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  • We'll see if this is gonna live.

  • It looks like it's gone life, just double checking.

  • Everything would like to somebody to give me some feedback as to whether the audio is okay and you can hear me.

  • That would be nice on welcome.

  • Yes to the 100 k live party, Thank you very much.

  • I see there's been quite a few people waiting this afternoon.

  • So hello to everybody in the chat.

  • If you see me looking at different windows, it's because I've got various chaps from different platforms.

  • Exxon, Ojai.

  • We've got some people recognize some familiar names already.

  • That's good.

  • S O.

  • This is to celebrate Swell 2019.

  • And it's been a good year for the channel.

  • It's been a great year for the community.

  • We just saw a community showcase, loads of cool things on dhe.

  • I think what we're going to do today is a code it yourself, which has become a bit of a tradition on this channel.

  • Whenever we've got a milestone to celebrate, I subject myself to this ritual humiliation off writing bugs live.

  • So what we're going to do is code a sh mop or a shooting up on it's going to be in the vein of those like crazy Japanese ones with bullets all over the place on.

  • We'll see how far we get because I'm not going to stream for hours and hours and hours, so we'll see how far we get today.

  • Hopefully, we'll get a nice framework in place.

  • And that's really what I'm aiming for because I've got a little prototype have put together.

  • So I'm not coding it completely from scratch.

  • We shouldn't be getting two lost like we did in the 50 k.

  • Remember getting lost there?

  • That was embarrassing.

  • But what I'm hoping to provide is this framework, which is really extensible for creating your own shooting up.

  • So I'll just have a quick glance at some of the chaps just to see what's going on.

  • Well, it's quite a few people have turned up already.

  • That's that's really good.

  • Eso thank you to those with lots of nice messages.

  • I'm not going t read them all out Now I will say some things before we start.

  • There is a prize draw.

  • The link should be below the video that you're currently watching.

  • There are 4 25 great British pound steam vouchers up for grabs.

  • It's za looking dip draw on.

  • You've got to answer a silly question, which is to also be on the screen.

  • I think for you to see read only my messages.

  • There you go, Red cap, right?

  • So I think we'll just get started.

  • So the idea is going to be a shooting up like a side scrolling, shooting up with lots and lots of bullets.

  • But I was quite keen to have a think about how we structure an engine.

  • For that.

  • They'll be a few of the announcements as well.

  • I'm going to keep getting distracted until we get settled.

  • Thanks for the congrats.

  • What are we doing?

  • We're programming a shooting up game in this style off 1942 which is that really horrible one for the nest.

  • But we'll be adding a bit more Flor to It's certainly a lot more particles because we like perfect ALS in these life specials.

  • I know some of you like to code along.

  • That's fine.

  • I will be probably going at quite a pace, but I think the gist will be quite acceptable for most of you on DDE.

  • I'm going to be leaning quite a bit on.

  • So what's his so called modern C plus plus in order to get things done?

  • And this has come out of a drive of what?

  • Of witnessing some conversations on the discord for about people not necessarily exploiting some of the things that modern C++ has to offer.

  • And hopefully I can demonstrate through the course of this video that if you really do lean on the tools, you can get things working very quickly, as much as possible.

  • I'm trying Thio Keep up with the chap, but it is going a little bit faster.

  • If I do miss your messages, they're all recorded.

  • And that's one of the reasons I like to put the chat on the screen so I can go back and look at the mall later.

  • I do like to try and read them all, because sometimes you suggest some really wonderful things.

  • There's a few moderators in the chat already.

  • In fact, I'll just make this guy moderator.

  • Now I can see that he's here.

  • The Andi I think we'll get started, so I'm going to be using the pixel game engine now.

  • You should all be very familiar with this from the channel, the pixel game engine, rather excitingly lows of announcements on it.

  • It's going to get a bit of an update next year.

  • I got some plans for it.

  • It will be considered pixel game engine, too, but it will be 100% backward compatible with pixel game engine one.

  • There's a few reasons, but I'll save that for for the new year.

  • But anyway, yesterday were using pixel game engine what 11 final announcement to make?

  • Because I'll make this a stars and I'll make it at the end as well.

  • Let me just bring in this window here so you can see through.

  • The community has decided that a one man coder community blawg platform is a good idea on dhe.

  • I tend to agree with them that so I'm now hosting this at community 10.11 co dot com.

  • On if the idea is that the community can write articles on get them up there dead logs or reviews of gains technology, anything that interests us is a community.

  • Really.

  • It's early days, yet there's not very many articles on it, but if you want to write something and get it seen because that gets a little bit of traffic.

  • Hopefully.

