Help with calculations!

[J3sseM]

Hey guys!

To cut it as short as possible:
My player is black silhouette and when the player walks under triangle shaped light, I want to highlight outer lines of player.
To do that "drop shadow" with correct settings looks pretty good. Basically graphical side is all set, but need help how to calculate following:

Angle.
When player is in the middle of a light triangle, the angle of drop shadow must be 180 so the light comes from straight up.
The angle should go from around 240 (Left side) to 120 (Right side) so that it's 180 in the middle.
My light triangle is hanging from the ceiling and slowly moving from side to side.
I have action point set in the middle of a triangle which I have been using when trying to calculate the angle.

So I have paired the effect parameter "angle" to a value which I have been trying to calculate.
I think there is simple solution for this. Currently I'm calculating my players x position, and minus from it my lights action point. I use ABS so it won't go to negative numbers. But I'm having hard time to make it work in specific range.

Any advise?

- Jesse

[J3sseM]

Huh again!
I think I figured it out!
I did it like this:
Player is overlapping with light_system
X position of player is lower than XActionPoint( "light_system" ) = Abs(X( "player" )-XActionPoint( "light_system" ))/4+180

And for greater values:

X position of player is greater than XActionPoint( "light_system" ) = (XActionPoint( "light_system" )-X( "player_trigger" ))/4+180

It works!
But I would like to hear if you have more sophisticated way to do it.

EDIT: Oh yeah still gotta figure how to do similiar thing with it's alpha, so it only fades in and out in light.
It seems when I try to divide numbers it does not work probelly. Only displays full numbers. Hymm.

- Jesse

[J3sseM]

I got it working by doing it manually.
Anyway I don't understand, when I duplicate the object to use it with other lights, only the last duplicate works? Why?