/*
===========================================================================
Copyright (C) 1999 - 2005, Id Software, Inc.
Copyright (C) 2000 - 2013, Raven Software, Inc.
Copyright (C) 2001 - 2013, Activision, Inc.
Copyright (C) 2013 - 2015, OpenJK contributors

This file is part of the OpenJK source code.

OpenJK is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.

This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
===========================================================================
*/

#ifndef __G_PUBLIC_H__
#define __G_PUBLIC_H__
// g_public.h -- game module information visible to server

#define	GAME_API_VERSION	10

// entity->svFlags
// the server does not know how to interpret most of the values
// in entityStates (level eType), so the game must explicitly flag
// special server behaviors
#define	SVF_NOCLIENT			0x00000001	// don't send entity to clients, even if it has effects
#define SVF_INACTIVE			0x00000002	// Can't be used when this flag is on
#define SVF_NPC					0x00000004
#define SVF_BOT					0x00000008
#define SVF_PLAYER_USABLE		0x00000010	// player can use this with the use button
#define	SVF_BROADCAST			0x00000020	// send to all connected clients
#define	SVF_PORTAL				0x00000040	// merge a second pvs at origin2 into snapshots
#define	SVF_USE_CURRENT_ORIGIN	0x00000080	// entity->currentOrigin instead of entity->s.origin
											// for link position (missiles and movers)
#define SVF_TRIMODEL			0x00000100	// Use a three piece model make up like a player does
#define	SVF_OBJECTIVE			0x00000200	// Draw it's name if crosshair comes across it
#define	SVF_ANIMATING			0x00000400	// Currently animating from startFrame to endFrame
#define	SVF_NPC_PRECACHE		0x00000800	// Tell cgame to precache this spawner's NPC stuff
#define	SVF_KILLED_SELF			0x00001000	// ent killed itself in a script, so don't do ICARUS_FreeEnt on it... or else!
#define	SVF_NAVGOAL				0x00002000	// Navgoal
#define	SVF_NOPUSH				0x00004000	// Can't be pushed around
#define	SVF_ICARUS_FREEZE		0x00008000	// NPCs are frozen, ents don't execute ICARUS commands
#define SVF_PLAT				0x00010000	// A func_plat or door acting like one
#define	SVF_BBRUSH				0x00020000	// breakable brush
#define	SVF_LOCKEDENEMY			0x00040000	// keep current enemy until dead
#define SVF_IGNORE_ENEMIES		0x00080000	// Ignore all enemies
#define SVF_BEAMING				0x00100000	// Being transported
#define SVF_PLAYING_SOUND		0x00200000	// In the middle of playing a sound
#define SVF_CUSTOM_GRAVITY		0x00400000	// Use personal gravity
#define SVF_BROKEN				0x00800000	// A broken misc_model_breakable
#define SVF_NO_TELEPORT			0x01000000	// Will not be teleported
#define SVF_NONNPC_ENEMY		0x02000000	// Not a client/NPC, but can still be considered a hostile lifeform
#define SVF_SELF_ANIMATING		0x04000000	// Ent will control it's animation itself in it's think func
#define SVF_GLASS_BRUSH			0x08000000	// Ent is a glass brush
#define SVF_NO_BASIC_SOUNDS		0x10000000	// Don't load basic custom sound set
#define SVF_NO_COMBAT_SOUNDS	0x20000000	// Don't load combat custom sound set
#define SVF_NO_EXTRA_SOUNDS		0x40000000	// Don't load extra custom sound set
#define SVF_MOVER_ADJ_AREA_PORTALS	0x80000000	// For scripted movers only- must *explicitly instruct* them to affect area portals
//===============================================================

typedef struct gentity_s gentity_t;
//typedef struct gclient_s gclient_t;

typedef enum
{
	eNO = 0,
	eFULL,
	eAUTO,
} SavedGameJustLoaded_e;


