C++ GetClearedMemory函數代碼示例

//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
void BotInitInfoEntities( void ) {
	char classname[MAX_EPAIRKEY];
	maplocation_t *ml;
	campspot_t *cs;
	int ent, numlocations, numcampspots;

	BotFreeInfoEntities();
	//
	numlocations = 0;
	numcampspots = 0;
	for ( ent = AAS_NextBSPEntity( 0 ); ent; ent = AAS_NextBSPEntity( ent ) )
	{
		if ( !AAS_ValueForBSPEpairKey( ent, "classname", classname, MAX_EPAIRKEY ) ) {
			continue;
		}

		//map locations
		if ( !strcmp( classname, "target_location" ) ) {
			ml = (maplocation_t *) GetClearedMemory( sizeof( maplocation_t ) );
			AAS_VectorForBSPEpairKey( ent, "origin", ml->origin );
			AAS_ValueForBSPEpairKey( ent, "message", ml->name, sizeof( ml->name ) );
			ml->areanum = AAS_PointAreaNum( ml->origin );
			ml->next = maplocations;
			maplocations = ml;
			numlocations++;
		} //end if
		  //camp spots
		else if ( !strcmp( classname, "info_camp" ) ) {
			cs = (campspot_t *) GetClearedMemory( sizeof( campspot_t ) );
			AAS_VectorForBSPEpairKey( ent, "origin", cs->origin );
			//cs->origin[2] += 16;
			AAS_ValueForBSPEpairKey( ent, "message", cs->name, sizeof( cs->name ) );
			AAS_FloatForBSPEpairKey( ent, "range", &cs->range );
			AAS_FloatForBSPEpairKey( ent, "weight", &cs->weight );
			AAS_FloatForBSPEpairKey( ent, "wait", &cs->wait );
			AAS_FloatForBSPEpairKey( ent, "random", &cs->random );
			cs->areanum = AAS_PointAreaNum( cs->origin );
			if ( !cs->areanum ) {
				botimport.Print( PRT_MESSAGE, "camp spot at %1.1f %1.1f %1.1f in solid\n", cs->origin[0], cs->origin[1], cs->origin[2] );
				FreeMemory( cs );
				continue;
			} //end if
			cs->next = campspots;
			campspots = cs;
			//AAS_DrawPermanentCross(cs->origin, 4, LINECOLOR_YELLOW);
			numcampspots++;
		} //end else if
	} //end for
	if ( bot_developer ) {
		botimport.Print( PRT_MESSAGE, "%d map locations\n", numlocations );
		botimport.Print( PRT_MESSAGE, "%d camp spots\n", numcampspots );
	} //end if
} //end of the function BotInitInfoEntities

//============================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//============================================================================
script_t *LoadScriptMemory(char *ptr, int length, char *name)
{
	void *buffer;
	script_t *script;

	buffer = GetClearedMemory(sizeof(script_t) + length + 1);
	script = (script_t *) buffer;
	Com_Memset(script, 0, sizeof(script_t));
	Q_strncpyz(script->filename, name, sizeof(script->filename));
	script->buffer = (char *) buffer + sizeof(script_t);
	script->buffer[length] = 0;
	script->length = length;
	//pointer in script buffer
	script->script_p = script->buffer;
	//pointer in script buffer before reading token
	script->lastscript_p = script->buffer;
	//pointer to end of script buffer
	script->end_p = &script->buffer[length];
	//set if there's a token available in script->token
	script->tokenavailable = 0;
	//
	script->line = 1;
	script->lastline = 1;
	//
	SetScriptPunctuations(script, NULL);
	//
	Com_Memcpy(script->buffer, ptr, length);
	//
	return script;
} //end of the function LoadScriptMemory

void AAS_FloodAreas(vector3 *origin) {
	int areanum, cluster, *done;

	done = (int *) GetClearedMemory(aasworld.numareas * sizeof(int));
	areanum = AAS_PointAreaNum(origin);
	cluster = AAS_AreaCluster(areanum);
	AAS_FloodAreas_r(areanum, cluster, done);
}