  • Now, you know, they've got a bit of a platform to push what the community is developing.

  • Maybe, you know, be nice to get this sort of underway and get people involved.

  • So if you if you want to write some articles register, reach out on the discord one way or another, contact me on, we can see about getting them posted.

  • Its got things like source code highlighting and images and things.

  • S o just wanted to get that in there before.

  • We should not close that down now.

  • Right.

  • Are we ready?

  • I think I'm ready for a mouthful of water.

  • Quite a few people here and I don't often stream on YouTube.

  • I tend to stream on twitch.

  • Twitch is a little bit more accessible for streaming.

  • Right.

  • So we've got a basic pixel game engine application appear I'm using 6 40 by 4 80 resolution on my pixel to screen ratio is going to be too on.

  • All it does is create an empty window.

  • Now, if we're going to create a shooting up, I think the first thing we're going to need is a ship so I will be gone soon.

  • Occasionally my prototype.

  • But I just want to make sure I get the variable names that I come up with consistent in the first place S o for the ship.

  • All I really care about is where the players position is s o.

  • I'm going to use a O l f l c vector floating point to DIY type.

  • And I used these quite a lot.

  • Now on it.

  • Call Aunt VI.

  • Play it.

  • Paul's very simple stuff on.

  • I'm going to need a sprite to draw what the player ship looks like.

  • It's gonna move my microphone slightly.

  • So do let me know if it's a problem on bridges, and I will see spring type here.

  • Create appointed to SP R Player now because I'm doing this live and I want to know quite a bit to get through tonight I will be cutting some corners regarding initializing variables and deleting things.

  • But, you know, give me a break.

  • Eso want to load that spite And I've created four graphics actually got them from an asset pack on humble bundle on.

  • I'm just going to use these basic graphics for tonight s I want to load this sprite, and I've got them in a subdirectory.

  • GI effects And I've called it 100 K player, one PNG.

  • So we've got the Sprite, and I think we'll add some rudimentary control in on user update to move that sprite around on the screen.

  • So we're gonna start very simply here.

  • I'm will build on it as we as we go through the video.

  • Hopefully, this will be available as a VOD straightaway if you if you're late or you just want things to slow down a little bit.

  • So I'm going to control the ship with the W A S and D Keys S o.

  • If we get key, we'll see w now I'm going don't to respond to the events.

  • I want to respond to the keys actually being held down.

  • That gives it a more really time field.

  • So if that's held down, if it w I wanted the player to move towards the top screen.

  • So player past, get all the typos now, can't edit these out.

  • Player past minus now.

  • How fast are they going to move?

  • Well, I don't know yet, so I think we'll have another variable which is the player speed because we might want to tune that later.

  • Let's just default that it's something ridiculous is probably far too high for now.

  • F place speech.

  • So I want to adjust the wine, coordinate, play speed Now, whenever we're doing movement.

  • And if you watch the channel on gathering the people that are here tonight or not, brand new to the channel, so you'll know that we use f elapsed time Thio modulate the movement across the screen.

  • So we got it going up the screen.

  • There you have it going down this screen down being positive.

  • Of course, when we hold down the S ky on, we probably want the same for the X axis as well.

  • So it will be the A and D Keys A and deal day on instead of why change those by X?

  • Very nice.

  • So very simple.

  • I got that the right way around A is going left.

  • So yes, that's going to be reducing the value of a quick glances at the chat fruit pastels or jelly tucks.

  • I really do like both, but I think you know occasionally want to treat myself to jelly tots.

  • That's an exceptionally British right s.

  • So now I've got to the player movement.

  • Let's just draw the play.

  • And the reason I'm showing this first is it's also a nice demonstration of just how simple we can do things using the pixel game engine s.

  • Oh, well, we'll basically have in our main loop here, the top will have user input.

  • You know what?

  • We'll flag these input in the middle here will have all of the mechanics and movement.

  • I'm going to call those.

  • Not that I'm going to call these gubbins.

  • Oh, just got a subscriber via twitch.

  • Thank you, Lord Chrissy, thank you very much.

  • We'll have Gubbins for there and then we'll have a display in the bottom.

  • Gubbins is an English word.

  • I let I let some of you look that up.

  • Oh, hey, clarified.

  • Nice to see that, right?

  • What was I doing?

  • I was drawing a ship.

  • Got distracted by a subscriber on twitch.

  • I'm drawing the player, and that's very simple because it's just going to be drawing the sprite at the location that we've just been creating.

  • So take the player.

  • Pause, variable.

  • Andi, I'll give it this Sprite player on.

  • I'm not going to scale it anything.

  • So that's it.