#define GAME_INCLUDE
#ifndef GAME_INCLUDE

// the server needs to know enough information to handle collision and snapshot generation

struct gentity_s {
	entityState_t	s;				// communicated by server to clients
	struct playerState_s	*client;
	qboolean	inuse;
	qboolean	linked;				// qfalse if not in any good cluster

	int			svFlags;			// SVF_NOCLIENT, SVF_BROADCAST, etc

	qboolean	bmodel;				// if false, assume an explicit mins / maxs bounding box
									// only set by gi.SetBrushModel
	vec3_t		mins, maxs;
	int			contents;			// CONTENTS_TRIGGER, CONTENTS_SOLID, CONTENTS_BODY, etc
									// a non-solid entity should set to 0

	vec3_t		absmin, absmax;		// derived from mins/maxs and origin + rotation

	// currentOrigin will be used for all collision detection and world linking.
	// it will not necessarily be the same as the trajectory evaluation for the current
	// time, because each entity must be moved one at a time after time is advanced
	// to avoid simultanious collision issues
	vec3_t		currentOrigin;
	vec3_t		currentAngles;

	gentity_t	*owner;				// objects never interact with their owners, to
									// prevent player missiles from immediately
									// colliding with their owner
/*
Ghoul2 Insert Start
*/
	// this marker thing of Jake's is used for memcpy() length calcs, so don't put any ordinary fields (like above)
	//	below this point or they won't work, and will mess up all sorts of stuff. 
	//
	CGhoul2Info_v	ghoul2;
/*
Ghoul2 Insert End
*/
	// the game dll can add anything it wants after
	// this point in the structure
};

#endif		// GAME_INCLUDE

//===============================================================

//
// functions provided by the main engine
//
/*
Ghoul2 Insert Start
*/
class CMiniHeap;
/*
Ghoul2 Insert End
*/
typedef struct {
	//============== general Quake services ==================

	// print message on the local console
	void	(*Printf)( const char *fmt, ... );

	// Write a camera ref_tag to cameras.map
	void	(*WriteCam)( const char *text );
	void	(*FlushCamFile)();

	// abort the game
	NORETURN_PTR void	(*Error)( int level, const char *fmt, ... );

	// get current time for profiling reasons
	// this should NOT be used for any game related tasks,
	// because it is not journaled
	int		(*Milliseconds)( void );

	// console variable interaction
	cvar_t	*(*cvar)( const char *var_name, const char *value, int flags );
	void	(*cvar_set)( const char *var_name, const char *value );
	int		(*Cvar_VariableIntegerValue)( const char *var_name );
	void	(*Cvar_VariableStringBuffer)( const char *var_name, char *buffer, int bufsize );

	// ClientCommand and ServerCommand parameter access
	int		(*argc)( void );
	char	*(*argv)( int n );

	int		(*FS_FOpenFile)( const char *qpath, fileHandle_t *file, fsMode_t mode );
	int		(*FS_Read)( void *buffer, int len, fileHandle_t f );
	int		(*FS_Write)( const void *buffer, int len, fileHandle_t f );
	void	(*FS_FCloseFile)( fileHandle_t f );
	long	(*FS_ReadFile)( const char *name, void **buf );
	void	(*FS_FreeFile)( void *buf );
	int		(*FS_GetFileList)(  const char *path, const char *extension, char *listbuf, int bufsize );

	// Savegame handling
	//
	ojk::ISavedGame* saved_game;

	// add commands to the console as if they were typed in
	// for map changing, etc
	void	(*SendConsoleCommand)( const char *text );


	//=========== server specific functionality =============

	// kick a client off the server with a message
	void	(*DropClient)( int clientNum, const char *reason );

	// reliably sends a command string to be interpreted by the given
	// client.  If clientNum is -1, it will be sent to all clients
	void	(*SendServerCommand)( int clientNum, const char *fmt, ... );

	// config strings hold all the index strings, and various other information
	// that is reliably communicated to all clients
	// All of the current configstrings are sent to clients when
	// they connect, and changes are sent to all connected clients.
	// All confgstrings are cleared at each level start.
	void	(*SetConfigstring)( int num, const char *string );
	void	(*GetConfigstring)( int num, char *buffer, int bufferSize );

