triangles_relative

void setup()
{
  size(300, 300);
  
  //position and draw two triangles in different places
  drawMyTriangle(10, 10);
  drawMyTriangle(50, 50);
}



void draw()
{
  //Remove the // from the line of code below to see what happens when you draw a new white background at the start of every frame
  //background(255);
  
  //draw triangles at a y-position of 100, at a random x-position
  drawMyTriangle(int(random(0, width)), 100);
}



void drawMyTriangle(int x, int y)
{
   triangle(x+0, y+20, x+20, y+0, x+40, y+20); 
}