Thread: Game of life program

  1. 05-04-2011 #31
    new_ink2001
    new_ink2001 is offline
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    Oklahoma
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    Absolutely Mike, check it out:

    The first branch of the original conditional executes when num_neighbors is:

    Code:
                        =-------O
<-------------|-----|---|---|------>
              0     2       4
    That's the collection of numbers for which the first condition is true, i.e. [2, 4).... Indeed the integers 2 and 3. The second branch...

    Code:
                 <------O       =------>
<-------------|-----|---|---|------>
              0     2       4
    Yes, that's the complement with respect to the number line, i.e. (-inf, 2) union [4, inf). Which is identical to your suggestion:

    Code:
                        =   =   
<-------------|-----|---|---|------>
              0     2   3   4
    For the first branch, that is [2, 3], and the else block executes for anything else...

    Code:
                 <------O   O------>
<-------------|-----|---|---|------>
              0     2       4
    That is the set of numbers (-inf, 2) union (3, inf).

    Thanks for the prompt. I apologize that I haven't been more involved, I'm kind of in the middle of several activities at the moment including sharpening up my PERL for a couple contracts that I would like to land....

    Best Regards,
    Kept the text books....
    Went interdisciplinary after college....
     Still looking for a real job since 2005....

    During the interim, I may be reached at ELance, vWorker, FreeLancer, oDesk and WyzAnt.
  2. 05-05-2011 #32
    paranoidgnu
    paranoidgnu is offline
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    Apr 2011
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    48
    Thanks for your help
    I think, we solved problem.
    Code:
    #include <stdio.h> 
#include <stdlib.h>
#include <time.h>
#define ROWS 25
#define COLS 25
void game_of_life(char o_arr[][COLS], char n_array[][COLS]);
int checkx(char arr[][COLS],int row, int col);
int main(void)
{
	char array[ROWS][COLS],n_array[ROWS][COLS];
	srand(time(NULL));
	int i, j, r_integer[ROWS][COLS], num_gen;
	for(i=0;i<ROWS;i++){
		for(j=0;j<COLS;j++){
			r_integer[j][i] = (rand() % 100) > 50 ? 1 : 0;
		}
	}
	for(i=0;i<ROWS;i++){
		for(j=0;j<COLS;j++){
			  if(r_integer[j][i] == 0)
                  array[j][i]=' ';
              else
				  array[j][i]='X';            
			}
		}			
	for(i=0;i<ROWS;i++){
		printf("\n");
		for(j=0;j<COLS;j++){
			printf("%c", array[j][i]);
		}
	}
	for(num_gen=0;num_gen<4;num_gen++){
		printf("\nGeneration: %d\n", num_gen+1);
		game_of_life(array,n_array);
		for(i=0;i<ROWS;i++){
			for(j=0;j<COLS;j++){
				array[j][i]=n_array[j][i];
			}
		}
		for(i=0;i<ROWS;i++){
			printf("\n");
			for(j=0;j<COLS;j++){
				printf("%c", n_array[j][i]);
			}
		}
	}
	return(0);
}
void game_of_life(char o_arr[][COLS], char n_array[][COLS])
{
	int i, j, num_neighbors=0;
	for(i=0;i<COLS;i++){     
		for(j=0;j<ROWS;j++){
			if ((o_arr[j][i])=='X'){
				num_neighbors = checkx(o_arr, j, i);
				if( num_neighbors == 2 || num_neighbors == 3)
					n_array[j][i]='X';
				else 
					n_array[j][i]=' ';
            }
			else {
				num_neighbors=checkx(o_arr, j, i);
				if (num_neighbors == 3)  
					n_array[j][i]='X';                
				else 
					n_array[j][i]=' ';
              }
          }
      }
}
		
