#include "private.h"


cairo_t *heliCairo;


int randomNumber(int min, int max)
	{ return max <= min ? min : rand()%(max - min + 1) + min; }

double randomFloat()
	{ return (double)rand()/(double)RAND_MAX; }


char* heliStringCopy(const char *x) {
	int len = strlen(x) + 1;
	char *cp = malloc(len + 1);
	memcpy(cp, x, len);
	return cp;
}

char* heliStringConcat3(const char *a, const char *b, const char *c) {
	int la = strlen(a);
	int lb = strlen(b);
	int lc = strlen(c);
	char *s = malloc(la + lb + lc + 1);
	memcpy(s, a, la);
	memcpy(s + la, b, lb);
	memcpy(s + la + lb, c, lc);
	s[la + lb + lc] = 0;
	return s;
}

int heliStringEndsWithLowcase(const char *s, const char *tail) {
	int ls = strlen(s);
	int lt = strlen(tail);
	if (lt > ls) return FALSE;
	for(int i = 0; i < lt; ++i)
		if (tolower(s[ls - i]) != tolower(tail[lt - i]))
			return FALSE;
	return TRUE;
}

void heliLowercase(char *x)
	{ while(*x) *x = tolower(*x); }

void heliParseColor(const char *x, double *color) {
	#warning "TODO: heliParseColor: not implemented yet"
}