37 lines
696 B
Factor
37 lines
696 B
Factor
|
|
USING: kernel namespaces math opengl.gl opengl.glu ui ui.gadgets.slate
|
|
random-weighted cfdg ;
|
|
|
|
IN: cfdg.models.snowflake
|
|
|
|
: spike ( -- )
|
|
iterate? [
|
|
{ { 1 [ square
|
|
[ 0.95 y 0.97 s spike ] do ] }
|
|
{ 0.03 [ square
|
|
[ 60 r spike ] do
|
|
[ -60 r spike ] do
|
|
[ 0.95 y 0.97 s spike ] do ] } }
|
|
call-random-weighted
|
|
] when ;
|
|
|
|
: snowflake ( -- )
|
|
spike
|
|
[ 60 r spike ] do
|
|
[ 120 r spike ] do
|
|
[ 180 r spike ] do
|
|
[ 240 r spike ] do
|
|
[ 300 r spike ] do ;
|
|
|
|
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
|
|
|
|
: run ( -- )
|
|
[ ] >background
|
|
{ -40 80 -40 80 } viewport set
|
|
0.1 threshold set
|
|
[ snowflake ] start-shape set
|
|
cfdg-window ;
|
|
|
|
MAIN: run
|
|
|