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/ Usenet 1994 October / usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso / games / volume6 / sokoban / readscreen.c < prev    next >
C/C++ Source or Header  |  1989-01-03  |  1KB  |  55 lines
  1. #include <stdio.h>
  2. #include "sokoban.h"
  3.  
  4. extern short level, packets, savepack, rows, cols;
  5. extern char map[MAXROW+1][MAXCOL+1];
  6. extern POS ppos;
  7.  
  8. readscreen() 
  9. {
  10.    FILE *screen;
  11.    char *fnam;
  12.    short j, c, ret = 0;
  13.  
  14.    fnam = malloc( strlen( SCREENPATH) + 11);
  15.    sprintf( fnam, "%s/screen.%d", SCREENPATH, level);
  16.    if( (screen = fopen( fnam, "r")) == NULL) 
  17.       ret = E_FOPENSCREEN;
  18.    else {
  19.       packets = savepack = rows = j = cols  = 0;
  20.       storepos( ppos, -1, -1);
  21.       while( (ret == 0) && ((c = getc( screen)) != EOF)) {
  22.          switch( c) {
  23.         case '\n':     map[rows++][j] = '\0';
  24.                if( rows > MAXROW) 
  25.                   ret = E_TOMUCHROWS;
  26.                else {
  27.                   if( j > cols) cols = j;
  28.                   j = 0;
  29.                }
  30.                break;
  31.         case C_PLAYERSTORE:
  32.         case C_PLAYER: if( ppos.x != -1) 
  33.                   ret = E_PLAYPOS1;
  34.                        else { 
  35.                       storepos( ppos, rows, j); 
  36.                   map[rows][j++] = c;
  37.                   if( j > MAXCOL) ret = E_TOMUCHCOLS;
  38.                }
  39.                        break;
  40.         case C_SAVE:   savepack++;
  41.         case C_PACKET: packets++;
  42.         case C_WALL:
  43.         case C_STORE:
  44.         case C_GROUND: map[rows][j++] = c;
  45.                if( j > MAXCOL) ret = E_TOMUCHCOLS;
  46.                break;
  47.         default:       ret = E_ILLCHAR;
  48.      }
  49.       }
  50.       fclose( screen);
  51.       if( (ret == 0) && (ppos.x == -1)) ret = E_PLAYPOS2;
  52.    }
  53.    return( ret);
  54. }
  55.