Calc waypoint

Hi,

I have an object at some known location and now I want to move it 10m forward (in the direction it is currently pointing). The object could be rotated, so I don't know which axis I need to change

I looked at llRot2Fwd but I'm not sure if that's what I need. I also just tried this, but the output seems wrong:

        vector p=llGetPos();
        llSay(0,"Current Pos: " + (string)p);
        p.x+=10;
        p*=llGetRot();
        llSay(0,"New Pos: " + (string)p);

Output (with object rotated at z=315):

Object: Current Pos: <226.50000, 74.00000, 91.00000>
Object: New Pos: <219.55660, -114.90490, 91.00000>

The X component looks ok, but the Y does not make sense.

Any ideas?

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Underlying issue: I am trying to calculate a waypoint for a non-physical object. I can move an object from A to B but I am trying to calculate B so that I just keep relative waypoints and calculate absolute coordinates just before I actually move the object.

Thanks -2fast

Rotations either completely make me crazy or they're really, really easy.. This, I think, is one of the easy ones.

10m (in .x) in front of the current object is "llGetPos() + (<10.0, 0.0, 0.0> * llGetRot());"

edit: I think what's wrong with your code above is that you're multiplying the current position by the rotation instead of the offset (10m in x) by the rotation.

That did exactly what I need - cool!

Out of curiousness, I moved the 10 from X to Y and had the same result. Does it matter which I use?

Thanks -2fast

Yes. It should very much matter!!

You sure you saw what you thought you saw?

If you want to use llRot2Fwd(), I think

llSetPos(llGetPos()+10.0*llRot2Fwd(llGetRot()));

should do the trick.

That will move the object 10 metres in whatever direction the red arrow is pointing if you examine it in the edit window with the local rather than world ruler mode turned on. Or, to put it another way, whichever way face 2 is pointing if it's a cube

I'll check again - ever since the calculations started working I have been busy on the underlying project It's working really well!

This approach works well too - I think I was probably thinking of this in the first place, but was not able to figure it out. Nice explanation too

When Would This Update 1.32.1 Be Available?
I Can Not Logg In World Was Going On?

ummm, wrong thread maybe?