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server_data.c
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server_data.c
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///////////////////////////////////////////////////////////////////////////////////
// Headers
///////////////////////////////////////////////////////////////////////////////////
#include "server_data.h"
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>
///////////////////////////////////////////////////////////////////////////////////
// Functions
///////////////////////////////////////////////////////////////////////////////////
// -------------------------- INIT --------------------------------
struct backend_data_t* init_backend(){
// init backend
struct backend_data_t* backend = malloc(sizeof(struct backend_data_t));
memset(backend, 0, sizeof(struct backend_data_t));
backend->start_time = time(NULL);
for(int i = 0; i < NUMBER_OF_TEAMS; i++){
reset_telemetry(&(backend->evas[i].eva1), 0.0f);
reset_telemetry(&(backend->evas[i].eva2), 1000.0f);
}
// reset Json files
build_json_uia(&backend->uia);
build_json_dcu(&backend->dcu);
build_json_imu(&backend->imu);
build_json_rover(&backend->rover);
build_json_spec(&backend->spec);
build_json_comm(&backend->comm);
for(int i = 0; i < NUMBER_OF_TEAMS; i++){
build_json_eva(&backend->evas[i], i, false);
build_json_telemetry(&backend->evas[i], i, false);
}
return backend;
}
void cleanup_backend(struct backend_data_t* backend){
free(backend);
}
void reset_telemetry(struct telemetry_data_t* telemetry, float seed){
telemetry->batt_time = randomized_sine_value(seed, 0.2f, 0.1f, 060.0f, .02f) * BATT_TIME_CAP;
telemetry->oxy_pri_tank_fill = randomized_sine_value(seed, 0.2f, 0.1f, 160.0f, .02f) * OXY_TIME_CAP;
telemetry->oxy_sec_tank_fill = randomized_sine_value(seed, 0.2f, 0.1f, 260.0f, .02f) * OXY_TIME_CAP;
telemetry->oxy_pri_tank_pressure = 0.0f;
telemetry->oxy_sec_tank_pressure = 0.0f;
telemetry->heart_rate = RESTING_HEART_RATE;
telemetry->helmet_co2_pressure = 0.0f;
telemetry->fan_pri_rpm = 0.0f;
telemetry->fan_sec_rpm = 0.0f;
telemetry->scrubber_A_co2_captured = 0.0f;
telemetry->scrubber_B_co2_captured = 0.0f;
telemetry->suit_oxy_pressure = HAB_OXY_PRESSURE;
telemetry->suit_co2_pressure = HAB_CO2_PRESSURE;
telemetry->suit_other_pressure = HAB_OTHER_PRESSURE;
telemetry->depress_time = 0;
telemetry->temperature = 70.0f;
telemetry->coolant_tank = randomized_sine_value(seed, 0.2f, 0.1f, 360.0f, .02f) * 100.0f; // %
telemetry->coolant_liquid_pressure = 0.0f;
telemetry->coolant_gaseous_pressure = 0.0f;
// Communications
int com_channel;
}
// -------------------------- Meta Data --------------------------------
bool build_json_meta_data(struct backend_data_t* backend){
}
// -------------------------- UIA --------------------------------
bool build_json_uia(struct uia_data_t* uia){
const char format_buffer[512] =
"\n{"
"\n\t\"uia\": {"
"\n\t\t\"eva1_power\": %s,"
"\n\t\t\"eva1_oxy\": %s,"
"\n\t\t\"eva1_water_supply\": %s,"
"\n\t\t\"eva1_water_waste\": %s,"
"\n\t\t\"eva2_power\": %s,"
"\n\t\t\"eva2_oxy\": %s,"
"\n\t\t\"eva2_water_supply\": %s,"
"\n\t\t\"eva2_water_waste\": %s,"
"\n\t\t\"oxy_vent\": %s,"
"\n\t\t\"depress\": %s"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
uia->eva1_power ? "true" : "false",
uia->eva1_oxy ? "true" : "false",
uia->eva1_water_supply ? "true" : "false",
uia->eva1_water_waste ? "true" : "false",
uia->eva2_power ? "true" : "false",
uia->eva2_oxy ? "true" : "false",
uia->eva2_water_supply ? "true" : "false",
uia->eva2_water_waste ? "true" : "false",
uia->oxy_vent ? "true" : "false",
