[php] Memory Game

[Callan S.]

Thought it'd be nice to post this here, since php can do this sort of game quite well and it engages more than just clicking does. You can adjust $gridwidth and gridheight for larger grids. Play: Try and make pairs!

Planning to use this in an extension to my game, Fight Cycle
Perhaps pop a link in the credits to it if you use this code in your game.

Code: Select all

<?php
session_start();

$gridwidth=5;
$gridheight=4;

$cardnumb=$gridwidth*$gridheight;



if (!isset($_SESSION['memgame_show1x']))
   {
   $_SESSION['memgame_show1x']=0;
   $_SESSION['memgame_show1y']=0;
   $_SESSION['memgame_show2x']=0;
   $_SESSION['memgame_show2y']=0;
   
   $_SESSION['memgame_cardsflipped']=0;
   $_SESSION['memgame_reset']=0;
   }

if (!isset($_SESSION['memgame_grid']) || $_SESSION['memgame_reset']==1)
{
  $_SESSION['memgame_reset']=0;
  for ($loopy=1;$loopy<=$gridheight;$loopy+=1)
    {
    for ($loopx=1;$loopx<=$gridwidth;$loopx+=1)
       {
          if (($loopx+(($loopy-1)*$gridwidth))<=($cardnumb/2)) $_SESSION['memgame_grid'][$loopx][$loopy]=($loopx+(($loopy-1)*$gridwidth));
          else $_SESSION['memgame_grid'][$loopx][$loopy]=($loopx+(($loopy-1-($gridheight/2))*$gridwidth));
       }
    }

// jumble them
  for ($loopy=1;$loopy<=$gridheight;$loopy+=1)
    {
    for ($loopx=1;$loopx<=$gridwidth;$loopx+=1)
      {
      $loc2x=rand(1,$gridwidth);
      $loc2y=rand(1,$gridheight);
      $store=$_SESSION['memgame_grid'][$loc2x][$loc2y];
      $_SESSION['memgame_grid'][$loc2x][$loc2y]=$_SESSION['memgame_grid'][$loopx][$loopy];
      $_SESSION['memgame_grid'][$loopx][$loopy]=$store;
      }
    }
}


if (isset($_GET['x']))
   {
   if ($_SESSION['memgame_show1x']==0)
      {
      $_SESSION['memgame_show1x']=floor($_GET['x']);
      $_SESSION['memgame_show1y']=floor($_GET['y']);
      }
   else if ($_SESSION['memgame_show2x']==0)
      {
      $_SESSION['memgame_show2x']=floor($_GET['x']);
      $_SESSION['memgame_show2y']=floor($_GET['y']);
      if ($_SESSION['memgame_show2x']==$_SESSION['memgame_show1x'] && $_SESSION['memgame_show2y']==$_SESSION['memgame_show1y'])
         {$_SESSION['memgame_show2x']=0;$_SESSION['memgame_show2y']=0;}
      }

   }


echo "<table border=0 cellspacing=0 cellpadding=0>";
  for ($loopy=1;$loopy<=$gridheight;$loopy+=1)
    {
    echo "<tr>";
    for ($loopx=1;$loopx<=$gridwidth;$loopx+=1)
       {
          $val=$_SESSION['memgame_grid'][$loopx][$loopy];
          echo "<td width=50px height=100px>";

          if ($val>0)
          {
          if (($_SESSION['memgame_show1x']==$loopx && $_SESSION['memgame_show1y']==$loopy) || ($_SESSION['memgame_show2x']==$loopx && $_SESSION['memgame_show2y']==$loopy))
             {
                echo "<a href='?x=".$loopx."&y=".$loopy."'>";
                // this is where you would show the card face. Give each card a name like 'card1.jpg' 'card2.jpg' and
                // it will show one that corresponds to $val, which is the value of the current grid position.

                // echo "<img src='card".$val.".jpg'>";

                echo $val; // comment this out once you have graphics to use for the cards

                echo "</a>";
             }
             else echo "<a href='?x=".$loopx."&y=".$loopy."'><img src='card.gif'></a>";
          }

          echo "</td>";
       }
    echo "</tr>";
    }
echo "</table>";

// did the player get it right?
if ($_SESSION['memgame_show1x']>0 && $_SESSION['memgame_show2x']>0)
   {
   $loc1x=$_SESSION['memgame_show1x'];
   $loc1y=$_SESSION['memgame_show1y'];
   $loc2x=$_SESSION['memgame_show2x'];
   $loc2y=$_SESSION['memgame_show2y'];

   if ($_SESSION['memgame_grid'][$loc1x][$loc1y]==$_SESSION['memgame_grid'][$loc2x][$loc2y] && $_SESSION['memgame_grid'][$loc1x][$loc1y]>0)
      {
      echo "Excellent, you got a pair!<p>";
      $_SESSION['memgame_grid'][$loc1x][$loc1y]=0;
      $_SESSION['memgame_grid'][$loc2x][$loc2y]=0;
      $_SESSION['memgame_cardsflipped']+=2;
      // enter your reward for success here
      }
      else
      {
      echo "Not a pair, sorry!<p>";
      // if you have a minor reward just for clicking, put it here
      }
   $_SESSION['memgame_show1x']=0;
   $_SESSION['memgame_show1y']=0;
   $_SESSION['memgame_show2x']=0;
   $_SESSION['memgame_show2y']=0;

   if ($_SESSION['memgame_cardsflipped']>=$cardnumb)
      {
      echo "You finished the grid! Well done!<p>";
      $_SESSION['memgame_cardsflipped']=0;
      $_SESSION['memgame_reset']=1;
      // if you have a reward for finishing a whole grid, put it here
      echo "<font size=1><a href='?'>(( Refresh ))</a></font><br>";
      }

   header("Refresh: 2; url='?'");
   }

?>

And a graphic I got from public domain for a card back is attached. Just put it in the same directory, for now.