cpp/openttd-patchpack/source Files · src/music/music_driver.hpp

Files @ r12087:0095f1069b29

Branch filter:

Location: cpp/openttd-patchpack/source/src/music/music_driver.hpp

r12087:0095f1069b29 825 B text/x-c++hdr Show Annotation Show as Raw Download as Raw

yexo

(svn r16502) -Fix [FS#2935]: when an AI was suspended while in a function called (indirectly) via call/acall/pcall OpenTTD crashed. Fix this by disallowing AIs to be suspended while called via call/acall/pcall.
IMPORTANT FOR AI WRITERS: AIs can no longer call any DoCommand functions (change anything, build vehicles, etc.) in a function called (indirectly) via call/acall/pcall. Where possible, please rewrite your code so it doesn't use call/acall/pcall

/* $Id$ */

/** @file music_driver.hpp Base for all music playback. */

#ifndef MUSIC_MUSIC_DRIVER_HPP
#define MUSIC_MUSIC_DRIVER_HPP

#include "../driver.h"

class MusicDriver: public Driver {
public:
	virtual void PlaySong(const char *filename) = 0;

	virtual void StopSong() = 0;

	virtual bool IsSongPlaying() = 0;

	virtual void SetVolume(byte vol) = 0;
};

class MusicDriverFactoryBase: public DriverFactoryBase {
};

template <class T>
class MusicDriverFactory: public MusicDriverFactoryBase {
public:
	MusicDriverFactory() { this->RegisterDriver(((T *)this)->GetName(), Driver::DT_MUSIC, ((T *)this)->priority); }

	/**
	 * Get the long, human readable, name for the Driver-class.
	 */
	const char *GetName();
};

extern MusicDriver *_music_driver;
extern char *_ini_musicdriver;

#endif /* MUSIC_MUSIC_DRIVER_HPP */