uia->depress ? "true" : "false"
);
// Write bytes to file
FILE* fd_uia = fopen("public/json_data/UIA.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_uia);
fclose(fd_uia);
return bytes_written == strlen(out_buffer);
}
bool update_uia(char* request_content, struct uia_data_t* uia){
bool* update_var = NULL;
// Check which variable needs to be updated
if(strncmp(request_content, "eva1_power=", strlen("eva1_power=")) == 0) {
request_content += strlen("eva1_power=");
update_var = &uia->eva1_power;
printf("UIA EVA1 Power: ");
} else if(strncmp(request_content, "eva1_oxy=", strlen("eva1_oxy=")) == 0) {
request_content += strlen("eva1_oxy=");
update_var = &uia->eva1_oxy;
printf("UIA EVA1 Oxygen: ");
} else if(strncmp(request_content, "eva1_water_supply=", strlen("eva1_water_supply=")) == 0) {
request_content += strlen("eva1_water_supply=");
update_var = &uia->eva1_water_supply;
printf("UIA EVA1 Water Supply: ");
} else if(strncmp(request_content, "eva1_water_waste=", strlen("eva1_water_waste=")) == 0) {
request_content += strlen("eva1_water_waste=");
update_var = &uia->eva1_water_waste;
printf("UIA EVA1 Water Waste: ");
} else if(strncmp(request_content, "eva2_power=", strlen("eva2_power=")) == 0) {
request_content += strlen("eva2_power=");
update_var = &uia->eva2_power;
printf("UIA EVA2 Power: ");
} else if(strncmp(request_content, "eva2_oxy=", strlen("eva2_oxy=")) == 0) {
request_content += strlen("eva2_oxy=");
update_var = &uia->eva2_oxy;
printf("UIA EVA2 Oxygen: ");
} else if(strncmp(request_content, "eva2_water_supply=", strlen("eva2_water_supply=")) == 0) {
request_content += strlen("eva2_water_supply=");
update_var = &uia->eva2_water_supply;
printf("UIA EVA2 Water Supply: ");
} else if(strncmp(request_content, "eva2_water_waste=", strlen("eva2_water_waste=")) == 0) {
request_content += strlen("eva2_water_waste=");
update_var = &uia->eva2_water_waste;
printf("UIA EVA2 Water Waste: ");
}
else if(strncmp(request_content, "depress=", strlen("depress=")) == 0) {
request_content += strlen("depress=");
update_var = &uia->depress;
printf("UIA Depress: ");
} else if(strncmp(request_content, "oxy_vent=", strlen("oxy_vent=")) == 0) {
request_content += strlen("oxy_vent=");
update_var = &uia->oxy_vent;
printf("UIA Oxygen Vent: ");
}
// Update var
if(update_var){
if(strncmp(request_content, "true", 4) == 0) {
*update_var = true;
printf("ON\n");
} else if(strncmp(request_content, "false", 5) == 0) {
*update_var = false;
printf("OFF\n");
} else {
return false;
}
build_json_uia(uia);
return true;
}
return false;
}
// -------------------------- DCU --------------------------------
bool build_json_dcu(struct dcu_data_t* dcu){
const char format_buffer[512] =
"\n{"
"\n\t\"dcu\": {"
"\n\t\t\"eva1\": {"
"\n\t\t\t\"batt\": %s,"
"\n\t\t\t\"oxy\": %s,"
"\n\t\t\t\"comm\": %s,"
"\n\t\t\t\"fan\": %s,"
"\n\t\t\t\"pump\": %s,"
"\n\t\t\t\"co2\": %s"
"\n\t\t},"
"\n\t\t\"eva2\": {"
"\n\t\t\t\"batt\": %s,"
"\n\t\t\t\"oxy\": %s,"
"\n\t\t\t\"comm\": %s,"
"\n\t\t\t\"fan\": %s,"
"\n\t\t\t\"pump\": %s,"
"\n\t\t\t\"co2\": %s"
"\n\t\t}"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
dcu->eva1_batt ? "true" : "false",
dcu->eva1_oxy ? "true" : "false",
dcu->eva1_comm ? "true" : "false",
dcu->eva1_fan ? "true" : "false",
dcu->eva1_pump ? "true" : "false",
dcu->eva1_co2 ? "true" : "false",
dcu->eva2_batt ? "true" : "false",
dcu->eva2_oxy ? "true" : "false",
dcu->eva2_comm ? "true" : "false",
dcu->eva2_fan ? "true" : "false",
dcu->eva2_pump ? "true" : "false",
dcu->eva2_co2 ? "true" : "false"
);
// Write bytes to file
