/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.sH-hsJ9iBW6/rev.3714
 * 
 * authors: 
 *   Sofiya Shakeel

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



angle=0;
speed=0.2;
float sizeA = sin(radians(PI)) * 300;
float sizeB = cos(radians(frameCount)) * 300;
int i=90;

void setup(){
    size(500,500);
    background(0);
       stroke(random(255),random(100),random(100),i);
    strokeWeight(1);
    }
void draw(){

    noFill();
    translate(width/2,height/2);
    rotate(angle);  
    triangle(0,0,sizeA+100,sizeA,sizeB,sizeB-100);
    angle+=1;
    i+=1;
    if(i>50)
    {
        i=90;
    }
       
}