Nilorea Library
C utilities for networking, threading, graphics
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ex_fluid_config.c
1
13#include "ex_fluid_config.h"
14#include "nilorea/n_str.h"
15#include "nilorea/n_fluids.h"
16#include "nilorea/n_config_file.h"
17
18int load_app_state(char* state_filename, size_t* WIDTH, size_t* HEIGHT, bool* fullscreen, char** bgmusic, double* drawFPS, double* logicFPS, N_FLUID* fluid, int* threaded) {
19 __n_assert(state_filename, return FALSE);
20 __n_assert(fluid, return FALSE);
21
22 if (access(state_filename, F_OK) != 0) {
23 n_log(LOG_INFO, "no app state %s to load !", state_filename);
24 return FALSE;
25 }
26
27 /* N_STR *data = NULL ;
28 data = file_to_nstr( state_filename );
29 if( !data )
30 {
31 n_log( LOG_ERR , "Error reading file %s, defaults will be used" , state_filename );
32 return FALSE;
33 }
34
35 cJSON *monitor_json = cJSON_Parse( _nstr( data ) );
36 if (monitor_json == NULL)
37 {
38 const char *error_ptr = cJSON_GetErrorPtr();
39 n_log( LOG_ERR , "%s: Error before: %s, defaults will be used", state_filename , _str( error_ptr ) );
40 cJSON_Delete( monitor_json );
41 free_nstr( &data );
42 return FALSE ;
43 }
44
45 cJSON *value = NULL ;
46 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "width" ); if( cJSON_IsNumber( value ) ){ (*WIDTH) = value -> valueint ; } else { n_log( LOG_ERR , "width is not a number"); }
47 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "height" ); if( cJSON_IsNumber( value ) ){ (*HEIGHT) = value -> valueint ; } else { n_log( LOG_ERR , "height is not a number"); }
48 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "fullscreen" ); if( cJSON_IsNumber( value ) ){ (*fullscreen) = value -> valueint ; } else { n_log( LOG_ERR , "fullscreen is not a number"); }
49 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "bg-music" ); if( cJSON_IsString( value ) ){ (*bgmusic) = strdup( value -> valuestring ); } else { n_log( LOG_ERR , "bg-music is not a string"); }
50 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "drawFPS" ); if( cJSON_IsNumber( value ) ){ (*drawFPS) = value -> valuedouble ; } else { n_log( LOG_ERR , "drawFPS is not a number"); }
51 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "logicFPS" ); if( cJSON_IsNumber( value ) ){ (*logicFPS) = value -> valuedouble ; } else { n_log( LOG_ERR , "logicFPS is not a number"); }
52
53 cJSON_Delete(monitor_json);
54 free_nstr( &data );
55 */
56 int errors = 0;
57 CONFIG_FILE* config = load_config_file(state_filename, &errors);
58 if (!config) {
59 n_log(LOG_ERR, "Unable to load config file from %s", state_filename);
60 return FALSE;
61 }
62 if (errors != 0) {
63 n_log(LOG_ERR, "There were %d errors in %s. Check the logs !", errors, state_filename);
64 return FALSE;
65 }
66 /* default section, only one should be allocated. Let's test it ! */
67 int nb = get_nb_config_file_sections(config, "__DEFAULT__");
68 for (int it = 0; it < nb; it++) {
69 char* value = NULL;
70 value = get_config_section_value(config, "__DEFAULT__", it, "width", 0);
71 if (value) (*WIDTH) = atoi(value);
72 value = get_config_section_value(config, "__DEFAULT__", it, "height", 0);
73 if (value) (*HEIGHT) = atoi(value);
74 value = get_config_section_value(config, "__DEFAULT__", it, "fullscreen", 0);
75 if (value) (*fullscreen) = atoi(value);
76 value = get_config_section_value(config, "__DEFAULT__", it, "bg-music", 0);
77 if (value) (*bgmusic) = strdup(value);
78 value = get_config_section_value(config, "__DEFAULT__", it, "drawFPS", 0);
79 if (value) (*drawFPS) = strtold(value, NULL);
80 value = get_config_section_value(config, "__DEFAULT__", it, "logicFPS", 0);
81 if (value) (*logicFPS) = strtold(value, NULL);
82 value = get_config_section_value(config, "__DEFAULT__", it, "numIters", 0);
83 if (value) fluid->numIters = atoi(value);
84 value = get_config_section_value(config, "__DEFAULT__", it, "density", 0);
85 if (value) fluid->density = strtold(value, NULL);
86 value = get_config_section_value(config, "__DEFAULT__", it, "gravity", 0);
87 if (value) fluid->gravity = strtold(value, NULL);
88 value = get_config_section_value(config, "__DEFAULT__", it, "overRelaxation", 0);
89 if (value) fluid->overRelaxation = strtold(value, NULL);
90 value = get_config_section_value(config, "__DEFAULT__", it, "fluid_production_percentage", 0);
91 if (value) fluid->fluid_production_percentage = strtold(value, NULL);
