#include <stdio.h>
#include <conio.c>

void trykiMassiiv(int mas[8][8]);
int liiguta_nuppu(int mas[8][8], int alg_x, int alg_y, int lopp_x, int lopp_y);
char int_chariks (int input);
// vajalik sisestamisel, et arvuti saaks aru, et a ja A on tegelikult 0
// b ja B tegelikult 1 jne
int char_integeriks (int input);

int main(void){
  int m[8][8] ={
  {0,1,0,1,0,1,0,1},
  {1,0,1,0,1,0,1,0},
  {0,1,0,1,0,1,0,1},
  {3,0,3,0,3,0,3,0},
  {0,3,0,3,0,3,0,3},
  {2,0,2,0,2,0,2,0},
  {0,2,0,2,0,2,0,2},
  {2,0,2,0,2,0,2,0}
  };

  char taht1, taht2, enter, tyhik;
  int number1, number2;

  
  while (taht1 != 'q'){
  
  trykiMassiiv(m);

  scanf("%c%d%c%c%d%c", &taht1, &number1, &tyhik, &taht2, &number2, &enter);
  
   liiguta_nuppu(m, char_integeriks(taht1), number1-1, char_integeriks(taht2), number2-1);
    
  
  system("cls");    
  }
  return 0;
}

int char_integeriks (int ascii_kood){
  int integer;
  if (ascii_kood==97)
    integer=0;
  if (ascii_kood==98)
    integer=1;
  if (ascii_kood==99)
    integer=2;
  if (ascii_kood==100)
    integer=3;
  if (ascii_kood==101)
    integer=4;
  if (ascii_kood==102)
    integer=5;
  if (ascii_kood==103)
    integer=6;
  if (ascii_kood==104)
    integer=7;
    
  if (ascii_kood == 65)
    integer=0;
  if (ascii_kood == 66)
    integer=1;
  if (ascii_kood == 67)
    integer=2;
  if (ascii_kood == 68)
    integer=3;
  if (ascii_kood == 69)
    integer=4;
  if (ascii_kood == 70)
    integer=5;
  if (ascii_kood == 71)
    integer=6;
  if (ascii_kood == 72)
    integer=7;

  return integer;
}

char int_chariks (int input){
  char taht;

  if (input==0)
    taht = '°';
  if (input==1)
    taht = '›';
  if (input==2)
    taht = '˛';
  if (input==3)
    taht = ' ';
  return taht;
}

int liiguta_nuppu(int mas[8][8], int alg_x, int alg_y, int lopp_x, int lopp_y){
  int temp;
  if ( mas[alg_y][alg_x] == 0 || mas[alg_y][alg_x] == 3 )
    return 0;
  
  // votame nupu ara
  if ( alg_y - lopp_y == 2 && alg_x - lopp_x == 2)
    mas[alg_y - 1][alg_x-1] = 3;
  if ( alg_y - lopp_y == 2 && alg_x + 2 == lopp_x)
    mas[alg_y - 1][alg_x+1] = 3;
  if ( alg_y + 2 == lopp_y && alg_x - 2 == lopp_x)
    mas[alg_y + 1][alg_x-1] = 3;
  if ( alg_y + 2 == lopp_y && alg_x + 2 == lopp_x)
    mas[alg_y + 1][alg_x+1] = 3;

  
  
  
  temp = mas[lopp_y][lopp_x];
  mas[lopp_y][lopp_x] = mas[alg_y][alg_x];
  mas[alg_y][alg_x] = temp;
}

void trykiMassiiv(int mas[8][8]){
  int i,j;
  char k,q;
  
  
  printf("\n");
  printf("   abcdefgh\n");
  printf("   --------\n");
  
  for(i=0; i<8; i++){
    printf("%d ",i+1);
    printf("|");
    for(j=0; j<8; j++){
      printf ("%c", int_chariks(mas[i][j]) );
    }
    printf("|");
    printf(" %d",i+1);
    printf("\n");
  }
  printf("   --------\n");
  printf("   abcdefgh\n\n\n");

  printf(" › on valged nupud\n");
  printf(" ˛ on mustad nupud\n");
  printf("sisestage tegevus (tähtnumber tähtnumber) :");
//  scanf("%c", k);

}