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Hello, guys.

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In this video, we're going to make our rain in this game.

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And I want to make it not only raining, but I want to make a dynamic rain.

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So sometimes it's raining, sometimes it's not.

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But first we need to begin with making rain itself.

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And it's going to be pretty easy because we're going to use acid store.

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Let's go to window.

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Acid store.

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And in the search field.

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We just need to type to the rain.

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Good.

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Now let's go and find the one we need.

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This the one?

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Exactly.

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I'll try to leave the link in case you cannot find it.

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Now let's click open in Unity.

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And we're going to download this asset.

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Once it's downloaded, we need to find it.

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For some reason, I lost it.

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Yeah.

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Here.

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And then click install.

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I mean import.

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We don't need them.

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I seen we can uncheck this one.

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We need a prefab and we need an editor, but we can uncheck redmi file.

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Let's do import.

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And if you remember in the lecture about particles, I told you we need to click reload.

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So if you remember in the lecture about particles, I told you that it's easy to learn system but hard

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to master.

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And this is one of good examples what you can do with particles if you know it really well and if you

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know how to code, you can make a rain like that.

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Someone else already did it and he put it up for free use so we can use it.

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Let's go to Rain maker Prefab and we need to find rain prefab to DH.

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Let's drag it in the scene.

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So this is the rain game object.

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It's going to follow camera on its own and it's going to find camera on its own, so we don't need to

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place it anywhere.

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You can see it here and there.

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The camera field is a main camera now and follow camera check.

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So it's going to follow camera.

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And because camera follows the player.

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Rain going to follow the player as well.

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Now, how does it work?

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What does it do?

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Very simple to understand.

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Here we can see sounds for light, medium and heavy rain.

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There is an audio mixer you can set up if you want, so you can control.

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Oh, sorry.

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Why that was so easy to miss.

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Let me see.

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Let's fix it.

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Kind of list.

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Main Menu tab to start.

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Oh, it's our lane, the settings button.

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Okay, let's move it below.

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Somewhere here.

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Now I want to make it smaller and.

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Yeah.

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So as I was saying.

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You can take this rain.

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Go to settings and create another mixer for volume of the rain or some buttons to switch it on or switch

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it off after next video.

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On our day night system, you're going to know how to do that for sure.

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But in this video I want to focus on the rain itself and on setting up the random rain from time to

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time.

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So this is the sounds.

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This is all the mixer.

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This is the main setting.

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We're going to use rain intensity.

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If you increase it, it's going to rain more.

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And as of now, you can see it's colliding with an object above entire scene we have.

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So to fix that, we're going to do some simple steps.

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We're going to go over here to Collision mask.

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And as of now, we don't have many layers.

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We have only ground layer.

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Let's choose that one ground.

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Now it's going to collide with the ground.

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But we cannot see it.

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We cannot see it because particles under this game object.

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Have different certain layer.

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Let's select three.

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I mean all of them.

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These three go all the way down to renderer and change certain layer to we can select player and we

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can give it priority of number one, for example.

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Now it is feasible and we're going to need to repeat all of the steps out of the play mode.

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I'm just showing it in the play mode, so it's easier to explain.

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So now rain intensity can be increased and we can see the rain.

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And as you can see, it's colliding with the ground.

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Some thing to notice is that particles of the rain going through the ground, sometimes it's happening

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because of the settings over here.

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Collision, lifetime rain over here.

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If you wanted to go through the colliders, you can increase the value.

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It's going to look like that.

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But I think we should make it a zero so it bounds of the ground.

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This is collision for mist.

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And.

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Wait a second.

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Yeah, here is the wind settings, but they're not really important for us.

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So the main point for us is the rain intensity.

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And as you can see, high intensity with our mood, the game because it's kind of loud.

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So if you put very high intensity, it's going to look like this and it's kind of too much, I guess,

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for this game can play a lot.

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So what we can do to fix it is to set minimum and maximum rain intensity.

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I think maximum can be something like this even less.

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They won without missed.

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So 49.

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This can be the maximum and the lowest can be point one.

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Something about 1.5 is okay, what else we need to change here is the rain height.

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And the rain with and with is most important.

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So if you decrease the value, you can see the rain getting kind of slimmer.

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We can make it wider.

