/**
* Checks if coordinates are inside the field
*
* @param Coords $coords
* @return bool
*/
public function has(Coords $coords)
{
$x = $coords->x();
if ($x < 0 || $x >= $this->width) {
return false;
}
$y = $coords->y();
if ($y < 0 || $y >= $this->height) {
return false;
}
return true;
}
/**
* @param int $width
* @param int $height
* @param array $shipSizes
* @return Fields
*/
public static function generate($width, $height, array $shipSizes)
{
Assertion::integer($width);
Assertion::integer($height);
Assertion::allInteger($shipSizes);
$elements = [];
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$elements[] = Field::generate($x, $y);
}
}
$fields = Fields::create($elements);
foreach ($shipSizes as $shipSize) {
$attempts = 0;
while (true) {
if ($attempts == static::MAX_ATTEMPTS) {
throw new CannotPlaceShipOnGridException();
}
$direction = mt_rand(0, 1) == 0 ? 'right' : 'below';
$spot = Coords::create(mt_rand(0, $width - 1), mt_rand(0, $height - 1));
$endPoint = static::validEndpoint($fields, $spot, $shipSize, $direction);
if ($endPoint === null) {
$attempts++;
continue;
}
// If we end up here the ship can fit at the determined spot
$fields->place(Ship::create($spot, $endPoint));
break;
}
}
return $fields;
}
/**
* @test
*/
public function it_should_win_the_game_when_all_ships_have_sunk()
{
$game = Game::create(1, 2, [2]);
$result = $game->fire(Coords::fromArray(['x' => 0, 'y' => 0]));
$this->assertFalse($result->isWon());
$result = $game->fire(Coords::fromArray(['x' => 0, 'y' => 1]));
$this->assertTrue($result->isWon());
}
/**
* @param Coords $coords
* @return bool
*/
public function on(Coords $coords)
{
if ($coords->x() == $this->startPoint->x() && $coords->y() >= $this->startPoint->y() && $coords->y() <= $this->endPoint->y()) {
return true;
}
if ($coords->y() == $this->startPoint->y() && $coords->x() >= $this->startPoint->x() && $coords->x() <= $this->endPoint->x()) {
return true;
}
return false;
}
/**
* @param array $fireResult
*
* @return static
*/
public static function fromArray(array $fireResult)
{
return new static($fireResult['result'], Coords::fromArray($fireResult['target']), array_key_exists('x', $fireResult['startPoint']) ? Coords::fromArray($fireResult['startPoint']) : null, array_key_exists('y', $fireResult['endPoint']) ? Coords::fromArray($fireResult['endPoint']) : null);
}
/**
* @param Coords $coords
* @return boolean
*/
public function at(Coords $coords)
{
return $this->coords->equals($coords);
}
/**
* fire on $location
* @param string $location
* @return string
*/
private function fire($location)
{
$identifier = GameIdentifier::fromString($this->id());
$game = $this->repository()->get($identifier);
$coordElements = explode('.', $location);
$coords = Coords::create((int) $coordElements[0], (int) $coordElements[1]);
$result = $game->fire($coords);
$this->repository()->save($game);
echo 'Firing on ' . $location . ' in game: ' . $game->id() . PHP_EOL;
echo (string) $game;
return $result;
}
/**
* Retrieve the coords a specified distance below these coords.
*
* @param int $distance
*
* @return Coords
*/
public function below($distance)
{
return Coords::create($this->x(), $this->y() + $distance);
}
<?php
require __DIR__ . '/vendor/autoload.php';
$game = Wecamp\FlyingLiquorice\Domain\Game::create(10, 10);
echo $game;
while (true) {
try {
$game->fire(\Wecamp\FlyingLiquorice\Domain\Game\Coords::create(mt_rand(0, 9), mt_rand(0, 9)));
} catch (Wecamp\FlyingLiquorice\Domain\Game\FieldAlreadyBeenShotException $e) {
// Ignore
} catch (Wecamp\FlyingLiquorice\Domain\Game\GameIsLockedException $e) {
// Won the game
break;
}
}
echo $game;
