readscreen.c
Read a file for a screen and place it into the ``map'' array.
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#include <stdio.h>
#include "sokoban.h"
extern char *malloc();
extern FILE *fopen();
extern short level, packets, savepack, rows, cols;
extern char map[MAXROW+1][MAXCOL+1];
extern POS ppos;
short readscreen() {
FILE *screen;
char *fnam;
short j, c, ret = 0;
fnam = malloc( strlen( SCREENPATH) + 11);
sprintf( fnam, "%s/screen.%d", SCREENPATH, level);
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Create the filename.
Could have used MAXPATHLEN for the array
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if( (screen = fopen( fnam, "r")) == NULL)
ret = E_FOPENSCREEN;
else {
packets = savepack = rows = j = cols = 0;
ppos.x = -1; ppos.y = -1;
while( (ret == 0) && ((c = getc( screen)) != EOF)) {
if( c == '\n') {
map[rows++][j] = '\0';
if( rows > MAXROW)
ret = E_TOMUCHROWS;
else {
if( j > cols) cols = j;
j = 0;
}
}
else if( (c == player.obj_intern) || (c == playerstore.obj_intern)) {
if( ppos.x != -1)
ret = E_PLAYPOS1;
else {
ppos.x = rows; ppos.y = j;
map[rows][j++] = c;
if( j > MAXCOL) ret = E_TOMUCHCOLS;
}
}
else if( (c == save.obj_intern) || (c == packet.obj_intern) ||
(c == wall.obj_intern) || (c == store.obj_intern) ||
(c == ground.obj_intern)) {
if( c == save.obj_intern) { savepack++; packets++; }
if( c == packet.obj_intern) packets++;
map[rows][j++] = c;
if( j > MAXCOL) ret = E_TOMUCHCOLS;
}
else ret = E_ILLCHAR;
}
fclose( screen);
if( (ret == 0) && (ppos.x == -1)) ret = E_PLAYPOS2;
}
return( ret);
}
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