CODEWITHSUNDEEP
c#unity-game-engine
Alex
Alex

Reputation: 23

Why I can't change a bool twice?

I actually have two questions. First of all, I have simple code

public float changeTime;
public float changeTimeStart;
public bool reversed;
public float nope;

void Update(){
change ();
}
void start(){
changeTime = Time.time + changeTimeStart;
reversed = false;
}
void change(){
        if (changeTime <= Time.time && reversed == false) {
        reversed = true;
        changeTime = Time.time + changeTime;
    }
    if (changeTime <= Time.time && reversed == true) {
        reversed = false;
        nope = 20;
    }
}

Basicly in the beginning reversed is set to false.

image


After 3 secs first if statement happens and it sets reversed to true. image
And after 3 more seconds second if statement happens and it sets the nope value to 20 but it doesn't set reversed value to false.

image

I can't understand why. Does the first if statement also works as soon as second statement set reversed to false? I basically want it to change every x second from false to true but I couldn't grasp the logic.

My second question is why it is 6.012766 not just 6?

image

Is this the time to reload the frame? Doesn't this make a problem if this cycle continues?

Upvotes: 2

Views: 124

Answers (1)

Sergey Berezovskiy
Sergey Berezovskiy

Reputation: 236208

Simply extend change time for x seconds each time when current time exceeds change time:

void change(){
    float changeRate = 3F; // x or changeTimeStart in your case

    if (Time.time < changeTime)
       return;

    reversed = !reversed;
    nope = 20; 
    changeTime = Time.time + changeRate; // or changeTime += changeRate
}

Your problem is doubling change time in the first case - instead of extending it by changeRate you are adding changeTime (which is a little less than the current time) with the current time. So changes will happen approx at 3, 6, 12, 24, 48 etc seconds.

And second problem is that you are not modifying changeTime in the second case. So after you change reversed to false on the next frame first condition hits (changeTime <= Time.time is still true) and changes reversed back to true.

Upvotes: 3

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