Resizing Game Problem

[SamYan]

Hi, i'm looking to get any solution form resizing the 'game' correctly in desktop and mobile screens but no way. I get the background image (sprite) non centralized and zoomed stage. Anyone can  tell me please what's the wrong?

CSS

body {
    background-color: rgb(0, 0, 0);
    width: 100%;
    height: 100%;
    overflow: hidden;
}

#pixi-canvas {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

 

JS

const logicalWidth = 1280 // window.innerWidth;
const logicalHeight = 720 // window.innerHeight;

// Init Application
let app: PIXI.Application = new PIXI.Application(logicalWidth, logicalHeight, { backgroundColor: 0x2c3e50, roundPixels: true, resolution: window.devicePixelRatio, autoResize: true });

app.view.id = 'pixi-canvas';

// Add canvas to DOM
document.body.appendChild(app.view);

{ ... }

let background: PIXI.Sprite = PIXI.Sprite.fromImage("bg");

rootContainer.addChild(background);
app.stage.addChild(background);

{ ... }

this.resizeHandler(app.stage, app.renderer, logicalHeight, logicalWidth);

window.addEventListener('resize', () => {
	this.resizeHandler(app.stage, app.renderer, logicalHeight, logicalWidth);
});


private resizeHandler(stage: PIXI.Container, renderer: any, logicalHeight: number, logicalWidth: number) {
	const scaleFactor = Math.min(
		window.innerWidth / logicalWidth,
		window.innerHeight / logicalHeight
	);

	let newWidth: number = Math.ceil(logicalWidth * scaleFactor);
	let newHeight: number = Math.ceil(logicalHeight * scaleFactor);

	console.log('size', {w: logicalWidth, h: logicalHeight, newW: newWidth, newH: newHeight, scaleFactor: scaleFactor});

	renderer.resize(newWidth, newHeight);
	stage.scale.set(scaleFactor);
};

 

RESULT

[Jonny Shaw]

Can't say this is the 100% correct way to do it, but have run it this way for the last couple of projects...
 

document.body.appendChild(this.view);
window.addEventListener('resize', this.resize.bind(this));
this.resize();


    resize() {
        let current = { width: this.renderer.width, height: this.renderer.height };
        let ratio = current.width / current.height;
        if (window.innerWidth / window.innerHeight >= ratio) {
            var width = window.innerHeight * ratio;
            var height = window.innerHeight;
        } else {
            var width = window.innerWidth;
            var height = window.innerWidth / ratio;
        }
        this.view.style.width = `${ width }px`;
        this.view.style.height = `${ height }px`;
    }

[SamYan]

23 minutes ago, sHAYM4N said:

Can't say this is the 100% correct way to do it, but have run it this way for the last couple of projects...
 

document.body.appendChild(this.view);
window.addEventListener('resize', this.resize.bind(this));
this.resize();


    resize() {
        let current = { width: this.renderer.width, height: this.renderer.height };
        let ratio = current.width / current.height;
        if (window.innerWidth / window.innerHeight >= ratio) {
            var width = window.innerHeight * ratio;
            var height = window.innerHeight;
        } else {
            var width = window.innerWidth;
            var height = window.innerWidth / ratio;
        }
        this.view.style.width = `${ width }px`;
        this.view.style.height = `${ height }px`;
    }

Thanks for response but i get the same result. Not working.

[SamYan]

Nobody can help please?

[jonforum]

i dont know if this can help you because am not fully understand, maybe more information can help.
But here how i add zoom engine with pixijs and how the game are responsive to the node js app resolution and redimention

https://github.com/djmisterjon/PIXI.ProStageEditor/blob/master/js/plugins/core_Camera.js
 

[SamYan]

10 minutes ago, jonforum said:

i dont know if this can help you because am not fully understand, maybe more information can help.
But here how i add zoom engine with pixijs and how the game are responsive to the node js app resolution and redimention

https://github.com/djmisterjon/PIXI.ProStageEditor/blob/master/js/plugins/core_Camera.js
 

Thanks for response but still not working. I'm looing and it's the stage scale problem (app.stage.scale). I can't calculate the aspect ratio for stage.

 

IVAN I NEED YOUR HELP. ?

