cpp

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#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
/*****************************************************************************
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
* For more information, visit https://github.com/OpenRCT2/OpenRCT2
*
* OpenRCT2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* A full copy of the GNU General Public License can be found in licence.txt
*****************************************************************************/
#pragma endregion
#include <memory>
#include <string>
#include "core/Console.hpp"
#include "core/File.h"
#include "core/FileStream.hpp"
#include "core/Guard.hpp"
#include "core/String.hpp"
#include "FileClassifier.h"
#include "network/network.h"
#include "object/ObjectRepository.h"
#include "OpenRCT2.h"
#include "ParkImporter.h"
#include "platform/crash.h"
#include "PlatformEnvironment.h"
#include "ride/TrackDesignRepository.h"
#include "scenario/ScenarioRepository.h"
#include "title/TitleScreen.h"
#include "title/TitleSequenceManager.h"
#include "Version.h"
extern "C"
{
#include "audio/audio.h"
#include "config/Config.h"
#include "editor.h"
#include "game.h"
#include "interface/chat.h"
#include "interface/themes.h"
#include "intro.h"
#include "localisation/localisation.h"
#include "network/http.h"
#include "object_list.h"
#include "platform/platform.h"
#include "rct1.h"
#include "rct2.h"
#include "rct2/interop.h"
}
// The game update interval in milliseconds, (1000 / 40fps) = 25ms
constexpr uint32 UPDATE_TIME_MS = 25;
extern "C"
{
sint32 gExitCode;
sint32 gOpenRCT2StartupAction = STARTUP_ACTION_TITLE;
utf8 gOpenRCT2StartupActionPath[512] = { 0 };
utf8 gExePath[MAX_PATH];
utf8 gCustomUserDataPath[MAX_PATH] = { 0 };
utf8 gCustomOpenrctDataPath[MAX_PATH] = { 0 };
utf8 gCustomRCT2DataPath[MAX_PATH] = { 0 };
utf8 gCustomPassword[MAX_PATH] = { 0 };
// This should probably be changed later and allow a custom selection of things to initialise like SDL_INIT
bool gOpenRCT2Headless = false;
bool gOpenRCT2ShowChangelog;
bool gOpenRCT2SilentBreakpad;
#ifndef DISABLE_NETWORK
// OpenSSL's message digest context used for calculating sprite checksums
EVP_MD_CTX * gHashCTX = nullptr;
#endif // DISABLE_NETWORK
}
namespace OpenRCT2
{
static IPlatformEnvironment * _env = nullptr;
static bool _isWindowMinimised;
static uint32 _isWindowMinimisedLastCheckTick;
static uint32 _lastTick;
static uint32 _uncapTick;
/** If set, will end the OpenRCT2 game loop. Intentionally private to this module so that the flag can not be set back to false. */
static bool _finished;
static bool ShouldRunVariableFrame();
static void RunGameLoop();
static void RunFixedFrame();
static void RunVariableFrame();
static bool OpenParkAutoDetectFormat(const utf8 * path);
}
extern "C"
{
void openrct2_write_full_version_info(utf8 * buffer, size_t bufferSize)
{
String::Set(buffer, bufferSize, gVersionInfoFull);
}
static void openrct2_set_exe_path()
{
platform_get_exe_path(gExePath, sizeof(gExePath));
log_verbose("Setting exe path to %s", gExePath);
}
bool openrct2_initialise()
{
#ifndef DISABLE_NETWORK
gHashCTX = EVP_MD_CTX_create();
Guard::Assert(gHashCTX != nullptr, "EVP_MD_CTX_create failed");
#endif // DISABLE_NETWORK
crash_init();
// Sets up the environment OpenRCT2 is running in, e.g. directory paths
OpenRCT2::_env = OpenRCT2::SetupEnvironment();
if (OpenRCT2::_env == nullptr)
{
return false;
}
if (!rct2_interop_setup_segment())
{
log_fatal("Unable to load RCT2 data sector");
return false;
}
if (gConfigGeneral.last_run_version != nullptr && String::Equals(gConfigGeneral.last_run_version, OPENRCT2_VERSION))
{
gOpenRCT2ShowChangelog = false;
}
else
{
gOpenRCT2ShowChangelog = true;
gConfigGeneral.last_run_version = String::Duplicate(OPENRCT2_VERSION);
