public function renderVisibleSprites()
{
foreach ($this->sprites as $sprite) {
if ($sprite->isVisible()) {
$this->frameBuffer->drawBitmapAt($sprite->getBitmap(), $sprite->getX(), $sprite->getY());
}
}
}
public function onFrameUpdate()
{
$now = time();
if ($now > $this->previousTime) {
$this->currentFrameIndex = ($this->currentFrameIndex + 1) % count($this->frames);
$this->frameBuffer->setBackgroundFrame($this->frames[$this->currentFrameIndex]);
}
$this->previousTime = $now;
}
public function __construct(FrameBuffer $frameBuffer)
{
$this->width = $frameBuffer->getWidth();
$this->height = $frameBuffer->getHeight();
// need room for each pixel as a char, and newlines between them
$encodedSize = $this->height * ($this->width + 1) - 1;
$this->blankEncodedFrame = str_repeat(self::ENCODED_PIXEL_OFF, $encodedSize);
for ($i = $this->width; $i < $encodedSize; $i += $this->width + 1) {
$this->blankEncodedFrame[$i] = "\n";
}
$this->colorCharMap = array_flip(BitmapLoader::$colorMap);
}
function onFrameUpdate(TimerInterface $timer)
{
$utime = microtime(true);
$time = (int) $utime;
$ms = (int) (($utime - $time) * 1000);
// printf("== frameupdate: %s.%03d\n", strftime('%H:%M:%S', $time), $ms);
$this->gameLoop->onFrameUpdate();
$frame = $this->frameBuffer->getAndSwitchFrame();
$encodedFrameCache = [];
foreach ($this->connections as $conn) {
/** @var PlayerConnection $playerConnection */
$playerConnection = $this->connections[$conn];
if (!$playerConnection->isOutputEnabled()) {
continue;
}
$encoder = $playerConnection->getFrameEncoder();
$key = get_class($encoder);
if (!isset($encodedFrameCache[$key])) {
$encodedFrameCache[$key] = $playerConnection->getFrameEncoder()->encodeFrame($frame);
}
// printf("message: %s\n", $encodedFrameCache[$key]);
if ($encodedFrameCache[$key]) {
// the encoded frame may be null if there are no changes
$conn->send($encodedFrameCache[$key]);
}
}
}
protected function initializeGame(FrameBuffer $frameBuffer)
{
$this->background = $this->bitmapLoader->loadBitmap('main_game');
$this->displayHeight = $frameBuffer->getHeight();
$this->displayWidth = $frameBuffer->getWidth();
$this->paddles = [self::LEFT => $this->bitmapLoader->loadSprite('paddle'), self::RIGHT => $this->bitmapLoader->loadSprite('paddle')];
$this->addSprite($this->paddles[self::LEFT]);
$this->addSprite($this->paddles[self::RIGHT]);
$this->paddleHeight = $this->paddles[self::LEFT]->getBitmap()->getHeight();
$this->paddleWidth = $this->paddles[self::LEFT]->getBitmap()->getWidth();
$this->paddleMinY = self::FRAME_EDGE_SIZE;
$this->paddleMaxY = $this->displayHeight - $this->paddleHeight - self::FRAME_EDGE_SIZE;
$this->ball = $this->bitmapLoader->loadSprite('ball');
$this->addSprite($this->ball);
$this->ballHeight = $this->ball->getBitmap()->getHeight();
$this->ballWidth = $this->ball->getBitmap()->getWidth();
self::$paddlePosX[self::RIGHT] = $this->displayWidth - 1.0 - $this->paddleWidth;
$this->ballPaddleLimitX = [self::LEFT => (double) (self::$paddlePosX[self::LEFT] + $this->paddleWidth), self::RIGHT => (double) (self::$paddlePosX[self::RIGHT] - $this->paddleWidth)];
$this->ballEdgeLimitY = [self::TOP => 1.0, self::BOTTOM => (double) ($this->displayHeight - $this->ballHeight)];
$this->frameTimestamp = microtime(true);
$this->gameState = self::GAMESTATE_INITIALIZING;
}
/**
* @param FrameBuffer $frameBuffer
* @return string
*/
public function encodeFrameInfo(FrameBuffer $frameBuffer)
{
return json_encode(['frameInfo' => ['width' => $frameBuffer->getWidth(), 'height' => $frameBuffer->getHeight(), 'palette' => Color::getPalette()]]);
}