This returns a label handle which allows you to remove, reposition, or replace the label later.
In addition to all the features of wesnoth.print, you can now specify where the label appears onscreen, as well as a fadeout time separate from the duration.
You can also anchor the text to an edge or corner instead of centering in on the screen,
specify the maximum width it can occupy as an absolute width or a percentage,
and specify a background colour and transparency.
It includes a demo scenario that demonstrates many of the capabilities of the API.
To play the demo scenario, run with -toverlay_text_demo or select it from the in-game test list.
In 1.14, the default was 50 frames, or around 1.7 seconds. In 1.15.4, commit
a9d9e48c72 changed the interpretation of that
number to milliseconds, but missed that this affected the [print] tag; this
left the default time that the text is shown as an unreadable 50ms.
All places in mainline that use [print] specify a duration, so the default
isn't used. Here I've plucked the new value from UtBS S09, where it was chosen
in f405b916a1.
The special value "unlimited" is now recognised as meaning to display the text
until it's removed by another [print] tag. The tutorial uses this special case
to display the text until the player does the requested move - originally it
displayed the text for 10000 frames (around 40 minutes), which still seemed
reasonable when it changed to 10000ms.
- Removed need for quick trait by spawning quantain next to Delfador
- Disabled movement point tracking due to #3344
- Use only one [label] tag to place both labels
- Removed id's of later quintains, as they are not used
- added some whitespaces
[ci skip]
(cherry-picked from commit 74b39ef3d6)
