world bound

[Yanifska]

Hi, I am trying to make a game in which the world should be vertical and upward.

 

however since the "pivot" of the world is on the top left corner I am not sure how to do that.

When I increase the height then the world grows downward.

Is there a way to invert the y axis somehow ?

 

Does that question makes sense ?  Should be easy right ?

 

Thank you

[Horizonicblue]

I think you can use world.setBounds and define starting x,y coordinates

and then use camera.follow() on your player to move the view around the world.

 

Phaser example

http://phaser.io/examples/v2/camera/camera-view

[Yanifska]

Yes I already did something like that

my problem is with set bound, when I set a higher size, the game will be going downward

what I did was to move the world up

I was afraid it would mess with the coordinates of my objects but it seems fine.

Maybe because they are in screen coordinate ? Not sure

 

anyway thank you

[MichaelD]

If that is the case you can start at the lowest point and move towards the top, meaning your y = game.height (lower bottom)

[drhayes]

This might seem terribly hacky, I don't know... but what if you rotated your Stage 180 degrees? Or set its y scale to -1? Does that work?

 

Basically, the data doesn't *really* matter, it's how it's shown. If everything in the library makes the world grow down then just display it going up, if that makes sense.

[Yanifska]

MichaelId solution is working for me, I thought also it would mess up the coordinates, but everything seems fine for now.

And that' why I don't want to rotate the world, I am afraid it will mess up all the coordinates and trigonometric caculations...Not sure what is the best practice

 

I tried to set the world bound to -2000 height but it didn't work. It needs a positive value I think, or the world size need to be greater than the game size.