Making a sinus function?

[Twin Matrix]

Hi~ ^^

I have a parallel process to change the opacity of an event. I'd like to change it from 0 to 255 to 0, etc. like a loop. I was thinking, wouldn't this be possible with a sinus math thing, instead of making it with switches, etc. that turn on when it hits 255 so that it goes down instead of up and then off again once it hits 0? And then multiplying the sinus by 255. :3

 

[Zekallinos]

Math.sin(x) => float
Computes the sine of x (expressed in radians). Returns -1..1

Note that you may need to have X/(180/PI) to have X be considered in degrees.

Edit : You will also have to call the opacity change through call script, of course. Look in the interpreter how you can call that.

 

[Twin Matrix]

Hi~! Thanks for your reply. ^^

So it would be:

Math.sin(x) => float

$game_map.events[1].opacity = float

Actually, I'm not quite sure how to work with the x? How will it remember the previous value of x? :s

 

[arev]

Hi
"x" must be changing to get actual sine output. I usually put Graphics.frame_count there, multiplied by some other constant factor to adjust the frequency of the output changes.
[rgss]x=128+128*Math.sin(Graphics.frame_count*0.05)
$game_map.events[1].opacity = x
[/rgss]
You may need to add:
[rgss]attr_accessor pacity
[/rgss] to Game_Event/Game_Character class for this to work.

 

[Twin Matrix]

Thanks, it works! ^^