config_save_default();
}
// TODO add configuration option to allow multiple instances
// if (!gOpenRCT2Headless && !platform_lock_single_instance()) {
// log_fatal("OpenRCT2 is already running.");
// return false;
// }
IObjectRepository * objRepo = CreateObjectRepository(OpenRCT2::_env);
ITrackDesignRepository * tdRepo = CreateTrackDesignRepository(OpenRCT2::_env);
IScenarioRepository * scenarioRepo = CreateScenarioRepository(OpenRCT2::_env);
if (!language_open(gConfigGeneral.language))
{
log_error("Failed to open configured language...");
if (!language_open(LANGUAGE_ENGLISH_UK))
{
log_fatal("Failed to open fallback language...");
return false;
}
}
// TODO Ideally we want to delay this until we show the title so that we can
// still open the game window and draw a progress screen for the creation
// of the object cache.
objRepo->LoadOrConstruct();
// TODO Like objects, this can take a while if there are a lot of track designs
// it's also really something we might want to do in the background
// as it's not required until the player wants to place a new ride.
tdRepo->Scan();
scenarioRepo->Scan();
TitleSequenceManager::Scan();
if (!gOpenRCT2Headless)
{
audio_init();
audio_populate_devices();
}
http_init();
theme_manager_initialise();
rct2_interop_setup_hooks();
if (!rct2_init())
{
return false;
}
chat_init();
rct2_copy_original_user_files_over();
return true;
}
/**
* Launches the game, after command line arguments have been parsed and processed.
*/
void openrct2_launch()
{
if (openrct2_initialise())
{
gIntroState = INTRO_STATE_NONE;
if ((gOpenRCT2StartupAction == STARTUP_ACTION_TITLE) && gConfigGeneral.play_intro)
{
gOpenRCT2StartupAction = STARTUP_ACTION_INTRO;
}
switch (gOpenRCT2StartupAction) {
case STARTUP_ACTION_INTRO:
gIntroState = INTRO_STATE_PUBLISHER_BEGIN;
title_load();
break;
case STARTUP_ACTION_TITLE:
title_load();
break;
case STARTUP_ACTION_OPEN:
{
bool parkLoaded = false;
// A path that includes "://" is illegal with all common filesystems, so it is almost certainly a URL
// This way all cURL supported protocols, like http, ftp, scp and smb are automatically handled
if (strstr(gOpenRCT2StartupActionPath, "://") != nullptr)
{
#ifndef DISABLE_HTTP
// Download park and open it using its temporary filename
char tmpPath[MAX_PATH];
if (!http_download_park(gOpenRCT2StartupActionPath, tmpPath))
{
title_load();
break;
}
parkLoaded = OpenRCT2::OpenParkAutoDetectFormat(tmpPath);
#endif
}
else
{
parkLoaded = rct2_open_file(gOpenRCT2StartupActionPath);
}
if (!parkLoaded)
{
Console::Error::WriteLine("Failed to load '%s'", gOpenRCT2StartupActionPath);
title_load();
break;
}
gScreenFlags = SCREEN_FLAGS_PLAYING;
#ifndef DISABLE_NETWORK
if (gNetworkStart == NETWORK_MODE_SERVER)
{
if (gNetworkStartPort == 0)
{
gNetworkStartPort = gConfigNetwork.default_port;
}
if (String::IsNullOrEmpty(gCustomPassword))
{
network_set_password(gConfigNetwork.default_password);
}
else
{
network_set_password(gCustomPassword);
}
network_begin_server(gNetworkStartPort);
}
#endif // DISABLE_NETWORK
break;
}
case STARTUP_ACTION_EDIT:
if (String::SizeOf(gOpenRCT2StartupActionPath) == 0)
{
editor_load();
}
else if (!editor_load_landscape(gOpenRCT2StartupActionPath))
{
title_load();
}
break;
}
#ifndef DISABLE_NETWORK
if (gNetworkStart == NETWORK_MODE_CLIENT)
{
if (gNetworkStartPort == 0)
{
gNetworkStartPort = gConfigNetwork.default_port;
}
network_begin_client(gNetworkStartHost, gNetworkStartPort);
}
#endif // DISABLE_NETWORK
OpenRCT2::RunGameLoop();
}
openrct2_dispose();
}
void openrct2_dispose()
{
network_close();
http_dispose();
language_close_all();
rct2_dispose();
config_release();
#ifndef DISABLE_NETWORK
EVP_MD_CTX_destroy(gHashCTX);
#endif // DISABLE_NETWORK
rct2_interop_dispose();
platform_free();
}
/**
* Causes the OpenRCT2 game loop to finish.
