I want to give the player a potion effect and I found this code:

 

player.addPotionEffect(new PotionEffect(int par1, int par2, int par3, boolean par4));

 

What do the 4 arguments mean?

If I COULD open this class, I wouldn't ask, what the parameters mean. When I try to open a specific class by holding the mouse over the methode name, eclipse always says, the attached source could not be found or something like that  :'(

 

But thanks for you help!

I only ran "gradlew setupDecompWorkspace eclipse".

I'll try it again.