How do I make a breathing system underwater

I wanted to know how I could make it so when the player is under water his breath starts going down, then 0 he dies. when he comes up I don't want the water to kill him because he is still overlapping the water.

Hey, I would do this by using system 'Pick overlapping point' with water and the player imagepoint. You can put an image point on the player's head and say if water (object) is overlapping player.imagepointx, player.imagepointy then run the drowning mechanic else set breath to full. Instead of an else you could also use the same event and invert it, if water(object) is not overlapping player at imagepoint on the head. So if he is overlapping the water but has jumped out (his head is not overlapping) then he should breathe again.

It does not work still here is a video of me showing you I must be doing something wrong. dropbox.com/s/25sumzfv2fni388/2018-08-22%2017-54-54.mp4

The issue here that you need to check the player overlaps the water completely or not.

I use those condition to check it :

And this is my example : drive.google.com/open

Thanks