php/tictactoe.php

   1 <?php
   2 //Tic-Tac-Toe
   3 //<- Harvie 2oo7
   4 /*
   5 Inspired by WarGames ;D
   6 */
   7
   8 echo("Tic-Tac-Toe (<- Harvie 2oo7)\n");
   9 echo("Inspired by WarGames ;D\n");
  10
  11 //Settings////////////////////////////////////////////////////////
  12   //Skin:
  13     $cross = "X";
  14     $circl = "O";
  15     $versep = "|";
  16     $horsep = "-";
  17     $ttt = " 123456789";
  18   //First player:
  19     $p = false; //false - O; true - X;
  20   //Artificial inteligency:
  21     $ai = 0; /* AI (very poor == rand(1,9) ;)
  22     Settings:
  23     0 - Circle
  24     1 - Cross
  25     2 - Disabled
  26     3 - PCvsPC
  27     */
  28
  29 //Functions//////////////////////////////////////////////////////
  30 //
  31 function ttt_print($ttt) {
  32   $v = $GLOBALS["versep"];
  33   $h = $GLOBALS["horsep"];
  34
  35   echo("\n");
  36   echo($ttt[7].$v.$ttt[8].$v.$ttt[9]."\n");
  37   echo("$h$h$h$h$h\n");
  38   echo($ttt[4].$v.$ttt[5].$v.$ttt[6]."\n");
  39   echo("$h$h$h$h$h\n");
  40   echo($ttt[1].$v.$ttt[2].$v.$ttt[3]."\n");
  41   echo("\n");
  42 }
  43
  44 //
  45 function ttt_match($ttt, $place, $player) {
  46   $x = $GLOBALS["cross"];
  47   $o = $GLOBALS["circl"];
  48
  49   if( ($place>0 && $place<10) && ($ttt[$place] != $x && $ttt[$place] != $o) &&  is_numeric($place) ) {
  50     $ttt[$place] = $player;
  51   } else { $GLOBALS["err"] = true; }
  52   return $ttt;
  53 }
  54
  55 //
  56 function ttt_check($ttt) {
  57   $x = $GLOBALS["cross"];
  58   $o = $GLOBALS["circl"];
  59   //Horizontal
  60   if( $ttt[7] == $ttt[8] && $ttt[8] == $ttt[9] ) { return 1; }
  61   if( $ttt[4] == $ttt[5] && $ttt[5] == $ttt[6] ) { return 1; }
  62   if( $ttt[1] == $ttt[2] && $ttt[2] == $ttt[3] ) { return 1; }
  63   //Vertical
  64   if( $ttt[7] == $ttt[4] && $ttt[4] == $ttt[1] ) { return 1; }
  65   if( $ttt[8] == $ttt[5] && $ttt[5] == $ttt[2] ) { return 1; }
  66   if( $ttt[9] == $ttt[6] && $ttt[6] == $ttt[3] ) { return 1; }
  67   //Diagonal
  68   if( $ttt[7] == $ttt[5] && $ttt[5] == $ttt[3] ) { return 1; }
  69   if( $ttt[1] == $ttt[5] && $ttt[5] == $ttt[9] ) { return 1; }
  70   //Nobody won
  71   for($i=1;$i<strlen($ttt);$i++) {
  72     if($ttt[$i] != $x && $ttt[$i] != $o) { return 0; }
  73   }
  74   return -1;
  75 }
  76
  77 //Code///////////////////////////////////////////////////////////
  78
  79 //Init///////////////////////////////////////////////////////////
  80 $__STDIN__ = fopen("php://stdin", "rb");
  81 $err = false;
  82 srand(time());
  83
  84 //Go/////////////////////////////////////////////////////////////
  85 ttt_print($ttt);
  86 while(1) {
  87   if($p) { $player = $cross; } else { $player = $circl; }
  88
  89   echo("$player:");
  90
  91   if( ($p == $ai || $ai == 3) && $ai != 2 ) {
  92     $c = rand(1,9);
  93     echo($c);
  94   } else {
  95     $c = "nan";
  96     while( !is_numeric($c) ) { $c = fgetc($__STDIN__); }
  97     //echo($c); //Debug
  98   }
  99
 100   $ttt = ttt_match($ttt, $c, $player); if($err) { $err = false; continue; }
 101   elseif( ($p == $ai || $ai == 3) && $ai != 2 ) { echo("\n"); }
 102
 103   ttt_print($ttt);
 104
 105   if(ttt_check($ttt) == -1) { echo("!!! Nobody won !!!\n"); break; }
 106   if(ttt_check($ttt)) { echo("!!! Player $player won !!!\n"); break; }
 107
 108   $p = !$p;
 109 }
 110
 111 //system("pause");