Ellan Suder – Project – 05

I used the code I wrote for the hexagonal grid as a base for the wallpaper’s tiling pattern. I drew a custom shape in its own function (called ‘flame’) and made it repeat. The triangle/sparks are generated randomly.

flame wallpaper

/*
Ellan Suder
15104 1 D
esuder@andrew.cmu.edu
Project-05
*/

var magentaColor;
var greenColor;
//var blueColor;

function setup() {
    createCanvas(500, 500);
    magentaColor = color(238,116,217);
    greenColor = color(156, 255, 209);
    //blueColor = color(104,142,243);
}


function draw() {
    background(9,9,9);
    var tw = 100;
    var th = 100;
    var oy = 0;
    var ox = 0;
    for (var y = 0; y < 8; y++) {
        for (var x = 0; x < 8; x++) {
          if (y%2 === 0) {
            var px = ox + x * tw;
          } else if (y%2 !== 0 & x < 9) {
            var px = ox +tw/2 + x * tw;
          }
            var py = oy + y * th;
            
            fill(greenColor);
            flame(px,py,20); //outer flame
            fill(magentaColor); //inner flame
            flame(px,py+10,10);
            sparks(px,py,20);
        }
    }
  noLoop();
}
      
function flame(x,y,size) {
    stroke(magentaColor);
    strokeWeight(1.5);
    
    beginShape();
    vertex (x,y-4*size/3);     //1
      vertex (x+size/4,y-size);     //2
        vertex (x+size/3,y-size/3);     //3
      vertex (x+2*size/3,y-3*size/4);     //4
    vertex (x+size,y-size);     //5
      vertex (x+3*size/4,y+size/3);     //6
        vertex (x+size/2,y+3*size/4);     //7
          vertex (x,y+size);     //8
        vertex (x-size/2,y+3*size/4);     //9
      vertex (x-3*size/4,y+size/3);     //10
    vertex (x-size,y-size);     //11
      vertex (x-2*size/3,y-3*size/4);     //12
      vertex (x-size/3,y-size/3);     //13
        vertex (x-size/4,y-size);     //14
    endShape(CLOSE);     //back to 1  
}

function sparks(x,y,size) {
    a = size*random(-1,1);
    b = random(.9,1.1);
    triangle((x+a)*b,(y+a),
             (x+size/5+a)*b,(y+size/5+a),
             (x-size/5+a)*b,(y+size/5+a)*b);
    
    c = size*random(-1,1);
    d = random(.9,1.1);
    triangle((x+c)*d,(y+c)*d,
             (x+size/5+c)*d,(y+size/5+c),
             (x-size/5+c)*d,(y+size/5+c)*d);
  
    e = size*random(-1,1);
    f = random(.9,1.1);
    triangle((x+e)*f,(y+e)*f,
             (x+size/5+e)*f,(y+size/5+e)*f,
             (x-size/5+e)*f,(y+size/5+e)*f);
}