*/
void openrct2_finish()
{
OpenRCT2::_finished = true;
}
bool check_file_path(sint32 pathId)
{
const utf8 * path = get_file_path(pathId);
switch (pathId) {
case PATH_ID_G1:
if (!File::Exists(path))
{
Console::Error::WriteLine("Unable to find '%s'", path);
return false;
}
break;
case PATH_ID_CUSTOM1:
case PATH_ID_CUSTOM2:
if (File::Exists(path))
{
try
{
auto fs = FileStream(path, FILE_MODE_OPEN);
sint32 index = 36 + (pathId - PATH_ID_CUSTOM1);
gRideMusicInfoList[index]->length = fs.GetLength();
}
catch (const Exception &)
{
}
}
break;
}
return true;
}
}
namespace OpenRCT2
{
IPlatformEnvironment * SetupEnvironment()
{
utf8 userPath[MAX_PATH];
platform_resolve_openrct_data_path();
platform_resolve_user_data_path();
platform_get_user_directory(userPath, NULL, sizeof(userPath));
if (!platform_ensure_directory_exists(userPath))
{
Console::Error::WriteLine("Could not create user directory (do you have write access to your documents folder?)");
return nullptr;
}
openrct2_set_exe_path();
config_set_defaults();
if (!config_open_default())
{
if (!config_find_or_browse_install_directory())
{
gConfigGeneral.last_run_version = String::Duplicate(OPENRCT2_VERSION);
config_save_default();
utf8 path[MAX_PATH];
config_get_default_path(path, sizeof(path));
Console::Error::WriteLine("An RCT2 install directory must be specified! Please edit \"game_path\" in %s.", path);
return nullptr;
}
config_save_default();
}
if (!rct2_init_directories())
{
return nullptr;
}
if (!rct2_startup_checks())
{
return nullptr;
}
utf8 path[260];
std::string basePaths[4];
basePaths[(size_t)DIRBASE::RCT1] = String::ToStd(gConfigGeneral.rct1_path);
basePaths[(size_t)DIRBASE::RCT2] = String::ToStd(gConfigGeneral.rct2_path);
platform_get_openrct_data_path(path, sizeof(path));
basePaths[(size_t)DIRBASE::OPENRCT2] = std::string(path);
platform_get_user_directory(path, nullptr, sizeof(path));
basePaths[(size_t)DIRBASE::USER] = std::string(path);
IPlatformEnvironment * env = CreatePlatformEnvironment(basePaths);
return env;
}
/**
* Run the main game loop until the finished flag is set.
