xash3d-fwgs/engine/physint.h

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/*
physint.h - Server Physics Interface
Copyright (C) 2011 Uncle Mike
This program 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.
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.
*/
#ifndef PHYSINT_H
#define PHYSINT_H
#define SV_PHYSICS_INTERFACE_VERSION 6
#define STRUCT_FROM_LINK( l, t, m ) ((t *)((byte *)l - (int)&(((t *)0)->m)))
#define EDICT_FROM_AREA( l ) STRUCT_FROM_LINK( l, edict_t, area )
// values that can be returned with pfnServerState
#define SERVER_DEAD 0
#define SERVER_LOADING 1
#define SERVER_ACTIVE 2
// LUMP reading errors
#define LUMP_LOAD_OK 0
#define LUMP_LOAD_COULDNT_OPEN 1
#define LUMP_LOAD_BAD_HEADER 2
#define LUMP_LOAD_BAD_VERSION 3
#define LUMP_LOAD_NO_EXTRADATA 4
#define LUMP_LOAD_INVALID_NUM 5
#define LUMP_LOAD_NOT_EXIST 6
#define LUMP_LOAD_MEM_FAILED 7
#define LUMP_LOAD_CORRUPTED 8
// LUMP saving errors
#define LUMP_SAVE_OK 0
#define LUMP_SAVE_COULDNT_OPEN 1
#define LUMP_SAVE_BAD_HEADER 2
#define LUMP_SAVE_BAD_VERSION 3
#define LUMP_SAVE_NO_EXTRADATA 4
#define LUMP_SAVE_INVALID_NUM 5
#define LUMP_SAVE_ALREADY_EXIST 6
#define LUMP_SAVE_NO_DATA 7
#define LUMP_SAVE_CORRUPTED 8
typedef struct areanode_s
{
int axis; // -1 = leaf node
float dist;
struct areanode_s *children[2];
link_t trigger_edicts;
link_t solid_edicts;
link_t portal_edicts;
} areanode_t;
typedef struct server_physics_api_s
{
// unlink edict from old position and link onto new
void ( *pfnLinkEdict) ( edict_t *ent, qboolean touch_triggers );
double ( *pfnGetServerTime )( void ); // unclamped
double ( *pfnGetFrameTime )( void ); // unclamped
void* ( *pfnGetModel )( int modelindex );
areanode_t* ( *pfnGetHeadnode )( void ); // AABB tree for all physic entities
int ( *pfnServerState )( void );
void ( *pfnHost_Error )( const char *error, ... ); // cause Host Error
// ONLY ADD NEW FUNCTIONS TO THE END OF THIS STRUCT. INTERFACE VERSION IS FROZEN AT 6
struct triangleapi_s *pTriAPI; // draw coliisions etc. Only for local system
// draw debug messages (must be called from DrawOrthoTriangles). Only for local system
int ( *pfnDrawConsoleString )( int x, int y, char *string );
void ( *pfnDrawSetTextColor )( float r, float g, float b );
void ( *pfnDrawConsoleStringLen )( const char *string, int *length, int *height );
void ( *Con_NPrintf )( int pos, char *fmt, ... );
void ( *Con_NXPrintf )( struct con_nprint_s *info, char *fmt, ... );
const char *( *pfnGetLightStyle )( int style ); // read custom appreance for selected lightstyle
void ( *pfnUpdateFogSettings )( unsigned int packed_fog );
char **(*pfnGetFilesList)( const char *pattern, int *numFiles, int gamedironly );
struct msurface_s *(*pfnTraceSurface)( edict_t *pTextureEntity, const float *v1, const float *v2 );
const byte *(*pfnGetTextureData)( unsigned int texnum );
// static allocations
void *(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline );
void (*pfnMemFree)( void *mem, const char *filename, const int fileline );
// trace & contents
int (*pfnMaskPointContents)( const float *pos, int groupmask );
trace_t (*pfnTrace)( const float *p0, float *mins, float *maxs, const float *p1, int type, edict_t *e );
trace_t (*pfnTraceNoEnts)( const float *p0, float *mins, float *maxs, const float *p1, int type, edict_t *e );
int (*pfnBoxInPVS)( const float *org, const float *boxmins, const float *boxmaxs );
// message handler (missed function to write raw bytes)
void (*pfnWriteBytes)( byte *bytes, int count );
// BSP lump management
int (*pfnCheckLump)( const char *filename, const int lump, int *lumpsize );
