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#include "web_opts.h"
#include "comp.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <emscripten/emscripten.h>
#define PREFIX "dartboat_"
int delay_ms = 1000;
void set_delay(char *val)
{
delay_ms = atoi(val);
}
void set_stdev(char *val)
{
double stdev = strtod(val, NULL);
if (isfinite(stdev))
horizontal_stdev = vertical_stdev = stdev;
}
char *prefix_opt(char *opt)
{
char len = strlen(opt);
char *s = malloc(len + sizeof(PREFIX));
memcpy(s, PREFIX, sizeof(PREFIX) - 1);
memcpy(s + sizeof(PREFIX) - 1, opt, len + 1);
return s;
}
char *read_opt(char *opt)
{
char *s = prefix_opt(opt);
char *val = (char *)EM_ASM_INT({return readOpt($0)}, s);
free(s);
return val;
}
void read_delay()
{
char *val = read_opt("delay");
if (!val) return;
set_delay(val);
free(val);
}
void read_stdev()
{
char *val = read_opt("stdev");
if (!val) return;
set_stdev(val);
free(val);
}
void opts_init()
{
read_delay();
read_stdev();
char buf[64];
sprintf(buf, "%d", delay_ms);
EM_ASM({elemSetValue($0, $1)}, "#delay", buf);
int len = sprintf(buf, "%4.2f", horizontal_stdev);
char *dot = strchr(buf, '.');
if (dot) {
for (char *ptr = buf + len - 1; ptr >= dot; --ptr) {
if (*ptr != '0' && *ptr != '.')
break;
*ptr = 0;
}
}
EM_ASM({elemSetValue($0, $1)}, "#stdev", buf);
}
void store_opt(char *opt, char *val)
{
char *s = prefix_opt(opt);
EM_ASM({storeOpt($0, $1)}, s, val);
free(s);
}
EMSCRIPTEN_KEEPALIVE
void set_opt(char *opt, char *val)
{
if (!strcmp(opt, "delay"))
set_delay(val);
else if (!strcmp(opt, "stdev"))
set_stdev(val);
else
return;
store_opt(opt, val);
}
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