Four Leaf Clovers

I have the page draw a circle for the hemisphere we can see, a grid of points within the radius, all at a random location inside of the black box. I want to draw the four leaf clover to the surface of the world, but for tonight I just drew some green circles for leaves and orange lines for stems. You click inside of the blue hemisphere to make a four leaf clover and hit the 'click to generate another' to clear and draw a new world.