Skip to content

Instantly share code, notes, and snippets.

@davidblitz
Forked from mutterer/10PRINT 'rosette'.pde
Last active September 30, 2017 19:04
Show Gist options
  • Save davidblitz/5e99606d50d9d53f1ec4b48fbe5d175f to your computer and use it in GitHub Desktop.
Save davidblitz/5e99606d50d9d53f1ec4b48fbe5d175f to your computer and use it in GitHub Desktop.
// 10PRINT tunnel-rosette Processing 3 code, thanks to @shiffman and @jmutterer!
// 10PRINT rosette Processing 3 code
// thanks to @shiffman and @jmutterer!
static float r=30;
static float s=10;
int i, j;
static int maxI = 60;
static int maxJ = 25;
float directions[][] = new float[maxJ][maxI];
void setup() {
size(650, 650);
frameRate(10);
i = 0;
j = 0;
}
void draw() {
background(72, 58, 170);
translate (width/2, height/2);
scale (1, -1);
strokeWeight(1.5);
stroke (134, 122, 222);
/*
if(j < maxJ-1) i++;
if (i == maxI){
++j;
i = 0;
println(j);
//j == 13 hits borders
}
*/
j++;
for(int i=0; i<maxI; ++i) {
stroke (134, 122, 222, 255-15*j);
float direction = (random(1)>0.5)?-1:1;
directions[j][i] = direction;
}
for(int y = 0; y < j; ++y) {
for(int x = 0; x < maxI && !(y == j && x > i); ++x) {
stroke (134, 122, 222, 50+8*y);
float a = (x-directions[y][x]/2)*2*PI/60;
float b = (x+directions[y][x]/2)*2*PI/60;
line ((r+(maxJ - y)*s)*sin(a), (r+(maxJ - y)*s)*cos(a),
(r+(maxJ - (y+1))*s)*sin(b), (r+(maxJ - (y+1))*s)*cos(b));
}
}
if(j == maxJ - 1) {
for(int y = 0; y < maxJ - 1; ++y) {
for(int x = 0; x < maxI; ++x) {
directions[y][x] = directions[y+1][x];
}
}
j--;
i = 0;
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment