// I would like to express the rose using simple shapes
// I tried to give a strong impression by drawing a color and black in turn 
// By rotation of ellipses and rectangles, I wanted to express dynamism
//
// Title: Digital Rose
//
// setup
size(400,400);
background(0);
smooth();

float a;
float inc;
float x1, x2, x3, x4;
float y1, y2, y3, y4;
float rad;
int col = #a00000;
int fil = 1;

// petal
a = PI/4.0;
inc = TWO_PI/25.0;
rad = 300;
col = #a00000;
for (int i = 0;i < 70; i=i+8) {
   x1 = sin(a) * rad;
   y1 = cos(a) * rad;
   x2 = sin(a+PI/2) * rad;
   y2 = cos(a+PI/2) * rad;
   x3 = sin(a+PI) * rad;
   y3 = cos(a+PI) * rad;
   x4 = sin(a-PI/2) * rad;
   y4 = cos(a-PI/2) * rad;
   fill(col);
   if (fil == 1) {
      fill(0);
      fil = 0;
   }
   else {
      fill(col);
      fil = 1;
   }
   quad(x1+200, y1+200, x2+200, y2+200, x3+200, y3+200, x4+200, y4+200);
   a = a + inc;
   rad = rad*0.82;
   col = col + 0x001010;
}
// pistil
rad = 27;
col = #FF8408;
for (int i = 0;i < 100; i=i+4) {
   x1 = sin(a) * rad;
   y1 = cos(a) * rad;
   if (fil == 0) {
      fill(0);
      fil = 1;
   }
   else {
      fill(col);
      fil = 0;
      col = col + 0x000808;
   }
   ellipse(x1+200, y1+200, rad, rad);
   a = a + inc;
}

fill(#FF8408);
beginShape();
vertex(196, 159);
vertex(206, 163);
vertex(209, 166);
vertex(212, 174);
vertex(209, 181);
vertex(198, 190);
vertex(205, 175);
vertex(200, 166);
vertex(193, 160);
endShape();

// leaf
fill(#095F2A);
triangle(0, 350, 0, 399, 40, 399);
triangle(399, 350, 399, 399, 350, 399);
triangle(0, 0, 49, 0, 0, 49);
triangle(350, 0, 399, 0, 399, 49);