	// userinfo strings are maintained by the server system, so they
	// are persistant across level loads, while all other game visible
	// data is completely reset
	void	(*GetUserinfo)( int num, char *buffer, int bufferSize );
	void	(*SetUserinfo)( int num, const char *buffer );

	// the serverinfo info string has all the cvars visible to server browsers
	void	(*GetServerinfo)( char *buffer, int bufferSize );

	// sets mins and maxs based on the brushmodel name
	void	(*SetBrushModel)( gentity_t *ent, const char *name );

	// collision detection against all linked entities
	void	(*trace)( trace_t *results, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, 
			const int passEntityNum, const int contentmask , const EG2_Collision eG2TraceType , const int useLod );

	// point contents against all linked entities
	int		(*pointcontents)( const vec3_t point, int passEntityNum );
	// what contents are on the map? 
	int		(*totalMapContents)();

	qboolean	(*inPVS)( const vec3_t p1, const vec3_t p2 );
	qboolean	(*inPVSIgnorePortals)( const vec3_t p1, const vec3_t p2 );
	void		(*AdjustAreaPortalState)( gentity_t *ent, qboolean open );
	qboolean	(*AreasConnected)( int area1, int area2 );

	// an entity will never be sent to a client or used for collision
	// if it is not passed to linkentity.  If the size, position, or
	// solidity changes, it must be relinked.
	void	(*linkentity)( gentity_t *ent );
	void	(*unlinkentity)( gentity_t *ent );		// call before removing an interactive entity

	// EntitiesInBox will return brush models based on their bounding box,
	// so exact determination must still be done with EntityContact
	int		(*EntitiesInBox)( const vec3_t mins, const vec3_t maxs, gentity_t **list, int maxcount );

	// perform an exact check against inline brush models of non-square shape
	qboolean	(*EntityContact)( const vec3_t mins, const vec3_t maxs, const gentity_t *ent );

	// sound volume values
	int		*VoiceVolume;

	// dynamic memory allocator for things that need to be freed
	void		*(*Malloc)( int iSize, memtag_t eTag, qboolean bZeroIt);	// see qcommon/tags.h for choices
	int			(*Free)( void *buf );
	qboolean	(*bIsFromZone)( void *buf, memtag_t eTag);	// see qcommon/tags.h for choices

/*
Ghoul2 Insert Start
*/
	qhandle_t	(*G2API_PrecacheGhoul2Model)(const char *fileName);

	int			(*G2API_InitGhoul2Model)(CGhoul2Info_v &ghoul2, const char *fileName, int modelIndex, qhandle_t customSkin,
								  qhandle_t customShader, int modelFlags, int lodBias );
	qboolean	(*G2API_SetSkin)(CGhoul2Info *ghlInfo, qhandle_t customSkin, qhandle_t renderSkin );
	qboolean	(*G2API_SetBoneAnim)(CGhoul2Info *ghlInfo, const char *boneName, const int startFrame, const int endFrame,
							  const int flags, const float animSpeed, const int currentTime, const float setFrame, const int blendTime );
	qboolean	(*G2API_SetBoneAngles)(CGhoul2Info *ghlInfo, const char *boneName, const vec3_t angles,
								   const int flags, const Eorientations up, const Eorientations right, const Eorientations forward,
								   qhandle_t *modelList, int blendTime , int blendStart );
	qboolean	(*G2API_SetBoneAnglesIndex)(CGhoul2Info *ghlInfo, const int index, const vec3_t angles, const int flags,
							 const Eorientations yaw, const Eorientations pitch, const Eorientations roll,
							 qhandle_t *modelList, int blendTime, int currentTime );
	qboolean	(*G2API_SetBoneAnglesMatrix)(CGhoul2Info *ghlInfo, const char *boneName, const mdxaBone_t &matrix, const int flags,
									  qhandle_t *modelList, int blendTime , int currentTime );
	void		(*G2API_CopyGhoul2Instance)(CGhoul2Info_v &ghoul2From, CGhoul2Info_v &ghoul2To, int modelIndex );
	qboolean	(*G2API_SetBoneAnimIndex)(CGhoul2Info *ghlInfo, const int index, const int startFrame, const int endFrame, const int flags, 
							const float animSpeed, const int currentTime, const float setFrame , const int blendTime );

