How to move the sprite to the top?

[moszis]

Hi Guys,

 

   Is there a way to specify that sprite should go on top (similar to the way its done in phaser)?   I need to have multiple draggable sprites.   Currently the last one drawn is always on top.  So when you are dragging sprites, they will be dragged under the sprites that have been drawn later.

 

  I know it can be easily done by just clearing and redrawing the sprite every tick but it would make it much easier if there was an API to bring it to top layer on mousedown.

 

 

PS:  I know its two dimensional pixel grid(this seems to be common answer to these type of questions).. just talking about APIs here.

 

[bubamara]

PIXI.Sprite.prototype.bringToFront = function() {	if (this.parent) {		var parent = this.parent;		parent.removeChild(this);		parent.addChild(this);	}}

and then :

mySprite.mousedown = mySprite.touchstart = function() {	this.bringToFront();}

[moszis]

Perfect!  Thank you very much!

 

This also gives me enough understanding of pixie hierarchy to solve several other issues.   Very much appreciated!

[mrBRC]

An alternative form.. without prototyping

function bringToFront(sprite, parent) {var sprite = (typeof(sprite) != "undefined") ? sprite.target || sprite : this;var parent = parent || sprite.parent || {"children": false};if (parent.children) {    for (var keyIndex in sprite.parent.children) {         if (sprite.parent.children[keyIndex] === sprite) {            sprite.parent.children.splice(keyIndex, 1);            break;        }    }    parent.children.push(sprite);}}

function sendToBack(sprite, parent) {var sprite = (typeof(sprite) != "undefined") ? sprite.target || sprite : this;var parent = parent || sprite.parent || {"children": false};if (parent.children) {    for (var keyIndex in sprite.parent.children) {          if (sprite.parent.children[keyIndex] === sprite) {            sprite.parent.children.splice(keyIndex, 1);            break;        }    }    parent.children.splice(0,0,sprite);    }}

uses..

 

mySprite.mousedown = bringToFrontbringToFront(mySprite);bringToFront(mySprite, newDisplayObjectContainer); //pops it out of its original container/parent

and of course..

mySprite.bringToFront = bringToFront;mySprite.bringToFront();mySprite.bringToFront(null, newDisplayObjectContainer);

EDIT: opps... I was using pop incorrectly.. it doesn't take a parameter, so I am using a cross browser legacy compatible implementation. Reference: http://stackoverflow.com/questions/5767325/remove-specific-element-from-an-array/15762329#15762329 

Edited July 16, 2014 by mrBRC

[staff0rd]

addChild (now at least) checks for a parent and removes it, so you can just call this;

sprite.parent.addChild(sprite);

 

[ivan.popelyshev]

@staff0rd

https://github.com/pixijs/pixi-display

[staff0rd]

@ivan.popelyshev

should I be using v4 even though its pre-release?

[ivan.popelyshev]

@staff0rd

We are almost there: https://github.com/pixijs/pixi.js/issues/2642

[imShyness]

This prototyping methode, can it be also used for containers? 

I have about 4 draggable containers and the selected one always needs to be on top.

[ivan.popelyshev]

@imShyness I don't see why not

[labrat.mobi]

on mouse down just add the sprite to stage again, that should bring the sprite froward.. shouldn't that fix it?

[Karan Batta]

Is there any latest efficient way to do this??

i.e. making a graphic object child of its grandparent i.e. removing parent in the ^^linked list^^.

[Dougi]

I've just stored the zIndex on each of the display objects and then when you want to move the display objects to the top you just find the highest zIndex, add 1 and set the zDepth on the display objects to that. Works well and pretty straight forward.  You need to put the display objects in a container and set that as sortable too.

Edited July 29, 2021 by Dougi