//===========================================================================
//
// Parameter:           -
// Returns:             -
// Changes Globals:     -
//===========================================================================
int BotInterpolateCharacters( int handle1, int handle2, int desiredskill )
{
    bot_character_t *ch1, *ch2, *out;
    int             i, handle;
    float           scale;

    ch1 = BotCharacterFromHandle( handle1 );
    ch2 = BotCharacterFromHandle( handle2 );

    if ( !ch1 || !ch2 )
    {
        return 0;
    }

    //find a free spot for a character
    for ( handle = 1; handle <= MAX_CLIENTS; handle++ )
    {
        if ( !botcharacters[ handle ] )
        {
            break;
        }
    } //end for

    if ( handle > MAX_CLIENTS )
    {
        return 0;
    }

    out = ( bot_character_t * ) GetClearedMemory( sizeof( bot_character_t ) + MAX_CHARACTERISTICS * sizeof( bot_characteristic_t ) );
    out->skill = desiredskill;
    strcpy( out->filename, ch1->filename );
    botcharacters[ handle ] = out;

    scale = ( float )( desiredskill - 1 ) / ( ch2->skill - ch1->skill );

    for ( i = 0; i < MAX_CHARACTERISTICS; i++ )
    {
        //
        if ( ch1->c[ i ].type == CT_FLOAT && ch2->c[ i ].type == CT_FLOAT )
        {
            out->c[ i ].type = CT_FLOAT;
            out->c[ i ].value._float = ch1->c[ i ].value._float + ( ch2->c[ i ].value._float - ch1->c[ i ].value._float ) * scale;
        } //end if
        else if ( ch1->c[ i ].type == CT_INTEGER )
        {
            out->c[ i ].type = CT_INTEGER;
            out->c[ i ].value.integer = ch1->c[ i ].value.integer;
        } //end else if
        else if ( ch1->c[ i ].type == CT_STRING )
        {
            out->c[ i ].type = CT_STRING;
            out->c[ i ].value.string = ( char * ) GetMemory( strlen( ch1->c[ i ].value.string ) + 1 );
            strcpy( out->c[ i ].value.string, ch1->c[ i ].value.string );
        } //end else if
    } //end for

    return handle;
} //end of the function BotInterpolateCharacters

//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
quakefile_t *FindQuakeFilesInZip( char *zipfile, char *filter ) {
	unzFile uf;
	int err;
	unz_global_info gi;
	char filename_inzip[MAX_PATH];
	unz_file_info file_info;
	int i;
	quakefile_t     *qfiles, *lastqf, *qf;

	uf = unzOpen( zipfile );
	err = unzGetGlobalInfo( uf, &gi );

	if ( err != UNZ_OK ) {
		return NULL;
	}

	unzGoToFirstFile( uf );

	qfiles = NULL;
	lastqf = NULL;
	for ( i = 0; i < gi.number_entry; i++ )
	{
		err = unzGetCurrentFileInfo( uf, &file_info, filename_inzip, sizeof( filename_inzip ), NULL,0,NULL,0 );
		if ( err != UNZ_OK ) {
			break;
		}

		ConvertPath( filename_inzip );
		if ( FileFilter( filter, filename_inzip, false ) ) {
			qf = GetClearedMemory( sizeof( quakefile_t ) );
			if ( !qf ) {
				Error( "out of memory" );
			}
			memset( qf, 0, sizeof( quakefile_t ) );
			strcpy( qf->pakfile, zipfile );
			strcpy( qf->filename, zipfile );
			strcpy( qf->origname, filename_inzip );
			qf->zipfile = true;
			//memcpy( &buildBuffer[i].zipfileinfo, (unz_s*)uf, sizeof(unz_s));
			memcpy( &qf->zipinfo, (unz_s*)uf, sizeof( unz_s ) );
			qf->offset = 0;
			qf->length = file_info.uncompressed_size;
			qf->type = QuakeFileType( filename_inzip );
			//add the file ot the list
			qf->next = NULL;
			if ( lastqf ) {
				lastqf->next = qf;
			} else { qfiles = qf;}
			lastqf = qf;
		} //end if
		unzGoToNextFile( uf );
	} //end for

	unzClose( uf );

	return qfiles;
} //end of the function FindQuakeFilesInZip

//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void AAS_CreateAreaSettings(void)
{
	int i, flags, side, numgrounded, numladderareas, numliquidareas;
	tmp_face_t *face;
	tmp_area_t *tmparea;

	numgrounded = 0;
	numladderareas = 0;
	numliquidareas = 0;
	Log_Write("AAS_CreateAreaSettings\r\n");
	i = 0;
	qprintf("%6d areas provided with settings", i);
	for (tmparea = tmpaasworld.areas; tmparea; tmparea = tmparea->l_next)
	{
		//if the area is invalid there no need to create settings for it
		if (tmparea->invalid) continue;

