Impairing turret angle

[EE]

Hi y'all, what's cookin'!?

I'ma cookin' tanks & turrets!

My little problem is that I'm having some trouble detecting if a target is within "angular proximity" to the turret.

The turrets can point in any angle that is within the tank's directional angle(0-360) +45/-45.

My question being, what would be the proper way to determine if an object is within +-45 degrees from the tank's angle?

The shifting nature of what is considered angle=0(up or right) is totally messing with my head.

//EE


Edit: Solved it! (Compare two general values)
+Abs(((TargetAngle-TankAngle+540) mod 360)-180) <= 45

[Eliyahu]

The angle 0 is right, always. Cosine determines X and sine determine Y, cos(0)=1, sin(0)=0, so you're left with a horizontal line which goes towards the right.

The problem you'll encounter is that in MMF2, angles go from 0 to 360. Now an angle of 5 is within 45 degrees of 355, but the problem is determining that. I have done it several times, but I don't believe I have an example on hand. I'll try to redo it and repost it.

[Eliyahu]

Here ya go!

http://www.clickteam.com/epicenter/ubbthreads.php?ubb=showflat&Number=230455

Any questions, ask here, or PM me, I don't care.

EDIT: This is embarassing. I didn't even see you solved it. *facepalm* Well I had a different solution so you can look at it if you want x) But I think I've used your solution as well and it's worked for me. I recall doing it in one line for one of my cannon games.

[EE]

Thanks for the effort!

Perhaps I should start putting my edits in the beginning?

[Eliyahu]

Nah don't do that, that's just confusing. Perhaps I should read more carefully.