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'?

if you have its location (x,y,z) and its direction (dx, dy, dz), you can set the rotation using some trig (which is beyond the scope of this reply)

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.

Not sure about replicate in time, but you could make a javascript array (queue, actually) that you feed in current points. It'd be big and ugly, but it would work.

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.

again, javascript may be your friend. if (audiolevel > some_threshold) enabled = 1;

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?

This would also have to be simulated with JS, or possibly the math/math expression patches.

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.

Once again, JS :) combind with a stopwatch or sstem time, arbitrary delays are entirely possible.

feel free to pm me if you want some clarification/examples.

--
[ christopher wright ]
[EMAIL PROTECTED]
http://softpixel.com/~cwright/
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