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And I think it should be somewhat about screen size.

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Yeah, we can also increase height and it's going to go from a higher point.

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You can see it in the thin window.

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But we don't really need it.

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So we can make it.

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We can place it lower.

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Just leave it how it was.

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So this is the main settings and then we need to make a custom script to control intensity from time

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to time.

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Let's go and set it up over again.

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First, we're going to select particles.

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Find renderer change it to player with the order five.

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Now we need to add layers.

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Let's go to layers over here.

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Let's go to layers and layer.

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We're going to have one for player, one for traps and one for coins.

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Or we could actually create one layer like interruptible.

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But let's keep it like this.

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And we have ground already.

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So we're going to select player, change it to player.

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We can do Yes.

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Children as well.

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Okay, that's good.

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That's good enough for player.

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Now let's find other objects in the prefab.

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Coin can be changed to.

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Coin traps can be changed to a trap.

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This is the trap.

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And the one inside.

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Trump as well.

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Okay.

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And the platforms are already under the ground layer, I believe.

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Otherwise we couldn't move on them.

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Yeah.

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Okay, let's see what else we want to set up.

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Collision mask.

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We need to set it up now from nothing.

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We need to ground player drops, coins.

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Cool enough.

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Collision lifetime.

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Let's make it zero.

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What was the width?

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I don't remember.

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Honestly, let.

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Let me double check.

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Like 1.2.

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Let's do 1.2.

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Good.

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We can leave it like that now.

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And unless you want to set up mixer, you can do it.

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Now I'm going to go to script folder and create a script.

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C Sharp rain controller.

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I'm going to unpack this prefab prefab, unpack, fold this one and drag my rain controller above.

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Now I'm going to open this.

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And if you take a look at this script, let me go inside of it.

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It is inherited from his reign script.

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And if you go to Baz Rain script, we can find here rain intensity, the one we used in the inspector,

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and it uses range to make it look like that slider in the inspector.

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So I'm going to copy this.

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Go to my brain controller and paste it in.

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You don't have to copy.

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You can just type the same, basically.

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But I want to change it from rain intensity to just intensity.

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This will be the name.

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Oh, and it can be private for this one.

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Sterilized field.

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By the way, if you don't type word private here, it's going to be private like that and just like

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to type private in my courses.

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So it's clear for students, probably, I should tell you that before.

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Now we have intensity.

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What else we need to know?

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We need to know how fast we change in from, let's say, zero to some rain intensity because we cannot

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do it like, you know, from zero to point four.

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It's going to look real harsh and we want to make it and we want to make smooth transition.

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So it's going to be serialized field private float change rate.

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We also want to have minimum intensity and maximum intensity.

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So private float mean let's do mean value and max value.

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We need a cool down.

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How often are we going to check?

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But you know what?

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Let's think about cool down later.

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Let's focus on changing the intensity first.

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As do private void.

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Change intensity.

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Inside.

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We're going to check all Yeah, we need target intensity.

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So we have intensity that we have at the moment and we have target intensity.

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So we're going to do the serialize field, private float, target intensity.

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In the change intensity, we're going to check if we are decreasing or increasing the value.

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So for example, if we increase in the value, we're going to do this if intensity.

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Is less than target intensity.

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It means we increase in the value.

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We want to bring intensity to the level of target intensity.

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So in that case, we're going to do intensity.

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Plus equals.

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So we're going to increase it by change rate multiplied by time, dot, delta time.

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Now we need to check if we reached that value that we want.

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So if intensity is bigger or equals to target intensity, then we set intensity equals to target intensity

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and we want to stop doing this changes.

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So let's create a boolean.

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Crime on the ball can change at intense intensity.

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And we're going to set can change intensity to false.

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Now we need to the same for decreasing the value.

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So if intensity.

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Is bigger than target intensity.

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Then we're going to change it to the lower value.

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So intensity minus equals change rate multiplied by time.

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The delta time, if intensity is less or equals to target intensity, what was that target?

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Target intensity, then intensity equals target.

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Intensity can change.

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Intensity equals false.

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Good enough.

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Now let's make an update that I deleted for no reason.

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Update.

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Date and I want to change intensity by pressing the button for now.

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So I will do if input dot.

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Get key down E code R then.

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Can change.

