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‫Welcome back.

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‫In this video, we'll prepare our code so that the game will run on Android as well, because so far

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‫we are using the mouse and if we don't move the mouse at all.

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‫So for example, I don't move the mouse now, but still my fruit day fruits get destroyed.

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‫So whenever I touch something or the mouse touches something, then the object gets destroyed or touched.

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‫So what I want to have is that my object only or my my blade only is active.

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‫If I actually moved the mouse a little bit or if I touched with my finger a little bit.

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‫So if I swipe just a little bit, then life is active.

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‫If I didn't touch it, then there is no no knife and I don't destroy anything or touch anything.

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‫So let's do that.

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‫Let's go back to our code and we handle that within our blade.

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‫So far we always took the mouse position, but now what we will need to do is check if our mouse is

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‫moving.

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‫So we'll need to have the last mouse position.

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‫We will need to have the mouse velocity and the minimum velocity that we want to have so that we say

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‫that this is an actual movement of the mouse.

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‫So let's say if the mouse moves just just a little, little bit, we don't want that to be an actual

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‫movement so we can set up how much movement we require for it to be an actual mouse movement.

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‫So let's create those variables that we'll need.

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‫First of all, a public variable that I'm going to call Min Velo, which stands for minimum velocity,

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‫and I'm going to use 0.1 as its value, 0.1 float.

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‫So we're going to use a float value here.

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‫Then I need several private variables, so I need a private vector three, which is our last mouse position

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‫and a private vector three, which is our mouse velocity.

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‫And finally we need a private collider to DH, which is our call.

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‫So that's just going to be a2d collider and in our wake method we will initialize that collider.

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‫So call is get component and the collider.

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‫So we want to have the collider to DX of our blade.

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‫That's what we ask for here.

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‫Now our collider should only be active if we are moving our mouse or if we are touching the screen.

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‫So that's the idea behind this collider, because if we look at the collider of our blade, I'm going

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‫to pause the game or stop the game here.

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‫Our blade has a collider.

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‫Let me crop that.

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‫So here this circle collider to DX is the collider of our blade.

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‫And I only want this to be active if our mouse is moving.

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‫So let's create a new method for that and it's going to return a boolean.

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‫We're just going to say, is mouse moving?

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‫You could also call it is thing moving or something comparable.

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‫So we are going to set the vector three here, which we call current mouse position and that's going

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‫to be the current position of our blade.

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‫Next, we calculate how much it has traveled.

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‫So traveled is going to be the last mouse position minus the current mouse position.

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‫And then we use magnitude here.

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‫So we, we apply the dot magnitude property here, returns the length of this vector.

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‫And what that will do is it will simply tell us the length between last mouse position and current mouse

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‫position, because those are two points in a 3D world and there is a line between those and I want to

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‫have the length of that line and that's what magnitude will return.

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‫Now I can simply say the last mouse position is the current mouse position, because we have here this

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‫last mouse position, this private variable, and each time we move our mouse we want, we will update

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‫that.

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‫So each time is move its mouse moving is called that one will be updated.

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‫So we calculate how much we have traveled and then we update our last mouse position variable.

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‫So now what we need to check if traveled.

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‫So the distance that was traveled is bigger than the min velocity.

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‫Then we want to return.

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‫True, and otherwise we return false.

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‫So what that means is if we actually.

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‫We don't need those if.

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‫We have traveled enough space.

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‫So if the mouse has traveled enough space, then return true.

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‫If it hasn't return false.

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‫And what is enough space or what is enough distance?

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‫Well, that's whatever we have set up here.

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‫So min velocity 0.1 F.

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‫Now what we all need to do is in the update method we will need to assign our call to enabled variable

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‫two is mouse moving.

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‫So only if we have touched the screen and moved our screen our mouse a little bit, only then our call

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‫will be enabled.

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‫So that means our collider two dx of our blade will then be enabled.

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‫So now let's save that script and let's go back to our game and let's see if we still destroy objects,

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‫if we don't move the mouse.

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‫As you can see, the objects fly through.

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‫I don't damage them, but as soon as I move my mouse.

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‫Just a little bit.

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‫Now I don't move it.

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‫As you can see, the fruits don't get destroyed.

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‫I moved it a little bit and my fruits get destroyed.

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‫So while I'm moving, it gets destroyed.

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‫Otherwise it doesn't get destroyed or the.

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‫The fruits don't get cut.

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‫Great.

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‫So now we're ready.

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‫So see you in the next video where we're going to set up our Android studio and prepare everything so

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‫that we can go ahead for Android.

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‫We prepared already the code.

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‫So let's go ahead in the next video and prepare the rest.