FILE* fd_uia = fopen("public/json_data/DCU.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_uia);
fclose(fd_uia);
return bytes_written == strlen(out_buffer);
}
bool update_dcu(char* request_content, struct dcu_data_t* dcu){
bool* update_var = NULL;
// Check which variable needs to be updated
if(strncmp(request_content, "eva1_batt=", strlen("eva1_batt=")) == 0) {
request_content += strlen("eva1_batt=");
update_var = &dcu->eva1_batt;
printf("EVA1 DCU Battery: ");
} else if(strncmp(request_content, "eva1_oxy=", strlen("eva1_oxy=")) == 0) {
request_content += strlen("eva1_oxy=");
update_var = &dcu->eva1_oxy;
printf("EVA1 DCU Oxygen: ");
} else if(strncmp(request_content, "eva1_comm=", strlen("eva1_comm=")) == 0) {
request_content += strlen("eva1_comm=");
update_var = &dcu->eva1_comm;
printf("EVA1 DCU Comms: ");
} else if(strncmp(request_content, "eva1_fan=", strlen("eva1_fan=")) == 0) {
request_content += strlen("eva1_fan=");
update_var = &dcu->eva1_fan;
printf("EVA1 DCU Fan: ");
} else if(strncmp(request_content, "eva1_pump=", strlen("eva1_pump=")) == 0) {
request_content += strlen("eva1_pump=");
update_var = &dcu->eva1_pump;
printf("EVA1 DCU Pump: ");
} else if(strncmp(request_content, "eva1_co2=", strlen("eva1_co2=")) == 0) {
request_content += strlen("eva1_co2=");
update_var = &dcu->eva1_co2;
printf("EVA1 DCU CO2 SCRUBBER A: ");
} else if(strncmp(request_content, "eva2_batt=", strlen("eva2_batt=")) == 0) {
request_content += strlen("eva2_batt=");
update_var = &dcu->eva2_batt;
printf("EVA2 DCU Battery: ");
} else if(strncmp(request_content, "eva2_oxy=", strlen("eva2_oxy=")) == 0) {
request_content += strlen("eva2_oxy=");
update_var = &dcu->eva2_oxy;
printf("EVA2 DCU Oxygen: ");
} else if(strncmp(request_content, "eva2_comm=", strlen("eva2_comm=")) == 0) {
request_content += strlen("eva2_comm=");
update_var = &dcu->eva2_comm;
printf("EVA2 DCU Comms: ");
} else if(strncmp(request_content, "eva2_fan=", strlen("eva2_fan=")) == 0) {
request_content += strlen("eva2_fan=");
update_var = &dcu->eva2_fan;
printf("EVA2 DCU Fan: ");
} else if(strncmp(request_content, "eva2_pump=", strlen("eva2_pump=")) == 0) {
request_content += strlen("eva2_pump=");
update_var = &dcu->eva2_pump;
printf("EVA2 DCU Pump: ");
} else if(strncmp(request_content, "eva2_co2=", strlen("eva2_co2=")) == 0) {
request_content += strlen("eva2_co2=");
update_var = &dcu->eva2_co2;
printf("EVA2 DCU CO2 SCRUBBER A: ");
}
// Update var
if(update_var){
if(strncmp(request_content, "true", 4) == 0) {
*update_var = true;
printf("ON\n");
} else if(strncmp(request_content, "false", 5) == 0) {
*update_var = false;
printf("OFF\n");
} else {
return false;
}
// update json
build_json_dcu(dcu);
return true;
}
return false;
}
// -------------------------- IMU --------------------------------
bool build_json_imu(struct imu_data_t* imu){
const char format_buffer[512] =
"\n{"
"\n\t\"imu\": {"
"\n\t\t\"eva1\": {"
"\n\t\t\t\"posx\": %f,"
"\n\t\t\t\"posy\": %f,"
"\n\t\t\t\"heading\": %f"
"\n\t\t},"
"\n\t\t\"eva2\": {"
"\n\t\t\t\"posx\": %f,"
"\n\t\t\t\"posy\": %f,"
"\n\t\t\t\"heading\": %f"
"\n\t\t}"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
imu->eva1_posx,
imu->eva1_posy,
imu->eva1_heading,
imu->eva2_posx,
imu->eva2_posy,
imu->eva2_heading
);
// Write bytes to file
FILE* fd_imu = fopen("public/json_data/IMU.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_imu);
fclose(fd_imu);
return bytes_written == strlen(out_buffer);
}
bool update_imu(char* request_content, struct imu_data_t* imu){
float* update_var = NULL;
// Check which variable needs to be updated
if(strncmp(request_content, "eva1_posx=", strlen("eva1_posx=")) == 0) {