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Intensity equals true and lower over here we're going to do if.

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Can change intensity, then change intensity.

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Yeah, something like that.

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And we're going to set target intensity with our hands, so it's fine.

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The only thing I want to do is to set default value for change rate, and it's going to be 0.05 F.

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We really need a small value and minimum value we define before.

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So it's going to be minimum 1.2 F and a weight point to F and maximum will be.

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.49 F, Let's go back.

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So we have target intensity and let's go to play mode.

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We can see intensity over here.

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So let's say I'll set target intensity to point four and I'll click my R button, my input, boom,

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it's increasing until it reaches 0.4.

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And then stopped.

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Very good.

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I'm going to change it again to point one and press the button.

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Are.

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It's decreasing.

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Very nice.

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Now we need to connect these to rain intensities from the rain script to rain controller.

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Luckily for us, the value in the script is public, if you remember.

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Over here.

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Let me go to base.

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Rain intensity is public so we can get access to that.

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We want to get access to the component of rain script on the same game object.

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So I'm going to do private.

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Rain script to RD rain controller.

257
00:13:27,000 --> 00:13:33,000
And I want to show you another way of getting component how you could do it without start function and

258
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without dragging objects in the inspector.

259
00:13:35,000 --> 00:13:40,000
You can do return get component of rain script to D.

260
00:13:41,000 --> 00:13:42,000
Yeah, this will work as well.

261
00:13:42,000 --> 00:13:49,000
Now, in the update we're going to do rain controller dot rain intensity equals to intensity.

262
00:13:49,000 --> 00:13:56,000
So we're going to assign an intensity of the rain script to DX to our intensity in this script.

263
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Pretty simple, right?

264
00:13:59,000 --> 00:14:00,000
I hope so.

265
00:14:01,000 --> 00:14:06,000
And instead of pressing the button, I want to do it randomly from time to time.

266
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So I want to make.

267
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Serialize field private float.

268
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Chance to do rain.

269
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And default value will be 40.

270
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Then we need cool down time.

271
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So how often are we going to check if it's going to rain now or if it's going to stop?

272
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Serialize field.

273
00:14:25,000 --> 00:14:26,000
Pilot float.

274
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Rain check.

275
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Cool down.

276
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And then we need a timer.

277
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So, private float, rain check.

278
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Timer.

279
00:14:33,000 --> 00:14:35,000
Let's decrease the timer all the time.

280
00:14:35,000 --> 00:14:36,000
Rain check.

281
00:14:36,000 --> 00:14:39,000
Timer minus equals time, dot delta time.

282
00:14:39,000 --> 00:14:43,000
And then we need a function.

283
00:14:43,000 --> 00:14:44,000
I'm going to create a function here.

284
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Private void.

285
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Check or rain.

286
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Inside.

287
00:14:49,000 --> 00:14:51,000
We're going to say if.

288
00:14:52,000 --> 00:14:54,000
What was that timer?

289
00:14:54,000 --> 00:14:55,000
Hammer, Rain check.

290
00:14:56,000 --> 00:14:57,000
Sorry.

291
00:14:59,000 --> 00:15:01,000
Rain check timer is less than zero.

292
00:15:01,000 --> 00:15:07,000
Then we're going to set rain check timer to cool down so it won't work for some time.

293
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Cool down.

294
00:15:11,000 --> 00:15:13,000
And then we're going to change the intensity, the target intensity.

295
00:15:13,000 --> 00:15:22,000
We have target intensity equals to random range between mean value and max value.

296
00:15:22,000 --> 00:15:25,000
Then we're going to say we can change intensity.

297
00:15:25,000 --> 00:15:28,000
Now can change intensity equals to true.

298
00:15:30,000 --> 00:15:31,000
And we're going to put it in the update.

299
00:15:33,000 --> 00:15:34,000
Check for rain.

300
00:15:37,000 --> 00:15:43,000
So now it will work and it will check the rain every now and then according to the cool down we have.

301
00:15:43,000 --> 00:15:48,000
But there is a slight issue and it's always going to set value from minimum to maximum.

302
00:15:49,000 --> 00:15:54,000
And in this way there will be always rain just with a different intensity.

303
00:15:54,000 --> 00:15:58,000
So what I want to do here is to stop rain sometimes, like at all.

