Minesweeper Project Problems.

Sn1p34 · April 4, 2007

I've been haveing some problems with one of my php projects bear with me because I'm still learning and don't have a very braud knowleage on php.

I'm trying to get the areas that are marked as a mine with a flag not to spread, but the only way I can prevent it is by using a die command (which is not an ideal solution) for some reason it dosen't spread when the die command is there but when I don't include it the selected area spreads.

<?php

session_start();

if (isset($_SESSION[mine_guess])) $mine_guess = $_SESSION[mine_guess];
if (isset($_SESSION[empty_guess])) $empty_guess = $_SESSION[empty_guess];

function html_head($name) {
echo "<html><head><title>$name</title></head><body>";
}

// Sets up the board
function make_board()	{
$_SESSION = array();
session_destroy();
session_start();
$_SESSION[playing] = TRUE;
if($_POST[level]==easy)	{
	$_SESSION[board_size] = 7;
	$amount_mines = 0;
}
if($_POST[level]==medium)	{
	$_SESSION[board_size] = 12;
	$amount_mines = 25;
}
if($_POST[level]==hard)	{
	$_SESSION[board_size] = 13;
	$amount_mines = 30;
}
// Loop through board and create mines
for ($x = 1; $x <= $_SESSION[board_size]; ++$x)	{
	for ($y = 1; $y <= $_SESSION[board_size]; ++$y)	{
		$rand = rand(0,100);
		if ($rand<$amount_mines) $board[$x][$y] = "M";
	}	
}
$_SESSION[board] = $board;
}
if (isset($_POST[level])) {
# Make board
make_board();
#Delete variables
unset($mine_guess,$empty_guess);
}
html_head("Minesweeper");

// If the user is playing hide this menu
if (!$_SESSION[playing])	{
echo "<form name=levelchooser method=post action=mine.php>";
echo "Please choose a level!";
echo "<select name=level>";
echo "<option value=\"easy\">Easy</option>";
echo "<option value=\"medium\">Medium</option>";
echo "<option value=\"hard\">Hard</option>";
echo "</select>";
echo "<input type=submit value=\"New Game!\">";
echo "</form>";
}
$newgame = $_GET[level];


// Counts the players guesses
function count_guesses($empty_guess,$board_size)	{
for ($x = 1; $x <= $board_size; ++$x)	{
	for ($y = 1; $y <= $board_size; ++$y)	{
		if (isset($empty_guess[$x][$y])) $num_squares++;
		}
}
return $num_squares;
}

// Counts the players mine guesses
function mine_guesses($mine_guess,$board_size)	{
for ($x = 1; $x <= $board_size; ++$x)	{
	for ($y = 1; $y <= $board_size; ++$y)	{
		if (isset($mine_guess[$x][$y])) $mine_squares++;
		}
}
return $mine_squares;
}


// Counts the amount of mines on the board
function amount_mines($x,$y,$board_size)	{
for ($x = 1; $x <= $board_size; ++$x)	{
	for ($y = 1; $y <= $board_size; ++$y)	{
		if (is_mine($x,$y)) $num_mines++;
	}	
}
return $num_mines;
}

// Determines if the selected spot is a mine
function is_mine($x,$y) {
if ($_SESSION[board][$x][$y] == "M") return TRUE;
else return FALSE;
}

// If the player loses this function will be executed
function you_lose() {
echo "<form name=levelchooser method=post action=mine.php>";
echo "Please choose a level!";
echo "<select name=level>";
echo "<option value=\"easy\">Easy</option>";
echo "<option value=\"medium\">Medium</option>";
echo "<option value=\"hard\">Hard</option>";
echo "</select>";
echo "<input type=submit value=\"New Game!\">";
echo "</form>";
echo "<h1>You Lose!</h1>";
$square_colour[$xcord][$ycord] = "red";
$lost = TRUE;
}

// Counts the amount of mines around the box
function count_mines($x,$y)	{
// Check the surrounding squares (
if (is_mine($x-1,$y+1)) ++$number_mines;
if (is_mine($x-1,$y)) ++$number_mines;
if (is_mine($x-1,$y-1)) ++$number_mines;
if (is_mine($x,$y+1)) ++$number_mines;
if (is_mine($x,$y-1)) ++$number_mines;
if (is_mine($x+1,$y-1)) ++$number_mines;
if (is_mine($x+1,$y)) ++$number_mines;
if (is_mine($x+1,$y+1)) ++$number_mines;
	return $number_mines;
}

