zeeslag/gamefunction.inc

<?php
require_once "dbase.inc";
require_once "login.inc";

class game
{

    //properties
    protected $shipList = ['duikboot', 'torpedojager', 'kruiser', 'slagschip', 'vliegdekship'];
    public $difficulty;
    public $ammo;
    public $shotCoor = [];
    public $hitCoor = [];
    protected $hitCount = 0;
    public $gameResult = null;
    public $ships;

    //methods
    protected function setDifficulty()
    {
        if (isset($_POST['difficulty']) && $_POST['difficulty'] != "") {
            $this->difficulty = $_POST['difficulty'];
        }
    }

    protected function createShips()
    {
        $tempShips = [];
        $usedCoord = [];

        for ($i = 0; $i < 2; $i++) {
            $tempShips[] = new $this->shipList[rand(0, 4)]();
            $usedCoord[] = $tempShips[$i]->printCoord();

            //kijk na of de schepen overlappen
            if ($i > 0) {
                if (
                    $usedCoord[1][0] >= $usedCoord[0][0] &&
                    $usedCoord[1][0] <= $usedCoord[0][1] ||
                    $usedCoord[1][1] >= $usedCoord[0][0] &&
                    $usedCoord[1][1] <= $usedCoord[0][1]
                ) {
                    array_pop($tempShips);
                    array_pop($usedCoord);
                    $i--;
                }
            }
        }
        $this->ships = $tempShips;
    }

    //amount of ammo depends on difficulty
    protected function setAmmo()
    {
        if ($this->difficulty == 'easy') {
            $this->ammo = 35;
        } elseif ($this->difficulty == 'medium') {
            $this->ammo = 25;
        } elseif ($this->difficulty == 'hard') {
            $this->ammo = 15;
        }
    }

    //after shot, check if ship was hit
    public function hitCheck($shot)
    {
        $this->shotCoor[] = $shot;

        $this->ammo--;
        for ($i = 0; $i < count($this->ships); $i++) {
            $result = $this->ships[$i]->compareShot($shot);
            $this->hitCount += $result;
            if ($result == 1) {
                array_pop($this->shotCoor);
                $this->hitCoor[] = $shot;
            }
        }

        if ($this->hitCount == $this->ships[0]->printLengte() + $this->ships[1]->printLengte()) {

            $this->gameResult = 1;
            $this->saveResult();
        } elseif ($this->ammo == 0) {
            $this->gameResult = 0;
            $this->saveResult();
        }
    }

    //send result from game to db
    public function saveResult()
    {
        global $dbase;
        if ($this->gameResult == 0 || $this->gameResult == 1) {
            $dbase->insertResult();
        }
    }

    public function __construct()
    {
        $this->setDifficulty();
        $this->createShips();
        $this->setAmmo();
    }
}

// outside of game class
function gameStartup()
{
    $_SESSION["game"] = new game;
}

//check current status game(select difficulty, play game, state after win/loss)
function runGame()
{
    if (isset($_POST["difficulty"])) {
        gameStartup();
    } elseif (isset($_POST["shot"])) {
        $shot = test_input($_POST["shot"]);
        $_SESSION["game"]->hitCheck($shot);
    } elseif (isset($_SESSION["game"]) && $_SESSION["game"]->gameResult !== null) {
        unset($_SESSION["game"]);
    }
}

//check if input is usable.
function validateInput()
{
    if ((isset($_SESSION["game"]) && $_SESSION['game']->gameResult === null) && ((int)$_POST["shot"] < 0 || (int)$_POST["shot"] > $_SESSION["game"]->ships[0]->printDokLengte() - 1)) {
        return "<span class=\"errormessage\">Verkeerde input. Cijfer moet tussen 0 en " . (string)($_SESSION["game"]->ships[0]->printDokLengte() - 1) . " zijn</span>";
    } else {
        runGame();
    }
}