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/* $Id$ */

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#ifndef GENWORLD_H

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#define GENWORLD_H

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/* If OTTDThread isn't defined, define it to a void, but make sure to undefine

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 *  it after this include. This makes including genworld.h easier, as you

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 *  don't need to include thread.h before it, while it stays possible to

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 *  include it after it, and still work.

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 */

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#ifndef OTTDThread

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#define TEMPORARY_OTTDTHREAD_DEFINITION

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#define OTTDThread void

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#endif

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/*

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 * Order of these enums has to be the same as in lang/english.txt

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 * Otherwise you will get inconsistent behaviour.

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 */

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enum {

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	LG_ORIGINAL     = 0,  //! The original landscape generator

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	LG_TERRAGENESIS = 1,  //! TerraGenesis Perlin landscape generator

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	GENERATE_NEW_SEED = (uint)-1, //! Create a new random seed

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};

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typedef void gw_done_proc(void);

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typedef struct gw_info {

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	bool active;           //! Is generating world active

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	bool abort;            //! Whether to abort the thread ASAP

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	bool wait_for_draw;    //! Are we waiting on a draw event

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	bool quit_thread;      //! Do we want to quit the active thread

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	bool threaded;         //! Whether we run _GenerateWorld threaded

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	int mode;              //! What mode are we making a world in

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	byte lp;               //! The local_player before generating

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	uint size_x;           //! X-size of the map

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	uint size_y;           //! Y-size of the map

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	gw_done_proc *proc;    //! Proc that is called when done (can be NULL)

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	OTTDThread *thread;    //! The thread we are in (can be NULL)

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} gw_info;

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#ifdef TEMPORARY_OTTDTHREAD_DEFINITION

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#undef OTTDThread

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#undef TEMPORARY_OTTDTHREAD_DEFINITION

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#endif

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typedef enum gwp_classes {

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	GWP_MAP_INIT,    /* Initialize/allocate the map, start economy */

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	GWP_LANDSCAPE,   /* Create the landscape */

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	GWP_ROUGH_ROCKY, /* Make rough and rocky areas */

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	GWP_TOWN,        /* Generate towns */

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	GWP_INDUSTRY,    /* Generate industries */

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	GWP_UNMOVABLE,   /* Generate unmovables (radio tower, light houses) */

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	GWP_TREE,        /* Generate trees */

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	GWP_GAME_INIT,   /* Initialize the game */

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	GWP_RUNTILELOOP, /* Runs the tile loop 1280 times to make snow etc */

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	GWP_GAME_START,  /* Really prepare to start the game */

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	GWP_CLASS_COUNT

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} gwp_class;

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/**

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 * Check if we are currently in the process of generating a world.

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 */

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static inline bool IsGeneratingWorld(void)

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{

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	extern gw_info _gw;

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	return _gw.active;

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}

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/* genworld.c */

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void SetGeneratingWorldPaintStatus(bool status);

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bool IsGeneratingWorldReadyForPaint(void);

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bool IsGenerateWorldThreaded(void);

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void GenerateWorldSetCallback(gw_done_proc *proc);

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void WaitTillGeneratedWorld(void);

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void GenerateWorld(int mode, uint size_x, uint size_y);

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void AbortGeneratingWorld(void);

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bool IsGeneratingWorldAborted(void);

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void HandleGeneratingWorldAbortion(void);

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/* genworld_gui.c */

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void SetGeneratingWorldProgress(gwp_class class, uint total);

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void IncreaseGeneratingWorldProgress(gwp_class class);

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void PrepareGenerateWorldProgress(void);

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void ShowGenerateWorldProgress(void);

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void StartNewGameWithoutGUI(uint seed);

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void ShowCreateScenario(void);

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#endif /* GENWORLD_H */