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Hello, guys.

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In this video, we're going to talk about particles.

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I'm going to show you how to create a simple dust effect.

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And before we begin, I want to tell you that particles are entire complicated system that can be in

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their profession.

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For some people, it is what they say.

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Easy to learn, hard to master.

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You can make lots of different stuff.

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You can make a snow effect.

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Fire explosion.

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I'm going to show you some examples later in the course, what other people can do.

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But in this video, we're going to focus on making simple dust effect.

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And then I'm going to make one more video showing what you could do, possibly with particle system.

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Okay, let's do dust.

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First.

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What we need to do is go to effects particle system, and I want to name it Dust Effect, dust picks.

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We're going to change rotation to zero because at the moment you can see that particles are flying up

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if you see it in 3D space.

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But we are into this space, so we need to make it zero rotation on the X and now they're going to fly

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kind of like kind of like away from the camera.

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But it doesn't matter for us much because we use in 2D.

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Let's go back to 2D and I want to place them at the feet of the character over here.

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Next step would be to make them visible.

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We can do it with a certain layer.

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Let's go all the way down to renderer.

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Find a certain layer over here.

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Let's change it to player and set it to minus one.

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So it will be always behind the player but in front of everything else.

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Good enough.

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We can go to material now and change it to a sprite default.

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Now it looks more like a pixels like what we need.

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Let's go all the way above.

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And I think that can the big so we can make them much smaller.

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We can do that by changing start size to point.

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To.

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That's good.

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Now we can see that our particles are spreading all the way around, and we need to keep them at one

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place to do that.

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We can go to shape over here and change this shape from cone to box.

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Now they all in the same box.

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And what I want to do here is to change the size of this box.

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And when I place it at the feet of the character and change scale on the Y to basically zero.

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Good.

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Now there are particles and they move in, but they move in to a different direction.

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So we cannot see it.

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What we need to do is to make them move up and left.

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We can do that by changing velocity over lifetime.

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Let's click it here.

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Let's find it Velocity over lifetime.

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Open it and we're going to change the speed of the X to minus one and speed of the Y to something like

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two.

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Now it goes up and left and that is good.

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Pretty much looks like a dust.

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What we want to do next is to go above and make them exist for less time.

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Because now you can see they are flying high and we need just a short burst of the particles.

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We can do that by change in duration from five to something like point five.

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And I want to uncheck looping over here and uncheck play on Awake.

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Now, particles will be there only when you play them.

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Let's try this play.

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It's going to fly like that and it looks more like what we need, right?

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Just a short burst.

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If you click restart, it's going to be there again.

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We can make more of them by changing emission over here.

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Let's go and do that.

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And we can set value to really high to something like 100.

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Let's see this now.

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This is more like a dust.

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And now we want to make it disappear with the time, because at the moment is just a bunch of white

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cubes there.

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What we can do is go to color over lifetime and change this color.

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And let's click it first open.

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And we can change color of a lifetime by clicking the bottom one and change it to something like red.

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Let's just see, for example, you see they turn in red with a time.

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Or.

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We can keep the color as it was, but change the alpha to make it transparent.

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And now you can see they disappear in.

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It looks much better.

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Now I want to lower duration time even more.

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I want to set it to point one.

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And this is really look like a dust.

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To make it fly faster because now it's kind of floaty.

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We can change simulation speed to something like three or four.

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Let's try it.

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I beat fast.

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So maybe to.

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Yeah, this looks better.

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And now let's try and play these particles when we need to.

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I'm going to make a child of the character.

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And more with Tumblr below.

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Let's go to player and I want to make another header for visual effects of the character header and

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we fix.

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And here we're going to do serialize field private particle system.

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That's the fix.

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Good.

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Now when we want to play dust when our player jumps, for example.

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So let's go and find John Button.

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And by the way, we can get in lots of same lines of code.

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So maybe we should modify script just a bit.

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Let's do this.

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Let's create a jump function over here.

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Private void Jump.

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I'm going to duplicate this line of code, paste it in here, but I want to pass jump force as a parameter.

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So force.

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And here instead of jump four is going to be force.

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Now we can cut out the music or the effect line.

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Paste it in here and now I will.

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Please just a jump function here and I'll pass it.

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Jump first.

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And for this one, we're going to do jump.

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And I'm going to pass double jump force.

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Cool.

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Now we only need to change.

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Jump once in the function and it's going to be fine here and there.

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Yeah, I like it more.

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All right, So here we can play the dust and dust fix Dot play.

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Pretty simple.

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That's it.

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That's all what we need to do.

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I think we could play dust when we slide in.

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So let's do it here.

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That's the picks that play.

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We need to assign dust effect, so let's do it.

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And in the play mode, we want to see how does it work.

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We still need to fix something, but we'll do it after we seen this one.

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So there is a dust and it's fine.

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Then the problem is we can see it's still child of the player and it stays in most together with the

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player, which looks really weird.

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What we can do here is to go to dust effect.

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I'll mute the game, by the way.

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We can go to dust effect, find simulation space and change it to world.

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And very same we need to do in the velocity over lifetime.

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Bald.

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Now it is much better.

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I'll try to do slide.

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I know.

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Well, particles were there.

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I wonder what if we change velocity of our lifetime to smaller value to something like -0.2 and for

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the Y point three?

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Let's see now.

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Yeah, this is better.

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We can increase simulation speed.

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Let's try.

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Yeah, this is much better.

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Let's keep this one.

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Now I feel like it would be nice to play particles on Linden as well.

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And we can do that.

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We just need to modify a script a bit.

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Let's go to the player script somewhere in the movie info.

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We can just create a boolean private ball.

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Ready to land.

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And we're going to set it to true when player is in the air and when he is, let's say, decrease in

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fallen.

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Yeah.

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So let's do this.

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Let's just do it in the update.

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If our velocity that Y is less than minus five and not as grounded then ready to land equals true.

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And then another if statement, if ready to land and is grounded, then we're going to play dust and

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dust fix.

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A play.

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And we're going to set ready to Land Falls.

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And we can wrap it in a function.

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There's something like check for land, check for landing.

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And let's move well below.

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Yeah.

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Here.

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But we are here to fix something else.

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Let's find our functions.

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I want to find just button and slide button, and I want to make it unavailable if player is dead.

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Because now we accessing these buttons from another place, from the buttons on the UI.

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So we need to do if it is dead.

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Then return.

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Same here.

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We can do if sliding or is dead.

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Then return.

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Okay, let's do it.

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Let's see the landing.

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Yeah.

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There is a dust on landing.

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If you feel like it's too much, maybe you can remove it on the double jump or make less emissions so

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it's less of them.

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It's all up to you and up to your feeling.

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All right, let's go to the next video.