Hi Rob,
This looks great - it would be good to have boids in the fluxus
examples :)
Hej Dave,
cool, once i have this local coordination working and some decent code
for behauviors i'd be happy to share it as a fluxus example
Something else related to this that might be useful to know is that the
top 3 vectors in a matrix are the 3 vectors representing the directions,
eg:
thanx! this clears things up a lot!
so m 12, m 13 and m14 then present the global position, nice :)
(define (build-line a b)
(let ((p (build-ribbon 2)))
(with-primitive p
(hint-none) (hint-unlit) (hint-wire)
(pdata-set! "p" 0 a)
(pdata-set! "p" 1 b)) p))
(define (draw-transform m)
(wire-colour (vector 1 0 0))
(build-line (vector 0 0 0)
(vector
(vector-ref m 0)
(vector-ref m 1)
(vector-ref m 2)))
(wire-colour (vector 0 1 0))
(build-line (vector 0 0 0)
(vector
(vector-ref m 4)
(vector-ref m 5)
(vector-ref m 6)))
(wire-colour (vector 0 0 1))
(build-line (vector 0 0 0)
(vector
(vector-ref m 8)
(vector-ref m 9)
(vector-ref m 10))))
(clear)
(draw-transform (mident))
(draw-transform
(mmul
(mscale (vector 1 2 1))
(mrotate (vector 23 40 2))))
cheers,
dave