		tmparea->settings = (tmp_areasettings_t *) GetClearedMemory(sizeof(tmp_areasettings_t));
		tmparea->settings->contents = tmparea->contents;
		tmparea->settings->modelnum = tmparea->modelnum;
		flags = 0;
		for (face = tmparea->tmpfaces; face; face = face->next[side])
		{
			side = face->frontarea != tmparea;
			flags |= face->faceflags;
		} //end for
		tmparea->settings->areaflags = 0;
		if (flags & FACE_GROUND)
		{
			tmparea->settings->areaflags |= AREA_GROUNDED;
			numgrounded++;
		} //end if
		if (flags & FACE_LADDER)
		{
			tmparea->settings->areaflags |= AREA_LADDER;
			numladderareas++;
		} //end if
		if (tmparea->contents & (AREACONTENTS_WATER |
											AREACONTENTS_SLIME |
											AREACONTENTS_LAVA))
		{
			tmparea->settings->areaflags |= AREA_LIQUID;
			numliquidareas++;
		} //end if
		//presence type of the area
		tmparea->settings->presencetype = tmparea->presencetype;
		//
		qprintf("\r%6d", ++i);
	} //end for
	qprintf("\n");
#ifdef AASINFO
	Log_Print("%6d grounded areas\n", numgrounded);
	Log_Print("%6d ladder areas\n", numladderareas);
	Log_Print("%6d liquid areas\n", numliquidareas);
#endif //AASINFO
} //end of the function AAS_CreateAreaSettings

//========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//========================================================================
int BotAllocWeaponState( void ) {
	int i;

	for ( i = 1; i <= MAX_CLIENTS; i++ )
	{
		if ( !botweaponstates[i] ) {
			botweaponstates[i] = GetClearedMemory( sizeof( bot_weaponstate_t ) );
			return i;
		} //end if
	} //end for
	return 0;
} //end of the function BotAllocWeaponState

int *WeaponWeightIndex(weightconfig_t *wwc, weaponconfig_t *wc) {
	int *index, i;

	//initialize item weight index
	index = (int *) GetClearedMemory(sizeof(int) * wc->numweapons);

	for (i = 0; i < wc->numweapons; i++)
	{
		index[i] = FindFuzzyWeight(wwc, wc->weaponinfo[i].name);
	}
	return index;
}

/*
=======================================================================================================================================
AAS_OptimizeAlloc
=======================================================================================================================================
*/
void AAS_OptimizeAlloc(optimized_t *optimized) {

	optimized->vertexes = (aas_vertex_t *)GetClearedMemory(aasworld.numvertexes * sizeof(aas_vertex_t));
	optimized->numvertexes = 0;
	optimized->edges = (aas_edge_t *)GetClearedMemory(aasworld.numedges * sizeof(aas_edge_t));
	optimized->numedges = 1; // edge zero is a dummy
	optimized->edgeindex = (aas_edgeindex_t *)GetClearedMemory(aasworld.edgeindexsize * sizeof(aas_edgeindex_t));
	optimized->edgeindexsize = 0;
	optimized->faces = (aas_face_t *)GetClearedMemory(aasworld.numfaces * sizeof(aas_face_t));
	optimized->numfaces = 1; // face zero is a dummy
	optimized->faceindex = (aas_faceindex_t *)GetClearedMemory(aasworld.faceindexsize * sizeof(aas_faceindex_t));
	optimized->faceindexsize = 0;
	optimized->areas = (aas_area_t *)GetClearedMemory(aasworld.numareas * sizeof(aas_area_t));
	optimized->numareas = aasworld.numareas;
	optimized->vertexoptimizeindex = (int *)GetClearedMemory(aasworld.numvertexes * sizeof(int));
	optimized->edgeoptimizeindex = (int *)GetClearedMemory(aasworld.numedges * sizeof(int));
	optimized->faceoptimizeindex = (int *)GetClearedMemory(aasworld.numfaces * sizeof(int));
}

//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
tmp_face_t *AAS_AllocTmpFace(void)
{
	tmp_face_t *tmpface;

	tmpface = (tmp_face_t *) GetClearedMemory(sizeof(tmp_face_t));
	tmpface->num = tmpaasworld.facenum++;
	tmpface->l_prev = NULL;
	tmpface->l_next = tmpaasworld.faces;
	if (tmpaasworld.faces) tmpaasworld.faces->l_prev = tmpface;
	tmpaasworld.faces = tmpface;
	tmpaasworld.numfaces++;
	return tmpface;
} //end of the function AAS_AllocTmpFace