request_content += strlen("eva1_posx=");
update_var = &imu->eva1_posx;
printf("EVA1 IMU Pos x: ");
} else if(strncmp(request_content, "eva1_posy=", strlen("eva1_posy=")) == 0) {
request_content += strlen("eva1_posy=");
update_var = &imu->eva1_posy;
printf("EVA1 IMU Pos y: ");
} else if(strncmp(request_content, "eva1_heading=", strlen("eva1_heading=")) == 0) {
request_content += strlen("eva1_heading=");
update_var = &imu->eva1_heading;
printf("EVA1 IMU Heading: ");
} else if(strncmp(request_content, "eva2_posx=", strlen("eva2_posx=")) == 0) {
request_content += strlen("eva2_posx=");
update_var = &imu->eva2_posx;
printf("EVA2 IMU Pos x: ");
} else if(strncmp(request_content, "eva2_posy=", strlen("eva2_posy=")) == 0) {
request_content += strlen("eva2_posy=");
update_var = &imu->eva2_posy;
printf("EVA2 IMU Pos y: ");
} else if(strncmp(request_content, "eva2_heading=", strlen("eva2_heading=")) == 0) {
request_content += strlen("eva2_heading=");
update_var = &imu->eva2_heading;
printf("EVA2 IMU Heading: ");
}
if(update_var){
*update_var = atof(request_content);
printf("%f\n", *update_var);
// update json
build_json_imu(imu);
return true;
} else {
return false;
}
}
// -------------------------- ROVER --------------------------------
bool build_json_rover(struct rover_data_t* rover){
const char format_buffer[512] =
"\n{"
"\n\t\"rover\": {"
"\n\t\t\"posx\": %f,"
"\n\t\t\"posy\": %f,"
"\n\t\t\"qr_id\": %d"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
rover->pos_x,
rover->pos_y,
rover->prev_qr_scan
);
// Write bytes to file
FILE* fd_rover = fopen("public/json_data/ROVER.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_rover);
fclose(fd_rover);
return bytes_written == strlen(out_buffer);
}
bool update_rover(char* request_content, struct rover_data_t* rover){
if(strncmp(request_content, "qr=", strlen("qr=")) == 0) {
request_content += strlen("qr=");
rover->prev_qr_scan = atoi(request_content);
printf("ROVER QR: %d\n", rover->prev_qr_scan);
} else if(strncmp(request_content, "posx=", strlen("posx=")) == 0) {
request_content += strlen("posx=");
rover->pos_x = atof(request_content);
printf("ROVER Pos x: %f\n", rover->pos_x);
} else if(strncmp(request_content, "posy=", strlen("posy=")) == 0) {
request_content += strlen("posy=");
rover->pos_y = atof(request_content);
printf("ROVER Pos x: %f\n", rover->pos_y);
} else {
return false;
}
// if a value was updated
build_json_rover(rover);
return true;
}
// -------------------------- SPEC --------------------------------
bool build_json_spec(struct spec_data_t* spec){
// Read Rock Data Json File
int rocks_in_db = 15;
FILE* fd_rocks = fopen("public/json_data/rocks/RockData.json", "r");
fseek(fd_rocks, 0, SEEK_END);
long fsize = ftell(fd_rocks);
fseek(fd_rocks, 0, SEEK_SET);
char *rock_database = malloc(fsize + 1);
fread(rock_database, fsize, 1, fd_rocks);
fclose(fd_rocks);
rock_database[fsize] = 0;
// Format string for SPEC Data
const char format_buffer[512] =
"\n{"
"\n\t\"spec\": {"
"\n\t\t\"eva1\": \n\t\t%s,"
"\n\t\t\"eva2\": \n\t\t%s"
"\n\t}"
"\n}";
char* eva1_selected_rock_data_start = rock_database;
char* eva1_selected_rock_data_end = rock_database;
for(int i = 0; i <= spec->eva1_rock_id && i < rocks_in_db; i++){
eva1_selected_rock_data_start = strstr(eva1_selected_rock_data_end + 1, "{");
eva1_selected_rock_data_end = strstr(eva1_selected_rock_data_start, "}");
eva1_selected_rock_data_end = strstr(eva1_selected_rock_data_end + 1, "}");
}
char* eva2_selected_rock_data_start = rock_database;
char* eva2_selected_rock_data_end = rock_database;
for(int i = 0; i <= spec->eva2_rock_id && i < rocks_in_db; i++){