	qboolean	(*G2API_SetLodBias)(CGhoul2Info *ghlInfo, int lodBias);
	qboolean	(*G2API_SetShader)(CGhoul2Info *ghlInfo, qhandle_t customShader);
	qboolean	(*G2API_RemoveGhoul2Model)(CGhoul2Info_v &ghlInfo, const int modelIndex);
	qboolean	(*G2API_SetSurfaceOnOff)(CGhoul2Info *ghlInfo, const char *surfaceName, const int flags);
	qboolean	(*G2API_SetRootSurface)(CGhoul2Info_v &ghlInfo, const int modelIndex, const char *surfaceName);
	qboolean	(*G2API_RemoveSurface)(CGhoul2Info *ghlInfo, const int index);
	int			(*G2API_AddSurface)(CGhoul2Info *ghlInfo, int surfaceNumber, int polyNumber, float BarycentricI, float BarycentricJ, int lod );
	qboolean	(*G2API_GetBoneAnim)(CGhoul2Info *ghlInfo, const char *boneName, const int currentTime, float *currentFrame,
							  int *startFrame, int *endFrame, int *flags, float *animSpeed, int *modelList);
	qboolean	(*G2API_GetBoneAnimIndex)(CGhoul2Info *ghlInfo, const int iBoneIndex, const int currentTime, float *currentFrame,
							  int *startFrame, int *endFrame, int *flags, float *animSpeed, int *modelList);
	qboolean	(*G2API_GetAnimRange)(CGhoul2Info *ghlInfo, const char *boneName,	int *startFrame, int *endFrame);
	qboolean	(*G2API_GetAnimRangeIndex)(CGhoul2Info *ghlInfo, const int boneIndex,	int *startFrame, int *endFrame);

	qboolean	(*G2API_PauseBoneAnim)(CGhoul2Info *ghlInfo, const char *boneName, const int currentTime);
	qboolean	(*G2API_PauseBoneAnimIndex)(CGhoul2Info *ghlInfo, const int boneIndex, const int currentTime);
	qboolean	(*G2API_IsPaused)(CGhoul2Info *ghlInfo, const char *boneName);
	qboolean	(*G2API_StopBoneAnim)(CGhoul2Info *ghlInfo, const char *boneName);
	qboolean	(*G2API_StopBoneAngles)(CGhoul2Info *ghlInfo, const char *boneName);
	qboolean	(*G2API_RemoveBone)(CGhoul2Info *ghlInfo, const char *boneName);
	qboolean	(*G2API_RemoveBolt)(CGhoul2Info *ghlInfo, const int index);
	int			(*G2API_AddBolt)(CGhoul2Info *ghlInfo, const char *boneName);
	int			(*G2API_AddBoltSurfNum)(CGhoul2Info *ghlInfo, const int surfIndex);
	qboolean	(*G2API_AttachG2Model)(CGhoul2Info *ghlInfo, CGhoul2Info *ghlInfoTo, int toBoltIndex, int toModel);
	qboolean	(*G2API_DetachG2Model)(CGhoul2Info *ghlInfo);
	qboolean	(*G2API_AttachEnt)(int *boltInfo, CGhoul2Info *ghlInfoTo, int toBoltIndex, int entNum, int toModelNum);
	void		(*G2API_DetachEnt)(int *boltInfo);

	qboolean	(*G2API_GetBoltMatrix)(CGhoul2Info_v &ghoul2, const int modelIndex, const int boltIndex, mdxaBone_t *matrix, 
			const vec3_t angles, const vec3_t position, const int frameNum, qhandle_t *modelList, const vec3_t scale);

	void		(*G2API_ListSurfaces)(CGhoul2Info *ghlInfo);
	void		(*G2API_ListBones)(CGhoul2Info *ghlInfo, int frame);
	qboolean	(*G2API_HaveWeGhoul2Models)(CGhoul2Info_v &ghoul2);
	qboolean	(*G2API_SetGhoul2ModelFlags)(CGhoul2Info *ghlInfo, const int flags);
	int			(*G2API_GetGhoul2ModelFlags)(CGhoul2Info *ghlInfo);