92 value = get_config_section_value(config, "__DEFAULT__", it, "cScale", 0);
93 if (value) fluid->cScale = strtold(value, NULL);
94 value = get_config_section_value(config, "__DEFAULT__", it, "threadedProcessing", 0);
95 if (value) (*threaded) = atoi(value);
96 }
97
98 /*data = file_to_nstr( state_filename );
99 if( !data )
100 {
101 n_log( LOG_ERR , "Error reading file %s, defaults will be used" , state_filename );
102 return FALSE;
103 }
104
105 cJSON *monitor_json = cJSON_Parse( _nstr( data ) );
106 if (monitor_json == NULL)
107 {
108 const char *error_ptr = cJSON_GetErrorPtr();
109 n_log( LOG_ERR , "%s: Error before: %s, defaults will be used", state_filename , _str( error_ptr ) );
110 cJSON_Delete( monitor_json );
111 free_nstr( &data );
112 return FALSE ;
113 }
114
115 cJSON *value = NULL ;
116 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "numIters" ); if( cJSON_IsNumber( value ) ){ fluid -> numIters = value -> valueint ; } else { n_log( LOG_ERR , "numIters is not a number"); }
117 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "density" ); if( cJSON_IsNumber( value ) ){ fluid -> density = value -> valuedouble ; } else { n_log( LOG_ERR , "density is not a number"); }
118 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "gravity" ); if( cJSON_IsNumber( value ) ){ fluid -> gravity = value -> valuedouble ; } else { n_log( LOG_ERR , "gravity is not a number"); }
119 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "overRelaxation" ); if( cJSON_IsNumber( value ) ){ fluid -> overRelaxation = value -> valuedouble ; } else { n_log( LOG_ERR , "overRelaxation is not a number"); }
120 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "fluid_production_percentage" ); if( cJSON_IsNumber( value ) ){ fluid -> fluid_production_percentage = value -> valuedouble ; }else { n_log( LOG_ERR , "fluid_production_percentage is not a number"); }
121 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "cScale" ); if( cJSON_IsNumber( value ) ){ fluid -> cScale = value -> valuedouble ; } else { n_log( LOG_ERR , "cScale is not a number"); }
122 value = cJSON_GetObjectItemCaseSensitive( monitor_json, "threadedProcessing" ); if( cJSON_IsNumber( value ) ){ (*threaded) = value -> valueint ; } else { n_log( LOG_ERR , "threadedProcessing is not a number"); }
123
124 cJSON_Delete(monitor_json);
125 free_nstr( &data ); */
126
127 destroy_config_file(&config);
128
129 return TRUE;
130}
__n_assert
#define __n_assert(__ptr, __ret)
macro to assert things
Definition n_common.h:258
load_config_file
CONFIG_FILE * load_config_file(char *filename, int *errors)
load a config file
Definition n_config_file.c:45
destroy_config_file
int destroy_config_file(CONFIG_FILE **cfg_file)
Destroy a loaded config file.
Definition n_config_file.c:487
get_config_section_value
char * get_config_section_value(CONFIG_FILE *cfg_file, char *section_name, size_t section_position, char *entry, size_t entry_position)
Function to parse sections and get entries values.
Definition n_config_file.c:445
get_nb_config_file_sections
size_t get_nb_config_file_sections(CONFIG_FILE *cfg_file, char *section_name)
Get the number of config file with section_name.
Definition n_config_file.c:379
CONFIG_FILE
Structure of a config file.
Definition n_config_file.h:36
n_log
#define n_log(__LEVEL__,...)
Logging function wrapper to get line and func.
Definition n_log.h:69
LOG_ERR
#define LOG_ERR
error conditions
Definition n_log.h:56
LOG_INFO
#define LOG_INFO
informational
Definition n_log.h:62
N_FLUID::fluid_production_percentage
double fluid_production_percentage
size of the produced fluid
Definition n_fluids.h:86
N_FLUID::overRelaxation
double overRelaxation
over relaxation
Definition n_fluids.h:72
N_FLUID::numIters
size_t numIters
number of fluid processing iterations for each frame
Definition n_fluids.h:62
N_FLUID::density
double density
density of the fluid (not working ?)
Definition n_fluids.h:64
N_FLUID::cScale
double cScale
scale used to deduce cellX and cellY from screen/window width and height
Definition n_fluids.h:88
N_FLUID::gravity
double gravity
gravity on Y
Definition n_fluids.h:70
N_FLUID
structure of a fluid
Definition n_fluids.h:52
n_config_file.h
Config file reading and writing.
n_fluids.h
fluid management port from "How to write an Eulerian fluid simulator with 200 lines of code",...
n_str.h
N_STR and string function declaration.