eva2_selected_rock_data_start = strstr(eva2_selected_rock_data_end + 1, "{");
eva2_selected_rock_data_end = strstr(eva2_selected_rock_data_start, "}");
eva2_selected_rock_data_end = strstr(eva2_selected_rock_data_end + 1, "}");
}
eva1_selected_rock_data_end[1] = 0;
eva2_selected_rock_data_end[1] = 0;
char* out_buffer = malloc(512 + 2*fsize);
sprintf(out_buffer, format_buffer,
eva1_selected_rock_data_start,
eva2_selected_rock_data_start
);
// Write bytes to file
FILE* fd_spec = fopen("public/json_data/SPEC.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_spec);
fclose(fd_spec);
free(rock_database);
free(out_buffer);
return bytes_written == strlen(out_buffer);
}
bool update_spec(char* request_content, struct spec_data_t* spec){
// Check which variable needs to be updated
if(strncmp(request_content, "eva1_rock_id=", strlen("eva1_rock_id=")) == 0) {
// Get Rock From EVA 1
request_content += strlen("eva1_rock_id=");
int rock_id = atoi(request_content);
spec->eva1_rock_id = rock_id;
printf("EVA1 Rock ID: %d\n", rock_id);
} else if(strncmp(request_content, "eva2_rock_id=", strlen("eva2_rock_id=")) == 0) {
// Get Rock From EVA 2
request_content += strlen("eva2_rock_id=");
int rock_id = atoi(request_content);
spec->eva2_rock_id = rock_id;
printf("EVA2 Rock ID: %d\n", rock_id);
} else {
return false;
}
build_json_spec(spec);
return true;
}
// -------------------------- COMM --------------------------------
bool build_json_comm(struct comm_data_t* comm){
// Format string for SPEC Data
const char format_buffer[512] =
"\n{"
"\n\t\"comm\": {"
"\n\t\t\"comm_tower\": %s"
"\n\t}"
"\n}";
char* out_buffer = malloc(512);
sprintf(out_buffer, format_buffer,
comm->comm_tower_online ? "true" : "false"
);
// Write bytes to file
FILE* fd_spec = fopen("public/json_data/COMM.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_spec);
fclose(fd_spec);
free(out_buffer);
return bytes_written == strlen(out_buffer);
}
bool update_comm(char* request_content, struct comm_data_t* comm){
// Check which variable needs to be updated
if(strncmp(request_content, "tower=", strlen("tower=")) == 0) {
request_content += strlen("tower=");
if(strncmp(request_content, "true", 4) == 0) {
comm->comm_tower_online = true;
printf("COMM Tower: Online\n");
} else if(strncmp(request_content, "false", 5) == 0) {
comm->comm_tower_online = false;
printf("COMM Tower: Offline\n");
} else {
return false;
}
} else {
return false;
}
build_json_comm(comm);
return true;
}
// -------------------------- ERROR --------------------------------
bool build_json_error(struct eva_failures_t* error){
const char format_buffer[512] =
"\n{"
"\n\t\"error\": {"
"\n\t\t\"fan_error\": %s,"
"\n\t\t\"oxy_error\": %s,"
// "\n\t\t\"batt_error\": %s,"
"\n\t\t\"pump_error\": %s"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
error->fan_error ? "true" : "false",
error->oxy_error ? "true" : "false",
// error->power_error ? "true" : "false",
error->pump_error ? "true" : "false"
);
// Write bytes to file
FILE* fd_eva = fopen("public/json_data/ERROR.json", "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_eva);
fclose(fd_eva);
return bytes_written == strlen(out_buffer);
}
bool update_error(char* request_content, struct eva_failures_t* error){
bool* update_var = NULL;
// Check which variable needs to be updated
if(strncmp(request_content, "fan=", strlen("fan=")) == 0) {
request_content += strlen("fan=");
update_var = &error->fan_error;
printf("Fan Error: ");
} else if(strncmp(request_content, "oxy=", strlen("oxy=")) == 0) {
request_content += strlen("oxy=");
update_var = &error->oxy_error;