	qboolean	(*G2API_GetAnimFileName)(CGhoul2Info *ghlInfo, char **filename);
	void		(*G2API_CollisionDetect)(CCollisionRecord *collRecMap, CGhoul2Info_v &ghoul2, const vec3_t angles, const vec3_t position,
									int frameNumber, int entNum, vec3_t rayStart, vec3_t rayEnd, vec3_t scale, CMiniHeap *G2VertSpace,
									EG2_Collision eG2TraceType, int useLod, float fRadius);
	void		(*G2API_GiveMeVectorFromMatrix)(mdxaBone_t &boltMatrix, Eorientations flags, vec3_t &vec);
	void		(*G2API_CleanGhoul2Models)(CGhoul2Info_v &ghoul2);
	IGhoul2InfoArray &		(*TheGhoul2InfoArray)();
	int			(*G2API_GetParentSurface)(CGhoul2Info *ghlInfo, const int index);
	int			(*G2API_GetSurfaceIndex)(CGhoul2Info *ghlInfo, const char *surfaceName);
	char		*(*G2API_GetSurfaceName)(CGhoul2Info *ghlInfo, int surfNumber);
	char		*(*G2API_GetGLAName)(CGhoul2Info *ghlInfo);
	qboolean	(*G2API_SetNewOrigin)(CGhoul2Info *ghlInfo, const int boltIndex);
	int			(*G2API_GetBoneIndex)(CGhoul2Info *ghlInfo, const char *boneName, qboolean bAddIfNotFound);
	qboolean	(*G2API_StopBoneAnglesIndex)(CGhoul2Info *ghlInfo, const int index);
	qboolean	(*G2API_StopBoneAnimIndex)(CGhoul2Info *ghlInfo, const int index);
	qboolean	(*G2API_SetBoneAnglesMatrixIndex)(CGhoul2Info *ghlInfo, const int index, const mdxaBone_t &matrix,
								   const int flags, qhandle_t *modelList, int blendTime, int currentTime);
	qboolean	(*G2API_SetAnimIndex)(CGhoul2Info *ghlInfo, const int index);
	int			(*G2API_GetAnimIndex)(CGhoul2Info *ghlInfo);
	void		(*G2API_SaveGhoul2Models)(CGhoul2Info_v &ghoul2);
	void		(*G2API_LoadGhoul2Models)(CGhoul2Info_v &ghoul2, char *buffer);
	void		(*G2API_LoadSaveCodeDestructGhoul2Info)(CGhoul2Info_v &ghoul2);
	char		*(*G2API_GetAnimFileNameIndex)(qhandle_t modelIndex);
	char		*(*G2API_GetAnimFileInternalNameIndex)(qhandle_t modelIndex);
	int			(*G2API_GetSurfaceRenderStatus)(CGhoul2Info *ghlInfo, const char *surfaceName);

	//rww - RAGDOLL_BEGIN
	void		(*G2API_SetRagDoll)(CGhoul2Info_v &ghoul2,void *parms);
	void		(*G2API_AnimateG2Models)(CGhoul2Info_v &ghoul2, int AcurrentTime,void *params);

	qboolean	(*G2API_RagPCJConstraint)(CGhoul2Info_v &ghoul2, const char *boneName, vec3_t min, vec3_t max);
	qboolean	(*G2API_RagPCJGradientSpeed)(CGhoul2Info_v &ghoul2, const char *boneName, const float speed);
	qboolean	(*G2API_RagEffectorGoal)(CGhoul2Info_v &ghoul2, const char *boneName, vec3_t pos);
	qboolean	(*G2API_GetRagBonePos)(CGhoul2Info_v &ghoul2, const char *boneName, vec3_t pos, vec3_t entAngles, vec3_t entPos, vec3_t entScale);
	qboolean	(*G2API_RagEffectorKick)(CGhoul2Info_v &ghoul2, const char *boneName, vec3_t velocity);
	qboolean	(*G2API_RagForceSolve)(CGhoul2Info_v &ghoul2, qboolean force);