//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
tmp_node_t *AAS_AllocTmpNode( void ) {
	tmp_nodebuf_t *nodebuf;

	if ( !tmpaasworld.nodebuffer ||
		 tmpaasworld.nodebuffer->numnodes >= NODEBUF_SIZE ) {
		nodebuf = (tmp_nodebuf_t *) GetClearedMemory( sizeof( tmp_nodebuf_t ) );
		nodebuf->next = tmpaasworld.nodebuffer;
		nodebuf->numnodes = 0;
		tmpaasworld.nodebuffer = nodebuf;
	} //end if
	tmpaasworld.numnodes++;
	return &tmpaasworld.nodebuffer->nodes[tmpaasworld.nodebuffer->numnodes++];
} //end of the function AAS_AllocTmpNode

//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
int BotAllocGoalState( int client ) {
	int i;

	for ( i = 1; i <= MAX_CLIENTS; i++ )
	{
		if ( !botgoalstates[i] ) {
			botgoalstates[i] = GetClearedMemory( sizeof( bot_goalstate_t ) );
			botgoalstates[i]->client = client;
			return i;
		} //end if
	} //end for
	return 0;
} //end of the function BotAllocGoalState

//===========================================================================
// index to find the weight function of an iteminfo
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
int *ItemWeightIndex( weightconfig_t *iwc, itemconfig_t *ic ) {
	int *index, i;

	//initialize item weight index
	index = (int *) GetClearedMemory( sizeof( int ) * ic->numiteminfo );

	for ( i = 0; i < ic->numiteminfo; i++ )
	{
		index[i] = FindFuzzyWeight( iwc, ic->iteminfo[i].classname );
		if ( index[i] < 0 ) {
			Log_Write( "item info %d \"%s\" has no fuzzy weight\r\n", i, ic->iteminfo[i].classname );
		} //end if
	} //end for
	return index;
} //end of the function ItemWeightIndex

script_t *LoadScriptFile(const char *filename)
{
	fileHandle_t fp;
	char         pathname[MAX_QPATH];
	int          length;
	void         *buffer;
	script_t     *script;

	if (strlen(basefolder))
	{
		Com_sprintf(pathname, sizeof(pathname), "%s/%s", basefolder, filename);
	}
	else
	{
		Com_sprintf(pathname, sizeof(pathname), "%s", filename);
	}
	length = botimport.FS_FOpenFile(pathname, &fp, FS_READ);
	if (!fp)
	{
		return NULL;
	}

	buffer = GetClearedMemory(sizeof(script_t) + length + 1);
	script = (script_t *) buffer;
	memset(script, 0, sizeof(script_t));
	strcpy(script->filename, filename);
	script->buffer         = (char *) buffer + sizeof(script_t);
	script->buffer[length] = 0;
	script->length         = length;
	//pointer in script buffer
	script->script_p = script->buffer;
	//pointer in script buffer before reading token
	script->lastscript_p = script->buffer;
	//pointer to end of script buffer
	script->end_p = &script->buffer[length];
	//set if there's a token available in script->token
	script->tokenavailable = 0;

	script->line     = 1;
	script->lastline = 1;

	SetScriptPunctuations(script, NULL);

	botimport.FS_Read(script->buffer, length, fp);
	botimport.FS_FCloseFile(fp);

	return script;
} //end of the function LoadScriptFile

void Q3_CreatePlanarSurfacePlanes(void)
{
    int i;
    dsurface_t *surface;

    Log_Print("creating planar surface planes...\n");
    q3_surfaceplanes = (dplane_t *) GetClearedMemory(q3_numDrawSurfaces * sizeof(dplane_t));

    for (i = 0; i < q3_numDrawSurfaces; i++)
    {
        surface = &drawSurfaces[i];
        if (surface->surfaceType != MST_PLANAR) continue;
        Q3_SurfacePlane(surface, q3_surfaceplanes[i].normal, &q3_surfaceplanes[i].dist);
        //Log_Print("normal = %f %f %f, dist = %f\n", q3_surfaceplanes[i].normal[0],
        //											q3_surfaceplanes[i].normal[1],
        //											q3_surfaceplanes[i].normal[2], q3_surfaceplanes[i].dist);
    } //end for
} //end of the function Q3_CreatePlanarSurfacePlanes