Files
mazemaker/lib/options.c

56 lines
1.5 KiB
C

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "options.h"
mazeoptions_t* mazemaker_options_new() {
mazeoptions_t* result = malloc(sizeof(mazeoptions_t));
// set defaults
memset(result->wall_color, 0, 3);
memset(result->background_color, 0xff, 3);
return result;
}
void mazemaker_options_free(mazeoptions_t* options) {
free(options);
}
static int stringToColor(char const* color_desc, rgb_color_t dst) {
if (color_desc[0] != '#') return -1; // bad format
size_t l;
for (l = 1; color_desc[l] != '\0'; l++) if (!isxdigit(color_desc[l])) return -1; // bad format
if ((l != 4) && (l != 7)) return -1; // bad format
char x2[3] = { 0, 0, 0};
if (l == 4) {
x2[0] = x2[1] = color_desc[1];
sscanf(x2, "%hhx", &dst[0]);
x2[0] = x2[1] = color_desc[2];
sscanf(x2, "%hhx", &dst[1]);
x2[0] = x2[1] = color_desc[3];
sscanf(x2, "%hhx", &dst[2]);
} else {
strncpy(x2, color_desc + 1, 2);
sscanf(x2, "%hhx", &dst[0]);
strncpy(x2, color_desc + 3, 2);
sscanf(x2, "%hhx", &dst[1]);
strncpy(x2, color_desc + 5, 2);
sscanf(x2, "%hhx", &dst[2]);
}
return 0;
}
int mazemaker_options_set_wall_color(mazeoptions_t* options, char const* color_desc) {
return stringToColor(color_desc, options->wall_color);
}
int mazemaker_options_set_background_color(mazeoptions_t* options, char const* color_desc) {
return stringToColor(color_desc, options->background_color);
}