Timer to Spawn Object Every X Seconds

Have tried to figure this out using the timers here:

scirra.com/tutorials/450/timers

but have not had any success. In short I am wanting to spawn an object on a layout every say 30 seconds. However at the start of a layout I want to start over and thus the construct statement "every x seconds" wont work as that is a revolving clock.

So I created a global variable "timer=0"

Add 1 to timer every 1 seconds

Set timer to 0 at the start of layout

Now my only question is how to get it to spawn the object every thirty seconds using my timer variable above?

I tried when timer/30 is equal to integers 1-50 but int doesnt work that way, I was basically trying to get it to only spawn when it was a multiple of 30. Any ideas much appreciated.

That tutorial is out of date. Use the new Timer behaviour.

TimerExample.capx

To get objects to spawn every 30 seconds you could try:

Every 1 second - add 1 to (Variable)"Timer"

If (Variable)Timer is greater than 30 - set value to zero

Then on (system) on end of layout - (system) reset global variables

EyezWidee you can also add 1 every second by doing:

Every Tick: Add 1 * dt to Variable "Timer"

The reason for that is to make it work even if the game gets laggy (dt always adds up to 1 every second). It's used in most of the built-in plugins to keep them smooth.

Ashley wrote a good tutorial on it too here: https://www.scirra.com/tutorials/67/delta-time-and-framerate-independence

Okay thats actually pretty interesting I didnt know that, I try to avoid using every tick with variables feels like it hinders the performance especially when it involves webstorage. But I'll deff give that try also.

Both are excellent answers, thank you I greatly appreciate it.

One questions for clarification does the new timer behavior also work on dt so in the event the game was lagging it would behave correctly?

kenn

Var = Difficultly

Every X Second= add 1 to difficulty

System Var Difficulty is greater than 5

"Add another condition"

System Var Difficulty is less than than 30

"Sub event"

Every 1 second

Action create object (enemy) (How and where you want)

https://www.dropbox.com/s/w1lgjrif7nneu69/Var-Spawn1.PNG

Here is a link to how I have mine set up (works for me)

Yes, Timer uses dt.

as another alternative

var nextTime

var timedelay

On start of Layout

nextTime = time + timedelay

Event: nextTime <= time

do your creation

nextTime = time + timedelay

Thanks everyone for the input. Glad that the timer uses dt, ultimately I went with the timer plugin and found that I could add quite a few variations and variables leveraging what was already built into it. Thanks again.