printf("Oxygen Error: ");
} else if(strncmp(request_content, "power=", strlen("power=")) == 0) {
request_content += strlen("power=");
update_var = &error->power_error;
printf("Power Error: ");
} else if(strncmp(request_content, "pump=", strlen("pump=")) == 0) {
request_content += strlen("pump=");
update_var = &error->pump_error;
printf("Pump Error: ");
} else {
return false;
}
// Update var
if(update_var){
if(strncmp(request_content, "true", 4) == 0) {
*update_var = true;
printf("ON\n");
} else if(strncmp(request_content, "false", 5) == 0) {
*update_var = false;
printf("OFF\n");
} else {
return false;
}
// update json
build_json_error(error);
return true;
}
return false;
}
// -------------------------- EVA --------------------------------
bool build_json_eva(struct eva_data_t* eva, int team_index, bool completed){
const char format_buffer[512] =
"\n{"
"\n\t\"eva\": {"
"\n\t\t\"started\": %s,"
"\n\t\t\"paused\": %s,"
"\n\t\t\"completed\": %s,"
"\n\t\t\"total_time\": %d,"
"\n\t\t\"uia\": {"
"\n\t\t\t\"started\": %s,"
"\n\t\t\t\"completed\": %s,"
"\n\t\t\t\"time\": %d"
"\n\t\t},"
"\n\t\t\"dcu\": {"
"\n\t\t\t\"started\": %s,"
"\n\t\t\t\"completed\": %s,"
"\n\t\t\t\"time\": %d"
"\n\t\t},"
"\n\t\t\"rover\": {"
"\n\t\t\t\"started\": %s,"
"\n\t\t\t\"completed\": %s,"
"\n\t\t\t\"time\": %d"
"\n\t\t},"
"\n\t\t\"spec\": {"
"\n\t\t\t\"started\": %s,"
"\n\t\t\t\"completed\": %s,"
"\n\t\t\t\"time\": %d"
"\n\t\t}"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
eva->started ? "true" : "false",
eva->paused ? "true" : "false",
eva->completed ? "true" : "false",
eva->total_time,
eva->started_UIA ? "true" : "false",
eva->completed_UIA ? "true" : "false",
eva->time_at_UIA,
eva->started_DCU ? "true" : "false",
eva->completed_DCU ? "true" : "false",
eva->time_at_DCU,
eva->started_ROVER ? "true" : "false",
eva->completed_ROVER ? "true" : "false",
eva->time_at_ROVER,
eva->started_SPEC ? "true" : "false",
eva->completed_SPEC ? "true" : "false",
eva->time_at_SPEC
);
char filenameTemplate[48] = "public/json_data/teams/%d/%sEVA.json";
char out_filename[48];
sprintf(out_filename, filenameTemplate,
team_index,
completed ? "Completed_" : "");
// Write bytes to file
FILE* fd_eva = fopen(out_filename, "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_eva);
fclose(fd_eva);
return bytes_written == strlen(out_buffer);
}
bool update_eva(char* request_content, struct backend_data_t* backend){
// Check which variable needs to be updated
if(strncmp(request_content, "start_team=", strlen("start_team=")) == 0) {
// Begin EVA with a new team
request_content += strlen("start_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
memset(&backend->evas[team], 0, sizeof(struct eva_data_t));
reset_telemetry(&(backend->evas[team].eva1), 0.0f + team * 5000.0f);
reset_telemetry(&(backend->evas[team].eva2), 1000.0f + team * 5000.0f);
backend->evas[team].started = true;
printf("Team %d Started\n", team);
} else if(strncmp(request_content, "end_team=", strlen("end_team=")) == 0) {
// End EVA with current team
request_content += strlen("end_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].completed = true;
backend->evas[team].completed_UIA = true;
backend->evas[team].completed_DCU = true;
backend->evas[team].completed_ROVER = true;
backend->evas[team].completed_SPEC = true;
build_json_eva(&backend->evas[team], team, false);
build_json_eva(&backend->evas[team], team, true);
build_json_telemetry(&backend->evas[team], team, true);
printf("Team %d Completed\n", team);
} else if(strncmp(request_content, "pause_team=", strlen("pause_team=")) == 0) {
