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// KBHIT.CPP
#include "kbhit.h"
#if defined (__unix) || defined (__unix__)
#include <unistd.h> // read()
#elif defined (_WIN32)
#include <conio.h>
#endif
keyboard::keyboard()
{
#if defined (__unix) || defined (__unix__)
tcgetattr(0,&initial_settings);
new_settings = initial_settings;
new_settings.c_lflag &= ~ICANON;
new_settings.c_lflag &= ~ECHO;
new_settings.c_lflag &= ~ISIG;
new_settings.c_cc[VMIN] = 1;
new_settings.c_cc[VTIME] = 0;
tcsetattr(0, TCSANOW, &new_settings);
#endif
peek_character=-1;
}
keyboard::~keyboard()
{
#if defined (__unix) || defined (__unix__)
tcsetattr(0, TCSANOW, &initial_settings);
#endif
}
int keyboard::kb_hit()
{
#if defined (__unix) || defined (__unix__)
unsigned char ch;
int nread;
if (peek_character != -1) return 1;
new_settings.c_cc[VMIN]=0;
tcsetattr(0, TCSANOW, &new_settings);
nread = read(0,&ch,1);
new_settings.c_cc[VMIN]=1;
tcsetattr(0, TCSANOW, &new_settings);
if (nread == 1)
{
peek_character = ch;
return 1;
}
return 0;
#elif defined (_WIN32)
return kbhit();
#endif
}
int keyboard::kb_getch()
{
#if defined (__unix) || defined (__unix__)
char ch;
if (peek_character != -1) {
ch = peek_character;
peek_character = -1;
} else {
if (!read(0,&ch,1)) return 0;
}
return ch;
#elif defined (_WIN32)
if (kbhit())
return getch();
else
return 0;
#endif
}
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