SC2Mapster

Right now I am trying to make a custom player health bar. My idea for the trigger is this...

Dialog - Set healthDIALOGimage size to (% of Unit HP, 50) for (All players)

The only problem is, I can't find anything in the triggers that 'points' to a % of a units life.

Sorry, this is tripping me out. Not able to find an arithmetic that I can plug into the integer variable for the size of a dialog image. The only variable and/or type of arithmetic the trigger will accept is Integer. And the value of Life(Percent) is a -Preset Unit Property. So I either need a conversion (which I can't figure out either) or I am missing something.

Ok, making a little bit of progress. It's somewhat working. Now I have two problems.

1. The trigger appears to only run once.
2. The bar goes from full to almost gone on the first hit.

Update Health Bar
    Events
        Unit - Any Unit takes Fatal or Non-Fatal Any damage (from Any effects)
    Local Variables
    Conditions
        (Owner of (Triggering unit)) == 1
    Actions
        Dialog - Set healthDIALOGimage size to ((Integer(Current Life Percent)), 50) for (All players)

I got it working, sadly though I had to "steal" the trigger from another map. I don't know how or why it works. At first I tried to recreate the trigger by glancing but I couldn't. I hate using triggers that I do not understand, so can someone please explain how this trigger action works?

        Dialog - Set healthDIALOGimage size to ((/ ((* (840, (Integer((Picked Heros Life (Percent) (Current)))))), 100)), 67) for (All players)

I know the first two sets of parenthesis are from the Arithmetic Multiple (Integer) functions. However, what I don't understand is how the number 840 is placed where it is. When I tried to duplicate manually, there was a red word there (Values). Each time I clicked that word it added a variable following the word Values. I couldn't get the word to go away.