I have a few questions, and thought I'd compile them to a list
rather then spamming the dev list loads. If I get an answer others
may have use for, I can post that as a separate entry later.
OK, let's go.
1 > Let's say I have a sprite moving around using two random nodes,
one for X and one for Y, possibly also one for Z but I doubt it. I
would like to orient the sprite to the direction it travels. In
other words, can I have something with a 'front' move 'forwards'?
2 > Creating trails that fade. Is this possible? I thought it may
be if I used the Replicate in Time patch, but can't seem to get it
working. Imagine a sprite moving around, I'd like to be able to set
a length and have a tail emit to that length.
3 > Enabling with Audio. I'd like to have sprites turn on (Enable)
when a certain input level on the audio input node is achieved. I
can't figure this one out, I've tried everything I can think of with
ranges, multiplexer etc. No joy.
Conditional -> Counter -> Enable. This will be cheaper than JS.
4 > Gravity, or attraction. Is this in any way possible, even as
a fake? Let's say I have some sprites, I want them to slowly move
together over time. Or have some sprites move toward something
else, I'm not fussed what. Basically, can one thing attract another?
5 > Hold and move. Imagine a sprite, it moves to a random point
slowly, then pauses for 2-3 seconds, then moves to another random
point, this continues. I can get it all working, but can't get the
pause/hold part working.
Check /Developer/Examples/Quartz\ Composer/Compositions/Conceptual/
Random\ Value\ Random\ Interval\ 2D.qtz for an example of how to do
this using patch logic. Otherwise, you could do the same thing using
JavaScript.
// global variables
x = 0;
y = 0;
duration = 0;
startTime = 0;
// main
function (__number x, __number y) main (__number dMin, __number dMax,
__number xMin, __number xMax, __number yMin, __number yMax, __number
patchTime)
{
var result = new Object();
// if we have a new duration or enough time has passed
if ((duration < dMin) || (duration > dMax) || (patchTime - startTime
> duration)) {
// set the start time
startTime = patchTime;
// randomize our duration and position
duration = rnd(dMin, dMax);
x = rnd(xMin, xMax);
y = rnd(yMin, yMax);
}
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