This is the heart of our game—the update method:
We will update the puck's velocity with a little friction applied to its vector (
0.98f). We will store what its next position will be at the end of the iteration, if no collision occurred:void GameLayer::update (float dt) { auto ballNextPosition = _ball->getNextPosition(); auto ballVector = _ball->getVector(); ballVector *= 0.98f; ballNextPosition.x += ballVector.x; ballNextPosition.y += ballVector.y;Next comes the collision. We will check collisions with each player sprite and the ball:
float squared_radii = pow(_player1->radius() + _ball->radius(), 2); for (auto player : _players) { auto playerNextPosition = player->getNextPosition(); auto playerVector = player->getVector(); float diffx = ballNextPosition.x - player->getPositionX(); float diffy = ballNextPosition.y - player->getPositionY(); float distance1 = pow(diffx, 2) + pow(diffy,...