RoYaL The Bored One

<?php
//$input = "25|1:1|MLSM MLFL LPPF LPSS";
$input = fgets(STDIN);

// player variables
$boredom = 20;
// get the drunkness from the input
$drunkness = strtok($input, "|");
// get the position from the input
$position = strtok("|");

// convert the XXXX XXXX XXXX XXXX to an 2D array
$magicMatrix[0] = strtok("|");
$magicMatrix[0] = strtok($magicMatrix[0]," ");
$magicMatrix[1] = strtok(" ");
$magicMatrix[2] = strtok(" ");
$magicMatrix[3] = strtok(" ");

$magicMatrix[0] = str_split($magicMatrix[0]);
$magicMatrix[1] = str_split($magicMatrix[1]);
$magicMatrix[2] = str_split($magicMatrix[2]);
$magicMatrix[3] = str_split($magicMatrix[3]);

// convert 1:1 position to an array
$royal_pos[0] = strtok($position, ":");
$royal_pos[1] = strtok(":");

//gameplay variables
$game_end = false;
$last_magic = ""; // P, M, L, S, F
$direction = true; // true = Up, false = Down
$cornerEnd = false;

// Play the game
while(!$game_end)
{
    // Check for magic trick
    // ---------------------------------------------------------------------------------------------------------
    switch($magicMatrix[$royal_pos[0]][$royal_pos[1]])
    {
        case "P": {
            $boredom += $last_magic == "P" ? (5 + ((5/100) * $drunkness)) * 2 : (5 + ((5/100) * $drunkness));
            $last_magic = "P";
            break;
            }
        case "M": {
            $boredom += $last_magic == "M"? (10 + ((10/100) * $drunkness)) * 2 : (10 + ((10/100) * $drunkness));
            $last_magic = "M";
            break;
            }
        case "L": {
            $boredom += $last_magic == "L" ? (7 + ((7/100) * $drunkness)) * 2 : (7 + ((7/100) * $drunkness));
            $last_magic = "L";
            break;
            }
        case "S": {
            $boredom -= $last_magic == "S" ? (5 + ((5/100) * $drunkness)) * 2 : (5 + ((5/100) * $drunkness));
            $last_magic = "S";
            break;}
        case "F": {
            $boredom -= $last_magic == "F" ? (15 + ((15/100) * $drunkness)) * 2 : (15 + ((15/100) * $drunkness));
            $last_magic = "F";
            break;}
        default : break;
    }
    // ---------------------------------------------------------------------------------------------------------

    // Check for game end
    // ---------------------------------------------------------------------------------------------------------
    if($boredom <= 0)
    {
        echo "<p>Angel succeeded RoYaL is asleep</p>";
        $game_end = true;
    }elseif($boredom >= 100)
    {
        echo "<p>RoYaL went mad and killed Angel at " . $royal_pos[0] . ":" . $royal_pos[1] . "</p>";
        $game_end = true;
    }

    if($cornerEnd)
    {
        echo "<p>Angel succeeded RoYaL is asleep</p>";
        $game_end = true;
    }
    // ---------------------------------------------------------------------------------------------------------

    //moving the royal
    // ---------------------------------------------------------------------------------------------------------
    if(!$game_end)
    {
        if($direction)
        {
            // moving upward
            if($royal_pos[0] > 0)
            {
                $royal_pos[0] -= 1;
            }
            elseif($royal_pos[1] > 0)
            {
                $royal_pos[1] -= 1;
                $direction = false;
            }
            else
            {
                // game ends at {0:0}
                $cornerEnd = true;
            }
        }
        else
        {
            // moving downward
            if($royal_pos[0] < 3)
            {
                $royal_pos[0] += 1;
            }
            elseif($royal_pos[1] > 0)
            {
                $royal_pos[1] -= 1;
                $direction = true;
            }
            else
            {
                // game ends at {3:0}
                $cornerEnd = true;
            }
        }
    }
    // ---------------------------------------------------------------------------------------------------------
}