/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.NYrzpzg65G1/rev.1244
 * 
 * authors: 
 *   erdely daniel
 *   
 *   Janos Erdos Jr.
 *   dani

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



boolean looping = true;

void setup() {     
    size(600, 600); 
}

void spiral(){ 

    final float ratio = 0.9, delta = 0.1;
    float angle = 0.01*mouseX, radius = 120;

    stroke(255);
    strokeWeight(1);

    while(radius > 2){
        line(
        sin(angle)*radius, 
        cos(angle)*radius, 
        sin(angle+delta)*radius*ratio, 
        cos(angle+delta)*radius*ratio
    );

        angle += delta;
        radius *= ratio;
    }

}

void spiral12(){
    
    pushMatrix();
    for(int i = 0; i < 12; i++){
        spiral();
        rotate(-PI/6); // 90 fokkal balra.
    }
    popMatrix();
}

void felspiral(float radius){

//    final float ratio = 0.9, delta = 0.241   ;
    
    //final float ratio = 0.95, delta = 0.053 ;
       final float ratio = 0.95, delta = 0.11 ;
 
    float angle = -PI/2;

    stroke(255);
    strokeWeight(1);

    while(radius > 4){
        line(
        sin(angle)*radius, 
        cos(angle)*radius, 
        sin(angle+delta)*radius*ratio, 
        cos(angle+delta)*radius*ratio
    );

        angle += delta;
        radius *= ratio;
    }
}

void duplaspiral(float x1, float y1, float x2, float y2){
    float d = dist(x1,y1,x2,y2);
    float a = atan2(y1-y2, x1-x2);
    
    final float phi = 1.6180339887;
    
    pushMatrix();
     translate(x1,y1);
   //felspiral(d);
      rotate(a);
     felspiral(d/phi);
    popMatrix();
    
    pushMatrix();
     translate(x2,y2);
     rotate(PI+a);
     felspiral(d-d/phi);
    popMatrix();
}

void draw() {
   background(180,12,32);
   
   stroke(255,62);
line(mouseX,mouseY,width/2,height/2);
   stroke(255);


translate(width/2, height/2);
rotate(atan2(height/2-mouseY,width/2-mouseX));

float d = mouseX/2;

hatszog(d);

translate(d,0);
hatszog(d);

translate(-d-d,0);
hatszog(d);

translate(d/2, sqrt(3)/2*d);
hatszog(d);

translate(d, 0);
hatszog(d);

translate(0, -sqrt(3)*d);
hatszog(d);

}

void hatszog(float r){
        for(int i = 0; i < 6; i++){
    rotate(PI/3);
       duplaspiral(0,0,r,0);
       duplaspiral(r,0, 0, 0);
    }
    }

void mousePressed(){
    if(looping)
     noLoop();
     else loop();
     looping=!looping;
    }