[SOLVED] Blackjack / 21

DeanWhitehouse · December 27, 2008

Hello

First off my code

<?php
//Blackjack.php
ob_start();
session_start();

$card_10 = array(11,12,13);
$card_type = array("c","d","h","s");

if(isset($_GET['reset']))
{
for($i = 1;$i <= $_SESSION['player_count'];$i++)
{
	unset($_SESSION['player_'.$i]);
}

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	unset($_SESSION['comp_'.$i]);
}

unset($_SESSION['comp_count']);
unset($_SESSION['player_count']);

header("Location:test.php");
}

if(!isset($_SESSION['player_1']) || !isset($_SESSION['comp_1']))
{
$_SESSION['player_1'] = rand(1,10);
$_SESSION['player_2'] = rand(1,10);	
$_SESSION['comp_1'] = rand(1,10);
$_SESSION['comp_2'] = rand(1,10);
$_SESSION['comp_count'] = 2;
$_SESSION['player_count'] = 2;
}

echo "<br>Player<br>";

for($i = 1;$i <= $_SESSION['player_count'];$i++)
{
if($_SESSION['player_'.$i] == 10)
{
	shuffle($card_10);
	$img = $card_10[rand(0,2)];
}
else
	$img = $_SESSION['player_'.$i];

shuffle($card_type);

?>
<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">
<?php
$cards[] = $_SESSION['player_'.$i];
}

echo "Total: ".array_sum($cards);

echo "<br>Computer<br>";

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
$comp[] = $_SESSION['comp_'.$i];
}


if(isset($_GET['hit']))
{
if(array_sum($comp) < 17)
{
	$_SESSION['comp_count'] += 1;
	$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
}
$_SESSION['player_count'] += 1;
$_SESSION['player_'.$_SESSION['player_count']] = rand(1,10);
header("Location:test.php");
}

if(isset($_GET['stick']))
{
if(array_sum($comp) < 17)
{
	$_SESSION['comp_count'] += 1;
	$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
	header("Location:test.php?stick");		
}

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	if($_SESSION['comp_'.$i] == 10)
	{
		shuffle($card_10);
		$img = $card_10[rand(0,2)];
	}
	else
		$img = $_SESSION['comp_'.$i];

	shuffle($card_type);

	?>
	<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">
	<?php
}	

if(array_sum($cards) == array_sum($comp))
	echo "<br>Draw";
elseif(array_sum($cards) == 21 || array_sum($comp) > 21 || array_sum($cards) > array_sum($comp) && array_sum($comp) < 22 && array_sum($comp) != 21 && array_sum($cards) != 21 && array_sum($cards) < 22)
	echo "<br>You win";
else
	echo "<br>You loose";	
}
else
{	
echo "<br>";

if(array_sum($cards) == 21 || array_sum($comp) > 21 || in_array(1,$cards) && in_array(10,$cards) && array_sum($cards) < 22)
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($_SESSION['comp_'.$i] == 10)
		{
			shuffle($card_10);
			$img = $card_10[rand(0,2)];
		}
		else
			$img = $_SESSION['comp_'.$i];

		shuffle($card_type);

		?>
		<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">
		<?php
	}
	echo "<br>You Win";			
}
elseif(array_sum($cards) > 21 || array_sum($comp) == 21 || in_array(1,$comp) && in_array(10,$comp) && array_sum($comp) < 22)
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($_SESSION['comp_'.$i] == 10)
		{
			shuffle($card_10);
			$img = $card_10[rand(0,2)];
		}
		else
			$img = $_SESSION['comp_'.$i];

		shuffle($card_type);

		?>
		<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">
		<?php
	}	

	echo "<br>You Loose";
}
else
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($i == 1)
		{
			if($_SESSION['comp_'.$i] == 10)
			{
				shuffle($card_10);
				$img = $card_10[rand(0,2)];
			}
			else
				$img = $_SESSION['comp_'.$i];

			shuffle($card_type);

			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">
			<?php
		}
		else
		{
			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/cardback.gif">
			<?php		
		}
	}
}
}
?>
<br>
<a href="?hit">Hit</a>
<a href="?reset">Reset</a>
<a href="?stick">Stick</a><br>

Ok, to explain the code will basically play against you when playing 21/blackjack.

