CODEWITHSUNDEEP
unity-game-engine
Jesse
Jesse

Reputation: 15

Strange If/Else Behavior

Context

I am making a mobile game in which the player is required to touch objects in a specified order. The correct order is determined in a List called clickOrder. To determine the current object the player is supposed to click, currClickIndex is used.

Problem

When touching a correct object, the debug text will display "Correct" for a split second, and will then immediately change to "Wrong." What I am unsure about is why both the if and else blocks are executed when only touching a single object.

Code

void Update()
{
    if (Input.touchCount == 1)
    {
        if (this.enabled)
        {
            Vector2 worldPoint = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            RaycastHit2D hit = Physics2D.Raycast(worldPoint, Vector2.zero);

            if (hit != null && hit.collider != null)
            {
                // check if the touched object is the correct one
                if (hit.collider.gameObject == clickOrder[MyData.currClickIndex])
                {
                    debug.text = "Correct";
                    MyData.currClickIndex++;
                }
                else
                {
                    debug.text = "Wrong";
                }
            }
        }
    }
}

Upvotes: 0

Views: 45

Answers (1)

user932887
user932887

Reputation:

As soon as the correct object is being touched, you do this:

MyData.currClickIndex++;

which moves you forward in the ordered sequence, and from then on, the previously correct object is not correct anymore. But you're still touching it.

If you want to avoid this, you need to move forward in the sequence after you've touched the correct object.

if (there are touches and the correct object is being touched)
{
      set a flag;
}
else if (a flag has been set)
{
      MyData.currClickIndex++;
      reset the flag;
}

Upvotes: 1

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