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/*
* WarGames - a WOPR emulator written in C
* Copyright (C) 2014 Franklin Wei
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Contact the author at contact@fwei.tk
*/
#include "strings.h"
#include "util.h"
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
int out_fd;
extern int pipes[FD_SETSIZE][2];
void allLower(char* str)
{
for(int i=0;str[i];++i)
{
str[i]=tolower(str[i]);
}
}
void print_string(const char* str) /* print string, slowly */
{
int i=0;
while(str[i])
{
write(out_fd, &str[i], 1);
fsync(out_fd);
usleep(SLEEP_TIME);
++i;
}
}
void remove_punct(char* buf)
{
for(int i=0;buf[i];++i)
{
for(int j=0;j<sizeof(punctuation_marks)/sizeof(char);++j)
{
if(buf[i]==punctuation_marks[j])
{
memmove(&buf[i], &buf[i+1], strlen(buf)-i);
}
}
}
}
void clear(void)
{
unsigned char clear_sequence[]={ 0x1B, 'c' };
write(out_fd, clear_sequence, sizeof(clear_sequence));
fsync(out_fd);
}
void refresh(void)
{
fsync(out_fd);
}
int getnstr(char* buf, int max)
{
echo_on();
memset(buf, 0, max);
int ret=read(pipes[out_fd][0], buf, max);
if(ret!=0)
{
/* prevent buffer underflow */
if(strlen(buf)-2>=0)
/* remove the newline */
buf[strlen(buf)-2]='\0';
}
if(ret<0)
return ERR;
return OK;
echo_off();
}
void echo_off(void)
{
unsigned char echo_off[]={0xff, 254, 1};
write(out_fd, echo_off, 3);
fsync(out_fd);
}
void echo_on(void)
{
unsigned char echo_on[]={0xff, 253, 1};
write(out_fd, echo_on, 3);
fsync(out_fd);
}
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