This all works fine, the problem i am having is that the card type (e.g. Diamonds) constantly changes, when you hit stick or hit, therefore the cards you have could all be hearts then change to diamonds.

I don't have any idea how i could avoid this, anyone?

Second off when the player or computer's card is a ten we have it show a king, queen or jack. This ,like above , changes constantly so one turn you could have a king then when you hit it could change to a queen.

Again any ideas?

If you wish to see what i mean here it is

http://gangster.game-design.djw-designs.com/test.php

Thanks,

Blade

DarkSuperHero · December 27, 2008

i believe that everytime you use:

shuffle($card_type);

it changes the keys of the array, so that you no longer have what you started with...

<?php 
$card_type[0] = "c";
$card_type[1] = "d";
$card_type[2] = "h";
$card_type[3] = "s";

changes to:

$card_type[3] = "c";
$card_type[2] = "d";
$card_type[1] = "h";
$card_type[0] = "s";
// (randomizes, so the key gives a diff value every time)

DeanWhitehouse · December 27, 2008

yes i know, that is so when you get a new card (hit) it will have a random card type

DarkSuperHero · December 27, 2008

what about...

<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$card_type[rand(0,3)]?>.gif">

is that snippet, saying choose a random image type? eg; pick a random type (CLUBS, HEARTS, DIAMONDS, or SPADES) and "show it".... hence you have different card type every time it refreshes ?

DeanWhitehouse · December 27, 2008

yes

DarkSuperHero · December 27, 2008

get what I am trying to get at ?

Your asking the script to choose a different image everytime...you need to somehow keep track of what type of card was chosen before the current card. like you keep track of the number the card was in the session....

DeanWhitehouse · December 27, 2008

Yes, now you have understood the problem.

laffin · December 27, 2008

Than ya don't do it on a random basis.

U make a deck, than shuffle the cards, than deal the cards.

its the same thing as if ya was playing live game, dealers dun just grab a card from thin air. they grab it from a pre-shuffled deck.

DeanWhitehouse · December 27, 2008

Because that would be a waste of time and resources.

DarkSuperHero · December 27, 2008

i'll rewrite the script, and do what i'm trying to explain... :-) anyways ill post it tomorrow sometime, but for now I have other things i need to attend to :-).... ill see ya tomorrow... :-P ::)

DeanWhitehouse · December 28, 2008

<?php
//Blackjack.php
ob_start();
session_start();

$card_10 = array(10,11,12,13);
$card_type = array("c","d","h","s");

shuffle($card_type);

shuffle($card_10);
if(isset($_GET['reset']))
{
for($i = 1;$i <= $_SESSION['player_count'];$i++)
{
	unset($_SESSION['player_'.$i]);
	unset($_SESSION['card_p_'.$i]);
}

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	unset($_SESSION['comp_'.$i]);
	unset($_SESSION['card_c_'.$i]);
}

unset($_SESSION['comp_count']);
unset($_SESSION['player_count']);

header("Location:test.php");
}

if(!isset($_SESSION['player_1']) || !isset($_SESSION['comp_1']))
{
$_SESSION['player_1'] = rand(1,10);
$_SESSION['card_p_1'] = $card_type[rand(0,3)];
$_SESSION['player_2'] = rand(1,10);	
$_SESSION['card_p_2'] = $card_type[rand(0,3)];

$_SESSION['comp_1'] = rand(1,10);
$_SESSION['card_c_1'] = $card_type[rand(0,3)];
$_SESSION['comp_2'] = rand(1,10);
$_SESSION['card_c_2'] = $card_type[rand(0,3)];

$_SESSION['comp_count'] = 2;
$_SESSION['player_count'] = 2;
}

echo "<br>Player<br>";

for($i = 1;$i <= $_SESSION['player_count'];$i++)
{
if($_SESSION['player_'.$i] == 10)
{
	$img = $card_10[rand(0,2)];
}
else
	$img = $_SESSION['player_'.$i];

	$type = $_SESSION['card_p_'.$i];
?>
<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
<?php
$cards[] = $_SESSION['player_'.$i];
}

echo "Total: ".array_sum($cards);

echo "<br>Computer<br>";

