Dragon-Knight/src/explore.php

<?php

// explore.php :: Handles all map exploring, chances to fight, etc.

function move()
{
    global $userrow, $controlrow;

    if ($userrow["currentaction"] == "Fighting") { redirect('/fight'); }

    $latitude = $userrow["latitude"];
    $longitude = $userrow["longitude"];
    if (isset($_POST["north"])) { $latitude++; if ($latitude > $controlrow["gamesize"]) { $latitude = $controlrow["gamesize"]; } }
    if (isset($_POST["south"])) { $latitude--; if ($latitude < ($controlrow["gamesize"]*-1)) { $latitude = ($controlrow["gamesize"]*-1); } }
    if (isset($_POST["east"])) { $longitude++; if ($longitude > $controlrow["gamesize"]) { $longitude = $controlrow["gamesize"]; } }
    if (isset($_POST["west"])) { $longitude--; if ($longitude < ($controlrow["gamesize"]*-1)) { $longitude = ($controlrow["gamesize"]*-1); } }

	$town = get_town_by_xy($longitude, $latitude);
    if ($town !== false) {
        require_once __DIR__ . '/towns.php';
        travelto($town['id'], false);
        return;
    }

    $chancetofight = rand(1, 5);
	$action = $chancetofight === 1 ? "currentaction='Fighting', currentfight='1'," : "currentaction='Exploring',";

	db()->query("UPDATE users SET $action latitude = ?, longitude = ?, dropcode = 0 WHERE id = ?;", [$latitude, $longitude, $userrow['id']]);
    redirect('/');
}