	qboolean	(*G2API_SetBoneIKState)(CGhoul2Info_v &ghoul2, int time, const char *boneName, int ikState, void *params);
	qboolean	(*G2API_IKMove) (CGhoul2Info_v &ghoul2, int time, void *params);
	//rww - RAGDOLL_END

	void		(*G2API_AddSkinGore)(CGhoul2Info_v &ghoul2,void *gore);
	void		(*G2API_ClearSkinGore)( CGhoul2Info_v &ghoul2 );

	void		(*RMG_Init)(int terrainID);

	int			(*CM_RegisterTerrain)(const char *info);

	const char	*(*SetActiveSubBSP)(int index);


	int			(*RE_RegisterSkin)(const char *name);
	int			(*RE_GetAnimationCFG)(const char *psCFGFilename, char *psDest, int iDestSize);

	bool		(*WE_GetWindVector)(vec3_t windVector, vec3_t atpoint);
	bool		(*WE_GetWindGusting)(vec3_t atpoint);
	bool		(*WE_IsOutside)(vec3_t pos);
	float		(*WE_IsOutsideCausingPain)(vec3_t pos);
	float		(*WE_GetChanceOfSaberFizz)(void);
	bool		(*WE_IsShaking)(vec3_t pos);
	void		(*WE_AddWeatherZone)(vec3_t mins, vec3_t maxs);
	bool		(*WE_SetTempGlobalFogColor)(vec3_t color);


/*
Ghoul2 Insert End
*/


} game_import_t;

//
// functions exported by the game subsystem
//
typedef struct {
	int			apiversion;

	// init and shutdown will be called every single level
	// levelTime will be near zero, while globalTime will be a large number
	// that can be used to track spectator entry times across restarts
	void		(*Init)( const char *mapname, const char *spawntarget, int checkSum, const char *entstring, 
		int levelTime, int randomSeed, int globalTime, SavedGameJustLoaded_e eSavedGameJustLoaded, qboolean qbLoadTransition );
	void		(*Shutdown) (void);

	// ReadLevel is called after the default map information has been
	// loaded with SpawnEntities
	void		(*WriteLevel) (qboolean qbAutosave);
	void		(*ReadLevel)  (qboolean qbAutosave, qboolean qbLoadTransition);
	qboolean	(*GameAllowedToSaveHere)(void);

	// return NULL if the client is allowed to connect, otherwise return
	// a text string with the reason for denial
	char		*(*ClientConnect)( int clientNum, qboolean firstTime, SavedGameJustLoaded_e eSavedGameJustLoaded );

	void		(*ClientBegin)( int clientNum, usercmd_t *cmd, SavedGameJustLoaded_e eSavedGameJustLoaded);
	void		(*ClientUserinfoChanged)( int clientNum );
	void		(*ClientDisconnect)( int clientNum );
	void		(*ClientCommand)( int clientNum );
	void		(*ClientThink)( int clientNum, usercmd_t *cmd );

	void		(*RunFrame)( int levelTime );
	void		(*ConnectNavs)( const char *mapname, int checkSum );

	// ConsoleCommand will be called when a command has been issued
	// that is not recognized as a builtin function.
	// The game can issue gi.argc() / gi.argv() commands to get the command
	// and parameters.  Return qfalse if the game doesn't recognize it as a command.
	qboolean	(*ConsoleCommand)( void );

	//void		(*PrintEntClassname)( int clientNum );
	//int			(*ValidateAnimRange)( int startFrame, int endFrame, float animSpeed );

	void		(*GameSpawnRMGEntity)(char *s);
	//
	// global variables shared between game and server
	//

	// The gentities array is allocated in the game dll so it
	// can vary in size from one game to another.
	// 
	// The size will be fixed when ge->Init() is called
	// the server can't just use pointer arithmetic on gentities, because the
	// server's sizeof(struct gentity_s) doesn't equal gentitySize
	struct gentity_s	*gentities;
	int			gentitySize;
	int			num_entities;		// current number, <= MAX_GENTITIES
} game_export_t;

game_export_t *GetGameApi (game_import_t *import);

#endif//#ifndef __G_PUBLIC_H__