Ads.cs

// CODE SNIPPET, NOT THE FULL FILE //

void Start()
{
    origTimeLeft = timeLeft;
    timeLeft = timeLeft * 3;
    imageObjectGOs = new GameObject[allImageObjects.Length];

    ui_handler.dataTable = ui_handler.gimmeDatabase();

    //check what data is available for targeted ads
    ArrayList availableData = new ArrayList();
    if (((string)ui_handler.dataTable["Drugs_consumed"]).Contains("Caffeine")) availableData.Add((Texture)coffeeAd);
    if (((string)ui_handler.dataTable["Drugs_consumed"]).Contains("Cannabis")) availableData.Add((Texture)cannabisAd);
    if (((string)ui_handler.dataTable["Drugs_consumed"]).Contains("Tobacco")) availableData.Add((Texture)tobaccoAd);
    if (((string)ui_handler.dataTable["Favorite_Sportsbrands"]).Contains("Northface")) availableData.Add((Texture)northFaceAd);
    if (((string)ui_handler.dataTable["Favorite_Sportsbrands"]).Contains("Puma")) availableData.Add((Texture)pumaAd);

    //creat boolean array to see which ads should be targeted
    bool[] replaceWithTargetedAd = new bool[allImageObjects.Length];

    if (availableData.Count > 0)
    {
        //calculate how many targeted ads there should be in total
        int numberOfAdsToTarget = mapNumber(availableData.Count, 1, 5, (int)allImageObjects.Length/6, (int)allImageObjects.Length / 2);

        int amountOfIndexesSet = 0;
        //randomly assign indexes of the random ads (so they are spread equally throughout the panels)
        while (amountOfIndexesSet < numberOfAdsToTarget)
        {
            int randomVal = Random.Range((int)0, (int)replaceWithTargetedAd.Length);
            if (!replaceWithTargetedAd[randomVal])
            {
                replaceWithTargetedAd[randomVal] = true;
                amountOfIndexesSet++;
            }
        }
    }

    for (int i = 0; i < allImageObjects.Length; i++)
    {
        //load random image from the generic Ads pool, assign to current RawImage
        if (replaceWithTargetedAd[i])
        {
            // -> targeted
            allImageObjects[i].texture = (Texture)availableData[Random.Range(0, availableData.Count - 1)];
        }
        else {
            // -> generic
            allImageObjects[i].texture = genericAds[(int)(Random.Range(0, genericAds.Length - 1))];
        }

        //correct scale, so it has correct aspect ratio and it's scaled down
        allImageObjects[i].SetNativeSize();
        int w = (int)(allImageObjects[i].rectTransform.rect.width / 5);
        int h = (int)(allImageObjects[i].rectTransform.rect.height / 5);
        allImageObjects[i].rectTransform.sizeDelta = new Vector2(w, h);
        //asign GameObjects for each component
        imageObjectGOs[i] = allImageObjects[i].gameObject;
    }

    //shuffle Array, so images are loaded in random order
    shuffleArray(imageObjectGOs);

    for (int i = 0; i < imageObjectGOs.Length; i++)
    {
        //deactivate all ads
        imageObjectGOs[i].SetActive(false);
    }

    //Start coroutine to begin showing ads
    startTimer();
}