304
00:15:58,000 --> 00:15:59,000
How are we going to do this?

305
00:15:59,000 --> 00:16:01,000
We're going to use this chance to rain.

306
00:16:01,000 --> 00:16:03,000
We're going to do if check.

307
00:16:05,000 --> 00:16:13,000
Simple check if random range from 0 to 100 is bigger than chance to rain.

308
00:16:15,000 --> 00:16:19,000
Then we're going to set target intensity to random between minimum and maximum.

309
00:16:19,000 --> 00:16:26,000
And if it's not, then we're going to set target intensity to zero and it's going to decrease and it

310
00:16:26,000 --> 00:16:28,000
won't do anything for next 40 seconds.

311
00:16:28,000 --> 00:16:31,000
And then we can change intensity to true.

312
00:16:31,000 --> 00:16:33,000
I'm going to place it here to avoid confusion.

313
00:16:35,000 --> 00:16:35,000
And.

314
00:16:35,000 --> 00:16:36,000
Yeah.

315
00:16:37,000 --> 00:16:38,000
Good enough.

316
00:16:38,000 --> 00:16:39,000
We done with the script.

317
00:16:41,000 --> 00:16:42,000
How do you like it?

318
00:16:42,000 --> 00:16:43,000
I like it.

319
00:16:47,000 --> 00:16:52,000
I will set raincheck cooldown to 2 seconds and our chance to rain is zero for some reason.

320
00:16:53,000 --> 00:16:54,000
I'll try.

321
00:16:54,000 --> 00:16:55,000
I'll try 99.

322
00:16:56,000 --> 00:16:59,000
Let's go to play mode and see how does it work for us.

323
00:16:59,000 --> 00:17:03,000
So it's going to check every 2 seconds, which is pretty open so we can see changes if they work or

324
00:17:03,000 --> 00:17:04,000
not.

325
00:17:06,000 --> 00:17:07,000
What's that?

326
00:17:11,000 --> 00:17:11,000
Did.

327
00:17:11,000 --> 00:17:13,000
I think I put the wrong sign.

328
00:17:14,000 --> 00:17:15,000
If I'll put one here.

329
00:17:16,000 --> 00:17:17,000
Yeah.

330
00:17:17,000 --> 00:17:18,000
I.

331
00:17:18,000 --> 00:17:18,000
We need to fix.

332
00:17:18,000 --> 00:17:19,000
Let's do it right now.

333
00:17:20,000 --> 00:17:23,000
This one should be less than.

334
00:17:24,000 --> 00:17:25,000
Yeah, right.

335
00:17:25,000 --> 00:17:26,000
If random range.

336
00:17:26,000 --> 00:17:27,000
If values less than chance to rain.

337
00:17:31,000 --> 00:17:35,000
So now with a high chance, it's going to rain all the time and because of the high cooldown, we can

338
00:17:35,000 --> 00:17:38,000
see how it's changing from there to there all the time.

339
00:17:41,000 --> 00:17:48,000
What we can do next to fix it is to set code down to something bigger, like 20 seconds.

340
00:17:49,000 --> 00:17:54,000
And chance the rain can be maybe 40 or something about that.

341
00:17:57,000 --> 00:18:00,000
And now I'll try to run for some time and see how does it work for me.

342
00:18:03,000 --> 00:18:07,000
This drops water and drops bouncing off the traps of the player.

343
00:18:07,000 --> 00:18:08,000
Looks pretty nice.

344
00:18:12,000 --> 00:18:13,000
Rain stopped.

345
00:18:17,000 --> 00:18:21,000
Okay, let's say that chance is pretty low, so we need to we need to increase the chance.

346
00:18:22,000 --> 00:18:24,000
So maybe a chance to rent can be 5050.

347
00:18:24,000 --> 00:18:25,000
I don't know, guys.

348
00:18:25,000 --> 00:18:26,000
This is all about balance.

349
00:18:26,000 --> 00:18:28,000
How often you want it to rain.

350
00:18:28,000 --> 00:18:30,000
But we did it.

351
00:18:30,000 --> 00:18:33,000
Script is working and let's go into the next video.

352
00:18:33,000 --> 00:18:35,000
Let's make beautiful skybox.