// Pause the current EVA for team #
request_content += strlen("pause_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].paused = true;
build_json_eva(&backend->evas[team], team, false);
printf("Team %d Paused\n", team);
} else if(strncmp(request_content, "unpause_team=", strlen("unpause_team=")) == 0) {
// Unpause the current EVA for team #
request_content += strlen("unpause_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].paused = false;
printf("Team %d Unpaused\n", team);
} else if(strncmp(request_content, "start_UIA_team=", strlen("start_UIA_team=")) == 0) {
// Start UIA Task for team #
request_content += strlen("start_UIA_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].started_UIA = true;
printf("Team %d UIA Started\n", team);
} else if(strncmp(request_content, "end_UIA_team=", strlen("end_UIA_team=")) == 0) {
// End UIA Task for team #
request_content += strlen("end_UIA_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].completed_UIA = true;
printf("Team %d UIA Completed\n", team);
} else if(strncmp(request_content, "start_DCU_team=", strlen("start_DCU_team=")) == 0) {
// Start UIA Task for team #
request_content += strlen("start_DCU_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].started_DCU = true;
printf("Team %d DCU Started\n", team);
} else if(strncmp(request_content, "end_DCU_team=", strlen("end_DCU_team=")) == 0) {
// End UIA Task for team #
request_content += strlen("end_DCU_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].completed_DCU = true;
printf("Team %d DCU Completed\n", team);
} else if(strncmp(request_content, "start_ROVER_team=", strlen("start_ROVER_team=")) == 0) {
// Start UIA Task for team #
request_content += strlen("start_ROVER_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].started_ROVER = true;
printf("Team %d ROVER Started\n", team);
} else if(strncmp(request_content, "end_ROVER_team=", strlen("end_ROVER_team=")) == 0) {
// End UIA Task for team #
request_content += strlen("end_ROVER_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].completed_ROVER = true;
printf("Team %d ROVER Completed\n", team);
} else if(strncmp(request_content, "start_SPEC_team=", strlen("start_SPEC_team=")) == 0) {
// Start UIA Task for team #
request_content += strlen("start_SPEC_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].started_SPEC = true;
printf("Team %d SPEC Started\n", team);
} else if(strncmp(request_content, "end_SPEC_team=", strlen("end_SPEC_team=")) == 0) {
// End UIA Task for team #
request_content += strlen("end_SPEC_team=");
int team = atoi(request_content);
if(team > NUMBER_OF_TEAMS) { return false; }
backend->evas[team].completed_SPEC = true;
printf("Team %d SPEC Completed\n", team);
} else {
return false;
}
return true;
}
// -------------------------- Telemetry --------------------------------
bool build_json_telemetry(struct eva_data_t* eva, int team_index, bool completed){
const char format_buffer[2048] =
"\n{"
"\n\t\"telemetry\": {"
"\n\t\t\"eva_time\": %u,"
"\n\t\t\"eva1\": {"
"\n\t\t\t\"batt_time_left\": %f,"
"\n\t\t\t\"oxy_pri_storage\": %f,"
"\n\t\t\t\"oxy_sec_storage\": %f,"
"\n\t\t\t\"oxy_pri_pressure\": %f,"
"\n\t\t\t\"oxy_sec_pressure\": %f,"
"\n\t\t\t\"oxy_time_left\": %d,"
"\n\t\t\t\"heart_rate\": %f,"
"\n\t\t\t\"oxy_consumption\": %f,"
"\n\t\t\t\"co2_production\": %f,"
"\n\t\t\t\"suit_pressure_oxy\": %f,"
"\n\t\t\t\"suit_pressure_co2\": %f,"
"\n\t\t\t\"suit_pressure_other\": %f,"
"\n\t\t\t\"suit_pressure_total\": %f,"
"\n\t\t\t\"fan_pri_rpm\": %f,"
"\n\t\t\t\"fan_sec_rpm\": %f,"
"\n\t\t\t\"helmet_pressure_co2\": %f,"
"\n\t\t\t\"scrubber_a_co2_storage\": %f,"
