How to modify the style of the progress bar that comes with c3？

I want its background to be dark red and the value of the progress bar to be green

It's difficult to style form controls, and there are many other problems with them.

Use TiledBackground object instead, it's very easy - just change its width.

On every tick -> Bar Set width to 300*(Player.health/100)

where 300 is the maximum width, and 100 is the maximum health.

Here is another example:

https://howtoconstructdemos.com/simple-healthbar/

LOL, just beat me to it.

thanks i will try it

Another question, I use different elves, they are all in the same family. I want to place a health bar on their heads after they are created. I use the same resource for this health bar. How do i set up their relationship

If there was one elf sprite, the easiest solution would've been creating a container with the healthbar.

With multiple sprites I suggest using the new scene graph feature.

On Elves Created -> create a healthbar and add it as a child to the elf. When elves' health changes, pick child instance of the healthbar and update its width.

I know this, but my game is a turn-based plus strategy type, which is not very suitable for fighting games.

It doesn't matter.. Pin or add healthbar as a child to each character. You can use "Pick child" and update its width when needed.

If you put the health bar and elf into a container, a health bar will always spawn with an elf. Then, on creation, do what dop2000 is saying and pin or add the health bar as a child of the elf. I built an example that uses the container for a different forum question:

drive.google.com/file/d/1vObtjdJppTivblySf-rn0Vx4bUH2fYTn/view

Most of the example code is unnecessary but take a look at the hunger and thirst bars and how they are related to the Creature.