JS Lab2017, 25 марта, Одесса Юлия Пучнина (JS Engineer at Lifestreet Media) PhaserJS и что он умеет Написание игр очень отличается от привычной веб-разработки. Во-первых, это красиво: много графики, много эффектов. Во-вторых, это интересно: очень много задач, связанных с производительностью, ведь нам нужно чтоб игры не лагали ни на одном устройстве. PhaserJS дает отличную возможность писать игры практически без боли! Все материалы: http://jslab.in.ua/ Организаторы: http://geekslab.org.ua/

1. Creating a mini-games easily
with PhaserJS
Yulia Puchnina

2. Modern advertising is really interesting!
● over 11 BILLION daily transactions
● over 20 Terabytes of Data Daily
● over 1000 servers
● over 350M unique consumers reached

3. What is game-specific Creative?
● Game content is better than generic
● Video better than screenshots
● Animation better than screenshots
● Playing the game better than Animation

4. Introducing Mini Playable Games
● Less the 1MB total size
● Optimized for mobile devices
● Configurable
● Very responsive
● Everyone like!

5. Our games

6. Our games

7. Technologies
To Write: PhaserJS
To Build: Babel, Gulp, npm
To Optimize: Texture Packer, TinyPNG
No server-side.
No Database.
Pure JS magic!

8. What is PhaserJS?
Very popular open-source framework, with
a very good community and amazing
documentation. Everything you need to
create a game, in one place!

9. What do we need to make heroes ‘live’?
- Gesture
- Movements
- Interaction with user
- Physics like in a real
life

10. What is the animation sprite?

11. How to create sprites for Animation?

12. How to create sprites for Animation?
=> =>
=> game.load.atlasJSONArray

13. Basis for PhaserJS game
● Phaser.Sprites as atoms
● Phaser.Groups as a views(layouts)
● Tween/Animation: to make your characters alive
● Phaser.Signals as event system
● Phaser.States as controllers
● Geometry 7th grade: to work with angles
● Algebra 6th grade: to work with vectors

14. Sprite
const sprite = New Phaser.Sprite(0, 0, ‘my_image’)
sprite.angle = 45
sprite.x = 100
sprite.y = 100
=>

15. Group
const group = new Phaser.Group()
const sprite = New Phaser.Sprite(0, 0, ‘my_image’)
group.add(sprite) || group.create(0, 0, ‘my_image’)
=>

16. Tweens
const sprite = New Phaser.Sprite(0, 0, ‘my_image’)
sprite.anchor.setTo(0.5, 0.5);
game.add.tween(sprite).to( { x: 200 }, 2000, "Linear",
true);

17. Animations
const sprite = New Phaser.Sprite(0, 0, ‘my_image’,
‘frame1’)
sprite.animations.add(‘dance’,
Phaser.Animation.generateFrameNames('dance', 2, 0,
'.png', 1), 30, false);
sprite.animations.play(‘dance’);

18. Signals
sprite.onDoSomething = New Phaser.Signal();
sprite.inputEnabled = true;
sprite.onInputDown.add(() =>
{sprite.onDoSomething.dispatch(param)}}, this);
//and outside you can listen it
sprite.onDoSomething.add((param) => {
this.doSomethingElse();
});

19. States
class MyState extends Phaser.State {
create() {
sprite.onDoSomething.add((param) => {
this.state.start('AnotherState');
});
}
}

20. How to save user’s resources
1. Optimize and compress all images you use
2. Re-use sprites after creation(pool)
3. Play with framerate
4. Don’t forget to destroy sprite if you don’t need them anymore
5. Same about listeners
6. As less active elements on screen, as faster they react
7. Be very care with everything you doing in update method

21. Here you can find some help:
phaser.io
www.html5gamedevelopment.com
stackoverflow.com

22. Questions? Contact me!
yulia.puchnina@gmail.com
https://github.com/probably-kira
https://www.facebook.com/yulia.puchnina