I’m hoping you mega brains got a decent answer for this one.
I’m working with actionscript, but there’s no need to give me a code-based answer. Just a logical solution will do.
Object A starts at scale 0; At this point it has a velocity of 65;
Object A dies at scale 160; At this point it has a velocity of 0;
Object A scales up from 0 - 160 by increments of 0.25. Kinda want velocity to change as scale changes, keeping to the equation above…
How do I go about of finding intermediary values for velocity throughout the Objects different scale values?
Driving me a bit nutty.
Thank you in advance.
Ugh, I don’t know if this helps. But could you just store the previous
function move() {
prevScale = scale;
scale = someFunction();
dscale = Math.abs(scale - prevScale)
velocity += dscale * some constant
}
That code would make the velocity change in proportion to the change in scale. Or you could just make velocity some function of scale, unless you want other things to act on velocity.
Oh nvm I reread that. Maybe something like
for v is velocity and s is scale:
v = (65/160)(160 - s);
That way at a scale of 0 the velocity is 65, and at a scale of 160 the velocity is 0.
The scaling is also linear, so it occurs at a constant rate.
at the rate of .25 decrements, scale will change 640 times… then, 65 / 640 = 0.1015625
so,
velocity -= 0.1015625; //might work…
i dunno… there might be a better way, or it’s completely wrong. heh.
EDIT: doh, too slow. :-o
Thanks buddy, that works just fine.
If you’re looking for a slightly faster, but less general solution than the post after mine looks pretty good too. Consider just using that number.
