void Ship :: setupCamera () const
{
CoordinateSystem camera = getCameraCoordinateSystem();
const Vector3& camera_position = camera.getPosition();
const Vector3& camera_up = camera.getUp();
Vector3 look_at = camera_position + camera.getForward();
gluLookAt(camera_position.x, camera_position.y, camera_position.z,
look_at.x, look_at.y, look_at.z,
camera_up.x, camera_up.y, camera_up.z);
}
void World::playerFireBullet()
{
if (m_playerShip.isAlive() && m_playerShip.isBulletReady())
{
CoordinateSystem cs = m_playerShip.getCoordinate();
m_bullets[m_nextBulletIndex].fire(cs.getPosition(), cs.getForward(), m_playerShip.getId());
m_playerShip.reloadBullet();
m_nextBulletIndex++;
if (m_nextBulletIndex == Const::BULLET_COUNT){
m_nextBulletIndex = 0;
}
}
}
void World::update()
{
handleKeyPress();
m_playerShip.update(*this);
int i = 0;
// bullet
for (; i < Const::BULLET_COUNT; i++)
{
m_bullets[i].update(*this);
}
int abc = 0;
// enemy ships
Vector3 playerPosition = m_playerShip.getPosition();
for (i = 0; i < Const::ENEMY_SHIP_AMOUNT;i++){
if (m_ships[i].isAlive()){
double distance = m_ships[i].getPosition().getDistanceSquared(playerPosition);
if (distance < Const::NEAR_TO_PLAYER){
m_ships[i].runAi(*this);
m_ships[i].update(*this);
abc++;
}
}
}
CoordinateSystem cs = m_playerShip.getCoordinate();
Vector3 position = cs.getPosition();
Vector3 up = cs.getUp();
m_camera.setUp(cs.getUp());
Vector3 forward = cs.getForward();
m_camera.setForward(forward);
position += 20 * up;
position -= 100 * forward;
m_camera.setPosition(position);
checkCollision();
}