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‫Welcome back.

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‫In this video, we are going to have a look at invoke repeating which allows us to do something repeatedly,

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‫every so often, so many seconds.

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‫So let's go ahead and go back to our Instantiate Cubes script that we have created.

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‫And now I want to have a method that creates cubes all the time.

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‫So let's go ahead and create the method, public void, create new cube.

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‫And in here we are simply we simply going to create a new cube at well, pretty much the same position

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‫that we had last time.

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‫So in the key down, each time that a cube is created, we want to instantiate it at a specific position.

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‫So maybe we'll start at not minus five, but at minus ten.

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‫And now instead of having an update method, we are going to use the start method.

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‫And then here I will use invoke repeating.

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‫That's a method that invokes the method with a method name in time seconds then repeatedly every repeat

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‫rate seconds.

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‫So which means it will start after a certain of time that we can set up ourselves to do something,

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‫to call a method and do so repeatedly so we can just say invoke repeating.

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‫And how do we do that?

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‫Well, we give it an F method name, which is create new cube, which is this name here, create new

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‫cube.

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‫If you want to make sure that you spell it correctly, you can simply copy that and enter it here.

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‫Then the next parameter it needs after how many seconds do we want to start?

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‫Let's say after 3 seconds we want to start this and then we have to set the repeat repeat rate.

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‫So after how many seconds should it repeat itself?

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‫So let's say after every second.

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‫So now let's see what happens.

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‫Let's start our game.

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‫And we are after 3 seconds, we see that it starts to create cubes and the cubes are one next to the

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‫other.

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‫Now that will do the same thing over and over again until infinite.

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‫So until there is no more ram left for our game to run, until it crashes because there are too many

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‫game objects in there.

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‫So you have to be careful with invoke repeating.

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‫You can of course invoke cancel at one point so we could say if counter is higher equal 20 or maybe

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‫let's start off with five so that we can see the result of it.

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‫Invoke here, cancel, invoke.

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‫So cancels all invoke calls on this mono behavior.

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‫All right, so let's do that.

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‫Let's save it.

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‫And now let's see how many cubes it will create.

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‫It shouldn't be more than five.

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‫So let's see.

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‫One, two, three, four and five.

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‫All right, so now you know how to start invoke repeating and how to end invoke repeating.

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‫So you can simply cancel, invoke.

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‫By the way, if you want to call something only once, I think it's still an interesting method.

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‫Then you can use invoke and then that's the same thing only without repeating.

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‫So you could, for example, say, we want to create new cube, so let's call this create new cube method

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‫after 5 seconds.

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‫So now let's comment that invoke repeating out.

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‫So the only thing that will happen is after 5 seconds, there will be one single invoke statement that

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‫will call this create new cube.

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‫So you can use that in order to have delays.

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‫So it will delay the creation of a cube by 5 seconds.

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‫So I know this will be silent 5 seconds, but after a while we should see that there is a cube.

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‫And as you can see, there is our cue.

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‫Great.

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‫So now you know how to use invoke repeating how to use, invoke and how to cancel this invoke repeating

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‫method.