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#include "main.h"
int main(int argc, char **argv){
init();
erase();
refresh();
move(0, 0);
//Read Sudoku from given file
FILE* input_file = fopen(argv[1], "r");
char* sudoku_str = malloc((SUDOKU_LEN) * sizeof(char));
fscanf(input_file, "%s", sudoku_str);
fclose(input_file);
//Abort if Sudoku is wrong length
if(strlen(sudoku_str) != SUDOKU_LEN)
finish_with_msg("Wrong length in Sudoku file\n");
//Read Sudoku to screen
read_sudoku(sudoku_str);
refresh();
while(true)
sleep(1);
finish(0);
}
//ncurses init logic
void init(){
//on interrupt (Ctrl+c) exit
signal(SIGINT, finish);
signal(SIGSEGV, finish);
//init
initscr();
//return key doesn't become newline
nonl();
//disable curosr
curs_set(0);
//allows Ctrl+c to quit the program
cbreak();
//don't echo the the getch() chars onto the screen
noecho();
//getch() doesn't wait for input and just returns ERR if no key is pressed
nodelay(stdscr, true);
//enable keypad (for arrow keys)
keypad(stdscr, true);
//color support
start_color();
init_pair(1, COLOR_WHITE, COLOR_BLACK);
//grey color
init_color(COLOR_BLUE, 200, 200, 200);
init_pair(2, COLOR_BLUE, COLOR_BLACK);
}
void finish(int sig){
endwin();
if(sig == SIGSEGV)
printf("Segfault\n");
exit(0);
}
void finish_with_msg(char* msg){
endwin();
printf("%s", msg);
exit(0);
}
//Read Sudoku to screen
void read_sudoku(char* sudoku){
//Offset for horizontal seperators
int yoff = 0;
for(int y = 0; y < LINE_LEN; y++){
//On every third vertical line, add seperator
if(y % 3 == 0){
//Add 4 for horizontal seperators
for(int i = 0; i < LINE_LEN + 4; i++){
move(y + yoff, i);
addch('-');
}
//Increment offset
yoff++;
}
//Offset for vertical seperators
int xoff = 0;
for(int x = 0; x < LINE_LEN; x++){
//On every third character, add a pipe
if(x % 3 == 0){
//Move and increment
move(y + yoff, x + xoff++);
addch('|');
}
move(y + yoff, x + xoff);
//Get digit from input string
char current_digit = sudoku[y * LINE_LEN + x];
//Draw zeros empty
if(current_digit == '0')
continue;
else
addch(current_digit);
}
//Add vertical seperator add the end
move(y + yoff, LINE_LEN + 3);
addch('|');
}
//Add horizontal seperator add the end
for(int i = 0; i < LINE_LEN + 4; i++){
move(LINE_LEN + yoff, i);
addch('-');
}
}
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