Spawn many object

Question

Hi all,

I need to fill a box with more sphere . For do this operation i want kno which can be the best solution? I have used Instantiate() in a for cycle, but when i do this all objects collide and go out of the box. i not need mandatory to do this at runtime but i don't know otheer way. Can anyone help me?

Thanks

Answer 1

Best Answer

Answer by aldonaletto · Nov 16, 2011 at 01:52 PM

To avoid this collision issue, you could instantiate the objects at the top of the box and let them fall. You could use a grid pattern to instantiate a row of spheres, yield, instantiate another row, yield again, and so on. NOTE: this loop should not be in Update, because it doesn't accept the yield instruction, but could be in Start - something like this pseudo code:

for (var q = 1000; q > 0; ){
    for (var i = 0; i < 10; i++){
        for (var j = 0; j < 10; j++){
            pos = Vector3(i * sphereDiameter, someHeight, j * sphereDiameter);
            Instantiate(spherePrefab, pos + box.position, Quaternion.identity);
            q -= 1; // decrement counter
        }
        yield; // let Unity breath until next frame
    }
}

3 Show 2 · Share

FLASHDENMARK · Nov 16, 2011 at 04:22 PM 1

Share

A loop inside a loop and another loop in that loop 1..2..3 That is 3 loops! -.-

+1

aldonaletto · Nov 16, 2011 at 07:16 PM 0

Share

Yes, it's a lot of loops - but I had no time to write a more elaborated thing, and wanted just to give the basic idea. The problem here is that only multiples of 100 spheres are instantiated - not a problem in this case, where 1000 spheres are needed.

Spawn many object

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions