//asta-i functia de-mi detecteaza coliziunea
bool Engine::handleCollision(Tank* tankToCheck, sf::FloatRect& intersection)
{
    sf::FloatRect firstSpriteBounds = tankToCheck->m_tankSprite.getGlobalBounds();

    for (auto &enemyTank : m_enemyTanks) {

        if (tankToCheck == enemyTank.get())
            continue;

        sf::FloatRect secondSpriteBounds = enemyTank->m_tankSprite.getGlobalBounds();

        if (firstSpriteBounds.intersects(secondSpriteBounds, intersection)) {
            return true;
        }
    }

    if (tankToCheck != m_localPlayerTank.get()) {
        if (firstSpriteBounds.intersects(m_localPlayerTank->m_tankSprite.getGlobalBounds(), intersection)) {
            return true;
        }
    }

    for (auto &entity : m_worldEntities) {

        if (entity->getType() == entityType::Bush)
            continue;
        if (entity->getType() == entityType::Ice)
            continue;

        sf::FloatRect secondSpriteBounds = entity->getSprite().getGlobalBounds();

        if (firstSpriteBounds.intersects(secondSpriteBounds, intersection)) {
            return true;
        }
    }

    return false;
}

//asta-i functia de-mi misca tancurile, unde scade intersectia in caz de coliziune
bool Engine::moveTank(Tank* tankToMove, const char direction, float speed)
{
    sf::FloatRect intersection;

    switch (direction) {
    case DIR_UP:

        tankToMove->m_tankSprite.move(0, -speed);

        if (handleCollision(tankToMove, intersection)) {
            tankToMove->m_tankSprite.move(0, intersection.height);
            return false;
        }

        if (tankToMove->m_tankSprite.getRotation() != 0)
            tankToMove->m_tankSprite.setRotation(0.f);

        break;

    case DIR_DOWN:

        tankToMove->m_tankSprite.move(0, speed);

        if (handleCollision(tankToMove, intersection)) {
            tankToMove->m_tankSprite.move(0, -intersection.height);
            return false;
        }

        if (tankToMove->m_tankSprite.getRotation() != 180)
            tankToMove->m_tankSprite.setRotation(180.f);

        break;

    case DIR_LEFT:

        tankToMove->m_tankSprite.move(-speed, 0);

        if (handleCollision(tankToMove, intersection)) {
            tankToMove->m_tankSprite.move(intersection.width, 0);
            return false;
        }

        if (tankToMove->m_tankSprite.getRotation() != -90)
            tankToMove->m_tankSprite.setRotation(-90.f);

        break;

    case DIR_RIGHT:

        tankToMove->m_tankSprite.move(speed, 0);

        if (handleCollision(tankToMove, intersection)) {
            tankToMove->m_tankSprite.move(-intersection.width, 0);
            return false;
        }

        if (tankToMove->m_tankSprite.getRotation() != 90)
            tankToMove->m_tankSprite.setRotation(90.f);

        break;
    }

    // daca s-a executat miscarea, returnam true
    return true;
}