gistfile1.cpp

// Move a rotated sprite forward/backward
double radians = (M_PI / 180) * _player.getRotation();
float dx = std::cos(radians) * _player.getSpeed() * deltaTime;
float dy = std::sin(radians) * _player.getSpeed() * deltaTime;

Vector2f position = _player.getPosition();
if (direction == DIRECTION_FORWARD) {
  position.x += dx;
  position.y += dy;
} else if (direction == DIRECTION_BACKWARD) {
  position.x -= dx;
  position.y -= dy;
}

_player.setPosition(position);


// Face a sprite towards a point
Vector2f direction = point - _player.getPosition();
_player.setRotation(std::atan2(direction.y, direction.x) * (180 / M_PI));