[jonforum]

to get ratio of scale based on your resolution you can create a custom  global method 

 

    // Get a ratio for resize in a bounds
    function getRatio(obj, w, h) {
        let r = Math.min(w / obj.width, h / obj.height);
        return r;
    };

 

this will based on you max resolution game. In 2d sprite game, alway make ressource more resolution from what you really need for take zoom.

Also Example triks on my side is 1920x1080 max resolution screen, but i build all my ressource for a 8k game, so when i zoom, i don't have pixel issue or need compute on another textures.

 

so 

app.stage.scale.set ( getRatio(app.stage,maxWidth,maxHeight) ); 

should help you 

[SamYan]

7 hours ago, jonforum said:

to get ratio of scale based on your resolution you can create a custom  global method 

 

    // Get a ratio for resize in a bounds
    function getRatio(obj, w, h) {
        let r = Math.min(w / obj.width, h / obj.height);
        return r;
    };

 

this will based on you max resolution game. In 2d sprite game, alway make ressource more resolution from what you really need for take zoom.

Also Example triks on my side is 1920x1080 max resolution screen, but i build all my ressource for a 8k game, so when i zoom, i don't have pixel issue or need compute on another textures.

 

so 

app.stage.scale.set ( getRatio(app.stage,maxWidth,maxHeight) ); 

should help you 

 

 

Thanks  for response but not working.

 

I have tried to give the max size of the background to my view and now it's working, but when i try in mobile screen, fails again.

 

http://jsfiddle.net/om0hskfy/

[jonforum]

Are you able to send a printScreen or preview of result what you target?
Your sprite does not mean much, not knowing what it should represent.
If you can send a target result vs current result , this can help to understand what your target behavior.

[SamYan]

35 minutes ago, jonforum said:

Are you able to send a printScreen or preview of result what you target?
Your sprite does not mean much, not knowing what it should represent.
If you can send a target result vs current result , this can help to understand what your target behavior.

It's background:

 

desktop screen:

 

mobile screen:

 

[jonforum]

hum , i don't  know, the code i share you work for my side.

Example here at right, i have my app set to 1920x1080 resized to to fake mobile frame ~~767x431 and it work .
i have no idea where is your issue, it strange, maybe we don't have similar context.
humm...
 

[SamYan]

i dont understand, why resizing canvas, its not resizing the stage and children containers correcty. 

[jonforum]

yep me to,  try with  @ivan.popelyshev  it a magic russian dev from pixiJs .
But on my side i was try but i can not help you more sorry my friend.

[SamYan]

4 minutes ago, jonforum said:

yep me to,  try with  @ivan.popelyshev  it a magic russian dev from pixiJs .
But on my side i was try but i can not help you more sorry my friend.

Thank you very much!

[ivan.popelyshev]

Your code looks correct, I don't see a problem. Can you please make a fiddle?

[SamYan]

43 minutes ago, ivan.popelyshev said:

Your code looks correct, I don't see a problem. Can you please make a fiddle?

 

https://codesandbox.io/s/n5pkq5vjpj?moduleview=1

 

[ivan.popelyshev]

The only mobile device I have shows me black screen. I dont have ideas how to help yet

[SamYan]

3 hours ago, ivan.popelyshev said:

The only mobile device I have shows me black screen. I dont have ideas how to help yet

Ivan, 

 

Do you know any way to manage the diferentes screen in pixijs ?

[ivan.popelyshev]

No, and there are no articles about that. Many people solved it on their own but nobody wanted to make a plugin.

Your approach has to work, i dont know what is wrong there. You can join pixijs slack and ask people there.

[bubamara]

@SamYan is this working for you? http://jsfiddle.net/om0hskfy/8/

[SamYan]

2 hours ago, bubamara said:

@SamYan is this working for you? http://jsfiddle.net/om0hskfy/8/

Thank you friend! It's working!!

[bubamara]

You're welcome. And if you want to go further, you can implement 'safe area', which is nicely explained here : http://www.williammalone.com/articles/html5-game-scaling/

[SamYan]

5 hours ago, bubamara said:

You're welcome. And if you want to go further, you can implement 'safe area', which is nicely explained here : http://www.williammalone.com/articles/html5-game-scaling/

Finally i got it! Thank you friend!