triangles.pde

int maxLevel;

void setup() {
  
  size(600, 800);
  background(0);
  stroke(255);
  smooth();
  noFill();
  
  translate(width/2, height/2);
  
  float deg = 360.0 / 6.0;
  float triangleSize = 500;
  float triangleMult = 0.579;
  maxLevel = 4;

/*  
  for(int i = 0; i < 6; i++) {
    pushMatrix();
    rotate(radians(i * deg));
   drawTriangle(0, 0, triangleSize, triangleMult, 0);
   popMatrix();
}
*/

  drawTriangle(0, 0, triangleSize, triangleMult, 0);
}

void drawTriangle(float x, float y, float triSize, float triMult, int level) {
  
  pushMatrix(); 
  translate(x, y); 
  triangle(0, 0, (-triSize/2 * triMult) , triSize/2, (triSize/2 * triMult), triSize/2);
  
  if (level < maxLevel) {
    
    level++;
    
    // draw top
    if(random(1) > 0.2)
      drawTriangle(0, 0, triSize/2, triMult, level);
    
    // draw bottom right
    if(random(1) > 0.2)
      drawTriangle(triSize/7, triSize/4, triSize/2, triMult, level);
    
    // draw bottom left
    if(random(1) > 0.2)
      drawTriangle(-(triSize/7), triSize/4, triSize/2, triMult, level);
  }
  popMatrix();
}