Calling function of parent

cocos2d-x JavaScript
1

Hello,

Is there a way for calling function from a child to its parent if you have inherited using cocos model.

Example:

GreatestChildClassEver = cc.Sprite.extend({

ctor: ...
setPosition:  function(pos) {
  this._super().setPosition(pos); // this does not work but I want something equivalent.
}
});
2

@alexgg

I think there are difference between calling function of parent node and parent class as my experiences.

parent node

var parentNode = new cc.Node();

parentNode.parentFunction = function()
{
    cc.log("parentFunction");
};
var childNode = new cc.Node();
parentNode.addChild(childNode);

childNode.getParent().parentFunction();

parent class

var childNode = new ExtendedNode();
childNode.setPosition(0, 0);

You should able to use parent class setPosition.

If you want to override the function, you may try this or use other function name.

setPosition : function()
{
    this._super();
    this.setPosition(0, 0);
}

Although, it might be an issue in JSB that cause extended class unable to inherit or use parent class function.

Hope this help.

Please point out if i have misunderstand any.

Thank you.

1 Like
3

You should able to use parent class setPosition.

If you want to override the function, you may try this or use other function name.

setPosition : function()
{
this._super();
this.setPosition(0, 0);
}

Although, it might be an issue in JSB that cause extended class unable to inherit or use parent class function.

This is exactly what I wanted although I did not know about this issue. Thank very much, I think i’ll keep using different names for function inherited.