"\n\t\t\t\"scrubber_b_co2_storage\": %f,"
"\n\t\t\t\"temperature\": %f,"
"\n\t\t\t\"coolant_ml\": %f,"
"\n\t\t\t\"coolant_gas_pressure\": %f,"
"\n\t\t\t\"coolant_liquid_pressure\": %f"
"\n\t\t},"
"\n\t\t\"eva2\": {"
"\n\t\t\t\"batt_time_left\": %f,"
"\n\t\t\t\"oxy_pri_storage\": %f,"
"\n\t\t\t\"oxy_sec_storage\": %f,"
"\n\t\t\t\"oxy_pri_pressure\": %f,"
"\n\t\t\t\"oxy_sec_pressure\": %f,"
"\n\t\t\t\"oxy_time_left\": %d,"
"\n\t\t\t\"heart_rate\": %f,"
"\n\t\t\t\"oxy_consumption\": %f,"
"\n\t\t\t\"co2_production\": %f,"
"\n\t\t\t\"suit_pressure_oxy\": %f,"
"\n\t\t\t\"suit_pressure_cO2\": %f,"
"\n\t\t\t\"suit_pressure_other\": %f,"
"\n\t\t\t\"suit_pressure_total\": %f,"
"\n\t\t\t\"fan_pri_rpm\": %f,"
"\n\t\t\t\"fan_sec_rpm\": %f,"
"\n\t\t\t\"helmet_pressure_co2\": %f,"
"\n\t\t\t\"scrubber_a_co2_storage\": %f,"
"\n\t\t\t\"scrubber_b_co2_storage\": %f,"
"\n\t\t\t\"temperature\": %f,"
"\n\t\t\t\"coolant_ml\": %f,"
"\n\t\t\t\"coolant_gas_pressure\": %f,"
"\n\t\t\t\"coolant_liquid_pressure\": %f"
"\n\t\t}"
"\n\t}"
"\n}";
char out_buffer[512];
sprintf(out_buffer, format_buffer,
eva->total_time,
eva->eva1.batt_time,
eva->eva1.oxy_pri_tank_fill / OXY_TIME_CAP * 100.0f,
eva->eva1.oxy_sec_tank_fill / OXY_TIME_CAP * 100.0f,
eva->eva1.oxy_pri_tank_pressure,
eva->eva1.oxy_sec_tank_pressure,
(int) (eva->eva1.oxy_sec_tank_fill + eva->eva1.oxy_pri_tank_fill), // Total Oxy time left
eva->eva1.heart_rate,
eva->eva1.oxy_consumption,
eva->eva1.co2_production,
eva->eva1.suit_oxy_pressure,
eva->eva1.suit_co2_pressure,
eva->eva1.suit_other_pressure,
eva->eva1.suit_oxy_pressure + eva->eva1.suit_co2_pressure + eva->eva1.suit_other_pressure,
eva->eva1.fan_pri_rpm,
eva->eva1.fan_sec_rpm,
eva->eva1.helmet_co2_pressure,
eva->eva1.scrubber_A_co2_captured * 100.0f,
eva->eva1.scrubber_B_co2_captured * 100.0f,
eva->eva1.temperature,
eva->eva1.coolant_tank,
eva->eva1.coolant_gaseous_pressure,
eva->eva1.coolant_liquid_pressure,
eva->eva2.batt_time,
eva->eva2.oxy_pri_tank_fill / OXY_TIME_CAP * 100.0f,
eva->eva2.oxy_sec_tank_fill / OXY_TIME_CAP * 100.0f,
eva->eva2.oxy_pri_tank_pressure,
eva->eva2.oxy_sec_tank_pressure,
(int) (eva->eva2.oxy_sec_tank_fill + eva->eva2.oxy_pri_tank_fill), // Total Oxy time left
eva->eva2.heart_rate,
eva->eva2.oxy_consumption,
eva->eva2.co2_production,
eva->eva2.suit_oxy_pressure,
eva->eva2.suit_co2_pressure,
eva->eva2.suit_other_pressure,
eva->eva2.suit_oxy_pressure + eva->eva2.suit_co2_pressure + eva->eva2.suit_other_pressure,
eva->eva2.fan_pri_rpm,
eva->eva2.fan_sec_rpm,
eva->eva2.helmet_co2_pressure,
eva->eva2.scrubber_A_co2_captured * 100.0f,
eva->eva2.scrubber_B_co2_captured * 100.0f,
eva->eva2.temperature,
eva->eva2.coolant_tank,
eva->eva2.coolant_gaseous_pressure,
eva->eva2.coolant_liquid_pressure
);
char filenameTemplate[48] = "public/json_data/teams/%d/%sTELEMETRY.json";
char out_filename[48];
sprintf(out_filename, filenameTemplate,
team_index,
completed ? "Completed_" : "");
// Write bytes to file
FILE* fd_tel = fopen(out_filename, "w");
size_t bytes_written = fwrite(out_buffer, 1, strlen(out_buffer), fd_tel);
fclose(fd_tel);
return bytes_written == strlen(out_buffer);
}
float fourier_sin(float x){
// Constants
float a = 0.5f;
float f = 0.3333f;
float p = 13.7516;
float sum = 0.0f;
float a_prod = 1.0f;
float f_prod = 1.0f;
float p_prod = 1.0f;
for(int i = 0; i < 5; i++){
a_prod *= a;
f_prod *= f;
p_prod *= p;
sum += a_prod * sin((x + p_prod) / f_prod);
}
return sum;
}
float randomized_sine_value(float x, float avg, float amp, float phase, float freq){
return (float) avg + (amp * fourier_sin((x + phase) / (1000.0f * freq)));