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In this lecture, I'm going to show you my amazing pixel art skills, because I've provided you with

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a mushroom that we're going to add some physics material to DX two so that we can bounce to get out

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of sticky situations.

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We're also going to fix the issue where the player was sticking to the walls.

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We're going to make it so you can't stick to the walls anymore and you slide up and down them smoothly.

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Let's start first by adding our bouncy mushroom.

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So I've gone and created a crazy little mushroom for you.

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I'm going to put it in my sprites folder.

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You can download it against this lecture.

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Side note I created this in libraries right after following along with our pixel art course.

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So if you have any interest whatsoever in making a way better mushroom than the mushroom I made, you

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can go through the pixel art course and get some pretty cool pixel art skills really fast allows you

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to make little things like what I've made, and I'm going to bring that in my mushroom.

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Here it is.

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In here you can see a little mushroom.

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If I click, I get the preview over yonder.

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Okay, just a little red mushroom, nothing too fancy.

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But I wanted to have something we could bounce on.

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I also need a spot in my level here where we can bounce.

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I'm going to put this over here, I think.

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Just rearrange my level very briefly, jump onto the eraser, make sure I'm on the correct tile map

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platforms, tile map.

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Just do a little bit of deletion in here so we've got something to bounce on and then go boing from

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A to B.

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I think that'd be pretty nifty.

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Get rid of a couple of these things as well, because when I was prototyping this, I kept bouncing

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up into the roof, which is kind of fun, but be good to have none of that roof bouncing going on.

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And I'm also going to click my player hit and move my player over to the left, more of the start of

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the level type thing down in this little spot just there.

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We'll be putting my mushroom here.

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So what we need to do is create a new tile map, which is going to be all about bouncing on things.

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So click on tile map grid, right click find to the object and then tile map and then rectangular.

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I'll name this bouncing tile map and we'll go and add the fundamental things we need.

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So we need our tile map.

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Collider To DX Add component.

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We need our composite collider to DX to have a rigid body.

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Yes, we have a rigid body in there already.

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So we need the tile map.

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Collider We need the rigid body and we need composite.

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Collider 2D and one of these things in here, we need to mark as static.

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So rigid body, 2D static so that our tile map doesn't go flying down into the nether regions.

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Nether Is that the right word?

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Netherworld Nether regions I don't think that's quite correct actually.

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I think netherworld might be more accurate.

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Sorry if I've said the wrong thing there.

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Now next up, we need a process, our mushroom.

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So I'm going to click on the mushroom, drag it over into the tile map.

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That should ask me to save something somewhere.

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It has.

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We're going to put this in.

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Let's see.

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Assets and then tiles.

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And that will be the mushroom.

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Excellent.

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And you can see it's kind of tiny on there.

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That's because we haven't changed the pixels per unit.

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So I'm going to click on the mushroom, look over on the right hand side, pixels per unit should be

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32 because I created it as a 32 by 32.

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We're going to apply what we're here will jump into the Sprite editor.

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Just play around with the collision of this.

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I'm going to actually create a custom physics shape that will looks like it does nothing, but you have

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to click to start the process.

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So I'll click in the bottom corner here or drag.

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I think I need to do yet drag and then I'm going to drag the points just to where I need them.

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If you need another point, I won't put this exactly lined up.

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I'll put a bit over to the left side, a little bit forgiving.

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If the player kind of lands around about there, it'd be fine.

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It'll do some bouncing click anywhere on the line that will create a new point.

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Pop that all the way over to there another point.

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Clicking points, clicking points.

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There we go.

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Now we've got our customer's physical shape.

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Click on Apply X out of that.

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This shape should now have some good physics on it.

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If I'm selected on the bouncing tile map, super important click on the mushroom and then go into the

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world and click to drop that in there.

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You can see that it doesn't appear, although you can see the little outline of the collision doesn't

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appear because of sorting order.

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So let's find our tile map renderer sorting order.

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Let's see, this will be the same sorting as the platforms, I think.

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I don't see that the mushroom would ever be in front or behind of the platform.

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It is its own entity.

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So we'll say it's at the same visual level as platforms.

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Now we can see it.

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We also need to handle collision.

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So let's go up into layer.

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I'm going to add a new layer too.

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So we don't have any conflicts.

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We'll call this bouncing jump back onto the bouncing tarmac.

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So we're doing this all at the tile map level.

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So everything that we apply to the tile map will have these particular rules, including the bouncing.

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This will do in a moment.

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So I'll change the layer here to bouncing and that should be all pretty cool.

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Let's just check that that's working, that the player can run and at least collide with the mushroom

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over there.

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Jump, jump, jump, jump.

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Yep.

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I can collide and I can land on it.

