Online PHP editor | output for iY5Qu

@ 2018-06-19T11:12:15Z

<?php

declare (strict_types=1);

final class Position
{
    private $row;
    private $column;

    public function __construct(int $row, int $column)
    {
        $this->row = $row;
        $this->column = $column;
    }

    public function is(Position $position) : bool
    {
        return $this->row === $position->row && $this->column === $position->column;
    }
}

final class Tile
{
    private $position;
    private $clicked;

    public function __construct(Position $position)
    {
        $this->position = $position;
        $this->clicked = false;
    }

    public static function clicked(Position $position) : self
    {
        $tile = new self($position);
        $tile->clicked = true;

        return $tile;
    }

    public function position() : Position
    {
        return $this->position;
    }

    public function click() : self
    {
        if ($this->isClicked()) {
            throw new \RuntimeException('Tile can\'t be clicked twice');
        }

        var_dump(self::clicked($this->position));
        return self::clicked($this->position);
    }
    
    public function isClicked() : bool
    {
        return $this->clicked;
    }
}

final class Tiles
{
    /**
     * @var Tile[]
     */
    private $tiles;

    public function __construct(Tile ...$tiles)
    {
        $this->tiles = $tiles;
    }

    public function count() : int
    {
        return \count($this->tiles);
    }

    public function hasMoreThan(Position $position, int $expectedLimit) : bool
    {
        return $this->find(
            function(Tile $tile) use ($position) {
                return $tile->position()->is($position);
            }
        )->count() > $expectedLimit;
    }

    public function each(callable $callback) : void
    {
        array_map($callback, $this->tiles);
    }

    public function find(callable $callback) : Tiles
    {
        return new Tiles(...array_filter(
            $this->tiles,
            $callback
        ));
    }
    
    public function map(callable $callback) : array
    {
        return array_map($callback, $this->tiles);
    }
    
    public function has(Position $position) : bool
    {
        return (bool) $this->find(
                function(Tile $tile) use ($position) {
                    return $tile->position()->is($position);
                }
            )->count();
    }
    
    public function clickedCount() : int
    {
        return (int) array_reduce(
            $this->tiles,
            function(int $clicked, Tile $nextTile) {
                return $nextTile->isClicked() ? $clicked + 1 : $clicked;
            },
            0
        );
    }
}

final class Board
{
    /**
     * @var Tiles
     */
    private $tiles;

    public function __construct(Tiles $tiles)
    {
        $tiles->each(function(Tile $tile) use ($tiles) {
            if ($tiles->hasMoreThan($tile->position(), 1)) {
                throw new \RuntimeException('Board can have only tile at each position');
            }
        });

        $this->tiles = $tiles;
    }

    public function click(Position $position) : void
    {
        if (!$this->tiles->has($position)) {
            throw new \RuntimeException('Tile does not exists');
        }
        
        $this->tiles = new Tiles(...$this->tiles->map(function(Tile $tile) use ($position) {
            return $tile->position()->is($position) 
                ? $tile->click()
                : $tile;
        }));     
    }
    
    public function score() : int
    {
        return $this->tiles->clickedCount();
    }
}

$board = new Board(new Tiles(
    new Tile(new Position(0, 0)),
    new Tile(new Position(0, 1)),
    new Tile(new Position(0, 2)),
    new Tile(new Position(0, 3)),
    new Tile(new Position(0, 4)),
    new Tile(new Position(0, 5))
    
));

$board->click(new Position(0, 0));
$board->click(new Position(0, 1));
$board->click(new Position(0, 2));
$board->click(new Position(0, 3));
$board->click(new Position(0, 4));
$board->click(new Position(0, 5));

print "\n";
Board::clicked(new Position(0, 0));

var_dump($board->score());

Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: object(Tile)#18 (2) { ["position":"Tile":private]=> object(Position)#4 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(0) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#16 (2) { ["position":"Tile":private]=> object(Position)#6 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(1) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#2 (2) { ["position":"Tile":private]=> object(Position)#8 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(2) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#17 (2) { ["position":"Tile":private]=> object(Position)#10 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(3) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#3 (2) { ["position":"Tile":private]=> object(Position)#12 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(4) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#5 (2) { ["position":"Tile":private]=> object(Position)#14 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(5) } ["clicked":"Tile":private]=> bool(true) } Fatal error: Uncaught Error: Call to undefined method Board::clicked() in /in/iY5Qu:182 Stack trace: #0 {main} thrown in /in/iY5Qu on line 182
Process exited with code 255.
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 object(Tile)#18 (2) { ["position":"Tile":private]=> object(Position)#4 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(0) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#16 (2) { ["position":"Tile":private]=> object(Position)#6 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(1) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#2 (2) { ["position":"Tile":private]=> object(Position)#8 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(2) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#17 (2) { ["position":"Tile":private]=> object(Position)#10 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(3) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#3 (2) { ["position":"Tile":private]=> object(Position)#12 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(4) } ["clicked":"Tile":private]=> bool(true) } object(Tile)#5 (2) { ["position":"Tile":private]=> object(Position)#14 (2) { ["row":"Position":private]=> int(0) ["column":"Position":private]=> int(5) } ["clicked":"Tile":private]=> bool(true) } Fatal error: Uncaught Error: Call to undefined method Board::clicked() in /in/iY5Qu:182 Stack trace: #0 {main} thrown in /in/iY5Qu on line 182
Process exited with code 255.
Output for 7.0.0 - 7.0.33: Fatal error: Uncaught TypeError: Return value of Tiles::each() must be an instance of void, none returned in /in/iY5Qu:91 Stack trace: #0 /in/iY5Qu(140): Tiles->each(Object(Closure)) #1 /in/iY5Qu(170): Board->__construct(Object(Tiles)) #2 {main} thrown in /in/iY5Qu on line 91
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Warning: Unsupported declare 'strict_types' in /in/iY5Qu on line 3 Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/iY5Qu on line 16
Process exited with code 255.

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