showtext doesnt work with variable

dreidesign · May 27, 2021 at 1:19 PM

Hey guys,

I've got a problem with an action for some hotspots. I would like to show some text on hover. Therefor I've got the showtext plugin, problem is that I can't get it to show the text I want.

No matter what combination I'm using for the variable, showtext got the right style but doesnt show any text. As soon as I enter text by hand instead of a variable its working correct. When checking the variable via "trace" I get the correct response, so the variable isnt empty.

Maybe someone could have a look at the action (problem is at line 22 onhover):

Code

<action name="choose_style" scope="local">
txtsplit(caller.styles, ',', arr); 
set(caller.onclick,remove_style_hotspots(caller.name));


for(set(i,0), i LT arr.count, inc(i), 


txtadd(hstitle, '"', get(scene[get(arr[get(i)].value)].title), '"');
txtadd(hsname, 'hs_style_', get(i));
txtadd(hsurl, '', get(scene[get(arr[get(i)].value)].thumburl));
txtadd(hsposition, calc(view.hlookat),',',calc(view.vlookat),',',calc(view.fov));


addhotspot(get(hsname));


hotspot[get(hsname)].loadstyle(skin_hotspot_choose_style);
set(hotspot[get(hsname)].url, get(hsurl)); 
set(hotspot[get(hsname)].ath, calc(caller.ath));
set(hotspot[get(hsname)].atv, calc(caller.atv));
set(hotspot[get(hsname)].linkedscene, get(arr[get(i)].value));
set(hotspot[get(hsname)].linkedscene_lookat, get(hsposition));
set(hotspot[get(hsname)].onloaded, set_css_id('test'));


set(hotspot[get(hsname)].onhover, showtext(get(hstitle), hotspotTextstyle));


trace(hstitle);


if(xml.scene == arr[get(i)].value, 
tween(hotspot[get(hsname)].alpha, 0.5, 1.2);
tween(hotspot[get(hsname)].scale, 0.38, 0.6);
,
tween(hotspot[get(hsname)].alpha, 1, 1.2);
tween(hotspot[get(hsname)].scale, 0.48, 0.6););


tween(hotspot[get(hsname)].rotate, calc((360/arr.count)*(i+1)), 0.6);
tween(hotspot[get(hsname)].rz, calc(-(360/arr.count)*(i+1)), 0.6);); 
</action>

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indexofrefraction · May 27, 2021 at 1:38 PM

maybe add a
trace(hotspot[get(hsname)].onhover);
and see what you have in there

also this line has a bracket error
set(hotspot[get(hsname)].onhover, showtext(get(hstitle), hotspotTextstyle));

dreidesign · May 27, 2021 at 1:54 PM

Thx for your response.

Can you tell where you see the bracket error? I cant find it.

The trace(hotspot[get(hsname)].onhover); outputs:
showtext(get(hstitle), hotspotTextstyle)

indexofrefraction · May 27, 2021 at 2:43 PM

ah sorry, bracket error was my mistake... all ok

but this : showtext(get(hstitle), hotspotTextstyle) is not ok.

when this executes (onhover) the variable hstitle doesnt exist, thats why you dont get a text.

try this :

calc(hotspot[get(hsname)].onhover, "showtext(" + hstitle + ", hotspotTextstyle)");
trace(hotspot[get(hsname)].onhover);

dreidesign · May 27, 2021 at 2:58 PM

Awesome, that "hack" works.
But why is it needed? Not really getting it.

indexofrefraction · May 27, 2021 at 3:58 PM

its not a hack at all

with this : set(hotspot[get(hsname)].onhover, showtext(get(hstitle), hotspotTextstyle));
you write a string "showtext(get(hstitle), hotspotTextstyle)" into the onhover attribute of the hotspot
the onhover action is executed later and has nothing to do with your choose_style(),
in the scope of the onhover action your variable hstitle is unknown / null
hstitle is defined / used in the scope of your action[choose_style] only

if you wouldnt use scope="local" in choose_style() hstitle would be global
but then all hotspots would use the content of the last iteration, which is wrong, too

... ps: just tested it... this can be really confusing:
set(a,"hello"); trace("a=",a); // hello
set(b,get(a)); trace("b=",b); // hello
set(c,showtext(get(a))); trace("c=",c); // showtext(get(a))
so in #2 get() gets resolved, but not in #3 (if it is nested)

in short: you need to take care when you compose event functions.

dreidesign · May 28, 2021 at 11:50 AM

Awesome, thanks for the detailied explanation.

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