WigetSprite.setLayerTransform does not work from update loop

[danni.coy]

I can get get WidgetSprite.setLayerTransform to work when called from a callback but when I try to call it from my main update loop (for say a layer that tracks the location of an object dynamically) I don't see any change in the layer.

[manguste]

Could you provide us with a test scene to reproduce it?

[danni.coy]

I figured out how to get around it.

I set up a callback for GUI_CHANGED

and then ran Widget.runCallback(GUI_CHANGED); in my update loop.

 

something like the following should reproduce the problem:

 

WidgetSprite sprite;
Image image;
int testlayer;
int back =0;
int pos = 5;

int init() {
 sprite = new WidgetSprite();
 image = new Image("library/textures/building/library_rubber_d.dds");
 sprite.setImage(image);
 testlayer = sprite.addLayer();
 sprite.setLayerTexture("library/textures/building/library_gold_clear_s.dds");
 engine.gui.addChild(sprite,GUI_ALIGN_CENTER);
 sprite.setLayerTransform(testlayer,translate(vec3(pos,20.0f,0.0f));
 return 1;
}
int update() { 
 sprite.setLayerTransform(testlayer,translate(vec3(pos,20.0f,0.0f))); 
 if(back==0) {
   pos += 5;
   if(pos > image.getWidth() {back = 1};
 } else {
   pos -= 5;
   if (pos <= 0) {back = 0;}
 }
 return 1;
};
int shutdown() { return 1;}

[manguste]

GUI_CHANGED is not supported for WidgetSprite since there is basically no state that can be changed for the image.

Our developer has created a nice test scene with WidgetSprite callbacks for you. Hope this helps.

test_widgetsprite.cpp

test_widgetsprite.world

[danni.coy]

GUI_CHANGED is not supported for WidgetSprite since there is basically no state that can be changed for the image.

Our developer has created a nice test scene with WidgetSprite callbacks for you. Hope this helps.

 

That's more or less what I had already figured out... Thankyou for your help :)