
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<link rel="stylesheet" href="perch.css" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="Itsacon" />
<meta name="generator" content="Notepad++, Vim" />
<meta name="robots" content="noindex,nofollow" />

<link rel="shortcut icon" href="IIP.png" />
<title>TheDailyWTF - Knock me off my perch</title>
</head>
<body>

<?php

echo "<div>\n<form method=\"post\" action=\"".$_SERVER['PHP_SELF']."\">\n";
echo "<input type=\"text\" name=\"tables\" value=\"".(isset($_POST['tables']) ? $_POST['tables'] : '4')."\" /> Number of tables<br />\n";
echo "<input type=\"text\" name=\"cash\" value=\"".(isset($_POST['cash']) ? $_POST['cash'] : '10')."\" /> Starting Cash<br />\n";
echo "<input type=\"text\" name=\"target\" value=\"".(isset($_POST['target']) ? $_POST['target'] : '400')."\" /> Target<br />\n";
echo "<input type=\"submit\" name=\"submit\" value=\"Go\" />\n</form>\n</div>\n";

if(isset($_POST['submit']))
{
    $run = new perch(intval($_POST['cash']), intval($_POST['target']), intval($_POST['tables']));
    echo "<div>\n";
    $run->go();
    echo "</div>\n";
}

class spinResult
{
    protected $colour;
    protected $value;
    public function __construct($colour, $value)
    {
        $this->colour = $colour;
        $this->value = $value;
    }
    
    public function getColour()
    {
        return $this->colour;
    }
    
    public function getValue()
    {
        return $this->value;
    }
}

abstract class rouletteWheel
{
    private $wheelValues;
    private $wheelColours;
    
    final public function __construct()
    {
        $this->wheelValues = $this->initFieldValues();
        $this->wheelColours = $this->initFieldColours();
        
        #####    Sanity check
        assert(count($this->wheelColours) == count($this->wheelValues));
    }
    
    abstract protected function initFieldValues();
    
    abstract protected function initFieldColours();
    
    final public function getFieldCount()
    {
        return count($this->wheelValues);
    }
    
    final public function getFieldValue($index)
    {
        if($index < 0 || $index > count($this->wheelValues))
        {
            throw new Exception("Illegal index");
        }
        else
        {
            return $this->wheelValues[$index];
        }
    }
    
    final public function getFieldColour($index)
    {
        if($index < 0 || $index > count($this->wheelColours))
        {
            throw new Exception("Illegal index");
        }
        else
        {
            return $this->wheelColours[$index];
        }
    }
}

class americanWheel extends rouletteWheel
{
    protected function initFieldValues()
    {
        return array(
        '00',
        '2',
        '14',
        '35',
        '23',
        '4',
        '16',
        '33',
        '21',
        '6',
        '18',
        '31',
        '19',
        '8',
        '12',
        '29',
        '25',
        '10',
        '27',
        '0',
        '1',
        '13',
        '36',
        '24',
        '3',
        '15',
        '34',
        '22',
        '5',
        '17',
        '32',
        '20',
        '7',
        '11',
        '30',
        '26',
        '9',
        '28');
    }
    
    protected function initFieldColours()
    {
        return array(
        'g',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'g',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b',
        'r',
        'b');
    }    

}

class rouletteTable
{
    protected $wheel;
    public function __construct($type = 'american')
    {
        switch($type)
        {
            case 'american':
            default:
                $this->wheel = new americanWheel();
        }
    }
    
    public function spin()
    {
        $field = mt_rand(0, ($this->wheel->getFieldCount() - 1));
        return new spinResult($this->wheel->getFieldColour($field), $this->wheel->getFieldValue($field));
    }
    
    
}
    

class casino
{
    private $tables = array();
    private $lastResults = array();
    
    public function __construct($tables, $country = 'american')
    {
        for($i = 0; $i < $tables; $i++)
        {
            $this->tables[$i] = new rouletteTable($country);
        }
    }
    
    public function getTableCount()
    {
        return count($this->tables);
    }
    
    public function play()
    {
        for($i = 0; $i < count($this->tables); $i++)
        {
            $this->lastResults[$i] = $this->tables[$i]->spin();
        }
    }
    
    public function getLastResult($table)
    {
        if($table < 0 || $table > count($this->lastResults))
        {
            throw new Exception("Illegal table");
        }
        else
        {
            return $this->lastResults[$table];
        }
    }
}

class perch
{
    private $tableHistory = array();
    private $casino;
    private $cash;
    private $target;
    private $roundsPlayed;
    private $bets = array();
    private $betColours = array();
    private $winnings = array();
    