int checkx(char arr[][COLS],int row, int col)
{
      int num_neighbors = 0;
      if ((row > 0 && col > 0 && arr[row-1][col-1])=='X')
          num_neighbors++;
      if ((row > 0 && arr[row-1][col])=='X')
          num_neighbors++;
      if (row > 0 && arr[row-1][col+1] == 'X')
		  num_neighbors++;
      if ((col > 0 && arr[row][col-1])=='X')
          num_neighbors++;
      if ((arr[row][col+1])=='X')
          num_neighbors++;
      if ((col > 0 && arr[row+1][col-1])=='X')
          num_neighbors++;
      if ((arr[row+1][col])=='X')
          num_neighbors++;
      if ((arr[row+1][col+1])=='X')
          num_neighbors++;
      return(num_neighbors);
}
    output:
    Code:
    X XXX  X XXX  X    XXX X 
XXX   X   X  XX    XX XXX
X XXX XXX  X XX  XX X XXX
 X     XX X    X  XX    X
X      X  X   X   X  XX  
X X  XX XXXXX   X XXX XX 
 X XXX  XXX XX X  X   X  
 XXX  XXXX  X  XXX   X XX
 X  X X   X XXX XXXXX  XX
X  X X   XXXX XX   X X  X
X   X X XXX        X     
  XXXX X X X X X         
X  X X XXX  X XX  XX   X 
XX XX XX XX X X XXXXXXX  
  XXX  X     XX X   XX XX
 XXX  XXX X XX    X    X 
X  XX   XXX   X XX XXX X 
 XX   XX   XXXXX XXX X  X
 X X XX X   XXXX X X  XXX
X  XXX       XX XXX X  X 
 X  XXXXX XXXX  X X XXX  
 X X      X XXXX  XX  XXX
X      X XX   XX XXX XX  
X XXX         XXXX X X XX
 X XX  X X      XXX X X X
Generation: 1

X XX     XX  XX    XXXXX 
XXXX XXX    XXX   XX XX X
  X   XXX        XXX   X 
       X          X      
      XX  XX     XXXXXX  
  X  X  X XXX     XX  X  
 X XX    X  X  XXX    X  
 XX  XXX   XXXXXXXXXX  XX
    X    XX XXXXX XXX  X 
     X  X XX             
    XXX XXX              
  XXX XX X   XXX         
X XXXXXXXX X XXX   XXXX  
  X X X      XXXXX XXXX  
 X X  XX    XX         X 
 XXX   XX X      XX X X  
  XX   XX   X XXXX XX    
 XX  XXX   XX  XXXX     X
   X X      XXXXXXXX  XX 
   XXXXX   X X  XX XXXX  
    X     XXXXXX  XXXXXX 
         XX  XXX X X XXX 
   X          XX XX XXX  
  XXX          XXXXX X X 
 X X   XXX       XX XX   
Generation: 2

X  X  X     X X   XXXXXX 
 XX  XXX         X X     
      XX         XX      
      XX         XXXXX   
      X  XXX     XXXXX   
  X X     XX    XXX      
 XXX  X    XXX   XXX     
     X    XXX   XXX X  X 
         XXXX            
    XX XX X              
    XXXXXX    X          
 XX X  X X  XX X    XX   
  XXXXXX     X XX XX  X  
  X   X     XXX          
 X X  XX                 
 XXX   XX      X XXXX    
 XX    X   XX XX XXX     
    XXX    XXX    X    X 
   X XX     XXXXXXXXX X  
   XXX    XX XXXX X   X  
         XXXXX X  XXXX X 
             XXXXXXXX X  
  XX          XX  XXXXX  
  XX    X       XXXXXX   
 XX    XXX       XX  X   
Generation: 3

  X  XX           XXX    
     XXX         XX      
      XX         XXXX    
      X   X      X   X   
         XXX    X XX     
 XXX      XXX   XXX      
          X X   X XX     
         X  X            
        XXXX             
    XX  XX               
   XXXXXX    XX          
 XX XX X    X XX   XX    
  XX XX     XXXX         
  X   X                  
 X X  XX          XX     
 XX    X      XXXX X     
     XX    XXXX  XX      
    XXX    XXXXXX XX     
   X X     XXX  XXXX     
         X X XXX  XXXXX  
            XX XX   XX   
             XXXXXX X X  
  XX                 X   
 XX    XX       XXXXX    
 X               XXX X   
Generation: 4

     XX          XXX     
     XXX         XXX     
      X          XX      
         XX      X       
  X      XXX    X X      
          XX    XXX      
                         
        XXXX             
        XXX              
   X XX X                
  XXXXXX     XX          
 XXXXXX     X  X         
  X  X                   
  X   X                  
 XX   X        XXXX      
      X     X XXXXX      
    X X    X  XXXXX      
    XX     X XXXX  X     
          XXXXXXXXXXXX   
            XXXX   XXX   
            XX  XX XXX   
                         
 XX              XXXX    
 X              XX XX    
                 X X
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