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
$comp[] = $_SESSION['comp_'.$i];
}


if(isset($_GET['hit']))
{
if(array_sum($comp) < 17)
{
	$_SESSION['comp_count'] += 1;
	$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
	$_SESSION['card_c_'.$_SESSION['comp_count']] = $card_type[rand(0,3)];
}
$_SESSION['player_count'] += 1;
$_SESSION['player_'.$_SESSION['player_count']] = rand(1,10);
$_SESSION['card_p_'.$_SESSION['player_count']] = $card_type[rand(0,3)];
header("Location:test.php");
}

if(isset($_GET['stick']))
{
if(array_sum($comp) < 17)
{
	$_SESSION['comp_count'] += 1;
	$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
	$_SESSION['card_c_'.$_SESSION['comp_count']] = $card_type[rand(0,3)];
	header("Location:test.php?stick");		
}

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	if($_SESSION['comp_'.$i] == 10)
	{
		$img = $card_10[rand(0,2)];
	}
	else
		$img = $_SESSION['comp_'.$i];

	$type = $_SESSION['card_c_'.$i];


	?>
	<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
	<?php
}	

if(array_sum($cards) == array_sum($comp))
	echo "<br>Draw";
elseif(array_sum($cards) == 21 || array_sum($comp) > 21 || array_sum($cards) > array_sum($comp) && array_sum($comp) < 22 && array_sum($comp) != 21 && array_sum($cards) != 21 && array_sum($cards) < 22)
	echo "<br>You win";
else
	echo "<br>You loose";	
}
else
{	
echo "<br>";

if(array_sum($cards) == 21 || array_sum($comp) > 21 || in_array(1,$cards) && in_array(10,$cards) && array_sum($cards) < 22)
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($_SESSION['comp_'.$i] == 10)
		{
			$img = $card_10[rand(0,2)];
		}
		else
			$img = $_SESSION['comp_'.$i];

		$type = $_SESSION['card_c_'.$i];

		?>
		<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
		<?php
	}
	echo "<br>You Win";			
}
elseif(array_sum($cards) > 21 || array_sum($comp) == 21 || in_array(1,$comp) && in_array(10,$comp) && array_sum($comp) < 22)
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($_SESSION['comp_'.$i] == 10)
		{
			$img = $card_10[rand(0,2)];
		}
		else
			$img = $_SESSION['comp_'.$i];

		$type = $_SESSION['card_c_'.$i];

		?>
		<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
		<?php
	}	

	echo "<br>You Loose";
}
else
{
	for($i = 1;$i <= $_SESSION['comp_count'];$i++)
	{
		if($i == 1)
		{
			if($_SESSION['comp_'.$i] == 10)
			{
				$img = $card_10[rand(0,2)];
			}
			else
				$img = $_SESSION['comp_'.$i];

			$type = $_SESSION['card_c_'.$i];

			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
			<?php
		}
		else
		{
			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/cardback.gif">
			<?php		
		}
	}
}
}
?>
<br>
<a href="?hit">Hit</a>
<a href="?reset">Reset</a>
<a href="?stick">Stick</a><br>

Now saves the card suite, but not what 10 is worth (either 10, king, queen or jack).

Any ideas?

DeanWhitehouse · December 28, 2008

Sorry to keep confusing people, but same problem , updated code

<?php
//Blackjack.php
ob_start();
session_start();

$card_10 = array(10,11,12,13);
$card_type = array("c","d","h","s");

shuffle($card_type);

shuffle($card_10);

if(!isset($_SESSION['done']))
{
//this is where the winnings will be done
}

if(!isset($_SESSION['player_1']) || !isset($_SESSION['comp_1']))
{
$_SESSION['player_1'] = rand(1,10);
$_SESSION['card_p_1'] = $card_type[rand(0,3)];
$_SESSION['player_2'] = rand(1,10);	
$_SESSION['card_p_2'] = $card_type[rand(0,3)];

$_SESSION['comp_1'] = rand(1,10);
$_SESSION['card_c_1'] = $card_type[rand(0,3)];
$_SESSION['comp_2'] = rand(1,10);
$_SESSION['card_c_2'] = $card_type[rand(0,3)];