*/
static void RunGameLoop()
{
log_verbose("begin openrct2 loop");
_finished = false;
do
{
if (ShouldRunVariableFrame())
{
RunVariableFrame();
}
else
{
RunFixedFrame();
}
}
while (!_finished);
log_verbose("finish openrct2 loop");
}
static bool IsMinimised()
{
// Don't check if window is minimised too frequently (every second is fine)
if (_lastTick > _isWindowMinimisedLastCheckTick + 1000)
{
uint32 windowFlags = SDL_GetWindowFlags(gWindow);
_isWindowMinimised = (windowFlags & SDL_WINDOW_MINIMIZED) ||
(windowFlags & SDL_WINDOW_HIDDEN);
}
return _isWindowMinimised;
}
static bool ShouldRunVariableFrame()
{
if (!gConfigGeneral.uncap_fps) return false;
if (gGameSpeed > 4) return false;
if (gOpenRCT2Headless) return false;
if (IsMinimised()) return false;
return true;
}
static void RunFixedFrame()
{
_uncapTick = 0;
uint32 currentTick = SDL_GetTicks();
uint32 ticksElapsed = currentTick - _lastTick;
if (ticksElapsed < UPDATE_TIME_MS)
{
SDL_Delay(UPDATE_TIME_MS - ticksElapsed);
_lastTick += UPDATE_TIME_MS;
}
else
{
_lastTick = currentTick;
}
platform_process_messages();
rct2_update();
if (!_isWindowMinimised)
{
platform_draw();
}
}
static void RunVariableFrame()
{
uint32 currentTick = SDL_GetTicks();
if (_uncapTick == 0)
{
_uncapTick = currentTick;
sprite_position_tween_reset();
}
// Limit number of updates per loop (any long pauses or debugging can make this update for a very long time)
if (currentTick - _uncapTick > UPDATE_TIME_MS * 60)
{
_uncapTick = currentTick - UPDATE_TIME_MS - 1;
}
platform_process_messages();
while (_uncapTick <= currentTick && currentTick - _uncapTick > UPDATE_TIME_MS)
{
// Get the original position of each sprite
sprite_position_tween_store_a();
// Update the game so the sprite positions update
rct2_update();
// Get the next position of each sprite
sprite_position_tween_store_b();
_uncapTick += UPDATE_TIME_MS;
}
// Tween the position of each sprite from the last position to the new position based on the time between the last
// tick and the next tick.
float nudge = 1 - ((float)(currentTick - _uncapTick) / UPDATE_TIME_MS);
sprite_position_tween_all(nudge);
platform_draw();
sprite_position_tween_restore();
}
static bool OpenParkAutoDetectFormat(const utf8 * path)
{
ClassifiedFile info;
if (TryClassifyFile(path, &info))
{
if (info.Type == FILE_TYPE::SAVED_GAME ||
info.Type == FILE_TYPE::SCENARIO)
{
std::unique_ptr<IParkImporter> parkImporter;
if (info.Version <= 2)
{
parkImporter.reset(ParkImporter::CreateS4());
}
else
{
parkImporter.reset(ParkImporter::CreateS6());
}
if (info.Type == FILE_TYPE::SAVED_GAME)
{
try
{
parkImporter->LoadSavedGame(path);
parkImporter->Import();
game_fix_save_vars();
sprite_position_tween_reset();
gScreenAge = 0;
gLastAutoSaveUpdate = AUTOSAVE_PAUSE;
game_load_init();
return true;
}
catch (const Exception &)
{
Console::Error::WriteLine("Error loading saved game.");
}
}
else
{
try
{
parkImporter->LoadScenario(path);
parkImporter->Import();
game_fix_save_vars();
sprite_position_tween_reset();
gScreenAge = 0;
gLastAutoSaveUpdate = AUTOSAVE_PAUSE;
scenario_begin();
return true;
}
catch (const Exception &)
{
Console::Error::WriteLine("Error loading scenario.");
}
}
}
else
{
Console::Error::WriteLine("Invalid file type.");
}
}
else
{
Console::Error::WriteLine("Unable to detect file type.");
}
return false;
}
}
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