Daily Coding(p5.js) No.21

Code

l

et st;

function setup() {
   createCanvas(500, 500);
   noLoop();
   
}

function draw() {
   background(0);
   stroke(254,204,204,100);
   //stroke(204,255,255,100);
   strokeWeight(3);
   line(width/2, 0, width/2, height);
   //stroke(204,255,255,40);
   stroke(254,204,204,40);
   line(width/2, 60, width, 60);
   line(width/2, height/2, width, height/2);
   line(width/2, 410, width, 410);
   

   strokeWeight(2);
   st = height/3;
   for(let i = 0; i < int(random(6,9)); i++){
       //stroke(204,255,255,25);
       stroke(254,204,204,25);

       ell(width/2, random(st, st + 20), random(30,60), 15);
       st += 20;
   }

   st = height/10;
   for(let i = 0; i < int(random(3,6)); i++){
       //stroke(204,255,255,10);
       stroke(254,204,204,10); 
       ell(width/2, random(st, st + 10), 30 ,15);
       st += 10;
   }

   st = height-50;
   for(let i = 0; i < int(random(3,6)); i++){
       //stroke(204,255,255,10);
       stroke(254,204,204,10);
       ell(width/2, random(st, st - 10), 25 ,15);
       st -= 10;
   }
   //stroke(204,255,255,50);
   stroke(254,204,204,50);
   randomline(100, width/2, 50, 350, 70, 1);
   randomline(100, width/2, 50, 350, 70, 2);
   randomline(200, width/2, height/2-20, 450, 150, 1);
   randomline(200, width/2, height/2-20, 450, 150, 2);
   randomline(100, width/2, height-100, 300, 20, 1);
   randomline(100, width/2, height-100, 300, 20, 2);

   
}

function ell(x, y, a, b) {
   let start = random(0, PI);
   let goal = random(PI, PI*2);
   
   for(let theta = start; theta < goal; theta+=0.01) {
       //rad = radians(theta);
       point(x + a * cos(theta), y + b * sin(theta));
   }
}

function randomline(count,a, b, w, h, mode) {
   if(mode == 1) {
       for(let i = 0; i < count; i++) {
           let x = random(a-w/2, a+w/2);
           let y = random(b-h/2, b+h/2);
           line(x, y, x, y + int(random(50)));
       }
   } else if(mode == 2) {
       for(let i = 0; i < count*2; i++) {
           let x1 = random(a-w/2, a+w/2);
           let y1 = random(b-h/2, b+h/2);
           let r = int(random(20,30));
           let the = random(0,PI*2);
           let x2 = x1 + r * cos(the);
           let y2 = y1 + r * sin(the);
           line(x1, y1, x2, y2);
           
       }
   }
}

function keyPressed() {
   if(key == 'r') redraw();
}

ではでは