$_SESSION['comp_count'] = 2;
$_SESSION['player_count'] = 2;
}


if(isset($_GET['reset']))
{
unset($_SESSION['done']);
if(isset($_SESSION['player_count']))
{
	for($i = 1;$i <= $_SESSION['player_count'];$i++)
	{
		unset($_SESSION['player_'.$i]);
		unset($_SESSION['card_p_'.$i]);
	}
	unset($_SESSION['player_count']);
}

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	unset($_SESSION['comp_'.$i]);
	unset($_SESSION['card_c_'.$i]);
}

unset($_SESSION['comp_count']);

header("Location:test.php");
}

echo "<br>Player<br>";

for($i = 1;$i <= $_SESSION['player_count'];$i++)
{
	if($_SESSION['player_'.$i] == 10)
	{
		$img = $card_10[rand(0,2)];
	}
	else
		$img = $_SESSION['player_'.$i];

		$type = $_SESSION['card_p_'.$i];
	?>
	<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
	<?php
	$cards[] = $_SESSION['player_'.$i];
}

echo "Total: ".array_sum($cards);

echo "<br>Computer<br>";

for($i = 1;$i <= $_SESSION['comp_count'];$i++)
{
	$comp[] = $_SESSION['comp_'.$i];
}


if(isset($_GET['hit']) && !isset($_SESSION['done']))
{
	if(array_sum($comp) < 17)
	{
		$_SESSION['comp_count'] += 1;
		$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
		$_SESSION['card_c_'.$_SESSION['comp_count']] = $card_type[rand(0,3)];
	}
	$_SESSION['player_count'] += 1;
	$_SESSION['player_'.$_SESSION['player_count']] = rand(1,10);
	$_SESSION['card_p_'.$_SESSION['player_count']] = $card_type[rand(0,3)];
	header("Location:test.php");
}

if(isset($_GET['stick']))
{
		if(array_sum($comp) < 17)
		{
			$_SESSION['comp_count'] += 1;
			$_SESSION['comp_'.$_SESSION['comp_count']] = rand(1,10);
			$_SESSION['card_c_'.$_SESSION['comp_count']] = $card_type[rand(0,3)];
			header("Location:test.php?stick");		
		}
		for($i = 1;$i <= $_SESSION['comp_count'];$i++)
		{
			if($_SESSION['comp_'.$i] == 10)
			{
				$img = $card_10[rand(0,2)];
			}
			else
				$img = $_SESSION['comp_'.$i];

			$type = $_SESSION['card_c_'.$i];


			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
			<?php
		}	

	if(array_sum($cards) == array_sum($comp))
		echo "<br>Draw";
	elseif(array_sum($cards) == 21 || array_sum($comp) > 21 || array_sum($cards) > array_sum($comp) && array_sum($comp) < 22 && array_sum($comp) != 21 && array_sum($cards) != 21 && array_sum($cards) < 22)
	{
		echo "You Win";
		$_SESSION['done'] = true;
	}
	else
	{
		echo "You Loose";
		$_SESSION['done'] = true;
	}
}
else
{	
	echo "<br>";

	if(array_sum($cards) == 21 || array_sum($comp) > 21 || in_array(1,$cards) && in_array(10,$cards) && array_sum($cards) == 11 && array_sum($cards) < 22)
	{
		for($i = 1;$i <= $_SESSION['comp_count'];$i++)
		{
			if($_SESSION['comp_'.$i] == 10)
			{
				$img = $card_10[rand(0,2)];
			}
			else
				$img = $_SESSION['comp_'.$i];

			$type = $_SESSION['card_c_'.$i];

			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
			<?php
		}
		echo "You Win";
		$_SESSION['done'] = true;
	}
	elseif(array_sum($cards) > 21 || array_sum($comp) == 21 || in_array(1,$comp) && in_array(10,$comp) && array_sum($comp) < 22 && array_sum($comp) == 11)
	{
		for($i = 1;$i <= $_SESSION['comp_count'];$i++)
		{
			if($_SESSION['comp_'.$i] == 10)
			{
				$img = $card_10[rand(0,2)];
			}
			else
				$img = $_SESSION['comp_'.$i];

			$type = $_SESSION['card_c_'.$i];