int (*pfnReadLump)( const char *filename, const int lump, void **lumpdata, int *lumpsize );
int (*pfnSaveLump)( const char *filename, const int lump, void *lumpdata, int lumpsize );
// FS tools
int (*pfnSaveFile)( const char *filename, const void *data, long len );
const byte *(*pfnLoadImagePixels)( const char *filename, int *width, int *height );
const char* (*pfnGetModelName)( int modelindex );
} server_physics_api_t;
// physic callbacks
typedef struct physics_interface_s
{
int version;
// passed through pfnCreate (0 is attempt to create, -1 is reject)
int ( *SV_CreateEntity )( edict_t *pent, const char *szName );
// run custom physics for each entity (return 0 to use built-in engine physic)
int ( *SV_PhysicsEntity )( edict_t *pEntity );
// spawn entities with internal mod function e.g. for re-arrange spawn order (0 - use engine parser, 1 - use mod parser)
int ( *SV_LoadEntities )( const char *mapname, char *entities );
// update conveyor belt for clients
void ( *SV_UpdatePlayerBaseVelocity )( edict_t *ent );
// The game .dll should return 1 if save game should be allowed
int ( *SV_AllowSaveGame )( void );
// ONLY ADD NEW FUNCTIONS TO THE END OF THIS STRUCT. INTERFACE VERSION IS FROZEN AT 6
// override trigger area checking and touching
int ( *SV_TriggerTouch )( edict_t *pent, edict_t *trigger );
// some engine features can be enabled only through this function
unsigned int ( *SV_CheckFeatures )( void );
// used for draw debug collisions for custom physic engine etc
void ( *DrawDebugTriangles )( void );
// used for draw debug overlay (textured)
void ( *DrawNormalTriangles )( void );
// used for draw debug messages (2d mode)
void ( *DrawOrthoTriangles )( void );
// tracing entities with SOLID_CUSTOM mode on a server (not used by pmove code)
void ( *ClipMoveToEntity)( edict_t *ent, const float *start, float *mins, float *maxs, const float *end, trace_t *trace );
// tracing entities with SOLID_CUSTOM mode on a server (only used by pmove code)
void ( *ClipPMoveToEntity)( struct physent_s *pe, const float *start, float *mins, float *maxs, const float *end, struct pmtrace_s *tr );
// called at end the frame of SV_Physics call
void ( *SV_EndFrame )( void );
// obsolete
void (*pfnReserved)( void );
// called through save\restore process
void (*pfnCreateEntitiesInRestoreList)( SAVERESTOREDATA *pSaveData, int levelMask, qboolean create_world );
// allocate custom string (e.g. using user implementation of stringtable, not engine strings)
string_t (*pfnAllocString)( const char *szValue );
// make custom string (e.g. using user implementation of stringtable, not engine strings)
string_t (*pfnMakeString)( const char *szValue );
// read custom string (e.g. using user implementation of stringtable, not engine strings)
const char* (*pfnGetString)( string_t iString );
// helper for restore custom decals that have custom message (e.g. Paranoia)
int (*pfnRestoreDecal)( struct decallist_s *entry, edict_t *pEdict, qboolean adjacent );
// handle custom trigger touching for player
void (*PM_PlayerTouch)( struct playermove_s *ppmove, edict_t *client );
// alloc or destroy model custom data (called only for dedicated servers, otherwise using an client version)
void (*Mod_ProcessUserData)( struct model_s *mod, qboolean create, const byte *buffer );
// select BSP-hull for trace with specified mins\maxs
void *(*SV_HullForBsp)( edict_t *ent, const float *mins, const float *maxs, float *offset );
// handle player custom think function
int (*SV_PlayerThink)( edict_t *ent, float frametime, double time );
} physics_interface_t;
#endif//PHYSINT_H