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#include <stdio.h>
#include <string.h>
#define ESC "\033"
#define COLOR(N) ESC "[3" #N "m"
#define SAVE ESC "7" /* save current state */
#define BOLD ESC "[1m"
#define RESET ESC "[0m" /* reset attr to their defaults */
/* restore most recently saved state */
#define RESTORE ESC "8"
extern int cols, rows;
static int msg_x, msg_y;
static inline void goto_col(int x)
{
char buf[16];
snprintf(buf, sizeof buf, "\033[1;%dH", x);
printf("%s", buf);
}
static inline void goto_xy(int x, int y)
{
char buf[16];
snprintf(buf, sizeof buf, "\033[%d;%dH", y, x);
printf("%s", buf);
}
void erase(int l)
{
int i;
i = l>cols?0:cols-l;
printf(SAVE);
goto_xy(msg_x, msg_y);
while(i++ < cols)
printf(" ");
printf(RESTORE RESET);
}
void echo(char *s, int c)
{
int l = strlen(s);
int y, x;
y = 1;
x = cols - l;
// if(l > cols) l = cols;
// else l = cols - l;
if(c) {
y = rows/2;
x = cols/2 - l/2;
}
msg_x = x;
msg_y = y;
goto_xy(x, y);
printf(BOLD "%s", s);
printf(RESTORE RESET);
}
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