			?>
			<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
			<?php
		}	
		$_SESSION['done'] = true;
		echo "You Loose";
	}
	else
	{
		for($i = 1;$i <= $_SESSION['comp_count'];$i++)
		{
			if($i == 1)
			{
				if($_SESSION['comp_'.$i] == 10)
				{
					$img = $card_10[rand(0,2)];
				}
				else
					$img = $_SESSION['comp_'.$i];

				$type = $_SESSION['card_c_'.$i];

				?>
				<img src="http://gangster.game-design.djw-designs.com/images/Cards/<?=$img."-".$type?>.gif">
				<?php
			}
			else
			{
				?>
				<img src="http://gangster.game-design.djw-designs.com/images/Cards/cardback.gif">
				<?php		
			}
		}
	}
}
?>
<br>
<?php	
if(!isset($_SESSION['done']))
{
?>
<a href="?hit">Hit</a>
<a href="?stick">Stick</a>
<?php
}
?>
<a href="?reset">Reset</a>

Mikedean · December 29, 2008

This is how I would do it. It is only made for 1 player at the moment, but I'm sure you will see what I did .

<?php

session_start();

// 0 - Clubs
// 1 - Diamonds
// 2 - Hearts
// 3 - Spades

function shuffleCards()
{

	$cardTypes[0] = "";
	$cardTypes[1] = "";
	$cardTypes[2] = "";
	$cardTypes[3] = "";

	for( $n = 0; $n < 4; $n++ )
	{
		$strCards = "1,2,3,4,5,6,7,8,9,10,11,12,13";
		$cardTypes[ $n ] = explode( ",", $strCards );

		shuffle( $cardTypes[ $n ] );			
	}

	return $cardTypes;

}

function removeCard( $deck, $card )
{		
	if( $card != count( $deck ) )
	{
		for( $i = $card; $i < count( $deck ); $i++ )
		{
			$nextNum = $i + 1;
			$deck[ $i ] = $deck[ $i + 1 ];
		}
	}

	unset( $deck[ count( $deck ) - 1 ] );

	return $deck;
}

function getDeck( $deck )
{
	switch( $deck )
	{
		case 0:
			return "Clubs";
			break;
		case 1:
			return "Diamonds";
			break;
		case 2:
			return "Hearts";
			break;
		case 3:
			return "Spades";
			break;
	}
}

function getCardName( $card )
{
	if ( $card == 1 )
		return "Ace";
	elseif ( $card == 11 )
		return "Jack";
	elseif ( $card == 12 )
		return "Queen";
	elseif ( $card == 13 ) 
		return "King";
	else 
	return $card;
}

if( !isset( $_SESSION[ 'deck' ] ) )	
$arrCards = shuffleCards();
else
$arrCards = $_SESSION[ 'deck' ];

echo "<h1>Player</h1>";

$arrPlayer[ 0 ] = $_SESSION[ 'player1' ];

if( !isset( $arrPlayer[ 0 ] ) )
{

for( $i = 0; $i < 2; $i++ )
{

	$deck = rand( 0, 3 );
	$card = rand( 0, count( $arrCards[ $deck ] ) - 1 );

	$num = count( $arrPlayer[ 0 ] );

	$arrPlayer[ 0 ][ $num ][ "deck" ] = $deck;
	$arrPlayer[ 0 ][ $num ][ "card" ] = $arrCards[ $deck ][ $card ];

	$arrCards[ $deck ] = removeCard( $arrCards[ $deck ], $card );

}

}

for( $i = 0; $i < count( $arrPlayer[ 0 ] ); $i++ )
{
echo $i+1 . "<br />";
echo "Deck: " . getDeck( $arrPlayer[ 0 ][ $i ][ "deck" ] ) . "<br />" ;
echo "Card: " . getCardName( $arrPlayer[ 0 ][ $i ][ "card" ] ) . "<br />";
}

$_SESSION[ 'player1' ] = $arrPlayer[ 0 ];
$_SESSION[ 'deck' ] = $arrCards;
?>

Basically, you shuffle the cards only if the session isn't set and it also removes the card meaning it cannot be used again.

Take a look, use and abuse it, but I'm sure this will set you in the right direction. I'm probably going to continue to write this myself, so if you get stuck, I'll have a working version soon .

P.S. I changed how I was coding it half way through, so it might look a bit different in places... Tiredness sucks!

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[SOLVED] Blackjack / 21

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