Files @ r22926:82779a967ee2
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Location: cpp/openttd-patchpack/source/src/gamelog.h

Niels Martin Hansen
Change: Modernise music control logic implementation (#6839)

Rewrite of almost the entire music control logic to a more modern style, hopefully also easier to understand. The old playlist handling made it look like arcane magic, which it doesn't have to be.

- Playlists are now stored in std::vector of objects instead of arrays of bytes with magic sentinel values, that need to be rotated around all the time. Position in playlist is stored as a simple index.
- The theme song is now reserved for the title screen, it doesn't play on any of the standard playlists, but is still available for use on custom playlists.
- When the player enters/leaves the game from the main menu, the music always restarts.
- Playback state (playing or not) is kept even if music becomes unavailable due to an empty playlist (or an empty music set), so it can restart immediately if music becomes available again.
- The shuffle algorithm was changed to a standard Fisher-Yates.
- Possibly better behavior when editing a custom playlist while it's playing.
- Custom playlists should be compatible.
- Framework for supporting custom playlists with songs from multiple music sets.
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file gamelog.h Functions to be called to log possibly unsafe game events */

#ifndef GAMELOG_H
#define GAMELOG_H

#include "newgrf_config.h"

/** The actions we log. */
enum GamelogActionType {
	GLAT_START,        ///< Game created
	GLAT_LOAD,         ///< Game loaded
	GLAT_GRF,          ///< GRF changed
	GLAT_CHEAT,        ///< Cheat was used
	GLAT_SETTING,      ///< Setting changed
	GLAT_GRFBUG,       ///< GRF bug was triggered
	GLAT_EMERGENCY,    ///< Emergency savegame
	GLAT_END,          ///< So we know how many GLATs are there
	GLAT_NONE  = 0xFF, ///< No logging active; in savegames, end of list
};

void GamelogStartAction(GamelogActionType at);
void GamelogStopAction();

void GamelogFree(struct LoggedAction *gamelog_action, uint gamelog_actions);
void GamelogReset();

/**
 * Callback for printing text.
 * @param s The string to print.
 */
typedef void GamelogPrintProc(const char *s);
void GamelogPrint(GamelogPrintProc *proc); // needed for WIN32 crash.log

void GamelogPrintDebug(int level);
void GamelogPrintConsole();

void GamelogEmergency();
bool GamelogTestEmergency();

void GamelogRevision();
void GamelogMode();
void GamelogOldver();
void GamelogSetting(const char *name, int32 oldval, int32 newval);

void GamelogGRFUpdate(const GRFConfig *oldg, const GRFConfig *newg);
void GamelogGRFAddList(const GRFConfig *newg);
void GamelogGRFRemove(uint32 grfid);
void GamelogGRFAdd(const GRFConfig *newg);
void GamelogGRFCompatible(const GRFIdentifier *newg);

void GamelogTestRevision();
void GamelogTestMode();

bool GamelogGRFBugReverse(uint32 grfid, uint16 internal_id);

void GamelogInfo(struct LoggedAction *gamelog_action, uint gamelog_actions, uint32 *last_ottd_rev, byte *ever_modified, bool *removed_newgrfs);

#endif /* GAMELOG_H */