Problem in power up generation

Question

I am trying to instantiate an obstacles, Currency and Power up in the game. i am using same script to instantiate all. obstacles and currency are working perfectly but power ups is not generating in a game. it displays an error message

NullReferenceException: Object reference not set to an instance of an object ElementsGeneratorss.instantiateElement (Int32 elementNumber, Vector3 v3Position, Single CurrentAngle, Vector3 hitInfoNormal) (at Assets/GameKit/C# Scripts/ElementsGeneratorss.cs:312) ElementsGeneratorss.generateElements (Int32 elementNumber, Single fLocation, Boolean bStartPatch) (at Assets/GameKit/C# Scripts/ElementsGeneratorss.cs:225) ElementsGeneratorss+c__Iterator1.MoveNext () (at Assets/GameKit/C# Scripts/ElementsGeneratorss.cs:115)

i used C# Script

private void instantiateElement(int elementNumber, Vector3 v3Position, float CurrentAngle, Vector3 hitInfoNormal)
{
    if (elementNumber < 0)
        return;

    Transform ObjectHandle;

    if (elementNumber < iObstacleCount)//obstacles
    {
        // for generating obstacles. its working perfectly
    }
    else if (elementNumber >= iObstacleCount && elementNumber < (iObstacleCount+iPowerupCount))//powerups
    {
        ObjectHandle = elements[elementNumber].tPrefabHandle[elements[elementNumber].iPrefabHandleIndex];
        elements[elementNumber].iPrefabHandleIndex++;
        if (elements[elementNumber].iPrefabHandleIndex >= elements[elementNumber].tPrefabHandle.Length)
            elements[elementNumber].iPrefabHandleIndex = 0;
        ObjectHandle.gameObject.SetActive(true);
        ObjectHandle.up = hitInfoNormal;
        ObjectHandle.position = v3Position;
        ObjectHandle.localEulerAngles = new Vector3(0,0,0);
        ObjectHandle.Rotate(0,CurrentAngle,0);
        ((PowerupScriptss)ObjectHandle.GetComponent(typeof(PowerupScriptss))).initPowerupScript();
    }
    else if (elementNumber == (iObstacleCount+iPowerupCount))//currency
    {
        // for generating currency. working perfectly
    }
}

it displays an error message in "ObjectHandle.gameObject.SetActive(true);' — Manoj Balaji M
– Manoj Balaji M, Commented Jan 20, 2016 at 8:17
After assignment of ObjectHandle, check if it is null or not, by logs or breakpoint. And also add null check after this line — Hamza Hasan
– Hamza Hasan, Commented Jan 20, 2016 at 9:53
no its not null. i used the same method for currency and obstacles. its working. power ups only not working — Manoj Balaji M
– Manoj Balaji M, Commented Jan 20, 2016 at 9:55

Alex · Accepted Answer · 2016-03-02 07:55:23Z

-2

Set the currency value to a very low number, e.g. if you set the value to 10 it will generate a large count.

edited Mar 2, 2016 at 7:55

Alex

3965 silver badges13 bronze badges

answered Mar 2, 2016 at 4:24

GMan

205 bronze badges

1

\$\begingroup\$ I'm not sure what this answer is trying to say. I'd recommend editing it to be more descriptive about the solution, with care to spelling & grammar (eg. is "vow" meant to be "low," and "its ll" meant to be "it will"?) \$\endgroup\$

DMGregory
– DMGregory ♦

2016-03-02 04:30:31 +00:00
Commented Mar 2, 2016 at 4:30

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