#include <stdio.h>
#include "initcells.h"

#define PUZZLE 1

void getNumber(int *seed);
void generate(int array[][MAXCELLS]);

int main()
{
   int seed;
   int array[PUZZLE][MAXCELLS];

   getNumber(&seed);
   initCells(array, seed);
   generate(array);

   return 0;
}

void getNumber(int *seed)
{
   /* read in number and do error checking */

   char temp;
   int check;

   do
   {
      printf("Please enter non-zero seed value for the automata : ");
      check = scanf("%d", seed);
      if (check != 1)
      {
         /* clear keyboard buffer */
         do scanf("%c", &temp);
         while (temp != '\n');
      }
   } while (check != 1 || *seed == 0);
}

void generate(int array[][MAXCELLS])
{
   /* all of this code will check the logical expression,
      check the row and collumn
      and print the outcome
   */

   int left, top, right, current, nextgen, nextstate, row, col;

   for (row = 0; row < MAXGEN; row++)
   {
      printf("Gen  %2d ", row + 1);

      for ( col = 0; col < MAXCELLS; col++)
      {
         if ((row + 1) %2 == 0)
         {
            nextgen = 0;
            current = 1;
         }
         else
         {
            nextgen = 1;
            current = 0;
         }

         /* the code below is to read the MAXCELLS
            in addition, it check the left, top and right
            collumn and row */

         if (col == 0)
         {
            left = array[current][MAXCELLS -1];
         }
         else
         {
            left = array[current][col -1];
         }

         top = array[current][col];

         if (col == (MAXCELLS -1))
         {
            right = array[current][0];
         }
         else
         {
            right = array[current][col +1];
         }

         /* this code is to print the result */

         if (array[current][col] == 0)
         {
            printf(" ");
         }
         else
         {
            if (array[current][col] == 1)
            {
               printf(".");
            }
            else
            {
               if (array[current][col] == 2)
               {
                  printf("+");
               }
               else
               {
                  printf("#");
               }
            }
         }

         /* this code is to determine the nextstate */

         if (top == 3)
            nextstate = 0;
         else
            nextstate = top +1;

         /* apply the rule */

         if (left == nextstate || right == nextstate)
         {
            array [nextgen][col] = nextstate;
         }
         else
         {
            if ( left == top && right == top)
            {
               array [nextgen][col] = nextstate;
            }
            else
            {
               array [nextgen][col] = top;
            }
         }
      }
      printf("\n");
   }
}