(06-02-2016, 03:04 AM)Mudbill Wrote: When you pull the book out, it touches the area in front of it. So in your script you will need to add a collision callback to check for this event, one for each book & area.

I'm sure they can all call the same code block event.

To start off, you'll want to start the timer and ticking noise. Next up, you'll want to add a local variable which will be used to count the amount of books currently positioned. By the end you'll add a check for when that variable is equal to 3, and run the completion event.

The timer needs to reset these values and all when it expires.

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This is just me thinking it in my head, but I believe it will work just fine. But if you need help with the script, here's an example. Hopefully you understand it.

PHP Code:

void OnStart()
{
    for(int i = 1; i <= 3; i++) //this will loop the following line 3 times.
        AddEntityCollideCallback("Book_"+i, "Area_"+i, "PullBook", false, 1); 
        //Adds callbacks for Book_1 and Area_1, and for 2 and 3.
}

void PullBook(string &in asParent, string &in asChild, int alState)
{
    AddTimer("expire", 20.0f, "TimerExpired"); //Change time to how long it should last
    //Add a PlaySoundAtEntity here

    AddLocalVarInt("Books", 1); //This adds +1 to this variable for every book that collides with the area.
    //Add something to make asParent not movable so that they dont cheat by 
    //using the same book several times to enter the area, like SetPropStaticPhysics 
    //or something better. Alternatively you can disable the area and reset it later.

    if(GetLocalVarInt("Books") == 3) {
        //This will complete the event, put your code here
        RemoveTimer("expire");
        //Run StopSound
    }
}

void TimerExpired(string &in asTimer)
{
    //This will reset the event because you ran out of time.
    for(int i = 1; i <= 3; i++) ResetProp("Book_"+i);
    SetLocalVarInt("Books", 0);//Resets the counter
    //Run StopSound here.
    //Run any additional resets here as well if you have any.
} 


Disclaimer: I might've forgotten something.