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Can't jump off the mushroom because we haven't created that logic in our code.

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That's fine.

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I think this will only be for bouncing.

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I don't see a time where we need to actually jump on it because as soon as we touch it, it's going

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to go boing and push us way off into the distance.

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Now the next step I'm going to, let's say, my assets folder.

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Where shall we put this?

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I'm going to create a new folder, right click create folder.

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We'll call this materials double clicking materials, right click create a 2D Physics material, 2D.

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And I will name this bouncy bounce just to be very professional with my naming.

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Now you can see if you haven't played around with physics materials before, we've got these two values

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friction and bouncing.

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This friction we'll get to later.

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Bouncing us is going to show how much we bounce off there.

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If it's zero, there'll be no bounce.

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That's zero on there at the moment.

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So I'm going to put this to say 1.5.

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So we have a value at one.

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It means that if we drop from a certain height, we should bounce back up to that same height.

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But if it's 1.5, if we drop from that height, we should bounce up 50% higher.

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I think that's going to work out the maths on that might not be exact, but I know that a value over

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one is going to have us go jumping higher and a value under one is going to have us go lower.

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So I'll put that at 1.5.

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Click back on the bouncing tile map.

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Now we need to find the right spot.

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There's a couple of spots in here that ask for material so you can see on the tile map.

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Collider Also on Rigid Body, it asks for a material also on the composite.

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Collider I'm going to put this one on the tile map.

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Collider 2D.

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So if that works, cross our fingers, hope for the best.

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Click on play.

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That's often how game development is, isn't it?

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Just try things, see if it works.

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Jump and boing.

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That's a nice bounce.

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Excellent.

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So the cool thing about this is if I didn't jump on the mushroom, I can't actually escape here.

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I can at the moment because we've got this dodgy wall climb thing, a double jump thing.

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But I need to actually use the mushroom to bounce out of the hole in there.

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So we've got ourselves another game mechanic, which is really neat.

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I mean, you fly a little bit too far and if you stay on it, you go a little bit crazy.

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But that could be fun in your game if you want to do that.

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And the trick there is to play around with the value.

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So if you don't want it to be quite so bounce that bounce and get more and more, then you can put it

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closer to one.

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But for now that's fine with me.

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You can jump on the mushroom to escape that pit that we're in.

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Excellent.

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So that's the first part of using physics material.

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2D, I've got these mushrooms, you can have different sorts of things.

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Remember, with this particular approach, this approach that I've shown you here, all anything we

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put on this time map will have the same 1.5 bouncing ness.

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So with this particular strategy, you couldn't have big mushrooms that make you fly a long way, little

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mushrooms that make you fly a smaller way.

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You'd need to have separate tile maps to do that if you're going to do that particular approach.

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Of course, if you wanted to have something that was a different bouncing profile, you could go and

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create a game object and put that into the world and have that have a different bounce profile.

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So you could have a bunch of different game objects.

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But we're trying to do this all within tile maps at all lines up nicely and works with the tile map

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structure.

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Next up, what we're going to do is stop the behaviour where the player is gripping to the wall.

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This is also a physics material issue.

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So at the moment I can go jump, jump, jump, jump, jump, jump, jump, jump, jump.

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And I'm grabbing onto the wall.

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I don't want that.

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You might want to have wall jumps in your game and that's cool.

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You can play around with that.

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But for me, I want to have it.

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So I don't actually I don't actually stick to the wall.

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I don't get stuck like this.

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This is the main thing I'm trying to stop being able to do.

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So this is a challenge for you to play with friction.

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Stop the player from gripping to the walls by applying a new physics material 2D to the player.

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So pause the video.

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Take that on.

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See you back here when you're done.

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Okay.

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This one should be reasonably quick, I think.

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Well, in our materials folder, right click create two dx physics material two dx I'll call this friction

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should probably be called no friction.

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No friction.

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That would be a smarter name, wouldn't it?

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Rick Yes, it would.

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Rick okay.

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Talking to yourself, first sign of insanity, friction.

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I'm going to put to zero bouncing us.

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I'll leave at zero as well, then click on the player.

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Where do we want to put this?

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Probably on the capsule.

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Collider I think we've got our material here.

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I'll click on the selector, no friction, click on play.

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And if we don't do the stuck to the wall running thing, mission accomplished.

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Yep.

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Awesome.

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So I'm pushing left, but I'm not sticking.

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I can still do the extra wall jump.

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That's something we're going to fix in the next video, but for now, we've got it.

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So the player is sliding down the walls instead of accidentally gripping, getting stuck.

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And we've also made ourselves a fun, little bouncy mushroom kind of thing to add an extra gameplay

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mechanic into our game.

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There we go.

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I'll see you in the next lecture.