function spread($empty_guess,$x,$y)	{
  $empty_guess[$x][$y] = TRUE;
if (count_mines($x,$y)== 0)	{
	$empty_guess[$x-1][$y+1] = TRUE;
	#unset($mine_guess[$x-1][$y+1]);
	$empty_guess[$x-1][$y] = TRUE;
	#unset($mine_guess[$x-1][$y]);
	$empty_guess[$x-1][$y-1] = TRUE;
	#unset($mine_guess[$x-1][$y-1]);
	$empty_guess[$x][$y+1] = TRUE;
	#unset($mine_guess[$x][$y+1]);
	$empty_guess[$x][$y-1] = TRUE;
	#unset($mine_guess[$x][$y-1]);
	$empty_guess[$x+1][$y-1] = TRUE;
	#unset($mine_guess[$x+1][$y-1]);
	$empty_guess[$x+1][$y] = TRUE;
	#unset($mine_guess[$x+1][$y]);
	$empty_guess[$x+1][$y+1] = TRUE;
	#unset($mine_guess[$x+1][$y+1]);
}
#unset($mine_guess[$x][$y]);
return $empty_guess;
}

// Width and height
$width = "35px";
$height = "35px";
$x_cord = 50;
$y_cord = 50;

// If the user loses change the square to red else make it yellow
if(isset($_GET[guess])) {
$xcord = $_GET[xcord];
$ycord = $_GET[ycord];
if (is_mine($xcord,$ycord))	{
		you_lose();
		$_SESSION[game_die] = TRUE;
  }
  else {
    $empty_guess = spread($empty_guess,$xcord,$ycord);
    echo "hello";
    die;
  }
}
# Process guess
if (isset($_GET[mine])) {
$xcord = $_GET[xcord];
$ycord = $_GET[ycord];
$mine_guess[$xcord][$ycord] = TRUE;
unset($_SESSION[game_die]);
}
$yellow_squares = count_guesses($empty_guess,$_SESSION[board_size]);
$number = amount_mines($x,$y,$_SESSION[board_size]);

// Set the session board size as a variable
$board_size = $_SESSION[board_size];

// Determine if the player has won
$size_board = $board_size*$board_size;
if($_POST[level]==easy)	{
$_SESSION[boards] = $size_board-$number;
}
if($_POST[level]==medium)	{
$_SESSION[boards] = $size_board-$number;
}
if($_POST[level]==hard)	{
$_SESSION[boards] = $size_board-$number;
}
if ($_SESSION[boards] == $yellow_squares)	{
	if ($_SESSION[boards] > 0)	{
	echo "<form name=levelchooser method=post action=mine.php>";
	echo "Please choose a level!";
	echo "<select name=level>";
	echo "<option value=\"easy\">Easy</option>";
	echo "<option value=\"medium\">Medium</option>";
	echo "<option value=\"hard\">Hard</option>";
	echo "</select>";
	echo "<input type=submit value=\"New Game!\">";
	echo "</form>";
	echo "<h1>You Win!</h1>";
	$finish = TRUE;
	}
}
$spaces = $_SESSION[boards];
// echo "Empty Spaces: $spaces";

$y_cord = 220;

// If the square is set as mine, unset it if 
if ($_GET["unset"] == yes)	{
$x = $_GET["xcord"];
$y = $_GET["ycord"];
unset($mine_guess[$x][$y]);
}

// Sets up the board
for ($y = 1; $y <= $_SESSION[board_size]; ++$y)	{
$y_cord += $height;
$x_cord = 20;
for ($x = 1; $x <= $_SESSION[board_size]; ++$x)	{
	$image = "bak.png";
	$x_cord += $width;
		$mines = "";
		if ($empty_guess[$x][$y]) {
			$image = "bak_down.png";
			$mines = count_mines($x,$y);
		}
	if ($mine_guess[$x][$y]) $image = "smallflag.png";

	// find out if square is mine and $_SESSION[die] is set, if so, make colour = red
	if ($cheat==enter) {
		if (is_mine($x,$y)) $image = "mine.png";
	}
		if ($_SESSION[game_die]==TRUE)	{
			if (is_mine($x,$y)) $image = "mine.png";
		}
	// If the player loses disable the bord
		if (!$_SESSION[game_die]) {
			# if not flagged
			if (!$mine_guess[$x][$y]) {
			echo "<div onclick=\"javascript:document.location.href='mine.php?xcord=$x&ycord=$y&guess=yes';\" style=\"color: black; border: 0px solid darkgrey; background-image: url(images/$image); position: absolute; left: $x_cord; top: $y_cord; width: $width; height: $height\">";
		}
		else {
			echo "<div onclick=\"javascript:document.location.href='mine.php?xcord=$x&ycord=$y&unset=yes';\" style=\"color: black; border: 0px solid darkgrey; background-image: url(images/$image); position: absolute; left: $x_cord; top: $y_cord; width: $width; height: $height; \">";
		}
	}
	else echo "<div style=\"color: black; border: 1px solid darkgrey; background-image: url(images/bak.png); position: absolute; left: $x_cord; top: $y_cord; width: $width; height: $height\">";