    public function __construct($cash, $target, $tables = 4, $country = 'american')
    {
        $this->casino = new Casino($tables, $country);
        for($i = 0; $i < $tables; $i++)
        {
            $this->tableHistory[$i] = array();
            $this->bets[$i] = 0;
            $this->betColours[$i] = '';
            $this->winnings[$i] = 0;
        }
        $this->cash = $cash;
        $this->target = $target;
    }
    
    public function go()
    {
        echo "<table>\n<tr><th rowspan=\"2\">Round</th>";
        for($i = 0; $i < $this->casino->getTableCount(); $i++)
        {
            echo "<th colspan = 3>Table ".($i + 1)."</th>";
        }
        echo "<th rowspan=\"2\">Cash</th></tr>\n<tr>";
        
        for($i = 0; $i < $this->casino->getTableCount(); $i++)
        {
            echo "<th>Bet</th><th>Result</th><th>Winnings</th>";
        }
        echo "</tr>\n";
        
        for($this->roundsPlayed = 0; $this->cash >= 10 && $this->cash < $this->target; $this->roundsPlayed++)
        {
            $this->applyLogic();
            
            $this->playRound();
            
            $this->calculateWinnings();
            
            $this->printRound();
        }

        echo "</table>\n";
        
        if($this->cash < 10)
        {
            echo "<p>You're broke.</p>\n";
        }
        elseif($this->cash >= $this->target)
        {
            echo "<p>You won!</p>\n";
        }
    
    }
    
    private function applyLogic()
    {
        if($this->roundsPlayed >= 4)
        {
            for($i = 0; $i < $this->casino->getTableCount(); $i++)
            {
                if($this->bets[$i] == 0)
                {
                    $streakLength = 4;
                    $bet = 10;
                }
                elseif($this->bets[$i] == 10)
                {
                    $streakLength = 5;
                    $bet = 15;
                }
                else
                {
                    $this->bets[$i] = 0;
                    $this->betColours[$i] = '';
                    continue;
                }
                
                if($this->cash >= $bet)
                {

                    $lastColour = $this->tableHistory[$i][$this->roundsPlayed - 1]->getColour();
                    $streak = true;
                    for($j = ($this->roundsPlayed - $streakLength); $j < ($this->roundsPlayed - 1); $j++)
                    {
                        if($this->tableHistory[$i][$j]->getColour() != $lastColour)
                        {
                            $streak = false;
                            break;
                        }
                    }
                    if($streak)
                    {
                        if($lastColour == 'r')
                        {
                            $this->betColours[$i] = 'b';
                        }
                        elseif($lastColour == 'b')
                        {
                            $this->betColours[$i] = 'r';
                        }
                        else
                        {
                            $this->betColours[$i] = '';
                            $bet = 0;
                        }
                        $this->bets[$i] = $bet;
                        $this->cash -= $bet;
                    }
                    else
                    {
                        $this->bets[$i] = 0;
                        $this->betColours[$i] = '';
                    }
                }
                else
                {
                    $this->bets[$i] = 0;
                    $this->betColours[$i] = '';
                }
            }
        }
    }
    
    private function playRound()
    {
        $this->casino->play();
            
        for($i = 0; $i < $this->casino->getTableCount(); $i++)
        {
            $this->tableHistory[$i][$this->roundsPlayed] = $this->casino->getLastResult($i);
        }
    }
    
    private function calculateWinnings()
    {
        for($i = 0; $i < $this->casino->getTableCount(); $i++)
        {
            if($this->tableHistory[$i][$this->roundsPlayed]->getColour() == $this->betColours[$i])
            {
                $this->winnings[$i] = $this->bets[$i];
                $this->cash += ($this->bets[$i] * 2);
            }
            else
            {
                $this->winnings[$i] = 0;
            }
        }
    }
    
    private function printRound()
    {
        echo "<tr><td>".($this->roundsPlayed + 1)."</td>";
        for($i = 0; $i < $this->casino->getTableCount(); $i++)
        {
            echo "<td".$this->colourClass($this->betColours[$i]).">\$".$this->bets[$i]."</td>";
            echo "<td".$this->colourClass($this->tableHistory[$i][$this->roundsPlayed]->getColour()).">".$this->tableHistory[$i][$this->roundsPlayed]->getValue()."</td>";
            echo "<td>".$this->winnings[$i]."</td>";
        }
        echo "<td>".$this->cash."</td></tr>\n";
    }
            
    private function colourClass($colour)
    {
        switch($colour)
        {
            case 'r':
                return " class=\"red\"";
                break;
            case 'b';
                return " class=\"black\"";
                break;
            case 'g';
                return " class=\"green\"";
                break;
            case '':
            default:
                return "";
        }
    }
}