t/boardmove.c

   1 #include <config.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 #include "game.h"
   6
   7 static const char *progname;
   8
   9 void show_board(uint_fast32_t shape)
  10 {
  11         unsigned i, j;
  12
  13         for (i = 0; i < 5; i++) {
  14                 unsigned row = (shape >> 5*i) & 0x1f;
  15
  16                 for (j = 0; j < 5; j++) {
  17                         printf("%c", row & 1 ? '@' : '.');
  18                         row >>= 1;
  19                 }
  20                 putchar('\n');
  21         }
  22 }
  23
  24 static void print_usage(FILE *f)
  25 {
  26         fprintf(f, "Usage: %s sequence\n", progname);
  27 }
  28
  29 static int get_seq(char c)
  30 {
  31         if (c >= '0' && c <= '4') {
  32                 return c - '0';
  33         }
  34
  35         if (c == 0) {
  36                 fprintf(stderr, "%s: unexpected end of sequence\n", progname);
  37         } else {
  38                 fprintf(stderr, "%s: invalid character %c\n", progname, c);
  39         }
  40         exit(EXIT_FAILURE);
  41 }
  42
  43 int main(int argc, char **argv)
  44 {
  45         struct board board;
  46         const char *seq;
  47         int i = 0;
  48
  49         if (argc > 0)
  50                 progname = argv[0];
  51
  52         if (argc != 2) {
  53                 print_usage(stderr);
  54                 return EXIT_FAILURE;
  55         }
  56
  57         seq = argv[1];
  58         board.x = get_seq(seq[i++]);
  59         board.y = get_seq(seq[i++]);
  60
  61         board.game[0] = GAME_MASK ^ board_position(board.x, board.y);
  62         board.game[1] = board.game[2] = board.game[3] = board.game[0];
  63
  64         while (1) {
  65                 int j, x, y;
  66
  67                 show_board(board.game[0]);
  68                 for (j = 1; j < 4; j++) {
  69                         if (board.game[j] != board.game[0]) {
  70                                 fprintf(stderr, "%s: plane %d mismatch\n",
  71                                                 progname, j);
  72                                 board.game[j] = board.game[0];
  73                         }
  74                 }
  75
  76                 if (seq[i]) {
  77                         x = get_seq(seq[i++]);
  78                         y = get_seq(seq[i++]);
  79                         game_do_move(&board, x, y);
  80                         putchar('\n');
  81                 } else {
  82                         break;
  83                 }
  84         }
  85
  86         return 0;
  87 }