File with character and number

**Tryhard** · 03-02-2013

I ask this question before but here is another way.

I have a text file that says de3 dn4 dw5 ds8

the de, dn , dw and ds stand for the position of the door(d), and the number stand for the increment of the cursor...
i'm using ncurse for this.

so if the program reads de3, its will post a door to east side at position 3 and so on.

My question is how do i get the "de" and the number and place it to a array or pointer so i can get it to draw the door at that position

here is what i have:
i hope its more clear.

Code:

#include <stdio.h>
#include <string.h>
#include <ncurses.h>
#include <stdlib.h>

#define door '+'
int main ()
{
    initscr()
    FILE * pFile;
    int c;
  
    pFile=fopen ("de3.txt","r");
    if (pFile==NULL) perror ("Error opening file");
    else
    {

    c = fgetc(pFile);
     while(c)
     {
         if( c == 'd' && c == 'e')
            {
                mvaddch(0, takenum[0], door); /* takenum[0] will be the number
position of the door*/
            }
            else
            if( c == 'd' && c == 'n')
            {
                mvaddch(0, takenum[1], door); /* takenum[0] will be the number
                position of the door*/
            }
            }

    }
    fclose (pFile);
    return 0;
}

**Salem** · 03-02-2013

> My question is how do i get the "de" and the number and place it to a array or pointer so i can get it to draw the door at that position
I think you answered your own question - use an array.

Creating some kind of 'map' of your game world is pretty much essential.

Code:

void handleCommand(const char *c,char board[][100])
{
  char  item;
  char  direction;
  int   distance;

  // analyse for dw3 etc
  sscanf(c,"%c%c%d",&item,&direction,&distance);
  
  if (item == 'd') {
    if (direction == 'e') {
      board[x-direction][y] = DOOR;
    } else if (direction == 'n') {
      board[x][y-direction] = DOOR;
    }
  }
}


int main()
{
  char board[100][100];
  initscr()
  FILE *pFile;
  char command[10];

  pFile = fopen("de3.txt", "r");
  if (pFile == NULL)
    perror("Error opening file");
  else {
    while (fscanf(fp, "%s", command) == 1) {
      handleCommand(command,board);
    }
  }
  fclose(pFile);
  return 0;
}

**Tryhard** · 03-03-2013

i changed some stuffs but the thing is..its doesnt get the other item, its only gets the first one, i tried putting it into an array but its still doesnt work, i even tried a do while loop. should i increment the item for it to move and check the other one??

Code:

void handleCommand(const char *c,char board[][100])
{
    char  item;
    char  direction;
    int   distance;
    int x = 0, y = 0;
    
    /* analyse for dw3 etc  */
    sscanf(c,"%c%c%d",&item,&direction,&distance);
    initscr();
    while(item == 'd') {
        if (direction == 'e') {
            mvaddch(distance,0,DOOR);
        }
        if (direction == 'n') {
            mvaddch(0,distance,DOOR);
        }
        
     getch();
     endwin();
    }
}


int main()
{
    char board[100][100];
    initscr();
    FILE *pFile;
    char command[10];
    
    
    pFile = fopen("room.txt", "r");
    if (pFile == NULL)
        perror("Error opening file");
    else {
        while (fscanf(pFile, "%s", command) == 1) {
            handleCommand(command,board);
        }
    }
    fclose(pFile);
    return 0;
}

**Salem** · 03-03-2013

Like this.

Code:

void handleCommand(const char *c,char board[][100])
{
  char  item;
  char  direction;
  int   distance;

  // analyse for dw3 etc
  sscanf(c,"%c%c%d",&item,&direction,&distance);
  
  if (item == 'd') {
    if (direction == 'e') {
      board[x-direction][y] = DOOR;
    } else if (direction == 'n') {
      board[x][y-direction] = DOOR;
    }
  }
}

void display ( char board[][100] ) {
    initscr();
    // mvaddch in a loop, to display whatever part of the board is interesting
    getch();
    endwin();
}

int main()
{
  char board[100][100];
  initscr()
  FILE *pFile;
  char command[10];

  pFile = fopen("de3.txt", "r");
  if (pFile == NULL)
    perror("Error opening file");
  else {
    while (fscanf(fp, "%s", command) == 1) {
      handleCommand(command,board);
    }
    display(board);
  }
  fclose(pFile);
  return 0;
}

You read the WHOLE file, then display the whole board just the once.

**Tryhard** · 03-03-2013

so if i understand, mvaddch should be in a loop so its display the board? what is fp...shouldnt it be the file name?

**Salem** · 03-03-2013

> so if i understand, mvaddch should be in a loop so its display the board?
Yes

> what is fp...shouldnt it be the file name?
No, it should be the opened file.

**Tryhard** · 03-03-2013

i still dont understand how to put mvaddch in a loop to display the board...how do i do it?

**Salem** · 03-03-2013

In essence, it looks something like this.
But you need to get the r,c thing the right way round, and if the board is bigger than the screen, select the right part of the board.

Code:

for ( r = 0 ; r < 100 ; r++ ) {
  for ( c = 0 ; c < 100 ; c++ ) {
    mvaddch(r,c,board[r][c]);
  }
}

**Tryhard** · 03-03-2013

i did it but as a result it only show the first element, and never gets to the rest...so its only gets de3

Code:

 for ( x = 0 ; x < distance ; x++ ) {
        for ( y = 0 ; y < distance ; y++ ) {
            mvaddch(0,distance,DOOR);
        }
    }

**Tryhard** · 03-03-2013

ok but now its work but it print the other element only after i click enter.

how can i print it without clicking enter.

**Salem** · 03-03-2013

One last time, stop trying to draw the screen while you're reading the file.

Code:

#include <stdio.h>
#include <string.h>
#include <ncurses.h>
#include <stdlib.h>

#define BOARD_SIZE  10

void display ( char board[][BOARD_SIZE] ) {
  initscr();
  for ( int r = 0 ; r < BOARD_SIZE ; r++ ) {
    for ( int c = 0 ; c < BOARD_SIZE ; c++ ) {
      mvaddch(r,c,board[r][c]);
    }
  }
  refresh();
  getch();
  endwin();
}
 
int main()
{
  char board[BOARD_SIZE][BOARD_SIZE];
  for ( int r = 0 ; r < BOARD_SIZE ; r++ ) {
    for ( int c = 0 ; c < BOARD_SIZE ; c++ ) {
      board[r][c] = ' ';
    }
  }
  // cut here =====
  board[rand()%BOARD_SIZE][rand()%BOARD_SIZE] = '+';
  board[rand()%BOARD_SIZE][rand()%BOARD_SIZE] = '-';
  board[rand()%BOARD_SIZE][rand()%BOARD_SIZE] = '*';
  board[rand()%BOARD_SIZE][rand()%BOARD_SIZE] = '/';
  // cut here =====
  display(board);
  return 0;
}

Now, replace the random positions with a call to your function to read the file, and populate the board.

**Tryhard** · 03-03-2013

yeah i did this before, its only display + all over the screen 10 times...its doesnt take the position of the + and puts it in that position...

**Tryhard** · 03-03-2013

Thanks Salem, i got it to work but just a little different from what you suggested...thanks for helping me

**Tryhard** · 03-03-2013

[solve]

this is done

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