Circular Path

[Nuggs]

Mmmmk... I'm trying to make an object rotate around an ovular (sp?) path using only actionscript, but I'm having some problems

onClipEvent (load) {
	var time:Number = 0;
	var framePerSec:Number = 40;
	var radPerFrame:Number = 0;
}
onClipEvent (enterFrame) {
	framePerSec = parseFloat(_root.fps_timer.f.text);
	//_root.fps_timer.f.text is a text box that tells me the fps
	trace(typeof (framePerSec));
	//this returns number
	radPerFrame = (2*Math.PI)/(framePerSec*60);
	//conversion
	trace(typeof (radPerFrame));
	//this returns number
	time += radPerFrame;
	trace(typeof (time));
	//this returns number
	trace(time);
	//returns NaN
	_x += 2.25*Math.cos(time);
	_y += 2*Math.sin(time);
	//movement functions
}

Can anyone help? It doesn't seem to want to add radPerFrame to time... but all of the vars are numbers

[zenyara]

I'd do it using an array and make a trace editor for it where you click, click, click, click, click out your desired path, then trace and past to your array, then use speed=3 to travel through the array of x,y.

Easy and that way you can make any kind of path you like...

I'll do the code for you if you can't figure it out.

[Vengeance]

I don't quite understand what you're trying to do... Explain a little better.

[GustTheASGuy]

Elliptical you mean.

All you need to do is increment the radians and use sin/cos times its dimensions. I don't see where's the problem?

[Nuggs]

I'm trying to make the time it takes for the object to make a complete rotation equal to 60 seconds, or any other value, but I'm getting a NaN when I try to add radPerSec to time

[GustTheASGuy]

Ohyea. Well then, there can only be a problem with the textbox.

[Nuggs]

Here
This is my problem

Remove the black blur to see the difference
I need to use the fps at runtime in order to change how fast the object is moving or else it will be too slow, but whenever I use that, I get NaN

[GustTheASGuy]

Sigh. Your variable includes the text 'runtime FPS'. To not use display values to indicate state in your code. For good practice atleast.

[Nuggs]

Oh.. that was just for the test... it is not in the real thing, disregard it please. If I pm you the real file will you help me?

[GustTheASGuy]

My point is a string with non-numeric characters evaluates to NaN.

[Nuggs]

I know, parseFloat will only work if the words come after the number, but the text is not included in the actual version, it only displays the frames per second (without the text)

[GustTheASGuy]

In the file you posted if you remove the appended text part it works fine. Well after the delay of ten frames because you're pushing the framerate in an array for some reason.

[Nuggs]

Ah I figured it out. Since the fps timer returned Nan for the first 9 frames, it added that infinite value to time. So when the fps timer returned real values, it could not add the finite numbers to the previous infinite ones.

Thanks so much for your help!

This was bugging me like crazy