	// If die equals TRUE place a image on every square with a mine
	if ($_SESSION[game_die])	{	
		if (is_mine($x,$y))	{
			echo "<div style=\"position: absolute; left: 7px; top: 7px;\"><img src=images/mine.png></div>";
		}
	}
		if (!$_SESSION[game_die])	{
			if ($mines == 5) $colour = "darkred";
			if ($mines == 4) $colour = "darkgreen";
			if ($mines == 3) $colour = "darkblue";
			if ($mines == 2) $colour = "green";
			if ($mines == 1) $colour = "blue";
			if ($empty_guess[$x][$y] AND !$mine_guess[$x][$y])
			echo "<div align=center style=\"color: $colour; position: absolute; left: 12px; top: 9px;\"><b>$mines</b></div>";
		else if (!$mine_guess[$x][$y]) echo "<a href='mine.php?xcord=$x&ycord=$y&mine=yes' align=center><img src=images/flag_corner.gif border='0'></a></div>";
		}
	echo "</div>";
}	
}


$squares_left = $size_board-$yellow_squares-$number;
$guess_mine = mine_guesses($mine_guess,$_SESSION[board_size]);

// Unsets a mine guess if possible
if ($guess_mine == FALSE)	{
$guess_mine = 0;
}
if ($yellow_squares == FALSE)	{
$yellow_squares = 0;
}

// Set up the statistics table
echo "<div style=\"position: absolute; left: 27px; top: 100px;\">";
echo "<table border=0 cellpadding=1 cellspaceing=1 bgcolor=red width=300>";
echo "<tr>";
echo "<td bgcolor=orange width=40% colspan=3>";
echo "<center><b><h2>Statistics</h2></b>";
echo "</td></tr>";
echo "<td bgcolor=red colspan=1 width=15%>";
echo "Mines: $number";
echo "</td>";
echo "<td bgcolor=orange colspan=1 width=15%>";
echo "Guessed: $yellow_squares";
echo "</td></tr>";
echo "<td bgcolor=orange colspan=1 width=15%>";
echo "Mines Gussed: $guess_mine";
echo "</td>";
echo "<td bgcolor=red colspan=1 width=15%>";
echo "Squares Left: $squares_left";
echo "</center>";
echo "</table>";
echo "</div>";

// Instructions
function instructions()  {
    echo "<div style=\"position: absolute; left: 427px; top: 35px;\">";
    echo "<h1><b>Instructions</h1></b>";
    echo "1)	Select a level from the top left menu and press new game.<br>";
    echo "2)	Click on a square if your sure there is no mine there.<br>";
    echo "3)	Click on the small flag in the top left of the square to mark it.<br>";
    echo "4)	To win the game you must uncover all the squares with no mines.";
    echo "</div>";
}

echo "<div style=\"position: absolute; left: 40px; top: 75px;\">";
if (!$finish == TRUE) {
  if (!$_SESSION[game_die]) {
    if (!$ins)  {
    $ins = "yes";
      if ($ins == yes) {
      echo "<a href=mine.php?instructions=$ins>Show Instructions</a>";
          }
        }
    }
}

$ins = $_GET[instructions];

if (!$finish == TRUE) {
  if (!$_SESSION[game_die]) {
    if ($ins==yes)  {
      $ins = "no";
      echo " <a href=mine.php?instructions=$ins>Hide Instructions</a>";
      echo "</div>";
      instructions();
        }
    }
}

if (isset($mine_guess)) $_SESSION[mine_guess] = $mine_guess;
if (isset($empty_guess)) $_SESSION[empty_guess] = $empty_guess;
if ($lost) {
$_SESSION = array();
unset($board);
session_destroy;
session_start;
make_board();
}

?>

The script can be tested here http://www.enertechdbi.com/MineUpdated/mine.php (without the debuging)

any help would be greatly appreciated.

Thanks,

Regards,

Cameron McCuish

PC Nerd · April 4, 2007

um, i havent got time to read the code, but i think that this project wuld be best done n javascript...

the only suggestion to your php version, is that you specify each button with a unique id, then random assing each id with either pressed, mine, or num.

then write to a database or file each time a button is pressed, to specify which ones which.

after thinking about it, simply write the file to wha tht e button is, butthe actuly php assingment.....

that way it keeps updateing, and you could use a die() to stop if a mine appears

in terms of the buttons being auto pressed, i think that paybe your accidently telling it to set as defult pressed, when a button is there

good luck

PC Nerd

soz if ive just repeated you code.... :-\

Sn1p34 · April 4, 2007

I understand that the project would best be done in Java script, but I'm takeing a PHP coarse hense the reason it is coded in php . I've already spoke to my teacher about this, and he was unable to figure out what was cuaseing the problem, and sugested I post it on a forum to see if anyone else would know what is wrong.

Sn1p34 · April 4, 2007

Sorry for bumping, I'm just very stumpt on this problem.

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